{"pageNumber":"1008","pageRowStart":"25175","pageSize":"25","recordCount":40818,"records":[{"id":70028730,"text":"70028730 - 2006 - Foreword: Understanding through modeling","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028730","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Foreword: Understanding through modeling","docAbstract":"[No abstract available]","largerWorkTitle":"Ground Water","language":"English","doi":"10.1111/j.1745-6584.2006.00270.x","issn":"0017467X","usgsCitation":"Zheng, C., Poeter, E., Hill, M., and Doherty, J., 2006, Foreword: Understanding through modeling, <i>in</i> Ground Water, v. 44, no. 6, p. 769-770, https://doi.org/10.1111/j.1745-6584.2006.00270.x.","startPage":"769","endPage":"770","numberOfPages":"2","costCenters":[],"links":[{"id":477531,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1745-6584.2006.00270.x","text":"Publisher Index Page"},{"id":209637,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2006.00270.x"},{"id":236300,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"6","noUsgsAuthors":false,"publicationDate":"2006-11-06","publicationStatus":"PW","scienceBaseUri":"505a1342e4b0c8380cd545a4","contributors":{"authors":[{"text":"Zheng, C.","contributorId":39976,"corporation":false,"usgs":true,"family":"Zheng","given":"C.","email":"","affiliations":[],"preferred":false,"id":419500,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poeter, E.","contributorId":48708,"corporation":false,"usgs":true,"family":"Poeter","given":"E.","affiliations":[],"preferred":false,"id":419501,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hill, M.","contributorId":12635,"corporation":false,"usgs":true,"family":"Hill","given":"M.","affiliations":[],"preferred":false,"id":419499,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Doherty, J.","contributorId":98425,"corporation":false,"usgs":true,"family":"Doherty","given":"J.","email":"","affiliations":[],"preferred":false,"id":419502,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028774,"text":"70028774 - 2006 - Regional P wave velocity structure of the Northern Cascadia Subduction Zone","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028774","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Regional P wave velocity structure of the Northern Cascadia Subduction Zone","docAbstract":"This paper presents the first regional three-dimensional, P wave velocity model for the Northern Cascadia Subduction. Zone (SW British Columbia and NW Washington State) constructed through tomographic inversion of first-arrival traveltime data from active source experiments together with earthquake traveltime data recorded at permanent stations. The velocity model images the structure of the subducting Juan de Fuca plate, megathrust, and the fore-arc crust and upper mantle. Beneath southern Vancouver Island the megathrust above the Juan de Fuca plate is characterized by a broad zone (25-35 km depth) having relatively low velocities of 6.4-6.6 km/s. This relative low velocity zone coincides with the location of most of the episodic tremors recently mapped beneath Vancouver Island, and its low velocity may also partially reflect the presence of trapped fluids and sheared lower crustal rocks. The rocks of the Olympic Subduction Complex are inferred to deform aseismically as evidenced by the lack of earthquakes withi the low-velocity rocks. The fore-arc upper mantle beneath the Strait of Georgia and Puget Sound is characterized by velocities of 7.2-7.6 km/s. Such low velocities represent regional serpentinization of the upper fore-arc mantle and provide evidence for slab dewatering and densification. Tertiary sedimentary basins in the Strait of Georgia and Puget Lowland imaged by the velocity model lie above the inferred region of slab dewatering and densification and may therefore partly result from a higher rate of slab sinking. In contrast, sedimentary basins in the Strait of Juan de Fuca lie in a synclinal depression in the Crescent Terrane. The correlation of in-slab earthquake hypocenters M>4 with P wave velocities greater than 7.8 km/s at the hypocenters suggests that they originate near the oceanic Moho of the subducting Juan de Fuca plate. Copyright 2006 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2005JB004108","issn":"01480227","usgsCitation":"Ramachandran, K., Hyndman, R., and Brocher, T., 2006, Regional P wave velocity structure of the Northern Cascadia Subduction Zone: Journal of Geophysical Research B: Solid Earth, v. 111, no. 12, https://doi.org/10.1029/2005JB004108.","costCenters":[],"links":[{"id":477477,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2005jb004108","text":"Publisher Index Page"},{"id":209696,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2005JB004108"},{"id":236375,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"111","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a48ae4b0e8fec6cdbb83","contributors":{"authors":[{"text":"Ramachandran, K.","contributorId":71735,"corporation":false,"usgs":true,"family":"Ramachandran","given":"K.","email":"","affiliations":[],"preferred":false,"id":419698,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hyndman, R.D.","contributorId":45831,"corporation":false,"usgs":true,"family":"Hyndman","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":419696,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brocher, T.M. 0000-0002-9740-839X","orcid":"https://orcid.org/0000-0002-9740-839X","contributorId":69994,"corporation":false,"usgs":true,"family":"Brocher","given":"T.M.","affiliations":[],"preferred":false,"id":419697,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028772,"text":"70028772 - 2006 - <i>M</i> ≥  7.0 earthquake recurrence on the San Andreas fault from a stress renewal model","interactions":[],"lastModifiedDate":"2015-04-20T11:39:43","indexId":"70028772","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"<i>M</i> ≥  7.0 earthquake recurrence on the San Andreas fault from a stress renewal model","docAbstract":"<p>&nbsp;Forecasting <i>M</i> &ge; 7.0 San Andreas fault earthquakes requires an assessment of their expected frequency. I used a three-dimensional finite element model of California to calculate volumetric static stress drops from scenario <i>M</i> &ge; 7.0 earthquakes on three San Andreas fault sections. The ratio of stress drop to tectonic stressing rate derived from geodetic displacements yielded recovery times at points throughout the model volume. Under a renewal model, stress recovery times on ruptured fault planes can be a proxy for earthquake recurrence. I show curves of magnitude versus stress recovery time for three San Andreas fault sections. When stress recovery times were converted to expected <i>M</i> &ge; 7.0 earthquake frequencies, they fit Gutenberg-Richter relationships well matched to observed regional rates of <i>M</i> &le; 6.0 earthquakes. Thus a stress-balanced model permits large earthquake Gutenberg-Richter behavior on an individual fault segment, though it does not require it. Modeled slip magnitudes and their expected frequencies were consistent with those observed at the Wrightwood paleoseismic site if strict time predictability does not apply to the San Andreas fault.</p>","language":"English","publisher":"Wiley","doi":"10.1029/2006JB004415","issn":"01480227","usgsCitation":"Parsons, T.E., 2006, <i>M</i> ≥  7.0 earthquake recurrence on the San Andreas fault from a stress renewal model: Journal of Geophysical Research B: Solid Earth, v. 111, no. 12, https://doi.org/10.1029/2006JB004415.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":477474,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006jb004415","text":"Publisher Index Page"},{"id":236373,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209695,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JB004415"}],"volume":"111","issue":"12","noUsgsAuthors":false,"publicationDate":"2006-12-19","publicationStatus":"PW","scienceBaseUri":"505a4aa5e4b0c8380cd68f1d","contributors":{"authors":[{"text":"Parsons, Thomas E. 0000-0002-0582-4338 tparsons@usgs.gov","orcid":"https://orcid.org/0000-0002-0582-4338","contributorId":2314,"corporation":false,"usgs":true,"family":"Parsons","given":"Thomas","email":"tparsons@usgs.gov","middleInitial":"E.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":419693,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70028401,"text":"70028401 - 2006 - The global abundance and size distribution of lakes, ponds, and impoundments","interactions":[],"lastModifiedDate":"2018-01-30T19:37:53","indexId":"70028401","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2620,"text":"Limnology and Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"The global abundance and size distribution of lakes, ponds, and impoundments","docAbstract":"One of the major impediments to the integration of lentic ecosystems into global environmental analyses has been fragmentary data on the extent and size distribution of lakes, ponds, and impoundments. We use new data sources, enhanced spatial resolution, and new analytical approaches to provide new estimates of the global abundance of surface-water bodies. A global model based on the Pareto distribution shows that the global extent of natural lakes is twice as large as previously known (304 million lakes; 4.2 million km 2 in area) and is dominated in area by millions of water bodies smaller than 1 km2. Similar analyses of impoundments based on inventories of large, engineered dams show that impounded waters cover approximately 0.26 million km2. However, construction of low-tech farm impoundments is estimated to be between 0.1 % and 6% of farm area worldwide, dependent upon precipitation, and represents >77,000 km 2 globally, at present. Overall, about 4.6 million km2 of the earth's continental \"land\" surface (>3%) is covered by water. These analyses underscore the importance of explicitly considering lakes, ponds, and impoundments, especially small ones, in global analyses of rates and processes. ?? 2006, by the American Society of Limnology and Oceanography, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Limnology and Oceanography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.4319/lo.2006.51.5.2388","issn":"00243590","usgsCitation":"Downing, J.A., Prairie, Y., Cole, J.J., Duarte, C., Tranvik, L., Striegl, R.G., McDowell, W.H., Kortelainen, P., Caraco, N., Melack, J., and Middelburg, J.J., 2006, The global abundance and size distribution of lakes, ponds, and impoundments: Limnology and Oceanography, v. 51, no. 5, p. 2388-2397, https://doi.org/10.4319/lo.2006.51.5.2388.","startPage":"2388","endPage":"2397","numberOfPages":"10","costCenters":[],"links":[{"id":237143,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":265989,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.4319/lo.2006.51.5.2388"}],"volume":"51","issue":"5","noUsgsAuthors":false,"publicationDate":"2006-09-14","publicationStatus":"PW","scienceBaseUri":"505bac89e4b08c986b323570","contributors":{"authors":[{"text":"Downing, J. A.","contributorId":100466,"corporation":false,"usgs":true,"family":"Downing","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":417910,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Prairie, Y.T.","contributorId":72191,"corporation":false,"usgs":true,"family":"Prairie","given":"Y.T.","email":"","affiliations":[],"preferred":false,"id":417907,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cole, J. J.","contributorId":25746,"corporation":false,"usgs":false,"family":"Cole","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":417901,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Duarte, C.M.","contributorId":64017,"corporation":false,"usgs":true,"family":"Duarte","given":"C.M.","affiliations":[],"preferred":false,"id":417905,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tranvik, L.J.","contributorId":82912,"corporation":false,"usgs":true,"family":"Tranvik","given":"L.J.","affiliations":[],"preferred":false,"id":417908,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Striegl, Robert G. 0000-0002-8251-4659 rstriegl@usgs.gov","orcid":"https://orcid.org/0000-0002-8251-4659","contributorId":1630,"corporation":false,"usgs":true,"family":"Striegl","given":"Robert","email":"rstriegl@usgs.gov","middleInitial":"G.