The heat and salt flux boundary conditions together with the freezing curve relationship are a necessary component of any ice-sea water thermodynamic model. A neutral two-layer oceanic planetary boundary layer model that incorporates these boundary conditions gives the following results: The interfacial salinity is within 10% of the far-field salinity for conditions commonly encountered in the MIZ and depends only on the turbulent Lewis number and the far-field temperature and salinity. The predicted melt rates agree with the limited field observations, of the order of 1 m day−1. The Obukov lengths, determined from the predicted interface conditions and melt rates, are generally much greater than the Ekman layer thicknesses; hence, the surface buoyancy flux has little effect on the turbulence in the planetary boundary layer.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JC088iC05p02841","issn":"01480227","usgsCitation":"Josberger, E., 1983, Sea ice melting in the marginal ice zone: Journal of Geophysical Research - Oceans, v. 88, no. C5, p. 2841-2844, https://doi.org/10.1029/JC088iC05p02841.","productDescription":"4 p.","startPage":"2841","endPage":"2844","numberOfPages":"4","costCenters":[],"links":[{"id":222571,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"C5","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505b87dae4b08c986b3166b5","contributors":{"authors":[{"text":"Josberger, E.G.","contributorId":61161,"corporation":false,"usgs":true,"family":"Josberger","given":"E.G.","email":"","affiliations":[],"preferred":false,"id":362584,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70012037,"text":"70012037 - 1983 - Selective concentration of aromatic bases from water with a resin adsorbent","interactions":[],"lastModifiedDate":"2023-03-10T17:04:03.982035","indexId":"70012037","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Selective concentration of aromatic bases from water with a resin adsorbent","docAbstract":"Aromatic bases are concentrated from water on columns of a resin adsorbent and recovered by aqueous-acid elution. The degree of concentration attainable depends on the ratio of the capacity factor (k) of the neutral form of the amine to that of the ionized form. Capacity factors of ionic forms of amines on XAD-8 resin (a methylacrylic ester polymer) are greater than zero, ranging from 20 to 250 times lower than those of their neutral forms; they increase with increasing hydrophobicity of the amine. Thus, desorption by acid is an edition (k during desorption >0) rather than a displacement (k during desorption = 0) process. The degree of concentration attainable on XAD-8 resin varies with the hydrophobicity of the amine, being limited for hydrophilic solutes (for example, pyridine) by small neutral-form k's, reaching a maximum for amines of intermediate hydrophobicity (for example, quinoline), and decreasing for more hydrophobc solutes (for example, acridine) because of their large ionic-form k's.","language":"English","publisher":"ACS Publications","doi":"10.1021/ac00252a029","usgsCitation":"Stuber, H.A., and Leenheer, J.A., 1983, Selective concentration of aromatic bases from water with a resin adsorbent: Analytical Chemistry, v. 55, no. 1, p. 111-115, https://doi.org/10.1021/ac00252a029.","productDescription":"5 p.","startPage":"111","endPage":"115","numberOfPages":"5","costCenters":[],"links":[{"id":222570,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"1","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505b8cdce4b08c986b318178","contributors":{"authors":[{"text":"Stuber, H. A.","contributorId":52721,"corporation":false,"usgs":true,"family":"Stuber","given":"H.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":362582,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leenheer, Jerry A.","contributorId":72420,"corporation":false,"usgs":true,"family":"Leenheer","given":"Jerry","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":362583,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011966,"text":"70011966 - 1983 - Paleoceanographic implications of Miocene deep-sea hiatuses","interactions":[],"lastModifiedDate":"2024-01-03T12:09:04.57994","indexId":"70011966","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","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":"Paleoceanographic implications of Miocene deep-sea hiatuses","docAbstract":"Miocene paleoceanographic evolution exhibits major changes resulting from the opening and closing of passages, the subsequent changes in oceanic circulation, and development of major Antarctic glaciation. The consequences and timing of these events can be observed in variations in the distribution of deep-sea hiatuses, sedimentation patterns, and biogeographic distribution of planktic organisms.
