Between January 1 and December 31, 2007, AVO located 6,664 earthquakes of which 5,660 occurred within 20 kilometers of the 33 volcanoes monitored by the Alaska Volcano Observatory. Monitoring highlights in 2007 include: the eruption of Pavlof Volcano, volcanic-tectonic earthquake swarms at the Augustine, Illiamna, and Little Sitkin volcanic centers, and the cessation of episodes of unrest at Fourpeaked Mountain, Mount Veniaminof and the northern Atka Island volcanoes (Mount Kliuchef and Korovin Volcano). This catalog includes descriptions of : (1) locations of seismic instrumentation deployed during 2007; (2) earthquake detection, recording, analysis, and data archival systems; (3) seismic velocity models used for earthquake locations; (4) a summary of earthquakes located in 2007; and (5) an accompanying UNIX tar-file with a summary of earthquake origin times, hypocenters, magnitudes, phase arrival times, location quality statistics, daily station usage statistics, and all files used to determine the earthquake locations in 2007.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ds367","usgsCitation":"Dixon, J.P., Stihler, S.D., and Power, J.A., 2008, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2007: U.S. Geological Survey Data Series 367, HTML Document, https://doi.org/10.3133/ds367.","productDescription":"HTML Document","onlineOnly":"N","additionalOnlineFiles":"N","temporalStart":"2007-01-01","temporalEnd":"2007-12-31","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":11714,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/367/","linkFileType":{"id":5,"text":"html"}},{"id":410203,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_84265.htm","linkFileType":{"id":5,"text":"html"}},{"id":195398,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ds367.JPG"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -143.25,\n 50\n ],\n [\n -143.25,\n 62.333\n ],\n [\n -179.9,\n 62.333\n ],\n [\n -179.9,\n 50\n ],\n [\n -143.25,\n 50\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f3e4b07f02db5ef6c0","contributors":{"authors":[{"text":"Dixon, James P. 0000-0002-8478-9971 jpdixon@usgs.gov","orcid":"https://orcid.org/0000-0002-8478-9971","contributorId":3163,"corporation":false,"usgs":true,"family":"Dixon","given":"James","email":"jpdixon@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":296948,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stihler, Scott D.","contributorId":31373,"corporation":false,"usgs":true,"family":"Stihler","given":"Scott","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":296949,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Power, John A. 0000-0002-7233-4398 jpower@usgs.gov","orcid":"https://orcid.org/0000-0002-7233-4398","contributorId":2768,"corporation":false,"usgs":true,"family":"Power","given":"John","email":"jpower@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":296947,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":86148,"text":"sir20085116 - 2008 - Quantifying Ground-Water and Surface-Water Discharge from Evapotranspiration Processes in 12 Hydrographic Areas of the Colorado Regional Ground-Water Flow System, Nevada, Utah, and Arizona","interactions":[],"lastModifiedDate":"2012-03-08T17:16:28","indexId":"sir20085116","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-5116","title":"Quantifying Ground-Water and Surface-Water Discharge from Evapotranspiration Processes in 12 Hydrographic Areas of the Colorado Regional Ground-Water Flow System, Nevada, Utah, and Arizona","docAbstract":"Rapid population growth in southern Nevada has increased the demand for additional water supplies from rural areas of northern Clark and southern Lincoln counties to meet projected water-supply needs. Springs and rivers in these undeveloped areas sustain fragile riparian habitat and may be susceptible to ground-water withdrawals. Most natural ground-water and surface-water discharge from these basins occurs by evapotranspiration (ET) along narrow riparian corridors that encompassed about 45,000 acres or about 1 percent of the study area.\r\n\r\nThis report presents estimates of ground- and surface-water discharge from ET across 3.5 million acres in 12 hydrographic areas of the Colorado Regional Ground-Water Flow System. Ground-and surface-water discharge from ET were determined by identifying areas of ground- and surface-water ET, delineating areas of similar vegetation and soil conditions (ET units), and computing ET rates for each of these ET units. Eight ET units were identified using spectral-reflectance characteristics determined from 2003 satellite imagery, high-resolution aerial photography, and land classification cover. These ET units are dense meadowland vegetation (200 acres), dense woodland vegetation (7,200 acres), moderate woodland vegetation (6,100 acres), dense shrubland vegetation (5,800 acres), moderate shrubland vegetation (22,600 acres), agricultural fields (3,100 acres), non-phreatophytic areas (3,400,000 acres), and open water (300 acres).\r\n\r\nET from diffuse ground-water and channelized surface-water is expressed as ETgs and is equal to the difference between total annual ET and precipitation. Total annual ET rates were calculated by the Bowen ratio and eddy covariance methods using micrometeorological data collected from four sites and estimated at 3.9 ft at a dense woodland site (February 2003 to March 2005), 3.6 ft at a moderate woodland site (July 2003 to October 2006), 2.8 ft at a dense shrubland site (June 2005 to October 2006), and 1.5 ft at a moderate shrubland site (April 2006 to October 2006). Annual ETgs rates were 3.4 ft for dense woodland vegetation, 3.2 ft for moderate woodland vegetation, 2.2 ft for dense shrubland vegetation, and 1.0 ft for moderate shrubland vegetation. Published annual rates of ETgs were used for the other ET units found in the study area. These rates were 3.4 ft for dense meadowland vegetation, 5.2 ft for agricultural fields, and 4.9 ft for open water. For the non-phreatophytic ET unit, ETgs was assumed to be zero.\r\n\r\nEstimated ground- and surface-water discharge from ET was calculated by multiplying the ETgs by the ET-unit acreage and equaled 24,480 acre-ft for dense woodland vegetation, 19,520 acre-ft for moderate woodland vegetation, 12,760 acre-ft for dense shrubland vegetation, 22,600 acre-ft for moderate shrubland vegetation, 680 acre-ft for dense meadowland vegetation, 16,120 acre-ft for agricultural fields, 1,440 acre-ft for open water, and 0 acre-ft for the non-phreatophytic ET unit. Estimated ground-water and surface-water discharge from ET from each hydrographic area was calculated by summing the total annual ETgs rate for ET units found within each hydrographic area and equaled 1,952 acre-ft for the Black Mountains Area, 6,080 acre-ft for California Wash, 4,090 acre-ft for the Muddy River Springs Area, 11,510 acre-ft for Lower Moapa Valley, 51,960 acre-ft for the Virgin River Valley, 16,168 acre-ft for Lower Meadow Valley Wash, 5,840 acre-ft for Clover Valley, and 0 acre-ft for Coyote Spring Valley, Kane Springs Valley, Tule Desert, Hidden Valley (North), and Garnet Valley. The annual discharge from ETgs for the study area totals about 98,000 acre-ft.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/sir20085116","collaboration":"Prepared in cooperation with the National Park Service, the Bureau of Land Management, and the Fish and Wildlife Service","usgsCitation":"DeMeo, G.A., Smith, J.L., Damar, N.A., and Darnell, J., 2008, Quantifying Ground-Water and Surface-Water Discharge from Evapotranspiration Processes in 12 Hydrographic Areas of the Colorado Regional Ground-Water Flow System, Nevada, Utah, and Arizona: U.S. Geological Survey Scientific Investigations Report 2008-5116, Report: viii, 23 p.; Plate: 36 x 50 inches, https://doi.org/10.3133/sir20085116.","productDescription":"Report: viii, 23 p.; Plate: 36 x 50 inches","additionalOnlineFiles":"Y","temporalStart":"2003-02-01","temporalEnd":"2006-10-31","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"links":[{"id":195064,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11713,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2008/5116/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -115.5,35.75 ], [ -115.5,38 ], [ -113.5,38 ], [ -113.5,35.75 ], [ -115.5,35.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a87e4b07f02db64ebd7","contributors":{"authors":[{"text":"DeMeo, Guy A. gademeo@usgs.gov","contributorId":2124,"corporation":false,"usgs":true,"family":"DeMeo","given":"Guy","email":"gademeo@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":296944,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, J. LaRue jlsmith@usgs.gov","contributorId":1863,"corporation":false,"usgs":true,"family":"Smith","given":"J.","email":"jlsmith@usgs.gov","middleInitial":"LaRue","affiliations":[],"preferred":true,"id":296943,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Damar, Nancy A. 0000-0002-7520-7386 nadamar@usgs.gov","orcid":"https://orcid.org/0000-0002-7520-7386","contributorId":4154,"corporation":false,"usgs":true,"family":"Damar","given":"Nancy","email":"nadamar@usgs.gov","middleInitial":"A.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":296945,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Darnell, Jon","contributorId":103323,"corporation":false,"usgs":true,"family":"Darnell","given":"Jon","affiliations":[],"preferred":false,"id":296946,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":86153,"text":"sir20085103 - 2008 - Hydrologic conditions and quality of rainfall and storm runoff for two agricultural areas of the Oso Creek Watershed, Nueces County, Texas, 2005-07","interactions":[],"lastModifiedDate":"2016-08-23T13:06:17","indexId":"sir20085103","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-5103","title":"Hydrologic conditions and quality of rainfall and storm runoff for two agricultural areas of the Oso Creek Watershed, Nueces County, Texas, 2005-07","docAbstract":"The U.S. Geological Survey, in cooperation with the Texas State Soil and Water Conservation Board, Coastal Bend Bays and Estuaries Program, and Texas AgriLife Research and Extension Center at Corpus Christi, studied hydrologic conditions and quality of rainfall and storm runoff of two (primarily) agricultural areas (subwatersheds) of the Oso Creek watershed in Nueces County, Texas. One area, the upper West Oso Creek subwatershed, is 5,145 acres. The other area, a subwatershed drained by an unnamed Oso Creek tributary (hereinafter, Oso Creek tributary), is 5,287 acres. Rainfall and runoff (streamflow) were continuously monitored at the outlets of the two subwatersheds during October 2005-September 2007. Fourteen rainfall samples were collected and analyzed for nutrients and major inorganic ions. Nineteen composite runoff samples (10 West Oso Creek, nine Oso Creek tributary) were collected and analyzed for nutrients, major inorganic ions, and pesticides. Twenty-two discrete suspended-sediment samples (10 West Oso Creek, 12 Oso Creek tributary) and 13 bacteria samples (eight West Oso Creek, five Oso Creek tributary) were collected and analyzed. These data were used to estimate, for selected constituents, rainfall