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":417906,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McDowell, W. H.","contributorId":88532,"corporation":false,"usgs":false,"family":"McDowell","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":417909,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kortelainen, Pirkko","contributorId":43130,"corporation":false,"usgs":true,"family":"Kortelainen","given":"Pirkko","email":"","affiliations":[],"preferred":false,"id":417902,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Caraco, N.F.","contributorId":47150,"corporation":false,"usgs":true,"family":"Caraco","given":"N.F.","email":"","affiliations":[],"preferred":false,"id":417903,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Melack, J.M.","contributorId":59164,"corporation":false,"usgs":true,"family":"Melack","given":"J.M.","affiliations":[],"preferred":false,"id":417904,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Middelburg, J. J.","contributorId":105417,"corporation":false,"usgs":true,"family":"Middelburg","given":"J.","middleInitial":"J.","affiliations":[],"preferred":false,"id":417911,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70028653,"text":"70028653 - 2006 - Research approach to teaching groundwater biodegradation in karst aquifers","interactions":[],"lastModifiedDate":"2012-03-12T17:20:43","indexId":"70028653","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Research approach to teaching groundwater biodegradation in karst aquifers","docAbstract":"TSU in partnership with the USGS has conducted extensive research regarding biode??gradation of contaminants in karst aquifers. This research resulted in the development of a numerical approach to modeling biodegradation of contaminants in karst aquifers that is taught to environmental engineering students in several steps. First, environmental engineering students are taught chemical-reaction engineering principles relating to a wide variety of environmental fate and transport issues. Second, as part of TSU's engineering course curriculum, students use a non-ideal flow laboratory reactor system and run a tracer study to establish residence time distribution (RTD). Next, the students couple that formula to a first-order biodegradation rate and predict the removal of a biodegradable contaminant as a function of residence time. Following this, students are shown data collected from karst bedrock wells that suggest that karst aquifers are analogous to non-ideal flow reactors. The students are challenged to develop rates of biodegradation through lab studies and use their results to predict biodegradaton at an actual contaminated karst site. Field studies are also conducted to determine the accuracy of the students' predictions. This academic approach teaches biodegradation processes, rate-kinetic processes, hydraulic processes and numerical principles. The students are able to experience how chemical engineering principles can be applied to other situations, such as, modeling biodegradation of contaminants in karst aquifers. This paper provides background on the chemical engineering principles and karst issues used in the research-enhanced curriculum. ?? American Society for Engineering Education, 2006.","largerWorkTitle":"ASEE Annual Conference and Exposition, Conference Proceedings","conferenceTitle":"113th Annual ASEE Conference and Exposition, 2006","conferenceDate":"18 June 2006 through 21 June 2006","conferenceLocation":"Chicago, IL","language":"English","usgsCitation":"King, L., Byl, T., and Painter, R., 2006, Research approach to teaching groundwater biodegradation in karst aquifers, <i>in</i> ASEE Annual Conference and Exposition, Conference Proceedings, Chicago, IL, 18 June 2006 through 21 June 2006.","numberOfPages":"12","costCenters":[],"links":[{"id":236779,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa91be4b0c8380cd85c0e","contributors":{"authors":[{"text":"King, L.","contributorId":23744,"corporation":false,"usgs":true,"family":"King","given":"L.","email":"","affiliations":[],"preferred":false,"id":419072,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Byl, T.","contributorId":31967,"corporation":false,"usgs":true,"family":"Byl","given":"T.","email":"","affiliations":[],"preferred":false,"id":419073,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Painter, R.","contributorId":54393,"corporation":false,"usgs":true,"family":"Painter","given":"R.","email":"","affiliations":[],"preferred":false,"id":419074,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028647,"text":"70028647 - 2006 - Body-wave traveltime and amplitude shifts from asymptotic travelling wave coupling","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028647","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"title":"Body-wave traveltime and amplitude shifts from asymptotic travelling wave coupling","docAbstract":"We explore the sensitivity of finite-frequency body-wave traveltimes and amplitudes to perturbations in 3-D seismic velocity structure relative to a spherically symmetric model. Using the approach of coupled travelling wave theory, we consider the effect of a structural perturbation on an isolated portion of the seismogram. By convolving the spectrum of the differential seismogram with the spectrum of a narrow window taper, and using a Taylor's series expansion for wavenumber as a function of frequency on a mode dispersion branch, we derive semi-analytic expressions for the sensitivity kernels. Far-field effects of wave interactions with the free surface or internal discontinuities are implicitly included, as are wave conversions upon scattering. The kernels may be computed rapidly for the purpose of structural inversions. We give examples of traveltime sensitivity kernels for regional wave propagation at 1 Hz. For the direct SV wave in a simple crustal velocity model, they are generally complicated because of interfering waves generated by interactions with the free surface and the Mohorovic??ic?? discontinuity. A large part of the interference effects may be eliminated by restricting the travelling wave basis set to those waves within a certain range of horizontal phase velocity. ?? Journal compilation ?? 2006 RAS.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Journal International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-246X.2006.03095.x","issn":"0956540X","usgsCitation":"Pollitz, F., 2006, Body-wave traveltime and amplitude shifts from asymptotic travelling wave coupling: Geophysical Journal International, v. 167, no. 2, p. 705-736, https://doi.org/10.1111/j.1365-246X.2006.03095.x.","startPage":"705","endPage":"736","numberOfPages":"32","costCenters":[],"links":[{"id":477684,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1365-246x.2006.03095.x","text":"Publisher Index Page"},{"id":209895,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-246X.2006.03095.x"},{"id":236640,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"167","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f1f8e4b0c8380cd4af27","contributors":{"authors":[{"text":"Pollitz, F.","contributorId":66449,"corporation":false,"usgs":true,"family":"Pollitz","given":"F.","affiliations":[],"preferred":false,"id":419009,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70028762,"text":"70028762 - 2006 - Variables influencing the presence of subyearling fall Chinook salmon in shoreline habitats of the Hanford Reach, Columbia River","interactions":[],"lastModifiedDate":"2016-05-23T16:06:57","indexId":"70028762","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Variables influencing the presence of subyearling fall Chinook salmon in shoreline habitats of the Hanford Reach, Columbia River","docAbstract":"<p>Little information currently exists on habitat use by subyearling fall Chinook salmon Oncorhynchus tshawytscha rearing in large, main-stem habitats. We collected habitat use information on subyearlings in the Hanford Reach of the Columbia River during May 1994 and April-May 1995 using point abundance electrofishing. We analyzed measures of physical habitat using logistic regression to predict fish presence and absence in shoreline habitats. The difference between water temperature at the point of sampling and in the main river channel was the most important variable for predicting the presence and absence of subyearlings. Mean water velocities of 45 cm/s or less and habitats with low lateral bank slopes were also associated with a greater likelihood of subyearling presence. Intermediate-sized gravel and cobble substrates were significant predictors of fish presence, but small (&lt;32-mm) and boulder-sized (&gt;256-mm) substrates were not. Our rearing model was accurate at predicting fish presence and absence using jackknifing (80% correct) and classification of observations from an independent data set (76% correct). The habitat requirements of fall Chinook salmon in the Hanford Reach are similar to those reported for juvenile Chinook salmon in smaller systems but are met in functionally different ways in a large river.