The opening of the Drake Passage in the latest Oligocene to early Miocene (25–20 Ma) resulted in the establishment of the deep circumpolar current, which led to thermal isolation of Antarctica and increased global cooling. This development was associated with a major turnover in planktic organisms, resulting in the evolution of Neogene assemblages and the eventual extinction of Paleogene assemblages. The erosive patterns of two widespread hiatuses (PH, 23.0–22.5 Ma; and NH 1, 20–18 Ma) indicate that a deep circumequatorial circulation existed at this time, characterized by a broad band of carbonate-ooze deposition. Siliceous sedimentation was restricted to the North Atlantic and a narrow band around Antarctica.
A major reorganization in deep-sea sedimentation and hiatus distribution patterns occurred near the early/middle Miocene boundary, apparently resulting from changes in oceanic circulation. Beginning at this time, deep-sea erosion occurred throughout the Caribbean (hiatus NH 2, 16–15 Ma), suggesting disruption of the deep circumequatorial circulation and northward deflection of deep currents, and/or intensification of the Gulf Stream. Sediment distribution patterns changed dramatically with the sudden appearance of siliceous-ooze deposition in the marginal and east equatorial North Pacific by 16.0 to 15.5 Ma, coincident with the decline of siliceous sedimentation in the North Atlantic. This silica switch may have been caused by the introduction of Norwegian Overflow Water into the North Atlantic acting as a barrier to outcropping of silica-rich Antarctic Bottom Water.
The main aspects of the present oceanic circulation system and sediment distribution pattern were established by 13.5 to 12.5 Ma (hiatus NH 3), coincident with the establishment of a major East Antarctic ice cap. Antarctic glaciation resulted in a broadening belt of siliceous-ooze deposition around Antarctica, increased siliceous sedimentation in the marginal and east equatorial North Pacific and Indian Oceans, and further northward restriction of siliceous sediments in the North Atlantic. Periodic cool climatic events were accompanied by lower eustatic sea levels and widespread deep-sea erosion at 12 to 11 Ma (NH 4), 10 to 9 Ma (NH 5), 7.5 to 6.2 Ma (NH 6), and 5.2 to 4.7 Ma (NH 7).
Examination of SEASAT SAR images of eastern Maryland and Virginia reveals botanical distinctions between vegetated lowland areas and adjacent upland areas. Radar returns from the lowland areas can be either brighter or darker than returns from the upland forests. Scattering models and scatterometer measurements predict an increase of 6 dB in backscatter from vegetation over standing water. This agrees with the SCWigital number (DN) increase observed in the digital SEASAT data. The brightest areas in the Chickahominy, Virginia, drainage, containing P. virginica about 0.4 m high, contrast with the brightest areas in the Blackwater, Maryland, marshes, which contain mature loblolly pine in standing water. The darkest vegetated area in the Chickahominy drainage contains a forest of Nyssa aquatica (water tupelo) about 18 m high, while the darkest vegetated area in the Blackwater marshes contains the marsh plant Spartina alterniflora, 0.3 m high. The density, morphology, and relative geometry of the lowland vegetation with respect to standing water can all affect the strength of the return L band signal.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JC088iC03p01937","issn":"01480227","usgsCitation":"Krohn, M.D., Milton, N., and Segal, D.B., 1983, Seasat synthetic aperture radar ( SAR) response to lowland vegetation types in eastern Maryland and Virginia: Journal of Geophysical Research - Oceans, v. 88, no. C3, p. 1937-1952, https://doi.org/10.1029/JC088iC03p01937.","productDescription":"16 p.","startPage":"1937","endPage":"1952","numberOfPages":"16","costCenters":[],"links":[{"id":221402,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"C3","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505b8855e4b08c986b316906","contributors":{"authors":[{"text":"Krohn, M. D.","contributorId":51250,"corporation":false,"usgs":true,"family":"Krohn","given":"M.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":362397,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Milton, N.M.","contributorId":29415,"corporation":false,"usgs":true,"family":"Milton","given":"N.M.","email":"","affiliations":[],"preferred":false,"id":362396,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Segal, D. B.","contributorId":60236,"corporation":false,"usgs":true,"family":"Segal","given":"D.