deposition to and runoff loads and yields from the study subwatersheds. Quantities of fertilizers and pesticides applied in the subwatersheds were compared with quantities of nutrients and pesticides in rainfall and runoff. For the study period, total rainfall was greater than average. Most of the runoff at both subwatershed outlet sites occurred in response to a few specific storm periods. The West Oso Creek subwatershed produced more runoff during the study period than the Oso Creek tributary subwatershed, 10.83 inches compared with 7.28 inches. Runoff response was quicker and peak flows were higher in the West Oso Creek subwatershed than in the Oso Creek tributary subwatershed. Total nitrogen runoff yield for the 2-year study period averaged 2.61 pounds per acre per year from the West Oso Creek subwatershed and 0.966 pound per acre per year from the Oso Creek tributary subwatershed. Total phosphorus yields from the West Oso Creek and the Oso Creek tributary subwatersheds for the 2-year period were 0.776 and 0.498 pound per acre per year. Runoff yields of nitrogen and phosphorus were relatively small compared to inputs of nitrogen in fertilizer and rainfall deposition. Average annual runoff yield of total nitrogen (subwatersheds combined) represents about 2.4 percent of nitrogen applied as fertilizer and nitrogen entering the subwatersheds through rainfall deposition. Average annual runoff yield of total phosphorus (subwatersheds combined) represents about 4.4 percent of the phosphorus in applied fertilizer and rainfall deposition. Suspended-sediment yields from the West Oso Creek subwatershed were more than twice those from the Oso Creek tributary subwatershed. The average suspended-sediment yield from the West Oso Creek subwatershed was 582 pounds per acre per year. The average suspended-sediment yield from the Oso Creek tributary subwatershed was 257 pounds per acre per year. Twenty-two herbicides and eight insecticides were detected in runoff samples collected from the two subwatershed outlet sites. At the West Oso Creek site, 18 herbicides and four insecticides were detected, and at the Oso Creek tributary site, 17 herbicides and six insecticides. Seventeen pesticides were detected in only one sample at low concentrations (near the laboratory reporting level). Atrazine, atrazine degradation byproducts 2-chloro-4-isopropylamino-6-amino-s-triazine (CIAT) and 2-hydroxy-4-isopropylamino-6-ethylamino-s-triazine (OIET), glyphosate, and glyphosate byproduct aminomethylphosphonic acid (AMPA) were detected in all samples. Of all pesticides detected in runoff, the highest runoff yields were for glyphosate, 0.013 pound per acre per year for the West Oso Creek subwatershed and 0.001 pound per acre per year for the Oso Creek t
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20085103","collaboration":"Prepared in cooperation with the Texas State Soil and Water Conservation Board, Coastal Bend Bays and Estuaries Program, and Texas AgriLife Research and Extension Center at Corpus Christi","usgsCitation":"Ockerman, D.J., 2008, Hydrologic conditions and quality of rainfall and storm runoff for two agricultural areas of the Oso Creek Watershed, Nueces County, Texas, 2005-07 (Version 1.0): U.S. Geological Survey Scientific Investigations Report 2008-5103, vi, 67 p., https://doi.org/10.3133/sir20085103.","productDescription":"vi, 67 p.","onlineOnly":"N","additionalOnlineFiles":"N","temporalStart":"2005-10-01","temporalEnd":"2007-09-30","costCenters":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"links":[{"id":190639,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11718,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2008/5103/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -97.68333333333334,27.583333333333332 ], [ -97.68333333333334,27.883333333333333 ], [ -97.3,27.883333333333333 ], [ -97.3,27.583333333333332 ], [ -97.68333333333334,27.583333333333332 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2de4b07f02db61438a","contributors":{"authors":[{"text":"Ockerman, Darwin J. 0000-0003-1958-1688 ockerman@usgs.gov","orcid":"https://orcid.org/0000-0003-1958-1688","contributorId":1579,"corporation":false,"usgs":true,"family":"Ockerman","given":"Darwin","email":"ockerman@usgs.gov","middleInitial":"J.","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":296965,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":86158,"text":"ofr20071222 - 2008 - Digital Data for Volcano Hazards of the Mount Hood Region, Oregon","interactions":[],"lastModifiedDate":"2021-01-19T13:04:53.350858","indexId":"ofr20071222","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1222","title":"Digital Data for Volcano Hazards of the Mount Hood Region, Oregon","docAbstract":"Snow-clad Mount Hood dominates the Cascade skyline from the Portland metropolitan area to the wheat fields of Wasco and Sherman Counties. The mountain contributes valuable water, scenic, and recreational resources that help sustain the agricultural and tourist segments of the economies of surrounding cities and counties. Mount Hood is also one of the major volcanoes of the Cascade Range, having erupted repeatedly for hundreds of thousands of years, most recently during two episodes in the past 1,500 yr. The last episode ended shortly before the arrival of Lewis and Clark in 1805. When Mount Hood erupts again, it will severely affect areas on its flanks and far downstream in the major river valleys that head on the volcano. Volcanic ash may fall on areas up to several hundred kilometers downwind.\r\n\r\nThe purpose of the volcano hazard report USGS Open-File Report 97-89 (Scott and others, 1997) is to describe the kinds of hazardous geologic events that have happened at Mount Hood in the past and to show which areas will be at risk when such events occur in the future. \r\n\r\nThis data release contains the geographic information system (GIS) data layers used to produce the Mount Hood volcano hazard map in USGS Open-File Report 97-89. Both proximal and distal hazard zones were delineated by scientists at the Cascades Volcano Observatory and depict various volcano hazard areas around the mountain. A second data layer contains points that indicate estimated travel times of lahars.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20071222","usgsCitation":"Schilling, S., Doelger, S., Scott, W.E., Pierson, T., Costa, J.E., Gardner, C.A., Vallance, J., and Major, J.J., 2008, Digital Data for Volcano Hazards of the Mount Hood Region, Oregon (Version 1.0): U.S. Geological Survey Open-File Report 2007-1222, HTML Document, https://doi.org/10.3133/ofr20071222.","productDescription":"HTML Document","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":195428,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11723,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1222/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Oregon","otherGeospatial":"Mount Hood region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.57995605468749,\n 44.73892994307368\n ],\n [\n -121.3604736328125,\n 44.73892994307368\n ],\n [\n -121.3604736328125,\n 45.471688258104614\n ],\n [\n -122.57995605468749,\n 45.471688258104614\n ],\n [\n -122.57995605468749,\n 44.73892994307368\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d619","contributors":{"authors":[{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":296992,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doelger, S.","contributorId":14901,"corporation":false,"usgs":true,"family":"Doelger","given":"S.","email":"","affiliations":[],"preferred":false,"id":296987,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scott, W. E.","contributorId":22773,"corporation":false,"usgs":true,"family":"Scott","given":"W.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":296988,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pierson, T.C. 0000-0001-9002-4273","orcid":"https://orcid.org/0000-0001-9002-4273","contributorId":41855,"corporation":false,"usgs":true,"family":"Pierson","given":"T.C.","affiliations":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":296991,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Costa, J. E.","contributorId":28977,"corporation":false,"usgs":true,"family":"Costa","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":296989,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gardner, C. A.","contributorId":75916,"corporation":false,"usgs":true,"family":"Gardner","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":296994,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Vallance, J.W.","contributorId":45336,"corporation":false,"usgs":true,"family":"Vallance","given":"J.W.","affiliations":[],"preferred":false,"id":296993,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Major, Jon J. 0000-0003-2449-4466 jjmajor@usgs.gov","orcid":"https://orcid.org/0000-0003-2449-4466","contributorId":439,"corporation":false,"usgs":true,"family":"Major","given":"Jon","email":"jjmajor@usgs.gov","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":296990,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":86159,"text":"ofr20071223 - 2008 - Digital data for volcano hazards in the Crater Lake Region, Oregon","interactions":[],"lastModifiedDate":"2019-04-03T16:32:44","indexId":"ofr20071223","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1223","title":"Digital data for volcano hazards in the Crater Lake Region, Oregon","docAbstract":"Crater Lake lies in a basin, or caldera, formed by collapse of the Cascade volcano known as Mount Mazama during a violent, climactic eruption about 7,700 years ago. This event dramatically changed the character of the volcano so that many potential types of future events have no precedent there. This potentially active volcanic center is contained within Crater Lake National Park, visited by 500,000 people per year, and is adjacent to the main transportation corridor east of the Cascade Range. Because a lake is now present within the most likely site of future volcanic activity, many of the hazards at Crater Lake are different from those at most other Cascade volcanoes. Also significant are many faults near Crater Lake that clearly have been active in the recent past. These faults, and historic seismicity, indicate that damaging earthquakes can occur there in the future. The USGS Open-File Report 97-487 (Bacon and others, 1997) describes the various types of volcano and earthquake hazards in the Crater Lake area, estimates of the likelihood of future events, recommendations for mitigation, and a map of hazard zones. The geographic information system (GIS) volcano hazard data layers used to produce the Crater Lake earthquake and volcano hazard map in USGS Open-File Report 97-487 are included in this data set. USGS scientists created one GIS data layer, c_faults, that delineates these faults and one layer, cballs, that depicts the downthrown side of the faults. Additional GIS layers chazline, chaz, and chazpoly were created to show 1) the extent of pumiceous pyroclastic-flow deposits of the caldera forming Mount Mazama eruption, 2) silicic and mafic vents in the Crater Lake region, and 3)the proximal hazard zone around the caldera rim, respectively.