</p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/M04-161.1","issn":"02755947","usgsCitation":"Tiffan, K., Clark, L., Garland, R., and Rondorf, D., 2006, Variables influencing the presence of subyearling fall Chinook salmon in shoreline habitats of the Hanford Reach, Columbia River: North American Journal of Fisheries Management, v. 26, no. 2, p. 351-360, https://doi.org/10.1577/M04-161.1.","productDescription":"10 p.","startPage":"351","endPage":"360","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":488438,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.osti.gov/biblio/2506806","text":"External Repository"},{"id":236755,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Hanford Reach","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -119.83337402343749,\n              46.640008243515915\n            ],\n            [\n              -119.81689453125,\n              46.61171462536894\n            ],\n            [\n              -119.61639404296874,\n              46.6286925708375\n            ],\n            [\n              -119.49005126953124,\n              46.6965511173143\n            ],\n            [\n              -119.3609619140625,\n              46.511625395437925\n            ],\n            [\n              -119.27581787109374,\n              46.40756396630067\n            ],\n            [\n              -119.26208496093751,\n              46.240651955001695\n            ],\n            [\n              -119.07257080078124,\n              46.164614496897094\n            ],\n            [\n              -119.02862548828125,\n              46.231153027822046\n            ],\n            [\n              -119.22088623046875,\n              46.32417161725694\n            ],\n            [\n              -119.2236328125,\n              46.50217348354072\n            ],\n            [\n              -119.39117431640625,\n              46.68336307047754\n            ],\n            [\n              -119.50103759765625,\n              46.751153008636884\n            ],\n            [\n              -119.68780517578125,\n              46.6795944656402\n            ],\n            [\n              -119.80865478515625,\n              46.65132155014943\n            ],\n            [\n              -119.83337402343749,\n              46.640008243515915\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"26","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-05-01","publicationStatus":"PW","scienceBaseUri":"505bc14be4b08c986b32a4f9","contributors":{"authors":[{"text":"Tiffan, K.F.","contributorId":19327,"corporation":false,"usgs":true,"family":"Tiffan","given":"K.F.","email":"","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":false,"id":419648,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, L.O.","contributorId":85745,"corporation":false,"usgs":true,"family":"Clark","given":"L.O.","email":"","affiliations":[],"preferred":false,"id":419651,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garland, R.D.","contributorId":60806,"corporation":false,"usgs":true,"family":"Garland","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":419649,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rondorf, D.W.","contributorId":80789,"corporation":false,"usgs":true,"family":"Rondorf","given":"D.W.","email":"","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":false,"id":419650,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028344,"text":"70028344 - 2006 - Peak flow responses to landscape disturbances caused by the cataclysmic 1980 eruption of Mount St. Helens, Washington","interactions":[],"lastModifiedDate":"2019-04-08T11:20:00","indexId":"70028344","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Peak flow responses to landscape disturbances caused by the cataclysmic 1980 eruption of Mount St. Helens, Washington","docAbstract":"<p><span>Years of discharge measurements that precede and follow the cataclysmic 1980 eruption of Mount St. Helens, Washington, provide an exceptional opportunity to examine the responses of peak flows to abrupt, widespread, devastating landscape disturbance. Multiple basins surrounding Mount St. Helens (300–1300 km</span><sup>2&nbsp;</sup><span>drainage areas) were variously disturbed by: (1) a debris avalanche that buried 60 km</span><sup>2</sup><span> of valley; (2) a lateral volcanic blast and associated pyroclastic flow that destroyed 550 km</span><sup>2</sup><span> of mature forest and blanketed the landscape with silt-capped lithic tephra; (3) debris flows that reamed riparian corridors and deposited tens to hundreds of centimeters of gravelly sand on valley floors; and (4) a Plinian tephra fall that blanketed areas proximal to the volcano with up to tens of centimeters of pumiceous silt, sand, and gravel. The spatially complex disturbances produced a variety of potentially compensating effects that interacted with and influenced hydrological responses. Changes to water transfer on hillslopes and to flow storage and routing along channels both enhanced and retarded runoff. Rapid post-eruption modifications of hillslope surface textures, adjustments of channel networks, and vegetation recovery, in conjunction with the complex nature of the eruptive impacts and strong seasonal variability in regional climate hindered a consistent or persistent shift in peak discharges. Overall, we detected a short-lived (5–10 yr) increase in the magnitudes of autumn and winter peak flows. In general, peak flows were larger, and moderate to large flows (&gt;</span><i>Q</i><sub>2 yr</sub><span>) were more substantively affected than predicted by early modeling efforts. Proportional increases in the magnitudes of both small and large flows in basins subject to severe channel disturbances, but not in basins subject solely to hillslope disturbances, suggest that eruption-induced modifications to flow efficiency along alluvial channels that have very mobile beds differentially affected flows of various magnitudes and likely played a prominent, and additional, role affecting the nature of the hydrological response.</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/B25914.1","issn":"00167606","usgsCitation":"Major, J.J., and Mark, L.E., 2006, Peak flow responses to landscape disturbances caused by the cataclysmic 1980 eruption of Mount St. Helens, Washington: Geological Society of America Bulletin, v. 118, no. 7-8, p. 938-958, https://doi.org/10.1130/B25914.1.","productDescription":"21 p.","startPage":"938","endPage":"958","numberOfPages":"21","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":236820,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.96173095703125,\n              45.539060482134495\n            ],\n            [\n              -122.96173095703125,\n              46.81133924039194\n            ],\n            [\n              -121.52252197265626,\n              46.81133924039194\n            ],\n            [\n              -121.52252197265626,\n              45.539060482134495\n            ],\n            [\n              -122.96173095703125,\n              45.539060482134495\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"118","issue":"7-8","noUsgsAuthors":false,"publicationDate":"2006-06-30","publicationStatus":"PW","scienceBaseUri":"505a760de4b0c8380cd77ec9","contributors":{"authors":[{"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":417609,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mark, Linda E.","contributorId":177476,"corporation":false,"usgs":true,"family":"Mark","given":"Linda","email":"","middleInitial":"E.","affiliations":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":417610,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70028645,"text":"70028645 - 2006 - The ionospheric impact on GPS performance in southern polar region","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028645","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The ionospheric impact on GPS performance in southern polar region","docAbstract":"The primary objective of this paper is to present the results of the study of the effects of varying ionospheric conditions on the GPS signal tracking in the southern polar region. In the first stage of this study, the data collected by the OSU/USGS team in October-November 2003 within the TAMDEF (Transantarctic Mountains Deformation) network were used together with some IGS Antarctic stations to study the effect of severe ionospheric storms on GPS hardware. Note that TAMDEF is a joint USGS/OSU project with the primary objective of measuring crustal motion in the Transantarctic Mountains of Southern Victoria Land using GPS techniques. This study included ten Antarctic stations equipped with different dual-frequency GPS hardware, and the data were evaluated for two 24-hour periods of severe ionospheric storm (2003/10/29) and moderate ionospheric conditions (minor storm of 2003/11/11). The results of this study were presented at the LAG Assembly in Cairns, Australia (Grejner-Brzezinska et al., 2005). Additional tests, in a more controlled environment, were carried out at the US Antarctic station, McMurdo, between January 10 and February 6, 2006, under varying ionospheric conditions, where several different types of receivers were connected to the same antenna located on the rooftop of the Crary Laboratory (the primary test site). In this scenario, each antenna was subject to identical ionospheric effects during each day of the test, and no spatial decorrelation effects were present, as seen in the previous study, due to the spatial separation of the receivers tested. It should be noted, however, that no moderate or severe ionospheric storms occurred during the experiment, so, unfortunately, this type of conditions was not tested here. The test was repeated with different receivers connected to different antenna types; a total of four 5-day sessions were carried out. The following receiver types were used at the primary site: Trimble 5700, Ashtech Z-Surveyor, JNS Euro-80 and Novatel DL-4, with the following antennas: Trimble Zephyr Geodetic, Ashtech D/M and Ashtech E/M chokering. In addition, data collected by the MCM4 IGS station, MCMD UNAVCO station, and CRAR USGS station, all located within 300 m from the primary test site, were used in the analyses. These stations were equipped with the following receiver/antenna combinations: ADA SNR-12/AOAD/MJT chokering (MCM4), Trimble NETRS/AOAD/MJT chokering (MCMD), and TPS ODYSEY_E/JPSREGANT_DD_E (CRAR). The UNAVCO TEQC software was used to carry out the analyses. Depending on the data sampling rate and the mask angle, the expected numbers of observations per receiver/satellite were compared to the actual number of measurements collected during the ionospheric events, with a special emphasis on L2 data. A total number of cycle slips and losses of lock were computed and compared among the hardware types. The results presented here indicate that there is no significant effects on the GPS receivers during minor ionospheric storms (Kp<5). However, the results reported in ibid, indicate significant differences in the hardware performance under severe ionospheric storms. Thus, careful hardware selection is needed to assure data quality/continuity when observations may be affected by severe ionospheric disturbances, while under calm to minor ionospheric activity level there is no significant difference in performance among the hardware tested here.","largerWorkTitle":"Proceedings of the Institute of Navigation - 19th International Technical Meeting of the Satellite Division, ION GNSS 2006","conferenceTitle":"Institute of Navigation - 19th International Technical Meeting of the Satellite Division, ION GNSS 2006","conferenceDate":"26 September 2006 through 29 September 2006","conferenceLocation":"Fort Worth, TX","language":"English","usgsCitation":"Hong, C., Grejner-Brzezinska, D.A., Arslan, N., Willis, M., and Hothem, L., 2006, The ionospheric impact on GPS performance in southern polar region, <i>in</i> Proceedings of the Institute of Navigation - 19th International Technical Meeting of the Satellite Division, ION GNSS 2006, v. 3, Fort Worth, TX, 26 September 2006 through 29 September 2006, p. 1418-1426.","startPage":"1418","endPage":"1426","numberOfPages":"9","costCenters":[],"links":[{"id":236605,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bad64e4b08c986b323bab","contributors":{"authors":[{"text":"Hong, C.