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":362398,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70010329,"text":"70010329 - 1983 - Comparison of analytical methods for the determination of silica in geothermal waters","interactions":[],"lastModifiedDate":"2012-03-12T17:18:25","indexId":"70010329","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of analytical methods for the determination of silica in geothermal waters","docAbstract":"The silica concentration of 26 Guatemalan geothermal waters were analyzed colorimetrically (spectrophotometrically) and by atomic absorption. Results by the atomic absorption method were less affected by polymerization and precipitation of silica from supersaturated solutions. Shaking the samples prior to analysis improves the accuracy of the atomic absorption results. The advantages of colorimetric analysis over atomic absorption are better sensitivity and precision. However, for accurate colorimetric results, geothermal samples must be sufficiently diluted in the field, which ensures that no further polymerization occurs and that amorphous silica that may be present will redissolve. If the samples are not diluted in the field they should be diluted in the laboratory and left standing for at least a month to allow the silica to redissolve. If analyzed immediately the diluted samples should be made alkaline and heated overnight in a 90?? oven. ?? 1983.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Chemerys, J., 1983, Comparison of analytical methods for the determination of silica in geothermal waters: Journal of Volcanology and Geothermal Research, v. 16, no. 1-2, p. 57-63.","startPage":"57","endPage":"63","numberOfPages":"7","costCenters":[],"links":[{"id":218717,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f84fe4b0c8380cd4cff2","contributors":{"authors":[{"text":"Chemerys, J.C.","contributorId":94293,"corporation":false,"usgs":true,"family":"Chemerys","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":358651,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70010304,"text":"70010304 - 1983 - Stability of streams and lakes on Mars","interactions":[],"lastModifiedDate":"2024-02-16T12:20:34.967206","indexId":"70010304","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Stability of streams and lakes on Mars","docAbstract":"Under present climatic conditions streams and lakes on Mars will freeze. Freezing is slow and would have a negligible effect in impeding flow of the large floods that are believed to have eroded the outflow channels. Valley networks are more difficult to form under current climatic conditions since they appear to have formed by slow erosion by streams of modest discharges. Freezing of small Martian streams was modeled for a variety of climatic conditions on the supposition that the Martian atmosphere may have been considerably thicker in the past when the valley networks formed. The modeling involves examination of the energy balance at the upper and lower surfaces of ice on streams to determine the rate at which the ice thickens with time. The results indicate that freezing rates are not strongly dependent on atmospheric pressure. With no wind, increasing the pressure by a factor of 10 cuts the time taken to freeze solid only by about a factor of about 2. Under windy conditions dependence on atmospheric pressure is even weaker. The distance that water could travel in a stream before flow is arrested by freezing is also calculated. The distances depend on the initial temperature of the stream and when icings develop, but in general, if a stream deeper than 2 m can be initiated and sustained, the water within it can survive long enough to cut most of the valley networks observed. The main problem with forming the valley is initiating the flow. Groundwater seepage alone appears inadequate because of the difficulty of recharging the groundwater system. Melting of ice precipitated onto the surface following injection of water into the atmosphere by large impacts is a possible source of water, but the climatic conditions under which the ice could melt and the water be collected into streams that can survive long enough to cut the valley is uncertain.