","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20071223","usgsCitation":"Schilling, S., Doelger, S., Bacon, C., Mastin, L., Scott, K., and Nathenson, M., 2008, Digital data for volcano hazards in the Crater Lake Region, Oregon (Version 1.0): U.S. Geological Survey Open-File Report 2007-1223, Available online only, https://doi.org/10.3133/ofr20071223.","productDescription":"Available online only","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":11724,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1223/","linkFileType":{"id":5,"text":"html"}},{"id":190603,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d63f","contributors":{"authors":[{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":296998,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doelger, S.","contributorId":14901,"corporation":false,"usgs":true,"family":"Doelger","given":"S.","email":"","affiliations":[],"preferred":false,"id":296996,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bacon, C. R. 0000-0002-2165-5618","orcid":"https://orcid.org/0000-0002-2165-5618","contributorId":21522,"corporation":false,"usgs":true,"family":"Bacon","given":"C. R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":296997,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mastin, L.G.","contributorId":80313,"corporation":false,"usgs":true,"family":"Mastin","given":"L.G.","email":"","affiliations":[],"preferred":false,"id":297000,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Scott, K.E.","contributorId":12570,"corporation":false,"usgs":true,"family":"Scott","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":296995,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Nathenson, M.","contributorId":46632,"corporation":false,"usgs":true,"family":"Nathenson","given":"M.","email":"","affiliations":[],"preferred":false,"id":296999,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":86160,"text":"ofr20071224 - 2008 - Digital data for volcano hazards in the Mount Jefferson Region, Oregon","interactions":[],"lastModifiedDate":"2019-04-05T12:45:33","indexId":"ofr20071224","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1224","title":"Digital data for volcano hazards in the Mount Jefferson Region, Oregon","docAbstract":"Mount Jefferson has erupted repeatedly for hundreds of thousands of years, with its last eruptive episode during the last major glaciation which culminated about 15,000 years ago. Geologic evidence shows that Mount Jefferson is capable of large explosive eruptions. The largest such eruption occurred between 35,000 and 100,000 years ago. If Mount Jefferson erupts again, areas close to the eruptive vent will be severely affected, and even areas tens of kilometers (tens of miles) downstream along river valleys or hundreds of kilometers (hundreds of miles) downwind may be at risk. Numerous small volcanoes occupy the area between Mount Jefferson and Mount Hood to the north, and between Mount Jefferson and the Three Sisters region to the south. These small volcanoes tend not to pose the far-reaching hazards associated with Mount Jefferson, but are nonetheless locally important. A concern at Mount Jefferson, but not at the smaller volcanoes, is the possibility that small-to-moderate sized landslides could occur even during periods of no volcanic activity. Such landslides may transform as they move into lahars (watery flows of rock, mud, and debris) that can inundate areas far downstream.\r\n\r\nThe geographic information system (GIS) volcano hazard data layer used to produce the Mount Jefferson volcano hazard map in USGS Open-File Report 99-24 (Walder and others, 1999) is included in this data set. Both proximal and distal hazard zones were delineated by scientists at the Cascades Volcano Observatory and depict various volcano hazard areas around the mountain. ","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20071224","usgsCitation":"Schilling, S., Doelger, S., Walder, J.S., Gardner, C.A., Conrey, R.M., and Fisher, B., 2008, Digital data for volcano hazards in the Mount Jefferson Region, Oregon (Version 1.0): U.S. Geological Survey Open-File Report 2007-1224, HTML Document, https://doi.org/10.3133/ofr20071224.","productDescription":"HTML Document","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":11725,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1224/","linkFileType":{"id":5,"text":"html"}},{"id":195007,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db688a78","contributors":{"authors":[{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":297004,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doelger, S.","contributorId":14901,"corporation":false,"usgs":true,"family":"Doelger","given":"S.","email":"","affiliations":[],"preferred":false,"id":297001,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Walder, J. S.","contributorId":32561,"corporation":false,"usgs":true,"family":"Walder","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":297003,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gardner, C. A.","contributorId":75916,"corporation":false,"usgs":true,"family":"Gardner","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":297005,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Conrey, R. M.","contributorId":76772,"corporation":false,"usgs":true,"family":"Conrey","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":297006,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fisher, B.J.","contributorId":25593,"corporation":false,"usgs":true,"family":"Fisher","given":"B.J.","email":"","affiliations":[],"preferred":false,"id":297002,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":86161,"text":"ofr20071225 - 2008 - Digital data for volcano hazards at Newberry Volcano, Oregon","interactions":[],"lastModifiedDate":"2019-04-03T16:31:29","indexId":"ofr20071225","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1225","title":"Digital data for volcano hazards at Newberry Volcano, Oregon","docAbstract":"Newberry volcano is a broad shield volcano located in central Oregon, the product of thousands of eruptions, beginning about 600,000 years ago. At least 25 vents on the flanks and summit have been active during the past 10,000 years. The most recent eruption 1,300 years ago produced the Big Obsidian Flow. Thus, the volcano's long history and recent activity indicate that Newberry will erupt in the future. Newberry Crater, a volcanic depression or caldera has been the focus of Newberry's volcanic activity for at least the past 10,000 years. Newberry National Volcanic Monument, which is managed by the U.S. Forest Service, includes the caldera and extends to the Deschutes River. Newberry volcano is quiet. Local earthquake activity (seismicity) has been trifling throughout historic time. Subterranean heat is still present, as indicated by hot springs in the caldera and high temperatures encountered during exploratory drilling for geothermal energy.\r\n\r\nThe report USGS Open-File Report 97-513 (Sherrod and others, 1997) describes the kinds of hazardous geologic events that might occur in the future at Newberry volcano. A hazard-zonation map is included to show the areas that will most likely be affected by renewed eruptions. When Newberry volcano becomes restless, the eruptive scenarios described herein can inform planners, emergency response personnel, and citizens about the kinds and sizes of events to expect. \r\n\r\nThe geographic information system (GIS) volcano hazard data layers used to produce the Newberry volcano hazard map in USGS Open-File Report 97-513 are included in this data set. Scientists at the USGS Cascades Volcano Observatory created a GIS data layer to depict zones subject to the effects of an explosive pyroclastic eruption (tephra fallout, pyroclastic flows, and ballistics), lava flows, volcanic gasses, and lahars/floods in Paulina Creek. A separate GIS data layer depicts drill holes on the flanks of Newberry Volcano that were used to estimate the probability of coverage by future lava flows.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20071225","usgsCitation":"Schilling, S., Doelger, S., Sherrod, D.R., Mastin, L., and Scott, W.E., 2008, Digital data for volcano hazards at Newberry Volcano, Oregon (Version 1.0): U.S. Geological Survey Open-File Report 2007-1225, Available online only, https://doi.org/10.3133/ofr20071225.","productDescription":"Available online only","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":195293,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11726,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1225/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d661","contributors":{"authors":[{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":297009,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doelger, S.","contributorId":14901,"corporation":false,"usgs":true,"family":"Doelger","given":"S.","email":"","affiliations":[],"preferred":false,"id":297007,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sherrod, D. R.","contributorId":44559,"corporation":false,"usgs":true,"family":"Sherrod","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":297010,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mastin, L.G.","contributorId":80313,"corporation":false,"usgs":true,"family":"Mastin","given":"L.G.","email":"","affiliations":[],"preferred":false,"id":297011,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Scott, W. E.","contributorId":22773,"corporation":false,"usgs":true,"family":"Scott","given":"W.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":297008,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":86162,"text":"ds359 - 2008 - High-Resolution Digital Terrain Models of the Sacramento/San Joaquin Delta Region, California","interactions":[],"lastModifiedDate":"2012-02-02T00:14:25","indexId":"ds359","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"359","title":"High-Resolution Digital Terrain Models of the Sacramento/San Joaquin Delta Region, California","docAbstract":"The U.S. Geological Survey (USGS) Western Region Geographic Science Center, in conjunction with the USGS Water Resources Western Branch of Regional Research, has developed a high-resolution elevation dataset covering the Sacramento/San Joaquin Delta region of California. The elevation data were compiled photogrammically from aerial photography (May 2002) with a scale of 1:15,000. The resulting dataset has a 10-meter horizontal resolution grid of elevation values. The vertical accuracy was determined to be 1 meter. Two versions of the elevation data are available: the first dataset has all water coded as zero, whereas the second dataset has bathymetry data merged with the elevation data. The projection of both datasets is set to UTM Zone 10, NAD 1983. The elevation data are clipped into files that spatially approximate 7.5-minute USGS quadrangles, with about 100 meters of overlap to facilitate combining the files into larger regions without data gaps. The files are named after the 7.5-minute USGS quadrangles that cover the same general spatial extent. File names that include a suffix (_b) indicate that the bathymetry data are included (for example, sac_east versus sac_east_b). These files are provided in ESRI Grid format.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ds359","usgsCitation":"Coons, T., Soulard, C.E., and Knowles, N., 2008, High-Resolution Digital Terrain Models of the Sacramento/San Joaquin Delta Region, California (Version 1.0): U.S. Geological Survey Data Series 359, Report: iii, 9 p.; Metadata; Data, https://doi.org/10.3133/ds359.","productDescription":"Report: iii, 9 p.; Metadata; Data","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":293,"text":"Geographic Analysis and Monitoring Program","active":false,"usgs":true}],"links":[{"id":195763,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11727,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/359/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db63524c","contributors":{"authors":[{"text":"Coons, Tom","contributorId":24878,"corporation":false,"usgs":true,"family":"Coons","given":"Tom","email":"","affiliations":[],"preferred":false,"id":297014,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Soulard, Christopher E. 0000-0002-5777-9516 csoulard@usgs.gov","orcid":"https://orcid.org/0000-0002-5777-9516","contributorId":2642,"corporation":false,"usgs":true,"family":"Soulard","given":"Christopher","email":"csoulard@usgs.gov","middleInitial":"E.","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":297013,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Knowles, Noah 0000-0001-5652-1049 nknowles@usgs.gov","orcid":"https://orcid.org/0000-0001-5652-1049","contributorId":1380,"corporation":false,"usgs":true,"family":"Knowles","given":"Noah","email":"nknowles@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":297012,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":86163,"text":"ds366 - 2008 - Multibeam Sonar Mapping and Modeling of a Submerged Bryophyte Mat in Crater Lake, Oregon","interactions":[],"lastModifiedDate":"2017-11-22T12:30:02","indexId":"ds366","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"366","title":"Multibeam Sonar Mapping and Modeling of a Submerged Bryophyte Mat in Crater Lake, Oregon","docAbstract":"Traditionally, multibeam data have been used to map sea floor or lake floor morphology as well as the distribution of surficial facies in order to characterize the geologic component of benthic habitats. In addition to using multibeam data for geologic studies, we want to determine if these data can also be used directly to map the distribution of biota. Multibeam bathymetry and acoustic backscatter data collected in Crater Lake, Oregon, in 2000 are used to map the distribution of a deep-water bryophyte mat, which will be extremely useful for understanding the overall ecology of the lake. To map the bryophyte's distribution, depth range, acoustic backscatter intensity, and derived bathymetric index grids are used as inputs into a hierarchical decision-tree classification model. Observations of the bryophyte mat from over 23 line kilometers of lake-floor video collected in the summer of 2006 are used as controls for the model. The resulting map matches well with ground-truth information and shows that the bryophyte mat covers most of the platform surrounding Wizard Island as well as on outcrops around the caldera wall.