-K.","contributorId":90526,"corporation":false,"usgs":true,"family":"Hong","given":"C.-K.","email":"","affiliations":[],"preferred":false,"id":419004,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grejner-Brzezinska, D. A.","contributorId":42772,"corporation":false,"usgs":true,"family":"Grejner-Brzezinska","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":419001,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arslan, N.","contributorId":86557,"corporation":false,"usgs":true,"family":"Arslan","given":"N.","email":"","affiliations":[],"preferred":false,"id":419003,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Willis, M.","contributorId":82910,"corporation":false,"usgs":true,"family":"Willis","given":"M.","email":"","affiliations":[],"preferred":false,"id":419002,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hothem, L.","contributorId":13801,"corporation":false,"usgs":true,"family":"Hothem","given":"L.","email":"","affiliations":[],"preferred":false,"id":419000,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70028690,"text":"70028690 - 2006 - Quantifying the uncertainty in site amplification modeling and its effects on site-specific seismic-hazard estimation in the upper Mississippi embayment and adjacent areas","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028690","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Quantifying the uncertainty in site amplification modeling and its effects on site-specific seismic-hazard estimation in the upper Mississippi embayment and adjacent areas","docAbstract":"The Mississippi embayment, located in the central United States, and its thick deposits of sediments (over 1 km in places) have a large effect on earthquake ground motions. Several previous studies have addressed how these thick sediments might modify probabilistic seismic-hazard maps. The high seismic hazard associated with the New Madrid seismic zone makes it particularly important to quantify the uncertainty in modeling site amplification to better represent earthquake hazard in seismic-hazard maps. The methodology of the Memphis urban seismic-hazard-mapping project (Cramer et al., 2004) is combined with the reference profile approach of Toro and Silva (2001) to better estimate seismic hazard in the Mississippi embayment. Improvements over previous approaches include using the 2002 national seismic-hazard model, fully probabilistic hazard calculations, calibration of site amplification with improved nonlinear soil-response estimates, and estimates of uncertainty. Comparisons are made with the results of several previous studies, and estimates of uncertainty inherent in site-amplification modeling for the upper Mississippi embayment are developed. I present new seismic-hazard maps for the upper Mississippi embayment with the effects of site geology incorporating these uncertainties.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120060037","issn":"00371106","usgsCitation":"Cramer, C., 2006, Quantifying the uncertainty in site amplification modeling and its effects on site-specific seismic-hazard estimation in the upper Mississippi embayment and adjacent areas: Bulletin of the Seismological Society of America, v. 96, no. 6, p. 2008-2020, https://doi.org/10.1785/0120060037.","startPage":"2008","endPage":"2020","numberOfPages":"13","costCenters":[],"links":[{"id":209604,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120060037"},{"id":236258,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a91eee4b0c8380cd8054d","contributors":{"authors":[{"text":"Cramer, C.H.","contributorId":100012,"corporation":false,"usgs":true,"family":"Cramer","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":419284,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70028804,"text":"70028804 - 2006 - Three-dimensional compressional wavespeed model, earthquake relocations, and focal mechanisms for the Parkfield, California, region","interactions":[],"lastModifiedDate":"2012-03-12T17:20:58","indexId":"70028804","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Three-dimensional compressional wavespeed model, earthquake relocations, and focal mechanisms for the Parkfield, California, region","docAbstract":"We present a new three-dimensional (3D) compressional vvavespeed (V p) model for the Parkfield region, taking advantage of the recent seismicity associated with the 2003 San Simeon and 2004 Parkfield earthquake sequences to provide increased model resolution compared to the work of Eberhart-Phillips and Michael (1993) (EPM93). Taking the EPM93 3D model as our starting model, we invert the arrival-time data from about 2100 earthquakes and 250 shots recorded on both permanent network and temporary stations in a region 130 km northeast-southwest by 120 km northwest-southeast. We include catalog picks and cross-correlation and catalog differential times in the inversion, using the double-difference tomography method of Zhang and Thurber (2003). The principal Vp features reported by EPM93 and Michelini and McEvilly (1991) are recovered, but with locally improved resolution along the San Andreas Fault (SAF) and near the active-source profiles. We image the previously identified strong wavespeed contrast (faster on the southwest side) across most of the length of the SAF, and we also improve the image of a high Vp body on the northeast side of the fault reported by EPM93. This narrow body is at about 5- to 12-km depth and extends approximately from the locked section of the SAP to the town of Parkfield. The footwall of the thrust fault responsible for the 1983 Coalinga earthquake is imaged as a northeast-dipping high wavespeed body. In between, relatively low wavespeeds (<5 km/sec) extend to as much as 10-km depth. We use this model to derive absolute locations for about 16,000 earthquakes from 1966 to 2005 and high-precision double-difference locations for 9,000 earthquakes from 1984 to 2005, and also to determine focal mechanisms for 446 earthquakes. These earthquake locations and mechanisms show that the seismogenic fault is a simple planar structure. The aftershock sequence of the 2004 mainshock concentrates into the same structures defined by the pre-2004 seismicity, confirming earlier observations (Waldhauser et al., 2004) that the seismicity pattern at Parkfield is long lived and persists through multiple cycles of mainshocks.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120050825","issn":"00371106","usgsCitation":"Thurber, C., Zhang, H., Waldhauser, F., Hardebeck, J., Michael, A., and Eberhart-Phillips, D., 2006, Three-dimensional compressional wavespeed model, earthquake relocations, and focal mechanisms for the Parkfield, California, region: Bulletin of the Seismological Society of America, v. 96, no. 4 B, https://doi.org/10.1785/0120050825.","costCenters":[],"links":[{"id":209610,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120050825"},{"id":236264,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"4 B","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb323e4b08c986b325bd7","contributors":{"authors":[{"text":"Thurber, C.","contributorId":107046,"corporation":false,"usgs":true,"family":"Thurber","given":"C.","email":"","affiliations":[],"preferred":false,"id":419816,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zhang, H.","contributorId":50311,"corporation":false,"usgs":true,"family":"Zhang","given":"H.","affiliations":[],"preferred":false,"id":419812,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Waldhauser, F.","contributorId":31897,"corporation":false,"usgs":true,"family":"Waldhauser","given":"F.","affiliations":[],"preferred":false,"id":419811,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hardebeck, J.","contributorId":99738,"corporation":false,"usgs":true,"family":"Hardebeck","given":"J.","email":"","affiliations":[],"preferred":false,"id":419815,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Michael, A.","contributorId":56817,"corporation":false,"usgs":true,"family":"Michael","given":"A.","affiliations":[],"preferred":false,"id":419813,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Eberhart-Phillips, D.","contributorId":80428,"corporation":false,"usgs":true,"family":"Eberhart-Phillips","given":"D.","affiliations":[],"preferred":false,"id":419814,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70028851,"text":"70028851 - 2006 - Spatial correlation of shear-wave velocity within San Francisco Bay Sediments","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028851","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Spatial correlation of shear-wave velocity within San Francisco Bay Sediments","docAbstract":"Sediment properties are spatially variable at all scales, and this variability at smaller scales influences high frequency ground motions. We show that surface shear-wave velocity is highly correlated within San Francisco Bay Area sediments using shear-wave velocity measurements from 210 seismic cone penetration tests. We use this correlation to estimate the surface sediment velocity structure using geostatistics. We find that the variance of the estimated shear-wave velocity is reduced using ordinary kriging, and that including this velocity structure in 2D ground motion simulations of a moderate sized earthquake improves the accuracy of the synthetics. Copyright ASCE 2006.","largerWorkTitle":"GeoCongress 2006: Geotechnical Engineering in the Information Technology Age","conferenceTitle":"GeoCongress 2006","conferenceDate":"26 February 2006 through 1 March 2006","conferenceLocation":"Atlanta, GA","language":"English","doi":"10.1061/40803(187)134","isbn":"0784408033; 9780784408032","usgsCitation":"Thompson, E., Baise, L., and Kayen, R.E., 2006, Spatial correlation of shear-wave velocity within San Francisco Bay Sediments, <i>in</i> GeoCongress 2006: Geotechnical Engineering in the Information Technology Age, v. 2006, Atlanta, GA, 26 February 2006 through 1 March 2006, https://doi.org/10.1061/40803(187)134.","startPage":"134","costCenters":[],"links":[{"id":209718,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/40803(187)134"},{"id":236410,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2006","noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"505b9460e4b08c986b31aa47","contributors":{"authors":[{"text":"Thompson, E.M.","contributorId":104688,"corporation":false,"usgs":true,"family":"Thompson","given":"E.M.","affiliations":[],"preferred":false,"id":420015,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baise, L.G.","contributorId":6239,"corporation":false,"usgs":true,"family":"Baise","given":"L.G.","affiliations":[],"preferred":false,"id":420013,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kayen, R. E.","contributorId":14424,"corporation":false,"usgs":true,"family":"Kayen","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":420014,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028365,"text":"70028365 - 2006 - Relationship between shrubs and foods in mountain plover habitat in Park County, Colorado","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028365","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3451,"text":"Southwestern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Relationship between shrubs and foods in mountain plover habitat in Park County, Colorado","docAbstract":"We explored habitat use in terms of vegetation structure and potential forage availability for mountain plovers (Charadrius montanus) in Park County, Colorado. We quantified the percentage cover of bare ground, percentage cover of shrubs (Chrysothamnus visadiflorus), linear distance to nearest shrub, arthropod biomass, and grasshopper density for 102 plots of 1,963 m2, 51 of which were occupied by plovers and 51 of which were selected randomly within previously-classified potential habitat. We modeled the probability of habitat use by plovers based on these measurements. We further subdivided the occupied plots to model probability of habitat use by adults with broods as compared with use by pre-nesting and post-nesting adults. Percentage of bare ground and probability of habitat use for adults with broods were related inversely, but not so for adults without broods. Grasshopper density was positively related to probability of habitat use by adults without broods, whereas proximity to nearest shrub was negatively related. We propose that habitat use by plovers in South Park is influenced by the amount of available shrub-grassland edge habitat and the availability of forage.