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ds366","usgsCitation":"Dartnell, P., Collier, R., Buktenica, M., Jessup, S., Girdner, S., and Triezenberg, P., 2008, Multibeam Sonar Mapping and Modeling of a Submerged Bryophyte Mat in Crater Lake, Oregon (Version 1.0): U.S. Geological Survey Data Series 366, Available online only, https://doi.org/10.3133/ds366.","productDescription":"Available online only","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":645,"text":"Western Coastal and Marine Geology","active":false,"usgs":true}],"links":[{"id":195006,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11728,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/366/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4865","contributors":{"authors":[{"text":"Dartnell, Peter 0000-0002-9554-729X pdartnell@usgs.gov","orcid":"https://orcid.org/0000-0002-9554-729X","contributorId":2688,"corporation":false,"usgs":true,"family":"Dartnell","given":"Peter","email":"pdartnell@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":297016,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Collier, Robert","contributorId":101341,"corporation":false,"usgs":true,"family":"Collier","given":"Robert","email":"","affiliations":[],"preferred":false,"id":297019,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buktenica, Mark","contributorId":84858,"corporation":false,"usgs":true,"family":"Buktenica","given":"Mark","email":"","affiliations":[],"preferred":false,"id":297018,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jessup, Steven","contributorId":62304,"corporation":false,"usgs":true,"family":"Jessup","given":"Steven","email":"","affiliations":[],"preferred":false,"id":297017,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Girdner, Scott","contributorId":104454,"corporation":false,"usgs":true,"family":"Girdner","given":"Scott","affiliations":[],"preferred":false,"id":297020,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Triezenberg, Peter 0000-0002-7736-9186 ptriezenberg@usgs.gov","orcid":"https://orcid.org/0000-0002-7736-9186","contributorId":2409,"corporation":false,"usgs":true,"family":"Triezenberg","given":"Peter","email":"ptriezenberg@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":297015,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":86166,"text":"ofr20081246 - 2008 - High-resolution chirp and mini-sparker seismic-reflection data from the southern California continental shelf — Gaviota to Mugu Canyon","interactions":[],"lastModifiedDate":"2022-06-14T21:31:57.933443","indexId":"ofr20081246","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-1246","title":"High-resolution chirp and mini-sparker seismic-reflection data from the southern California continental shelf — Gaviota to Mugu Canyon","docAbstract":"The U.S. Geological Survey (USGS) collected high-resolution shallow seismic-reflection data in September, 2007, and June-July, 2008, from the continental shelf offshore of southern California between Gaviota and Mugu Canyon, in support of the California's State Waters Mapping Program. \r\n\r\nData were acquired using SIG 2mille mini-sparker and Edgetech chirp 512 instruments aboard the R/V Zephyr (Sept. 2007) and R/V Parke Snavely (June-July 2008). The survey area spanned approximately 120 km of coastline, and included shore-perpendicular transects spaced 1.0-1.5 km apart that extended offshore to at least the 3-mile limit of State waters, in water depths ranging from 10 m near shore to 300 m near the offshore extent of Mugu and Hueneme submarine canyons. Subbottom acoustic penetration spanned tens to several hundred meters, variable by location. \r\n\r\nThis report includes maps of the surveyed transects, linked to Google Earth software, as well as digital data files showing images of each transect in SEG-Y, JPEG, and TIFF formats. The images of sediment deposits, tectonic structure, and natural-gas seeps collected during this study provide geologic information that is essential to coastal zone and resource management at Federal, State and local levels, as well as to future research on the sedimentary, tectonic, and climatic record of southern California.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20081246","usgsCitation":"Sliter, R.W., Triezenberg, P., Hart, P.E., Draut, A.E., Normark, W.R., and Conrad, J.E., 2008, High-resolution chirp and mini-sparker seismic-reflection data from the southern California continental shelf — Gaviota to Mugu Canyon: U.S. Geological Survey Open-File Report 2008-1246, HTML Document, https://doi.org/10.3133/ofr20081246.","productDescription":"HTML Document","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"2007-09-12","temporalEnd":"2008-07-01","costCenters":[{"id":645,"text":"Western Coastal and Marine Geology","active":false,"usgs":true}],"links":[{"id":195243,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":402187,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_84287.htm","linkFileType":{"id":5,"text":"html"}},{"id":11733,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2008/1246/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","otherGeospatial":"Gaviota to Mugu Canyon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.21240234375001,\n 34.025347738147936\n ],\n [\n -119.00665283203124,\n 34.025347738147936\n ],\n [\n -119.00665283203124,\n 34.468070755169244\n ],\n [\n -120.21240234375001,\n 34.468070755169244\n ],\n [\n -120.21240234375001,\n 34.025347738147936\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a5ee4b07f02db633d18","contributors":{"authors":[{"text":"Sliter, Ray W. 0000-0003-0337-3454 rsliter@usgs.gov","orcid":"https://orcid.org/0000-0003-0337-3454","contributorId":1992,"corporation":false,"usgs":true,"family":"Sliter","given":"Ray","email":"rsliter@usgs.gov","middleInitial":"W.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":297025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Triezenberg, Peter J.","contributorId":32625,"corporation":false,"usgs":true,"family":"Triezenberg","given":"Peter J.","affiliations":[],"preferred":false,"id":297028,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hart, Patrick E. 0000-0002-5080-1426 hart@usgs.gov","orcid":"https://orcid.org/0000-0002-5080-1426","contributorId":2879,"corporation":false,"usgs":true,"family":"Hart","given":"Patrick","email":"hart@usgs.gov","middleInitial":"E.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":297027,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Draut, Amy E.","contributorId":92215,"corporation":false,"usgs":true,"family":"Draut","given":"Amy","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":297030,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Normark, William R.","contributorId":69570,"corporation":false,"usgs":true,"family":"Normark","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":297029,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Conrad, James E. 0000-0001-6655-694X jconrad@usgs.gov","orcid":"https://orcid.org/0000-0001-6655-694X","contributorId":2316,"corporation":false,"usgs":true,"family":"Conrad","given":"James","email":"jconrad@usgs.gov","middleInitial":"E.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":297026,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":86167,"text":"ofr20081233 - 2008 - Rainfall, discharge, and water-quality data during stormwater monitoring, July 1, 2007, to June 30, 2008; Halawa stream drainage basin and the H-1 storm drain, Oahu, Hawai'i","interactions":[],"lastModifiedDate":"2022-06-10T20:06:10.14225","indexId":"ofr20081233","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-1233","title":"Rainfall, discharge, and water-quality data during stormwater monitoring, July 1, 2007, to June 30, 2008; Halawa stream drainage basin and the H-1 storm drain, Oahu, Hawai'i","docAbstract":"Storm runoff water-quality samples were collected as part of the State of Hawaii Department of Transportation Stormwater Monitoring Program. The program is designed to assess the effects of highway runoff and urban runoff on Halawa Stream and to assess the effects from the H-1 storm drain on Manoa Stream. For this program, rainfall data were collected at three stations, continuous discharge data at four stations, and water-quality data at six stations, which include the four continuous discharge stations. This report summarizes rainfall, discharge, and water-quality data collected between July 1, 2007, and June 30, 2008. \r\n\r\nA total of 16 environmental samples were collected over two storms during July 1, 2007, to June 30, 2008, within the Halawa Stream drainage area. Samples were analyzed for total suspended solids, total dissolved solids, nutrients, chemical oxygen demand, and selected trace metals (cadmium, chromium, copper, lead, and zinc). Additionally, grab samples were analyzed for oil and grease, total petroleum hydrocarbons, fecal coliform, and biological oxygen demand. Some samples were analyzed for only a partial list of these analytes because an insufficient volume of sample was collected by the automatic samplers. Three additional quality-assurance/quality-control samples were collected concurrently with the storm samples. \r\n\r\nA total of 16 environmental samples were collected over four storms during July 1, 2007, to June 30, 2008 at the H-1 Storm Drain. All samples at this site were collected using an automatic sampler. Samples generally were analyzed for total suspended solids, nutrients, chemical oxygen demand, oil and grease, total petroleum hydrocarbons, and selected trace metals (cadmium, chromium, copper, lead, nickel, and zinc), although some samples were analyzed for only a partial list of these analytes. During the storm of January 29, 2008, 10 discrete samples were collected. Varying constituent concentrations were detected for the samples collected at different times during this storm event. Two quality-assurance/quality-control samples were collected concurrently with the storm samples. Three additional quality-assurance/quality-control samples were collected during routine sampler maintenance to check the effectiveness of equipment-cleaning procedures.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20081233","collaboration":"Prepared in cooperation with the State of Hawaii Department of Transportation","usgsCitation":"Presley, T.K., Jamison, M.T., and Young, S.T., 2008, Rainfall, discharge, and water-quality data during stormwater monitoring, July 1, 2007, to June 30, 2008; Halawa stream drainage basin and the H-1 storm drain, Oahu, Hawai'i (Version 1.0): U.S. Geological Survey Open-File Report 2008-1233, Report: vi, 46 p.; 2 Tables, https://doi.org/10.3133/ofr20081233.","productDescription":"Report: vi, 46 p.; 2 Tables","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"2007-06-01","temporalEnd":"2008-07-31","costCenters":[{"id":525,"text":"Pacific Islands Water Science Center","active":true,"usgs":true}],"links":[{"id":195294,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":402071,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_84308.htm","linkFileType":{"id":5,"text":"html"}},{"id":11734,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2008/1233/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Hawaii","otherGeospatial":"Oahu","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -157.9333,\n 21.3667\n ],\n [\n -157.825,\n 21.3667\n ],\n [\n -157.825,\n 21.4333\n ],\n [\n -157.9333,\n 21.4333\n ],\n [\n -157.9333,\n 21.3667\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a5ee4b07f02db633bc2","contributors":{"authors":[{"text":"Presley, Todd K. 0000-0001-5851-0634 tkpresle@usgs.gov","orcid":"https://orcid.org/0000-0001-5851-0634","contributorId":2671,"corporation":false,"usgs":true,"family":"Presley","given":"Todd","email":"tkpresle@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":297031,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jamison, Marcael T. J.","contributorId":6817,"corporation":false,"usgs":true,"family":"Jamison","given":"Marcael","email":"","middleInitial":"T. J.","affiliations":[],"preferred":false,"id":297032,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Young, Stacie T. M.","contributorId":63432,"corporation":false,"usgs":true,"family":"Young","given":"Stacie","email":"","middleInitial":"T. M.","affiliations":[],"preferred":false,"id":297033,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":86168,"text":"sir20085114 - 2008 - Instrumentation recommendations for volcano monitoring at U.S. volcanoes under the national volcano early warning system","interactions":[],"lastModifiedDate":"2019-03-25T09:56:30","indexId":"sir20085114","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-5114","title":"Instrumentation recommendations for volcano monitoring at U.S. volcanoes under the national volcano early warning system","docAbstract":"As magma moves toward the surface, it interacts with anything in its path: hydrothermal systems, cooling magma bodies from previous eruptions, and (or) the surrounding “country rock.” Magma also undergoes significant changes in its physical properties as pressure and temperature conditions change along its path. These interactions and changes lead to a range of geophysical and geochemical phenomena. The goal of volcano monitoring is to detect and correctly interpret such phenomena in order to provide early and accurate warnings of impending eruptions. Given the well-documented hazards posed by volcanoes to both ground-based populations (for example, Blong, 1984; Scott, 1989) and aviation (for example, Neal and others, 1997; Miller and Casadevall, 2000), volcano monitoring is critical for public safety and hazard mitigation. Only with adequate monitoring systems in place can volcano observatories provide accurate and timely forecasts and alerts of possible eruptive activity.
At most U.S. volcanoes, observatories traditionally have employed a two-component approach to volcano monitoring: (1) install instrumentation sufficient to detect unrest at volcanic systems likely to erupt in the not-too-distant future; and (2) once unrest is detected, install any instrumentation needed for eruption prediction and monitoring. This reactive approach is problematic, however, for two reasons.
1. At many volcanoes, rapid installation of new ground-1. based instruments is difficult or impossible. Factors that complicate rapid response include (a) eruptions that are preceded by short (hours to days) precursory sequences of geophysical and (or) geochemical activity, as occurred at Mount Redoubt (Alaska) in 1989 (24 hours), Anatahan (Mariana Islands) in 2003 (6 hours), and Mount St. Helens (Washington) in 1980 and 2004 (7 and 8 days, respectively); (b) inclement weather conditions, which may prohibit installation of new equipment for days, weeks, or even months, particularly at midlatitude or high-latitude volcanoes; (c) safety factors during unrest, which can limit where new instrumentation can safely be installed (particularly at near-vent sites that can be critical for precursor detection and eruption forecasting); and (d) the remoteness of many U.S. volcanoes (particularly those in the Aleutians and the Marianas Islands), where access is difficult or impossible most of the year. Given these difficulties, it is reasonable to anticipate that ground-based monitoring of eruptions at U.S. volcanoes will likely be performed primarily with instruments installed before unrest begins.
For these two reasons, change from a reactive to a proactive volcano-monitoring strategy is clearly needed at U.S. volcanoes. Monitoring capabilities need to be expanded at virtually every volcanic center, regardless of its current state of unrest, with particular emphases on real-time data transmission and increasing the diversity, quality, and quantity of instrumentation at U.S. volcano observatories. In this report, we present recommendations for the types and numbers of instruments that should be deployed to monitor U.S. volcanoes. These recommendations are the result of discussions among members of a panel of government- and university-based scientists about the status and future directions of volcano monitoring, with discussions framed by the U.S. Geological Survey (USGS)’s National Volcano Early Warning System (NVEWS) initiative (Ewert and others, 2005).
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/sir20085114","usgsCitation":"Moran, S.C., Freymueller, J.T., LaHusen, R.G., McGee, K.A., Poland, M., Power, J.A., Schmidt, D.A., Schneider, D.J., Stephens, G., Werner, C.A., and White, R.A., 2008, Instrumentation recommendations for volcano monitoring at U.S. volcanoes under the national volcano early warning system (Version 1.0): U.S. Geological Survey Scientific Investigations Report 2008-5114, vi, 47 p., https://doi.org/10.3133/sir20085114.","productDescription":"vi, 47 p.","numberOfPages":"56","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":190985,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":362269,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2008/5114/sir2008-5114.pdf","text":"Report","size":"1.4 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":11735,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2008/5114/","text":"Index Page","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4d94","contributors":{"authors":[{"text":"Moran, Seth C. 0000-0001-7308-9649 smoran@usgs.gov","orcid":"https://orcid.org/0000-0001-7308-9649","contributorId":548,"corporation":false,"usgs":true,"family":"Moran","given":"Seth","email":"smoran@usgs.gov","middleInitial":"C.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"preferred":true,"id":297034,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Freymueller, Jeff T.","contributorId":14929,"corporation":false,"usgs":true,"family":"Freymueller","given":"Jeff","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":297041,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"LaHusen, Richard G.","contributorId":60205,"corporation":false,"usgs":true,"family":"LaHusen","given":"Richard","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":297043,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McGee, Kenneth A. kenmcgee@usgs.gov","contributorId":2135,"corporation":false,"usgs":true,"family":"McGee","given":"Kenneth","email":"kenmcgee@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":297038,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":635,"corporation":false,"usgs":true,"family":"Poland","given":"Michael P.","email":"mpoland@usgs.gov","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":297036,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Power, John A. 0000-0002-7233-4398 jpower@usgs.gov","orcid":"https://orcid.org/0000-0002-7233-4398","contributorId":2768,"corporation":false,"usgs":true,"family":"Power","given":"John","email":"jpower@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":297040,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schmidt, David A.","contributorId":51389,"corporation":false,"usgs":true,"family":"Schmidt","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":297042,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Schneider, David J. 0000-0001-9092-1054 djschneider@usgs.gov","orcid":"https://orcid.org/0000-0001-9092-1054","contributorId":633,"corporation":false,"usgs":true,"family":"Schneider","given":"David","email":"djschneider@usgs.gov","middleInitial":"J.","affiliations":[{"id":121,"text":"Alaska Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":297035,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Stephens, George","contributorId":106760,"corporation":false,"usgs":true,"family":"Stephens","given":"George","email":"","affiliations":[],"preferred":false,"id":297044,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Werner, Cynthia A. cwerner@usgs.gov","contributorId":2540,"corporation":false,"usgs":true,"family":"Werner","given":"Cynthia","email":"cwerner@usgs.gov","middleInitial":"A.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":297039,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"White, Randall A. 0000-0003-4074-8577 rwhite@usgs.gov","orcid":"https://orcid.org/0000-0003-4074-8577","contributorId":1993,"corporation":false,"usgs":true,"family":"White","given":"Randall","email":"rwhite@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":297037,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":86171,"text":"sir20085050 - 2008 - Hydrogeology, Chemical Characteristics, and Transport Processes in the Zone of Contribution of a Public-Supply Well in York, Nebraska","interactions":[],"lastModifiedDate":"2012-03-08T17:16:22","indexId":"sir20085050","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-5050","title":"Hydrogeology, Chemical Characteristics, and Transport Processes in the Zone of Contribution of a Public-Supply Well in York, Nebraska","docAbstract":"In 2001, the U.S. Geological Survey, as part of the National Water Quality Assessment (NAWQA) Program, initiated a topical study of Transport of Anthropogenic and Natural Contaminants (TANC) to PSW (public-supply wells). Local-scale and regional-scale TANC study areas were delineated within selected NAWQA study units for intensive study of processes effecting transport of contaminants to PSWs. This report describes results from a local-scale TANC study area at York, Nebraska, within the High Plains aquifer, including the hydrogeology and geochemistry of a 108-square-kilometer study area that contains the zone of contribution to a PSW selected for study (study PSW), and describes factors controlling the transport of selected anthropogenic and natural contaminants to PSWs.\r\n\r\nWithin the local-scale TANC study area, the High Plains aquifer is approximately 75 m (meter) thick, and includes an unconfined aquifer, an upper confining unit, an upper confined aquifer, and a lower confining unit with lower confined sand lenses (units below the upper confining unit are referred to as confined aquifers) in unconsolidated alluvial and glacial deposits overlain by loess and underlain by Cretaceous shale. From northwest to southeast, land use in the local-scale TANC study area changes from predominantly irrigated agricultural land to residential and commercial land in the small community of York (population approximately 8,100). \r\n\r\nFor the purposes of comparing water chemistry, wells were classified by degree of aquifer confinement (unconfined and confined), depth in the unconfined aquifer (shallow and deep), land use (urban and agricultural), and extent of mixing in wells in the confined aquifer with water from the unconfined aquifer (mixed and unmixed). Oxygen (delta 18O) and hydrogen (delta D) stable isotopic values indicated a clear isotopic contrast between shallow wells in the unconfined aquifer (hereinafter, unconfined shallow wells) and most monitoring wells in the confined aquifers (hereinafter, confined unmixed wells). Delta 18O and delta D values for a minority of wells in the confined aquifers were intermediate between those for the unconfined shallow wells and those for the confined unmixed wells. These intermediate values were consistent with mixing of water from unconfined and confined aquifers (hereinafter, confined mixed wells). Oxidation-reduction conditions were primarily oxic in the unconfined aquifer and variably reducing in the confined aquifers. \r\n\r\nTrace amounts of volatile organic compounds (VOC), particularly tetrachloroethylene (PCE) and trichloroethylene (TCE), were widely detected in unconfined shallow urban wells and indicated the presence of young urban recharge waters in most confined mixed wells. The presence of degradation products of agricultural pesticides (acetochlor and alachlor) in some confined mixed wells suggests that some fraction of the water in these wells also was the result of recharge in agricultural areas. In the unconfined aquifer, age-tracer data (chlorofluorocarbon and sulfur hexafluoride data, and tritium to helium-3 ratios) fit a piston-flow model, with apparent recharge ages ranging from 7 to 48 years and generally increasing with depth. Age-tracer data for the confined aquifers were consistent with mixing of 'old' water, not containing modern tracers recharged in the last 60 years, and exponentially-mixed 'young' water with modern tracers. Confined unmixed wells contained less than (<) 3 percent (%) young water mixed with a much larger fraction greater than or equal to (>=) 97% of old water. Confined mixed wells contained >30% young water and mean ages ranged from 12 to 14 years. Median concentrations of nitrate (as nitrogen, hereinafter, nitrate-N) were 17.3 and 16.0 mg/L (milligram per liter) in unconfined shallow urban and agricultural wells, respectively, indicating a range of likely nitrate sources. Septic systems are most numerous near the edge of the urban area and appear to be ","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/sir20085050","collaboration":"Prepared in cooperation with the National Water-Quality Assessment Program, Transport of Anthropogenic and Natural Contaminants (TANC) to Public-Supply Wells","usgsCitation":"Landon, M.K., Clark, B.R., McMahon, P.B., McGuire, V.L., and Turco, M.J., 2008, Hydrogeology, Chemical Characteristics, and Transport Processes in the Zone of Contribution of a Public-Supply Well in York, Nebraska: U.S. Geological Survey Scientific Investigations Report 2008-5050, xii, 149 p., https://doi.org/10.3133/sir20085050.","productDescription":"xii, 149 p.","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":190986,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11738,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2008/5050/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -97.83333333333333,41.75 ], [ -97.83333333333333,42.03333333333333 ], [ -97.46666666666667,42.03333333333333 ], [ -97.46666666666667,41.75 ], [ -97.83333333333333,41.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2de4b07f02db614c18","contributors":{"authors":[{"text":"Landon, Matthew K. 0000-0002-5766-0494 landon@usgs.gov","orcid":"https://orcid.org/0000-0002-5766-0494","contributorId":392,"corporation":false,"usgs":true,"family":"Landon","given":"Matthew","email":"landon@usgs.gov","middleInitial":"K.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":297058,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, Brian R. 0000-0001-6611-3807 brclark@usgs.gov","orcid":"https://orcid.org/0000-0001-6611-3807","contributorId":1502,"corporation":false,"usgs":true,"family":"Clark","given":"Brian","email":"brclark@usgs.gov","middleInitial":"R.","affiliations":[{"id":38131,"text":"WMA - Office of Planning and Programming","active":true,"usgs":true}],"preferred":true,"id":297062,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McMahon, Peter B. 0000-0001-7452-2379 pmcmahon@usgs.gov","orcid":"https://orcid.org/0000-0001-7452-2379","contributorId":724,"corporation":false,"usgs":true,"family":"McMahon","given":"Peter","email":"pmcmahon@usgs.gov","middleInitial":"B.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":297060,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McGuire, Virginia L. 0000-0002-3962-4158 vlmcguir@usgs.gov","orcid":"https://orcid.org/0000-0002-3962-4158","contributorId":404,"corporation":false,"usgs":true,"family":"McGuire","given":"Virginia","email":"vlmcguir@usgs.gov","middleInitial":"L.","affiliations":[{"id":464,"text":"Nebraska Water Science Center","active":true,"usgs":true}],"preferred":true,"id":297059,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Turco, Michael J. mjturco@usgs.gov","contributorId":1011,"corporation":false,"usgs":true,"family":"Turco","given":"Michael","email":"mjturco@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":297061,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":86172,"text":"tm5B6 - 2008 - Interpreting and Reporting Radiological Water-Quality Data","interactions":[],"lastModifiedDate":"2012-02-02T00:14:28","indexId":"tm5B6","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":335,"text":"Techniques and Methods","code":"TM","onlineIssn":"2328-7055","printIssn":"2328-7047","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"5-B6","title":"Interpreting and Reporting Radiological Water-Quality Data","docAbstract":"This document provides information to U.S. Geological Survey (USGS) Water Science Centers on interpreting and reporting radiological results for samples of environmental matrices, most notably water. The information provided is intended to be broadly useful throughout the United States, but it is recommended that scientists who work at sites containing radioactive hazardous wastes need to consult additional sources for more detailed information. The document is largely based on recognized national standards and guidance documents for radioanalytical sample processing, most notably the Multi-Agency Radiological Laboratory Analytical Protocols Manual (MARLAP), and on documents published by the U.S. Environmental Protection Agency and the American National Standards Institute. It does not include discussion of standard USGS practices including field quality-control sample analysis, interpretive report policies, and related issues, all of which shall always be included in any effort by the Water Science Centers. The use of 'shall' in this report signifies a policy requirement of the USGS Office of Water Quality.