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Southwestern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1894/0038-4909(2006)51[197:RBSAFI]2.0.CO;2","issn":"00384909","usgsCitation":"Schneider, S., Wunder, M., and Knopf, F., 2006, Relationship between shrubs and foods in mountain plover habitat in Park County, Colorado: Southwestern Naturalist, v. 51, no. 2, p. 197-202, https://doi.org/10.1894/0038-4909(2006)51[197:RBSAFI]2.0.CO;2.","startPage":"197","endPage":"202","numberOfPages":"6","costCenters":[],"links":[{"id":210271,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1894/0038-4909(2006)51[197:RBSAFI]2.0.CO;2"},{"id":237140,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a75ee4b0e8fec6cdc41d","contributors":{"authors":[{"text":"Schneider, S.C.","contributorId":92126,"corporation":false,"usgs":true,"family":"Schneider","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":417753,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wunder, Michael B.","contributorId":65406,"corporation":false,"usgs":false,"family":"Wunder","given":"Michael B.","affiliations":[{"id":6674,"text":"Department of Integrative Biology, University of Colorado Denver","active":true,"usgs":false}],"preferred":false,"id":417752,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Knopf, F.L.","contributorId":26998,"corporation":false,"usgs":true,"family":"Knopf","given":"F.L.","email":"","affiliations":[],"preferred":false,"id":417751,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028640,"text":"70028640 - 2006 - New ghost-node method for linking different models with varied grid refinement","interactions":[],"lastModifiedDate":"2012-03-12T17:21:00","indexId":"70028640","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"New ghost-node method for linking different models with varied grid refinement","docAbstract":"A flexible, robust method for linking grids of locally refined ground-water flow models constructed with different numerical methods is needed to address a variety of hydrologic problems. This work outlines and tests a new ghost-node model-linking method for a refined \"child\" model that is contained within a larger and coarser \"parent\" model that is based on the iterative method of Steffen W. Mehl and Mary C. Hill (2002, Advances in Water Res., 25, p. 497-511; 2004, Advances in Water Res., 27, p. 899-912). The method is applicable to steady-state solutions for ground-water flow. Tests are presented for a homogeneous two-dimensional system that has matching grids (parent cells border an integer number of child cells) or nonmatching grids. The coupled grids are simulated by using the finite-difference and finite-element models MODFLOW and FEHM, respectively. The simulations require no alteration of the MODFLOW or FEHM models and are executed using a batch file on Windows operating systems. Results indicate that when the grids are matched spatially so that nodes and child-cell boundaries are aligned, the new coupling technique has error nearly equal to that when coupling two MODFLOW models. When the grids are nonmatching, model accuracy is slightly increased compared to that for matching-grid cases. Overall, results indicate that the ghost-node technique is a viable means to couple distinct models because the overall head and flow errors relative to the analytical solution are less than if only the regional coarse-grid model was used to simulate flow in the child model's domain.","largerWorkTitle":"Proceedings of the 11th International High Level Radioactive Waste Management Conference, IHLRWM","conferenceTitle":"11th International High Level Radioactive Waste Management Conference","conferenceDate":"30 April 2006 through 4 May 2006","conferenceLocation":"Las Vegas, NV","language":"English","isbn":"0894486918; 9780894486913","usgsCitation":"James, S., Dickinson, J., Mehl, S., Hill, M.C., Leake, S.A., Zyvoloski, G., and Eddebbarh, A., 2006, New ghost-node method for linking different models with varied grid refinement, <i>in</i> Proceedings of the 11th International High Level Radioactive Waste Management Conference, IHLRWM, v. 2006, Las Vegas, NV, 30 April 2006 through 4 May 2006, p. 338-344.","startPage":"338","endPage":"344","numberOfPages":"7","costCenters":[],"links":[{"id":236506,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2006","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a658be4b0c8380cd72c10","contributors":{"authors":[{"text":"James, S.C.","contributorId":103059,"corporation":false,"usgs":true,"family":"James","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":418977,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dickinson, J.E.","contributorId":28790,"corporation":false,"usgs":true,"family":"Dickinson","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":418972,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mehl, S.W.","contributorId":84555,"corporation":false,"usgs":true,"family":"Mehl","given":"S.W.","affiliations":[],"preferred":false,"id":418975,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hill, M. C.","contributorId":48993,"corporation":false,"usgs":true,"family":"Hill","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":418973,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Leake, S. A.","contributorId":52164,"corporation":false,"usgs":true,"family":"Leake","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":418974,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zyvoloski, G.A.","contributorId":20123,"corporation":false,"usgs":true,"family":"Zyvoloski","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":418971,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Eddebbarh, A.-A.","contributorId":101425,"corporation":false,"usgs":true,"family":"Eddebbarh","given":"A.-A.","email":"","affiliations":[],"preferred":false,"id":418976,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70028503,"text":"70028503 - 2006 - Decay of aftershock density with distance indicates triggering by dynamic stress","interactions":[],"lastModifiedDate":"2012-03-12T17:20:58","indexId":"70028503","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Decay of aftershock density with distance indicates triggering by dynamic stress","docAbstract":"The majority of earthquakes are aftershocks, yet aftershock physics is not well understood. Many studies suggest that static stress changes trigger aftershocks, but recent work suggests that shaking (dynamic stresses) may also play a role. Here we measure the decay of aftershocks as a function of distance from magnitude 2-6 mainshocks in order to clarify the aftershock triggering process. We find that for short times after the mainshock, when low background seismicity rates allow for good aftershock detection, the decay is well fitted by a single inverse power law over distances of 0.2-50 km. The consistency of the trend indicates that the same triggering mechanism is working over the entire range. As static stress changes at the more distant aftershocks are negligible, this suggests that dynamic stresses may be triggering all of these aftershocks. We infer that the observed aftershock density is consistent with the probability of triggering aftershocks being nearly proportional to seismic wave amplitude. The data are not fitted well by models that combine static stress change with the evolution of frictionally locked faults. ?? 2006 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/nature04799","issn":"00280836","usgsCitation":"Felzer, K., and Brodsky, E.E., 2006, Decay of aftershock density with distance indicates triggering by dynamic stress: Nature, v. 441, no. 7094, p. 735-738, https://doi.org/10.1038/nature04799.","startPage":"735","endPage":"738","numberOfPages":"4","costCenters":[],"links":[{"id":477688,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://escholarship.org/uc/item/8jb300ff","text":"External Repository"},{"id":209786,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/nature04799"},{"id":236496,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"441","issue":"7094","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe02e4b0c8380cd4ea7c","contributors":{"authors":[{"text":"Felzer, K.R.","contributorId":47562,"corporation":false,"usgs":true,"family":"Felzer","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":418351,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brodsky, E. E.","contributorId":108285,"corporation":false,"usgs":true,"family":"Brodsky","given":"E.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":418352,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70180908,"text":"70180908 - 2006 - Evaluating habitat for black-footed ferrets: Revision of an existing model","interactions":[],"lastModifiedDate":"2017-02-07T14:00:59","indexId":"70180908","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Evaluating habitat for black-footed ferrets: Revision of an existing model","docAbstract":"<p>Black-footed ferrets (Mustela nigripes) are highly dependent on prairie dogs (Cynomys spp.) as prey, and prairie dog colonies are the only known habitats that sustain black-footed ferret populations. An existing model used extensively for evaluating black-footed ferret reintroduction habitat defined complexes by interconnecting colonies with 7-km line segments. Although the 7-km complex remains a useful construct, we propose additional, smaller-scale evaluations that consider 1.5-km subcomplexes. The original model estimated the carrying capacity of complexes based on energy requirements of ferrets and density estimates of their prairie dog prey. Recent data have supported earlier contentions of intraspecific competition and intrasexual territorial behavior in ferrets. We suggest a revised model that retains the fixed linear relationship of the existing model when prairie dog densities are &lt;18/ha and uses a curvilinear relationship that reflects increasing effects of ferret territoriality when there are 18–42 prairie dogs per hectare. We discuss possible effects of colony size and shape, interacting with territoriality, as justification for the exclusion of territorial influences if a prairie dog colony supports only a single female ferret. We also present data to support continued use of active prairie dog burrow densities as indices suitable for broad-scale estimates of prairie dog density. Calculation of percent of complexes that are occupied by prairie dog colonies was recommended as part of the original habitat evaluation process. That attribute has been largely ignored, resulting in rating anomalies.