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Book 5, Laboratory Analysis Section B, Methods of the National Water Quality Laboratory Chapter 6","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/tm5B6","isbn":"9781411322233","collaboration":"Prepared by the U.S. Geological Survey Office of Water Quality, National Water Quality Laboratory","usgsCitation":"McCurdy, D.E., Garbarino, J.R., and Mullin, A.H., 2008, Interpreting and Reporting Radiological Water-Quality Data (Version 1.0): U.S. Geological Survey Techniques and Methods 5-B6, vi, 33 p., https://doi.org/10.3133/tm5B6.","productDescription":"vi, 33 p.","costCenters":[{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true}],"links":[{"id":124578,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/tm_5_b6.gif"},{"id":11740,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/tm/05b06/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49d9e4b07f02db5dfe69","contributors":{"authors":[{"text":"McCurdy, David E.","contributorId":74469,"corporation":false,"usgs":true,"family":"McCurdy","given":"David","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":297065,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Garbarino, John R. jrgarb@usgs.gov","contributorId":2189,"corporation":false,"usgs":true,"family":"Garbarino","given":"John","email":"jrgarb@usgs.gov","middleInitial":"R.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":297064,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mullin, Ann H. ahmullin@usgs.gov","contributorId":2188,"corporation":false,"usgs":true,"family":"Mullin","given":"Ann","email":"ahmullin@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":297063,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":86173,"text":"ds364 - 2008 - Specific conductance in the Colorado River between Glen Canyon Dam and Diamond Creek, Northern Arizona, 1988-2007","interactions":[],"lastModifiedDate":"2021-09-21T11:44:07.454307","indexId":"ds364","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"364","title":"Specific conductance in the Colorado River between Glen Canyon Dam and Diamond Creek, Northern Arizona, 1988-2007","docAbstract":"The construction of Glen Canyon Dam, completed in 1963, resulted in substantial physical and biological changes to downstream Colorado River environments between Lake Powell and Lake Mead - an area almost entirely within Grand Canyon National Park, Ariz. In an effort to understand these changes, data have been collected to assess the condition of a number of downstream resources. In terms of measuring water quality, the collection of specific-conductance data is a cost-effective method for estimating salinity. Data-collection activities were initially undertaken by the Bureau of Reclamation's Glen Canyon Environmental Studies (1982-96); these efforts were subsequently transferred to the U.S. Geological Survey's Grand Canyon Monitoring and Research Center (1996 to the present). This report describes the specific-conductance dataset collected for the Colorado River between Glen Canyon Dam and Diamond Creek from 1988 to 2007. Data-collection and processing methods used during the study period are described, and time-series plots of the data are presented. The report also includes plots showing the relation between specific conductance and total dissolved solids. Examples of the use of specific conductance as a natural tracer of parcels of water are presented. \r\n\r\nAnalysis of the data indicates that short-duration spikes and troughs in specific-conductance values lasting from hours to days are primarily the result of flooding in the Paria and Little Colorado Rivers, Colorado River tributaries below Glen Canyon Dam. Specific conductance also exhibits seasonal variations owing to changes in the position of density layers within the reservoir; these changes are driven by inflow hydrology, meteorological conditions, and background stratification. Longer term trends in Colorado River specific conductance are reflective of climatological conditions in the upper Colorado River Basin. For example, drought conditions generally result in an increase in specific conductance in Lake Powell. Therefore, the average annual specific conductance below Glen Canyon Dam is inversely related to the volume of water in Lake Powell.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ds364","usgsCitation":"Voichick, N., 2008, Specific conductance in the Colorado River between Glen Canyon Dam and Diamond Creek, Northern Arizona, 1988-2007 (Version 1.0): U.S. Geological Survey Data Series 364, iv, 16 p., https://doi.org/10.3133/ds364.","productDescription":"iv, 16 p.","onlineOnly":"Y","temporalStart":"1988-01-01","temporalEnd":"2007-12-31","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":194695,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11741,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/364/","linkFileType":{"id":5,"text":"html"}},{"id":389503,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_84311.htm"}],"country":"United States","state":"Arizona","otherGeospatial":"Colorado River","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.5,35 ], [ -114.5,37.5 ], [ -110.75,37.5 ], [ -110.75,35 ], [ -114.5,35 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4d67","contributors":{"authors":[{"text":"Voichick, Nicholas nvoichick@usgs.gov","contributorId":5015,"corporation":false,"usgs":true,"family":"Voichick","given":"Nicholas","email":"nvoichick@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":297066,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":86156,"text":"ofr20071220 - 2008 - Digital Data for Volcano Hazards from Mount Rainier, Washington, Revised 1998","interactions":[],"lastModifiedDate":"2012-02-10T00:11:48","indexId":"ofr20071220","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1220","title":"Digital Data for Volcano Hazards from Mount Rainier, Washington, Revised 1998","docAbstract":"Mount Rainier at 4393 meters (14,410 feet) is the highest peak in the Cascade Range; a dormant volcano having glacier ice that exceeds that of any other mountain in the conterminous United States. This tremendous mass of rock and ice, in combination with great topographic relief, poses a variety of geologic hazards, both during inevitable future eruptions and during the intervening periods of repose. The volcano's past behavior is the best guide to possible future hazards. The written history (about A.D. 1820) of Mount Rainier includes one or two small eruptions, several small debris avalanches, and many small lahars (debris flows originating on a volcano). In addition, prehistoric deposits record the types, magnitudes, and frequencies of other events, and areas that were affected. Mount Rainier deposits produced since the latest ice age (approximately during the past 10,000 years) are well preserved. Studies of these deposits indicate we should anticipate potential hazards in the future. Some phenomena only occur during eruptions such as tephra falls, pyroclastic flows and surges, ballistic projectiles, and lava flows while others may occur without eruptive activity such as debris avalanches, lahars, and floods. \r\n\r\nThe five geographic information system (GIS) volcano hazard data layers used to produce the Mount Rainier volcano hazard map in USGS Open-File Report 98-428 (Hoblitt and others, 1998) are included in this data set. Case 1, case 2, and case 3 layers were delineated by scientists at the Cascades Volcano Observatory and depict various lahar innundation zones around the mountain. Two additional layers delineate areas that may be affected by post-lahar sedimentation (postlahar layer) and pyroclastic flows (pyroclastic layer).","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20071220","usgsCitation":"Schilling, S., Doelger, S., Hoblitt, R., Walder, J.S., Driedger, C.L., Scott, K.M., Pringle, P.T., and Vallance, J., 2008, Digital Data for Volcano Hazards from Mount Rainier, Washington, Revised 1998 (Version 1.0): U.S. Geological Survey Open-File Report 2007-1220, Available online only, https://doi.org/10.3133/ofr20071220.","productDescription":"Available online only","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":195291,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11721,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1220/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d664","contributors":{"authors":[{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":296979,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doelger, S.","contributorId":14901,"corporation":false,"usgs":true,"family":"Doelger","given":"S.","email":"","affiliations":[],"preferred":false,"id":296976,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hoblitt, R.","contributorId":89536,"corporation":false,"usgs":true,"family":"Hoblitt","given":"R.","affiliations":[],"preferred":false,"id":296981,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Walder, J. S.","contributorId":32561,"corporation":false,"usgs":true,"family":"Walder","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":296977,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Driedger, C. L.","contributorId":101656,"corporation":false,"usgs":true,"family":"Driedger","given":"C.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":296982,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Scott, K. M.","contributorId":8119,"corporation":false,"usgs":true,"family":"Scott","given":"K.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":296975,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pringle, P. T.","contributorId":39806,"corporation":false,"usgs":true,"family":"Pringle","given":"P.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":296978,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Vallance, J.W.","contributorId":45336,"corporation":false,"usgs":true,"family":"Vallance","given":"J.W.","affiliations":[],"preferred":false,"id":296980,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":86155,"text":"ofr20071256 - 2008 - Compilation of Disruptions to Airports by Volcanic Activity (Version 1.0, 1944-2006)","interactions":[],"lastModifiedDate":"2019-02-25T11:25:07","indexId":"ofr20071256","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1256","title":"Compilation of Disruptions to Airports by Volcanic Activity (Version 1.0, 1944-2006)","docAbstract":"Volcanic activity has caused significant hazards to numerous airports worldwide, with local to far-ranging effects on travelers and commerce. To more fully characterize the nature and scope of volcanic hazards to airports, we collected data on incidents of airports throughout the world that have been affected by volcanic activity, beginning in 1944 with the first documented instance of damage to modern aircraft and facilities in Naples, Italy, and extending through 2006. Information was gleaned from various sources, including news outlets, volcanological reports (particularly the Smithsonian Institution's Bulletin of the Global Volcanism Network), and previous publications on the topic. This report presents the full compilation of the data collected. For each incident, information about the affected airport and the volcanic source has been compiled as a record in a Microsoft Access database. The database is incomplete in so far as incidents may not have not been reported or documented, but it does present a good sample from diverse parts of the world. Not included are en-route diversions to avoid airborne ash clouds at cruise altitudes. The database has been converted to a Microsoft Excel spreadsheet. To make the PDF version of table 1 in this open-file report resemble the spreadsheet, order the PDF pages as 12, 17, 22; 13, 18, 23; 14, 19, 24; 15, 20, 25; and 16, 21, 26. Analysis of the database reveals that, at a minimum, 101 airports in 28 countries were impacted on 171 occasions from 1944 through 2006 by eruptions at 46 volcanoes. The number of affected airports (101) probably is better constrained than the number of incidents (171) because recurring disruptions at a given airport may have been lumped together or not reported by news agencies, whereas the initial disruption likely is noticed and reported and thus the airport correctly counted.
","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20071256","usgsCitation":"Guffanti, M., Mayberry, G.C., Casadevall, T.J., and Wunderman, R., 2008, Compilation of Disruptions to Airports by Volcanic Activity (Version 1.0, 1944-2006): U.S. Geological Survey Open-File Report 2007-1256, Report: 26 p.; Table 1 (Excel), https://doi.org/10.3133/ofr20071256.","productDescription":"Report: 26 p.; Table 1 (Excel)","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":190573,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11720,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1256/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ee4b07f02db6aa07a","contributors":{"authors":[{"text":"Guffanti, Marianne","contributorId":68257,"corporation":false,"usgs":true,"family":"Guffanti","given":"Marianne","affiliations":[],"preferred":false,"id":296974,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mayberry, Gari C. gmayberr@usgs.gov","contributorId":2650,"corporation":false,"usgs":true,"family":"Mayberry","given":"Gari","email":"gmayberr@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":296971,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Casadevall, Thomas J. 0000-0002-9447-6864 tcasadevall@usgs.gov","orcid":"https://orcid.org/0000-0002-9447-6864","contributorId":2734,"corporation":false,"usgs":true,"family":"Casadevall","given":"Thomas","email":"tcasadevall@usgs.gov","middleInitial":"J.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":296972,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wunderman, Richard","contributorId":33790,"corporation":false,"usgs":true,"family":"Wunderman","given":"Richard","email":"","affiliations":[],"preferred":false,"id":296973,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":86154,"text":"ofr20081232 - 2008 - Summary of mercury and trace element results in precipitation from the Culpeper, Virginia, Mercury Deposition Network Site (VA-08), 2002-2006","interactions":[],"lastModifiedDate":"2018-07-31T09:50:51","indexId":"ofr20081232","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-1232","title":"Summary of mercury and trace element results in precipitation from the Culpeper, Virginia, Mercury Deposition Network Site (VA-08), 2002-2006","docAbstract":"The VA-08 Mercury Deposition Network (MDN) site, southwest of Culpeper, Virginia, was established in autumn of 2002. This site, along with nearby VA-28 (~31 km west) at Big Meadows in Shenandoah National Park, fills a spatial gap in the Mid-Atlantic region of the MDN network and provides Hg deposition data immediately west of the Washington, D.C., metropolitan area. Results for the Culpeper site from autumn of 2002 to the end of 2006 suggest that the highest mercury (Hg) deposition (up to 5.0 µg/m2 per quarter of the 6.5-12.6 µg/m2 annual Hg deposition) is measured during the second and third quarters of the year (April-September). This is a result of both elevated Hg precipitation concentrations (up to 27 ng/L) and greater precipitation during these months. The data also exhibit a general statistically significant (p<0.05) negative correlation between weekly total precipitation and Hg concentrations, suggesting a dilution effect during larger precipitation events, especially during winter and spring. Comparison of results between the Culpeper and Big Meadows sites indicates that although quarterly Hg deposition was not significantly different (p<0.05) between sites, quarterly volume-averaged Hg precipitation concentrations were statistically larger (p<0.05) and precipitation was significantly lower (p<0.05) at VA-08. Lower Hg concentrations at the VA-28 site relative to VA-08 are likely a result of greater total precipitation and thus additional dilution of Hg in precipitation. Results from concomitant trace elements in precipitation collected from July, 2005, to December, 2006, were used to better identify possible sources of Hg at the Culpeper MDN site. Principal component analysis of the Hg and trace metal data identified 3 primary source categories, each with large loadings of characteristic elements: 1) Ca, Al, Mg, Sr, La, and Ce (crustal sources); 2) V, Na, and Ni (local wintertime heating oil); and 3) Zn, Cd, Mn, and Hg (regional anthropogenic emission sources). HYSPLIT air mass trajectory modeling and enrichment factor calculations are consistent with this interpretation. A preliminary source attribution model suggests that ~51% of the Hg in wet deposition is due to regional anthropogenic sources, while crustal sources and local oil combustion account for 9.5% and <1%, respectively. This calculation implies that the global Hg burden accounts for ~40% of the Hg in wet deposition.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20081232","collaboration":"Prepared in cooperation with George Mason University","usgsCitation":"Engle, M.A., Kolker, A., Mose, D.E., East, J.A., and McCord, J.D., 2008, Summary of mercury and trace element results in precipitation from the Culpeper, Virginia, Mercury Deposition Network Site (VA-08), 2002-2006: U.S. Geological Survey Open-File Report 2008-1232, iii, 31 p., https://doi.org/10.3133/ofr20081232.","productDescription":"iii, 31 p.","onlineOnly":"Y","temporalStart":"2002-01-01","temporalEnd":"2006-12-31","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":190572,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11719,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2008/1232/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Virginia","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db699517","contributors":{"authors":[{"text":"Engle, Mark A. 0000-0001-5258-7374 engle@usgs.gov","orcid":"https://orcid.org/0000-0001-5258-7374","contributorId":584,"corporation":false,"usgs":true,"family":"Engle","given":"Mark","email":"engle@usgs.gov","middleInitial":"A.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":296966,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kolker, Allan 0000-0002-5768-4533 akolker@usgs.gov","orcid":"https://orcid.org/0000-0002-5768-4533","contributorId":643,"corporation":false,"usgs":true,"family":"Kolker","given":"Allan","email":"akolker@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":296967,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mose, Douglas E.","contributorId":100484,"corporation":false,"usgs":true,"family":"Mose","given":"Douglas","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":296970,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"East, Joseph A. 0000-0003-4226-9174 jeast@usgs.gov","orcid":"https://orcid.org/0000-0003-4226-9174","contributorId":2747,"corporation":false,"usgs":true,"family":"East","given":"Joseph","email":"jeast@usgs.gov","middleInitial":"A.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":296968,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McCord, Jamey D. jdmccord@usgs.gov","contributorId":2748,"corporation":false,"usgs":true,"family":"McCord","given":"Jamey","email":"jdmccord@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":true,"id":296969,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":86157,"text":"ofr20071221 - 2008 - Digital data for volcano hazards of the Three Sisters region, Oregon","interactions":[],"lastModifiedDate":"2019-04-03T16:34:45","indexId":"ofr20071221","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2007-1221","title":"Digital data for volcano hazards of the Three Sisters region, Oregon","docAbstract":"Three Sisters is one of three active volcanic centers that lie close to rapidly growing communities and resort areas in Central Oregon. The major composite volcanoes of this area are clustered near the center of the region and include South Sister, Middle Sister, and Broken Top. Additionally, hundreds of mafic volcanoes are scattered throughout the Three Sisters area. These range from small cinder cones to large shield volcanoes like North Sister and Belknap Crater. Hazardous events include landslides from the steep flanks of large volcanoes and floods, which need not be triggered by eruptions, as well as eruption-triggered events such as fallout of tephra (volcanic ash) and lava flows. A proximal hazard zone roughly 20 kilometers (12 miles) in diameter surrounding the Three Sisters and Broken Top could be affected within minutes of the onset of an eruption or large landslide. Distal hazard zones that follow river valleys downstream from the Three Sisters and Broken Top could be inundated by lahars (rapid flows of water-laden rock and mud) generated either by melting of snow and ice during eruptions or by large landslides. Slow-moving lava flows could issue from new mafic volcanoes almost anywhere within the region. Fallout of tephra from eruption clouds can affect areas hundreds of kilometers (miles) downwind, so eruptions at volcanoes elsewhere in the Cascade Range also contribute to volcano hazards in Central Oregon.\r\n\r\nScientists at the Cascades Volcano Observatory created a geographic information system (GIS) data set which depicts proximal and distal lahar hazard zones as well as a regional lava flow hazard zone for Three Sisters (USGS Open-File Report 99-437, Scott and others, 1999). The various distal lahar zones were constructed from LaharZ software using 20, 100, and 500 million cubic meter input flow volumes. Additionally, scientists used the depositional history of past events in the Three Sisters Region as well as experience and judgment derived from the study of volcanoes to help construct the regional hazard zone.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20071221","usgsCitation":"Schilling, S., Doelger, S., Scott, W.E., and Iverson, R., 2008, Digital data for volcano hazards of the Three Sisters region, Oregon (Version 1.0 ): U.S. Geological Survey Open-File Report 2007-1221, Available online only, https://doi.org/10.3133/ofr20071221.","productDescription":"Available online only","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":195399,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11722,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1221/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0 ","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d62b","contributors":{"authors":[{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":296986,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doelger, S.","contributorId":14901,"corporation":false,"usgs":true,"family":"Doelger","given":"S.","email":"","affiliations":[],"preferred":false,"id":296983,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scott, W. E.","contributorId":22773,"corporation":false,"usgs":true,"family":"Scott","given":"W.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":296985,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Iverson, R.M. 0000-0002-7369-3819","orcid":"https://orcid.org/0000-0002-7369-3819","contributorId":16435,"corporation":false,"usgs":true,"family":"Iverson","given":"R.M.","affiliations":[],"preferred":false,"id":296984,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":86152,"text":"ofr20081273 - 2008 - Hydrologic data from the study of acidic contamination in the Miami Wash— Pinal Creek Area, Arizona, water years 1997–2004","interactions":[],"lastModifiedDate":"2021-09-01T19:39:21.877213","indexId":"ofr20081273","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-1273","title":"Hydrologic data from the study of acidic contamination in the Miami Wash— Pinal Creek Area, Arizona, water years 1997–2004","docAbstract":"Since 1984, hydrologic data have been collected as part of a U.S. Geological Survey study of the occurrence and movement of acidic contamination in the aquifer and streams of the Pinal Creek drainage basin near Globe, Arizona. Ground-water data from that study are presented for water years 1997 through 2004 and include location, construction information, site plans, water levels, chemical and physical field measurements, and selected chemical analyses of water samples for 31 project wells. Hydrographs of depth to ground water are also included. Surface-water data for four sites are also presented and include selected chemical analyses of water samples. Monthly precipitation data and long-term precipitation statistics are presented for two sites. Chemical analyses of samples collected from the stream and shallow ground water in the perennial reach of Pinal Creek are also included.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20081273","usgsCitation":"Konieczki, A., Brown, J.G., and Parker, J.T., 2008, Hydrologic data from the study of acidic contamination in the Miami Wash— Pinal Creek Area, Arizona, water years 1997–2004: U.S. Geological Survey Open-File Report 2008-1273, iv, 205 p., https://doi.org/10.3133/ofr20081273.","productDescription":"iv, 205 p.","temporalStart":"1996-10-01","temporalEnd":"2004-09-30","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":388745,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_84282.htm"},{"id":195631,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11717,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2008/1273/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Arizona","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111,33.25 ], [ -111,33.61666666666667 ], [ -110.71666666666667,33.61666666666667 ], [ -110.71666666666667,33.25 ], [ -111,33.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2de4b07f02db6145d5","contributors":{"authors":[{"text":"Konieczki, A.D.","contributorId":28218,"corporation":false,"usgs":true,"family":"Konieczki","given":"A.D.","affiliations":[],"preferred":false,"id":296962,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, J. G.","contributorId":28263,"corporation":false,"usgs":true,"family":"Brown","given":"J.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":296963,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parker, J. T. C.","contributorId":89244,"corporation":false,"usgs":true,"family":"Parker","given":"J.","email":"","middleInitial":"T. C.","affiliations":[],"preferred":false,"id":296964,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":86151,"text":"ofr20081266 - 2008 - Development and Evaluation of a Riparian Buffer Mapping Tool","interactions":[],"lastModifiedDate":"2018-03-13T15:41:56","indexId":"ofr20081266","displayToPublicDate":"2008-09-07T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008-1266","title":"Development and Evaluation of a Riparian Buffer Mapping Tool","docAbstract":"Land use and land cover within riparian areas greatly affect the conditions of adjacent water features. In particular, riparian forests provide many environmental benefits, including nutrient uptake, bank stabilization, steam shading, sediment trapping, aquatic and terrestrial habitat, and stream organic matter. In contrast, residential and commercial development and associated transportation infrastructure increase pollutant and nutrient loading and change the hydrologic characteristics of the landscape, thereby affecting both water quality and habitat. Restoring riparian areas is a popular and cost effective restoration technique to improve and protect water quality. Recognizing this, the Chesapeake Executive Council committed to restoring 10,000 miles of riparian forest buffers throughout the Chesapeake Bay watershed by the year 2010. In 2006, the Chesapeake Executive Council further committed to 'using the best available...tools to identify areas where retention and expansion of forests is most needed to protect water quality'.