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Recovery of the black-footed ferret: Progress and continuing challenges- Proceedings of the Symposium on the Status of the Black-footed Ferret and Its Habitat, Fort Collins, Colorado, January 28-29, 2004 (Scientific Investigations Report 2005-5293)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"conferenceTitle":"Symposium on the Status of the Black-footed Ferret and Its Habitat","conferenceDate":"January 28-29, 2004","conferenceLocation":"Fort Collins, CO","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Biggins, D.E., Lockhart, J.M., and Godbey, J.L., 2006, Evaluating habitat for black-footed ferrets: Revision of an existing model, <i>in</i> Recovery of the black-footed ferret: Progress and continuing challenges- Proceedings of the Symposium on the Status of the Black-footed Ferret and Its Habitat, Fort Collins, Colorado, January 28-29, 2004 (Scientific Investigations Report 2005-5293), Fort Collins, CO, January 28-29, 2004, p. 143-150.","productDescription":"8 p.","startPage":"143","endPage":"150","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":334893,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334892,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2005/5293/report.pdf#page=154","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"589aeab3e4b0efcedb72d25d","contributors":{"authors":[{"text":"Biggins, Dean E. 0000-0003-2078-671X bigginsd@usgs.gov","orcid":"https://orcid.org/0000-0003-2078-671X","contributorId":2522,"corporation":false,"usgs":true,"family":"Biggins","given":"Dean","email":"bigginsd@usgs.gov","middleInitial":"E.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":662781,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lockhart, J. Michael","contributorId":179117,"corporation":false,"usgs":false,"family":"Lockhart","given":"J.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":662782,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Godbey, Jerry L. godbeyj@usgs.gov","contributorId":5121,"corporation":false,"usgs":true,"family":"Godbey","given":"Jerry","email":"godbeyj@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":662783,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70180910,"text":"70180910 - 2006 - Modeling black-footed ferret energetics: Are southern release sites better?","interactions":[],"lastModifiedDate":"2017-02-07T14:15:40","indexId":"70180910","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Modeling black-footed ferret energetics: Are southern release sites better?","docAbstract":"<p>Several models have been developed to estimate prey requirements and to assess habitat suitability of release sites for the black-footed ferret (Mustela nigripes) (e.g., Stromberg and others, 1983; Powell and others, 1985; Biggins and others, 1993). None of these models, however, addressed possible differences in energetic requirements between sites due to climatic differences within the ferret’s historical range. We used a simplified energetics model to examine the effect of variation in environmental conditions on ferret energetic requirements. The aim of the study was to determine whether the ferret might be more successful in one area than another.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Recovery of the black-footed ferret: Progress and continuing challenges- Proceedings of the Symposium on the Status of the Black-footed Ferret and Its Habitat, Fort Collins, Colorado, January 28-29, 2004 (Scientific Investigations Report 2005-5293)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"conferenceTitle":"Symposium on the Status of the Black-footed Ferret and Its Habitat","conferenceDate":"January 28-29, 2004","conferenceLocation":"Fort Collins, CO","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Harrington, L.A., Biggins, D.E., and Alldredge, A.W., 2006, Modeling black-footed ferret energetics: Are southern release sites better?, <i>in</i> Recovery of the black-footed ferret: Progress and continuing challenges- Proceedings of the Symposium on the Status of the Black-footed Ferret and Its Habitat, Fort Collins, Colorado, January 28-29, 2004 (Scientific Investigations Report 2005-5293), Fort Collins, CO, January 28-29, 2004, p. 286-288.","productDescription":"3 p.","startPage":"286","endPage":"288","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":334897,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334896,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2005/5293/report.pdf#page=297","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"589aeab3e4b0efcedb72d259","contributors":{"authors":[{"text":"Harrington, Lauren A.","contributorId":179118,"corporation":false,"usgs":false,"family":"Harrington","given":"Lauren","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":662788,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Biggins, Dean E. 0000-0003-2078-671X bigginsd@usgs.gov","orcid":"https://orcid.org/0000-0003-2078-671X","contributorId":2522,"corporation":false,"usgs":true,"family":"Biggins","given":"Dean","email":"bigginsd@usgs.gov","middleInitial":"E.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":662789,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alldredge, A. William","contributorId":179119,"corporation":false,"usgs":false,"family":"Alldredge","given":"A.","email":"","middleInitial":"William","affiliations":[],"preferred":false,"id":662790,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028691,"text":"70028691 - 2006 - MMI attenuation and historical earthquakes in the basin and range province of western North America","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028691","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"MMI attenuation and historical earthquakes in the basin and range province of western North America","docAbstract":"Earthquakes in central Nevada (1932-1959) were used to develop a modified Mercalli intensity (MMI) attenuation model for estimating moment magnitude M for earthquakes in the Basin and Range province of interior western North America. M is 7.4-7.5 for the 26 March 1872 Owens Valley, California, earthquake, in agreement with Beanland and Clark's (1994) M 7.6 that was estimated from geologic field observations. M is 7.5 for the 3 May 1887 Sonora, Mexico, earthquake, in agreement with Natali and Sbar's (1982) M 7.4 and Suter's (2006) M 7.5, both estimated from geologic field observations. MMI at sites in California for earthquakes in the Nevada Basin and Range apparently are not much affected by the Sierra Nevada except at sites near the Sierra Nevada where MMI is reduced. This reduction in MMI is consistent with a shadow zone produced by the root of the Sierra Nevada. In contrast, MMI assignments for earthquakes located in the eastern Sierra Nevada near the west margin of the Basin and Range are greater than predicted at sites in California. These higher MMI values may result from critical reflections due to layering near the base of the Sierra Nevada.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120060045","issn":"00371106","usgsCitation":"Bakun, W.H., 2006, MMI attenuation and historical earthquakes in the basin and range province of western North America: Bulletin of the Seismological Society of America, v. 96, no. 6, p. 2206-2220, https://doi.org/10.1785/0120060045.","startPage":"2206","endPage":"2220","numberOfPages":"15","costCenters":[],"links":[{"id":209605,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120060045"},{"id":236259,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4ad0e4b0c8380cd69085","contributors":{"authors":[{"text":"Bakun, W. H.","contributorId":67055,"corporation":false,"usgs":true,"family":"Bakun","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":419285,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70028286,"text":"70028286 - 2006 - Mussel dynamics model: A hydroinformatics tool for analyzing the effects of different stressors on the dynamics of freshwater mussel communities","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028286","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"Mussel dynamics model: A hydroinformatics tool for analyzing the effects of different stressors on the dynamics of freshwater mussel communities","docAbstract":"A model for simulating freshwater mussel population dynamics is presented. The model is a hydroinformatics tool that integrates principles from ecology, river hydraulics, fluid mechanics and sediment transport, and applies the individual-based modelling approach for simulating population dynamics. The general model layout, data requirements, and steps of the simulation process are discussed. As an illustration, simulation results from an application in a 10 km reach of the Upper Mississippi River are presented. The model was used to investigate the spatial distribution of mussels and the effects of food competition in native unionid mussel communities, and communities infested by Dreissena polymorpha, the zebra mussel. Simulation results were found to be realistic and coincided with data obtained from the literature. These results indicate that the model can be a useful tool for assessing the potential effects of different stressors on long-term population dynamics, and consequently, may improve the current understanding of cause and effect relationships in freshwater mussel communities. ?? 2006 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Modelling","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ecolmodel.2006.03.018","issn":"03043800","usgsCitation":"Morales, Y., Weber, L., Mynett, A., and Newton, T., 2006, Mussel dynamics model: A hydroinformatics tool for analyzing the effects of different stressors on the dynamics of freshwater mussel communities: Ecological Modelling, v. 197, no. 3-4, p. 448-460, https://doi.org/10.1016/j.ecolmodel.2006.03.018.","startPage":"448","endPage":"460","numberOfPages":"13","costCenters":[],"links":[{"id":210102,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecolmodel.2006.03.018"},{"id":236921,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"197","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a60dfe4b0c8380cd71713","contributors":{"authors":[{"text":"Morales, Y.","contributorId":47961,"corporation":false,"usgs":true,"family":"Morales","given":"Y.","email":"","affiliations":[],"preferred":false,"id":417398,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weber, L.J.","contributorId":79988,"corporation":false,"usgs":true,"family":"Weber","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":417399,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mynett, A.E.","contributorId":31188,"corporation":false,"usgs":true,"family":"Mynett","given":"A.E.","email":"","affiliations":[],"preferred":false,"id":417397,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Newton, T.J.","contributorId":104428,"corporation":false,"usgs":true,"family":"Newton","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":417400,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70180912,"text":"70180912 - 2006 - Postrelease movements and survival of adult and young black-footed ferrets","interactions":[],"lastModifiedDate":"2017-02-07T14:43:10","indexId":"70180912","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Postrelease movements and survival of adult and young black-footed ferrets","docAbstract":"<p>A successful captive breeding program for highly endangered black-footed ferrets (Mustela nigripes) has resulted in surplus animals that have been released at multiple sites since 1991. Because reproductive output of captive ferrets declines after several years, many adult ferrets must be removed from captive breeding facilities annually to keep total production high. Adults are routinely released, with young-of-the-year, on prairie dog (Cynomys spp.) colonies. We evaluated postrelease movements and survival rates for 94 radio-tagged young and adult ferrets. Radio-tagged adult ferrets made longer movements than young ferrets during the night of release and had significantly lower survival rates for the first 14 days. Coyotes (Canis latrans) caused the largest number of ferret losses. A larger data set of 623 ferrets represented adults and young that were individually marked with passive integrated transponders but were not radio tagged. Minimum survival rates, calculated primarily from ferrets detected during spotlight searches and identified with tag readers, again were significantly lower for adults than for young ferrets at 30 days postrelease (10.1 percent and 45.5 percent survival, respectively) and at 150 days postrelease (5.7 percent and 25.9 percent). Assessment of known survival time by using linear modeling demonstrated a significant interaction between age and sex, with greater disparity between adults and kits for females than for males. Postrelease survival of adult ferrets might be increased if animals were given earlier and longer exposure to the quasinatural environments of preconditioning pens.&nbsp;</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Recovery of the black-footed ferret: Progress and continuing challenges- Proceedings of the Symposium on the Status of the Black-footed Ferret and Its Habitat, Fort Collins, Colorado, January 28-29, 2004 (Scientific Investigations Report 2005-5293)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"conferenceTitle":"Symposium on the Status of the Black-footed Ferret and Its Habitat","conferenceDate":"January 28-29, 2004","conferenceLocation":"Fort Collins, CO","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Biggins, D.E., Godbey, J.L., Livieri, T., Matchett, M.R., and Bibles, B.D., 2006, Postrelease movements and survival of adult and young black-footed ferrets, <i>in</i> Recovery of the black-footed ferret: Progress and continuing challenges- Proceedings of the Symposium on the Status of the Black-footed Ferret and Its Habitat, Fort Collins, Colorado, January 28-29, 2004 (Scientific Investigations Report 2005-5293), Fort Collins, CO, January 28-29, 2004, p. 191-200.","productDescription":"10 p.","startPage":"191","endPage":"200","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":334903,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334902,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2005/5293/report.pdf#page=202","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"589aeab3e4b0efcedb72d255","contributors":{"authors":[{"text":"Biggins, Dean E. 0000-0003-2078-671X bigginsd@usgs.gov","orcid":"https://orcid.org/0000-0003-2078-671X","contributorId":2522,"corporation":false,"usgs":true,"family":"Biggins","given":"Dean","email":"bigginsd@usgs.gov","middleInitial":"E.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":662797,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Godbey, Jerry L. godbeyj@usgs.gov","contributorId":5121,"corporation":false,"usgs":true,"family":"Godbey","given":"Jerry","email":"godbeyj@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":662798,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Livieri, Travis M.","contributorId":16265,"corporation":false,"usgs":true,"family":"Livieri","given":"Travis M.","affiliations":[],"preferred":false,"id":662799,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Matchett, Marc R.","contributorId":35581,"corporation":false,"usgs":true,"family":"Matchett","given":"Marc","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":662800,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bibles, Brent D.","contributorId":77720,"corporation":false,"usgs":true,"family":"Bibles","given":"Brent","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":662801,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70028695,"text":"70028695 - 2006 - Comparison of the historical record of earthquake hazard with seismic-hazard models for New Zealand and the continental United States","interactions":[],"lastModifiedDate":"2018-07-15T11:35:05","indexId":"70028695","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of the historical record of earthquake hazard with seismic-hazard models for New Zealand and the continental United States","docAbstract":"We compare the historical record of earthquake hazard experienced at 78 towns and cities (sites) distributed across New Zealand and the continental United States with the hazard estimated from the national probabilistic seismic-hazard (PSH) models for the two countries. The two PSH models are constructed with similar methodologies and data. Our comparisons show a tendency for the PSH models to slightly exceed the historical hazard in New Zealand and westernmost continental United States interplate regions, but show lower hazard than that of the historical record in the continental United States intraplate region. Factors such as non-Poissonian behavior, parameterization of active fault data in the PSH calculations, and uncertainties in estimation of ground-motion levels from historical felt intensity data for the interplate regions may have led to the higher-than-historical levels of hazard at the interplate sites. In contrast, the less-than-historical hazard for the remaining continental United States (intraplate) sites may be largely due to site conditions not having been considered at the intraplate sites, and uncertainties in correlating ground-motion levels to historical felt intensities. The study also highlights the importance of evaluating PSH models at more than one region, because the conclusions reached on the basis of a solely interplate or intraplate study would be very different.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120050176","issn":"00371106","usgsCitation":"Stirling, M.W., and Petersen, M.D., 2006, Comparison of the historical record of earthquake hazard with seismic-hazard models for New Zealand and the continental United States: Bulletin of the Seismological Society of America, v. 96, no. 6, p. 1978-1994, https://doi.org/10.1785/0120050176.","startPage":"1978","endPage":"1994","numberOfPages":"17","costCenters":[],"links":[{"id":209663,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120050176"},{"id":236332,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f8ace4b0c8380cd4d204","contributors":{"authors":[{"text":"Stirling, Mark W.","contributorId":175118,"corporation":false,"usgs":false,"family":"Stirling","given":"Mark","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":419296,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Petersen, Mark D. 0000-0001-8542-3990 mpetersen@usgs.gov","orcid":"https://orcid.org/0000-0001-8542-3990","contributorId":1163,"corporation":false,"usgs":true,"family":"Petersen","given":"Mark","email":"mpetersen@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":419297,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70028294,"text":"70028294 - 2006 - Platinum-group element, Gold, Silver and Base Metal distribution in compositionally zoned sulfide droplets from the Medvezky Creek Mine, Noril'sk, Russia","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028294","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1336,"text":"Contributions to Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Platinum-group element, Gold, Silver and Base Metal distribution in compositionally zoned sulfide droplets from the Medvezky Creek Mine, Noril'sk, Russia","docAbstract":"Concentrations of Ag, Au, Cd, Co, Re, Zn and Platinum-group elements (PGE) have been determined in sulfide minerals from zoned sulfide droplets of the Noril'sk 1 Medvezky Creek Mine. The aims of the study were; to establish whether these elements are located in the major sulfide minerals (pentlandite, pyrrhotite, chalcopyrite and cubanite), to establish whether the elements show a preference for a particular sulfide mineral and to investigate the model, which suggests that the zonation in the droplets is caused by the crystal fractionation of monosulfide solid solution (mss). Nickel, Cu, Ag, Re, Os, Ir, Ru, Rh and Pd, were found to be largely located in the major sulfide minerals. In contrast, less than 25% of the Au, Cd, Pt and Zn in the rock was found to be present in these sulfides. Osmium, Ir, Ru, Rh and Re were found to be concentrated in pyrrhotite and pentlandite. Palladium and Co was found to be concentrated in pentlandite. Silver, Cd and Zn concentrations are highest in chalcopyrite and cubanite. Gold and platinum showed no preference for any of the major sulfide minerals. The enrichment of Os, Ir, Ru, Rh and Re in pyrrhotite and pentlandite (exsolution products of mss) and the low levels of these elements in the cubanite and chalcopyrite (exsolution products of intermediate solid solution, iss) support the mss crystal fractionation model, because Os, Ir, Ru, Rh and Re are compatible with mss. The enrichment of Ag, Cd and Zn in chalcopyrite and cubanite also supports the mss fractionation model these minerals are derived from the fractionated liquid and these elements are incompatible with mss and thus should be enriched in the fractionated liquid. Gold and Pt do not partition into either iss or mss and become sufficiently enriched in the final fractionated liquid to crystallize among the iss and mss grains as tellurides, bismithides and alloys. During pentlandite exsolution Pd appears to have diffused from the Cu-rich portion of the droplet into pentlandite. ?? Springer-Verlag 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Contributions to Mineralogy and Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00410-006-0100-9","issn":"00107999","usgsCitation":"Barnes, S., Cox, R., and Zientek, M.L., 2006, Platinum-group element, Gold, Silver and Base Metal distribution in compositionally zoned sulfide droplets from the Medvezky Creek Mine, Noril'sk, Russia: Contributions to Mineralogy and Petrology, v. 152, no. 2, p. 187-200, https://doi.org/10.1007/s00410-006-0100-9.","startPage":"187","endPage":"200","numberOfPages":"14","costCenters":[],"links":[{"id":210210,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00410-006-0100-9"},{"id":237063,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"152","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-05-31","publicationStatus":"PW","scienceBaseUri":"505a7c2fe4b0c8380cd79852","contributors":{"authors":[{"text":"Barnes, S.