\r\n\r\nThe Chesapeake Bay watershed encompasses 64,000 square miles, including portions of six States and Washington, D.C. Therefore, the interpretation of remotely sensed imagery provides the only effective technique for comprehensively evaluating riparian forest protection and restoration opportunities throughout the watershed. Although 30-meter-resolution land use and land cover data have proved useful on a regional scale, they have not been equally successful at providing the detail required for local-scale assessment of riparian area characteristics. Use of high-resolution imagery (HRI) provides sufficient detail for local-scale assessments, although at greater cost owing to the cost of the imagery and the skill and time required to process the data.\r\n\r\nTo facilitate the use of HRI for monitoring the extent of riparian forest buffers, the U.S. Forest Service and the U.S. Geological Survey Eastern Geographic Science Center funded the development of a prototype semiautomated image classification tool, RBMapper, that is designed for use by technicians with limited image processing training.\r\n\r\nThis document provides an overview of the RBMapper tool, includes instructions on how to obtain the RBMapper tool and tutorial datasets, and contains a summary evaluation of the tool","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr20081266","usgsCitation":"Milheim, L., and Claggett, P.R., 2008, Development and Evaluation of a Riparian Buffer Mapping Tool: U.S. Geological Survey Open-File Report 2008-1266, iii, 15 p., https://doi.org/10.3133/ofr20081266.","productDescription":"iii, 15 p.","onlineOnly":"Y","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":190539,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11716,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2008/1266/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa7e4b07f02db6672c8","contributors":{"authors":[{"text":"Milheim, Lesley E.","contributorId":100951,"corporation":false,"usgs":true,"family":"Milheim","given":"Lesley E.","affiliations":[],"preferred":false,"id":296961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Claggett, Peter R. 0000-0002-5335-2857 pclaggett@usgs.gov","orcid":"https://orcid.org/0000-0002-5335-2857","contributorId":176287,"corporation":false,"usgs":true,"family":"Claggett","given":"Peter","email":"pclaggett@usgs.gov","middleInitial":"R.","affiliations":[{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true},{"id":24708,"text":"Lower Mississippi-Gulf Water Science Center","active":true,"usgs":true}],"preferred":true,"id":296960,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":86147,"text":"mineral2008 - 2008 - Mineral Commodity Summaries 2008","interactions":[],"lastModifiedDate":"2013-02-04T10:57:50","indexId":"mineral2008","displayToPublicDate":"2008-09-04T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":323,"text":"Mineral Commodity Summaries","code":"MCS","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2008","title":"Mineral Commodity Summaries 2008","docAbstract":"Each chapter of the 2008 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production and resources. The MCS is the earliest comprehensive source of 2007 mineral production data for the world. More than 90 individual minerals and materials are covered by two-page synopses.\n\nNational reserves and reserve base information for most mineral commodities found in this report, including those for the United States, are derived from a variety of sources. The ideal source of such information would be comprehensive evaluations that apply the same criteria to deposits in different geographic areas and report the results by country. In the absence of such evaluations, national reserves and reserve base estimates compiled by countries for selected mineral commodities are a primary source of national reserves and reserve base information. Lacking national assessment information by governments, sources such as academic articles, company reports, common business practice, presentations by company representatives, and trade journal articles, or a combination of these, serve as the basis for national reserves and reserve base information reported in the mineral commodity sections of this publication.\n\nA national estimate may be assembled from the following: historically reported reserves and reserve base information carried for years without alteration because no new information is available; historically reported reserves and reserve base reduced by the amount of historical production; and company reported reserves. International minerals availability studies conducted by the U.S. Bureau of Mines, before 1996, and estimates of identified resources by an international collaborative effort (the International Strategic Minerals Inventory) are the basis for some reserves and reserve base estimates.\n\nThe USGS collects information about the quantity and quality of mineral resources but does not directly measure reserves, and companies or governments do not directly report reserves or reserve base to the USGS.\n\nReassessment of reserves and reserve base is a continuing process and the intensity of this process differs for mineral commodities, countries, and time period.\n\nAbbreviations and units of measure, and definitions of selected terms used in the report, are in Appendix A and Appendix B, respectively. A resource/reserve classification for minerals, based on USGS Circular 831 (published with the U.S. Bureau of Mines) is Appendix C, and a directory of USGS minerals information country specialists and their responsibilities is Appendix D.\n\nThe USGS continually strives to improve the value of its publications to users. Constructive comments and suggestions by readers of the MCS 2008 are welcomed.","language":"ENGLISH","publisher":"U.S. Geological Survey","doi":"10.3133/mineral2008","isbn":"9781411320765","usgsCitation":"Mineral Commodity Summaries 2008; 2008; MINERAL; 2008; U.S. Geological Survey","productDescription":"202 p; 4 Appendixes (6 p.); Individual Commodity Data Sheets; Available Online, Printed, and on CD-ROM","additionalOnlineFiles":"Y","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":195530,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mineral_2008.jpg"},{"id":11712,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://minerals.usgs.gov/minerals/pubs/mcs/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db635765","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":534978,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":86145,"text":"sim2978 - 2008 - Regional Stratigraphy and Petroleum Systems of the Michigan Basin, North America","interactions":[],"lastModifiedDate":"2012-02-10T00:11:42","indexId":"sim2978","displayToPublicDate":"2008-09-03T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":333,"text":"Scientific Investigations Map","code":"SIM","onlineIssn":"2329-132X","printIssn":"2329-1311","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2978","title":"Regional Stratigraphy and Petroleum Systems of the Michigan Basin, North America","docAbstract":"Although more than 100 years of research have gone into deciphering the stratigraphy of the Michigan basin of North America, it remains a challenge to visualize the basin stratigraphy on a regional scale and to describe stratigraphic relations within the basin. Similar difficulties exist for visualizing and describing the regional distribution of petroleum source rocks and reservoir rocks. This publication addresses these difficulties by combining data on Paleozoic and Mesozoic stratigraphy and petroleum geology of the Michigan basin. The areal extent of this structural basin is presented along with data in eight schematic chronostratigraphic sections arranged from north to south, with time denoted in equal increments along the sections. The stratigraphic data are modified from American Association of Petroleum Geologists (AAPG) (1984), Johnson and others (1992), Sanford (1993), and Cross (1998), and the time scale is taken from Harland and others (1990). Informal North American chronostratigraphic terms from AAPG (1984) are shown in parentheses. Stratigraphic sequences as defined by Sloss (1963, 1988) and Wheeler (1963) also are included, as well as the locations of major petroleum source rocks and major petroleum plays. The stratigraphic units are colored according to predominant lithology, in order to emphasize general lithologic patterns and to provide a broad overview of the Michigan basin. For purposes of comparison, schematic depictions of stratigraphy and interpreted events in the Michigan basin and adjacent Appalachian basin are shown. The paper version of this map is available for purchase from the USGS Store.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/sim2978","isbn":"9781411319110","usgsCitation":"Swezey, C., 2008, Regional Stratigraphy and Petroleum Systems of the Michigan Basin, North America: U.S. Geological Survey Scientific Investigations Map 2978, Map Sheet: 51 x 42 inches, https://doi.org/10.3133/sim2978.","productDescription":"Map Sheet: 51 x 42 inches","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":110788,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_84305.htm","linkFileType":{"id":5,"text":"html"},"description":"84305"},{"id":190954,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11730,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sim/2978/","linkFileType":{"id":5,"text":"html"}}],"scale":"1","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -94,35 ], [ -94,48 ], [ -72,48 ], [ -72,35 ], [ -94,35 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adbe4b07f02db685bcf","contributors":{"authors":[{"text":"Swezey, Christopher S.","contributorId":52640,"corporation":false,"usgs":true,"family":"Swezey","given":"Christopher S.","affiliations":[],"preferred":false,"id":296941,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70000158,"text":"70000158 - 2008 - Riparian vegetation dynamics and evapotranspiration in the riparian corridor in the delta of the Colorado River, Mexico","interactions":[],"lastModifiedDate":"2025-12-23T15:36:52.940089","indexId":"70000158","displayToPublicDate":"2008-09-01T23:09:22","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2258,"text":"Journal of Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Riparian vegetation dynamics and evapotranspiration in the riparian corridor in the delta of the Colorado River, Mexico","docAbstract":"Like other great desert rivers, the Colorado River in the United States and Mexico is highly regulated to provide water for human use. No water is officially allotted to support the natural ecosystems in the delta of the river in Mexico. However, precipitation is inherently variable in this watershed, and from 1981–2004, 15% of the mean annual flow of the Lower Colorado River has entered the riparian corridor below the last diversion point for water in Mexico. These flows include flood releases from US dams and much smaller administrative spills released back to the river from irrigators in the US and Mexico. These flows have germinated new cohorts of native cottonwood and willow trees and have established an active aquatic ecosystem in the riparian corridor in Mexico. We used ground and remote-sensing methods to determine the composition and fractional cover of the vegetation in the riparian corridor, its annual water consumption, and the sources of water that support the ecosystem. The study covered the period 2000–2004, a flood year followed by 4 dry years. The riparian corridor occupies 30,000 ha between flood control levees in Mexico. Annual evapotranspiration (ET), estimated by Moderate Resolution Imaging Spectrometer (MODIS) satellite imagery calibrated against moisture flux tower data, was about 1.1 m yr−1 and was fairly constant throughout the study period despite a paucity of surface flows 2001–2004. Total ET averaged 3.4×108 m3 yr−1, about 15% of Colorado River water entering Mexico from the US Surface flows could have played only a small part in supporting these high ET losses. We conclude that the riparian ET is supported mainly by the shallow regional aquifer, derived from agricultural return flows, that approaches the surface in the riparian zone. Nevertheless, surface flows are important in germinating cohorts of native trees, in washing salts from the soil and aquifer, and in providing aquatic habitat, thereby enriching the habitat value of the riparian corridor for birds and other wildlife. Conservation and water management strategies to enhance the delta habitats are discussed in light of the findings.
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The USGS is taking the lead in cooperation with many partners to design and implement a future high-resolution National Lidar Dataset. Initial work is focused on determining viability, developing requirements and specifi cations, establishing what types of information contained in a lidar signal are most important, and identifying key stakeholders and their respective roles. In February 2007, USGS hosted the fi rst National Lidar Initiative Strategy Meeting at USGS Headquarters in Virginia. The presentations and a published summary report from the fi rst meeting can be found on the Center for Lidar Information Coordination and Knowledge (CLICK) Website: http://lidar.cr.usgs.gov. The fi rst meeting demonstrated the public need for consistent lidar data at the national scale. The goals of the second meeting were to further expand on the ideas and information developed in the fi rst meeting, to bring more stakeholders together, to both refi ne and expand on the requirements and capabilities needed, and to discuss an organizational and funding approach for an initiative of this magnitude. The approximately 200 participants represented Federal, State, local, commercial and academic interests. The second meeting included a public solicitation for presentations and posters to better democratize the workshop. All of the oral presentation abstracts that were submitted were accepted, and the 25 poster submissions augmented and expanded upon the oral presentations. The presentations from this second meeting, including audio, can be found on CLICK at http://lidar.cr.usgs.gov/national_lidar_2008.php. Based on the presentations and the discussion sessions, the following points were emphasized throughout the meeting
","language":"English","publisher":"ASPRS","usgsCitation":"Stoker, J.M., Harding, D., and Parrish, J., 2008, The need for a national LIDAR dataset: Photogrammetric Engineering and Remote Sensing, v. 74, no. 9, p. 1066-1068.","productDescription":"3 p.","startPage":"1066","endPage":"1068","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":310496,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":310493,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://info.asprs.org/publications/pers/2008journal/september/"}],"volume":"74","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"562a08f6e4b011227bf1fdf1","contributors":{"authors":[{"text":"Stoker, Jason M. 0000-0003-2455-0931 jstoker@usgs.gov","orcid":"https://orcid.org/0000-0003-2455-0931","contributorId":3021,"corporation":false,"usgs":true,"family":"Stoker","given":"Jason","email":"jstoker@usgs.gov","middleInitial":"M.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":true,"id":578120,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harding, David","contributorId":108018,"corporation":false,"usgs":true,"family":"Harding","given":"David","affiliations":[],"preferred":false,"id":578121,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parrish, Jay","contributorId":64987,"corporation":false,"usgs":true,"family":"Parrish","given":"Jay","email":"","affiliations":[],"preferred":false,"id":578122,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ]}