-J.","contributorId":95631,"corporation":false,"usgs":true,"family":"Barnes","given":"S.-J.","email":"","affiliations":[],"preferred":false,"id":417436,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cox, R.A.","contributorId":17818,"corporation":false,"usgs":true,"family":"Cox","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":417435,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zientek, M. L.","contributorId":6118,"corporation":false,"usgs":true,"family":"Zientek","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":417434,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028470,"text":"70028470 - 2006 - A robust design mark-resight abundance estimator allowing heterogeneity in resighting probabilities","interactions":[],"lastModifiedDate":"2012-03-12T17:20:45","indexId":"70028470","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2151,"text":"Journal of Agricultural, Biological, and Environmental Statistics","active":true,"publicationSubtype":{"id":10}},"title":"A robust design mark-resight abundance estimator allowing heterogeneity in resighting probabilities","docAbstract":"This article introduces the beta-binomial estimator (BBE), a closed-population abundance mark-resight model combining the favorable qualities of maximum likelihood theory and the allowance of individual heterogeneity in sighting probability (p). The model may be parameterized for a robust sampling design consisting of multiple primary sampling occasions where closure need not be met between primary occasions. We applied the model to brown bear data from three study areas in Alaska and compared its performance to the joint hypergeometric estimator (JHE) and Bowden's estimator (BOWE). BBE estimates suggest heterogeneity levels were non-negligible and discourage the use of JHE for these data. Compared to JHE and BOWE, confidence intervals were considerably shorter for the AICc model-averaged BBE. To evaluate the properties of BBE relative to JHE and BOWE when sample sizes are small, simulations were performed with data from three primary occasions generated under both individual heterogeneity and temporal variation in p. All models remained consistent regardless of levels of variation in p. In terms of precision, the AICc model-averaged BBE showed advantages over JHE and BOWE when heterogeneity was present and mean sighting probabilities were similar between primary occasions. Based on the conditions examined, BBE is a reliable alternative to JHE or BOWE and provides a framework for further advances in mark-resight abundance estimation. ?? 2006 American Statistical Association and the International Biometric Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Agricultural, Biological, and Environmental Statistics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1198/108571106X129171","issn":"10857117","usgsCitation":"McClintock, B., White, G.C., and Burnham, K., 2006, A robust design mark-resight abundance estimator allowing heterogeneity in resighting probabilities: Journal of Agricultural, Biological, and Environmental Statistics, v. 11, no. 3, p. 231-248, https://doi.org/10.1198/108571106X129171.","startPage":"231","endPage":"248","numberOfPages":"18","costCenters":[],"links":[{"id":210193,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1198/108571106X129171"},{"id":237039,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e564e4b0c8380cd46d26","contributors":{"authors":[{"text":"McClintock, B.T.","contributorId":29108,"corporation":false,"usgs":true,"family":"McClintock","given":"B.T.","email":"","affiliations":[],"preferred":false,"id":418226,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"White, Gary C.","contributorId":26256,"corporation":false,"usgs":true,"family":"White","given":"Gary","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":418225,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burnham, K.P.","contributorId":63760,"corporation":false,"usgs":true,"family":"Burnham","given":"K.P.","email":"","affiliations":[],"preferred":false,"id":418227,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70028285,"text":"70028285 - 2006 - Hibernating bears as a model for preventing disuse osteoporosis","interactions":[],"lastModifiedDate":"2012-03-12T17:20:44","indexId":"70028285","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2197,"text":"Journal of Biomechanics","active":true,"publicationSubtype":{"id":10}},"title":"Hibernating bears as a model for preventing disuse osteoporosis","docAbstract":"The hibernating bear is an excellent model for disuse osteoporosis in humans because it is a naturally occurring large animal model. Furthermore, bears and humans have similar lower limb skeletal morphology, and bears walk plantigrade like humans. Black bears (Ursus americanus) may not develop disuse osteoporosis during long periods of disuse (i.e. hibernation) because they maintain osteoblastic bone formation during hibernation. As a consequence, bone volume, mineral content, porosity, and strength are not adversely affected by annual periods of disuse. In fact, cortical bone bending strength has been shown to increase with age in hibernating black bears without a significant change in porosity. Other animals require remobilization periods 2-3 times longer than the immobilization period to recover the bone lost during disuse. Our findings support the hypothesis that black bears, which hibernate for as long as 5-7 months annually, have evolved biological mechanisms to mitigate the adverse effects of disuse on bone porosity and strength. ?? 2005 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Biomechanics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jbiomech.2005.03.030","issn":"00219290","usgsCitation":"Donahue, S., McGee, M., Harvey, K., Vaughan, M., and Robbins, C., 2006, Hibernating bears as a model for preventing disuse osteoporosis: Journal of Biomechanics, v. 39, no. 8, p. 1480-1488, https://doi.org/10.1016/j.jbiomech.2005.03.030.","startPage":"1480","endPage":"1488","numberOfPages":"9","costCenters":[],"links":[{"id":210101,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jbiomech.2005.03.030"},{"id":236920,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3097e4b0c8380cd5d78f","contributors":{"authors":[{"text":"Donahue, S.W.","contributorId":55619,"corporation":false,"usgs":true,"family":"Donahue","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":417394,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McGee, M.E.","contributorId":11819,"corporation":false,"usgs":true,"family":"McGee","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":417392,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harvey, K.B.","contributorId":11820,"corporation":false,"usgs":true,"family":"Harvey","given":"K.B.","email":"","affiliations":[],"preferred":false,"id":417393,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vaughan, M.R.","contributorId":74925,"corporation":false,"usgs":true,"family":"Vaughan","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":417396,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Robbins, C.T.","contributorId":58444,"corporation":false,"usgs":true,"family":"Robbins","given":"C.T.","affiliations":[],"preferred":false,"id":417395,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70028561,"text":"70028561 - 2006 - Coseismic and initial postseismic deformation from the 2004 Parkfield, California, earthquake, observed by global positioning system, electronic distance meter, creepmeters, and borehole strainmeters","interactions":[],"lastModifiedDate":"2012-03-12T17:20:59","indexId":"70028561","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Coseismic and initial postseismic deformation from the 2004 Parkfield, California, earthquake, observed by global positioning system, electronic distance meter, creepmeters, and borehole strainmeters","docAbstract":"Global Positioning System (GPS), electronic distance meter, creepmeter, and strainmeter measurements spanning the M 6.0 Parkfield, California, earthquake are examined. Using these data from 100 sec through 9 months following the main-shock, the Omori's law, with rate inversely related to time, l/t p and p ranging between 0.7 and 1.3, characterizes the time-dependent deformation during the post-seismic period; these results are consistent with creep models for elastic solids. With an accurate function of postseismic response, the coseismic displacements can be estimated from the high-rate, 1-min sampling GPS; and the coseismic displacements are approximately 75% of those estimated from the daily solutions. Consequently, fault-slip models using daily solutions overestimate coseismic slip. In addition, at 2 months and at 8 months following the mainshock, postseismic displacements are modeled as slip on the San Andreas fault with a lower bound on the moment exceeding that of the coseismic moment.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120050823","issn":"00371106","usgsCitation":"Langbein, J., Murray, J., and Snyder, H.A., 2006, Coseismic and initial postseismic deformation from the 2004 Parkfield, California, earthquake, observed by global positioning system, electronic distance meter, creepmeters, and borehole strainmeters: Bulletin of the Seismological Society of America, v. 96, no. 4 B, https://doi.org/10.1785/0120050823.","costCenters":[],"links":[{"id":209731,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120050823"},{"id":236428,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"4 B","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fc5ae4b0c8380cd4e237","contributors":{"authors":[{"text":"Langbein, J.","contributorId":16990,"corporation":false,"usgs":true,"family":"Langbein","given":"J.","affiliations":[],"preferred":false,"id":418604,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Murray, J.R.","contributorId":39179,"corporation":false,"usgs":true,"family":"Murray","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":418605,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Snyder, Hollice A.","contributorId":59530,"corporation":false,"usgs":true,"family":"Snyder","given":"Hollice","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":418606,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}