Methods are described for developing geochemical reaction models from the observed chemical compositions of ground water along a hydrologic flow path. The roles of thermodynamic speciation programs, mass balance calculations, and reaction-path simulations in developing and testing reaction models are contrasted. Electron transfer is included in the mass balance equations to properly account for redox reactions in ground water. The mass balance calculations determine net mass transfer models which must be checked against the thermodynamic calculations of speciation and reaction-path programs. Although reaction-path simulations of ground-water chemistry are thermodynamically valid, they must be checked against the net mass transfer defined by the mass balance calculations. An example is given testing multiple reaction hypotheses along a flow path in the Floridan aquifer where several reaction models are eliminated. Use of carbon and sulfur isotopic data with mass balance calculations indicates a net reaction of incongruent dissolution of dolomite (dolomite dissolution with calcite precipitation) driven irreversibly by gypsum dissolution, accompanied by minor sulfate reduction, ferric hydroxide dissolution, and pyrite precipitation in central Florida. Along the flow path, the aquifer appears to be open to CO2 initially, and open to organic carbon at more distant points down gradient.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(83)90102-3","issn":"00167037","usgsCitation":"Plummer, N., Parkhurst, D., and Thorstenson, D., 1983, Development of reaction models for ground-water systems: Geochimica et Cosmochimica Acta, v. 47, no. 4, p. 665-685, https://doi.org/10.1016/0016-7037(83)90102-3.","productDescription":"21 p.","startPage":"665","endPage":"685","numberOfPages":"21","costCenters":[],"links":[{"id":221377,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0060e4b0c8380cd4f71d","contributors":{"authors":[{"text":"Plummer, Niel 0000-0002-4020-1013 nplummer@usgs.gov","orcid":"https://orcid.org/0000-0002-4020-1013","contributorId":190100,"corporation":false,"usgs":true,"family":"Plummer","given":"Niel","email":"nplummer@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":361610,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Parkhurst, D.L.","contributorId":12474,"corporation":false,"usgs":true,"family":"Parkhurst","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":361608,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thorstenson, D.C.","contributorId":47377,"corporation":false,"usgs":true,"family":"Thorstenson","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":361609,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011643,"text":"70011643 - 1983 - River discharge controls phytoplankton dynamics in the northern San Francisco Bay estuary","interactions":[],"lastModifiedDate":"2023-10-12T16:40:50.009623","indexId":"70011643","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"River discharge controls phytoplankton dynamics in the northern San Francisco Bay estuary","docAbstract":"Phytoplankton dynamics in the upper reach of the northern San Francisco Bay estuary are usually characterized by low biomass dominated by microflagellates or freshwater diatoms in winter, and high biomass dominated by neritic diatoms in summer. During two successive years of very low river discharge (the drought of 1976-77), the summer diatom bloom was absent. This is consistent with the hypothesis that formation of the diatom population maximum is a consequence of the same physical mechanisms that create local maxima of suspended sediments in partially-mixed estuaries: density-selective retention of particles within an estuarine circulation cell. Because the estuary is turbid, calculated phytoplankton growth rates are small in the central deep channel but are relatively large in lateral shallow embayments where light limination is less severe. When river discharge falls within a critical range (100–350 m3 s−1) that positions the suspended particulate maximum adjacent to the productive shallow bays, the population of neritic diatoms increases. However, during periods of high discharge (winter) or during periods of very low discharge (drought), the suspended particulate maximum is less well-defined and is uncoupled (positioned downstream or upstream) from the shallow bays of the upper estuary, and the population of neritic diatoms declines. Hence, the biomass and community composition of phytoplankton in this estuary are controlled by river discharge.
","language":"English","publisher":"Elsevier","doi":"10.1016/0272-7714(83)90103-8","issn":"02727714","usgsCitation":"Cloern, J., Alpine, A., Cole, B., Wong, R., Arthur, J., and Ball, M., 1983, River discharge controls phytoplankton dynamics in the northern San Francisco Bay estuary: Estuarine, Coastal and Shelf Science, v. 16, no. 4, p. 415-429, https://doi.org/10.1016/0272-7714(83)90103-8.","productDescription":"16 p.","startPage":"415","endPage":"429","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":221306,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay Estuary","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -121.67860827479112,\n 38.17972343390355\n ],\n [\n -121.72185933528598,\n 38.128405366754606\n ],\n [\n -121.80574273204653,\n 38.07724899336887\n ],\n [\n -121.85816985502179,\n 38.10365675536943\n ],\n [\n -121.88333487404992,\n 38.19930489305705\n ],\n [\n -121.99448037475733,\n 38.25860959509595\n ],\n [\n -122.06368417708458,\n 38.261902882824785\n ],\n [\n -122.0552958374087,\n 38.21743090430013\n ],\n [\n -122.10982004530292,\n 38.14819821674985\n ],\n [\n -122.14337340400718,\n 38.05743691162294\n ],\n [\n -122.18531510238735,\n 38.08220117543107\n ],\n [\n -122.23145097060544,\n 38.08385182825734\n ],\n [\n -122.25242181979564,\n 38.11685705847927\n ],\n [\n -122.24403348011951,\n 38.13995184835906\n ],\n [\n -122.2741803224406,\n 38.16344960863461\n ],\n [\n -122.2741803917901,\n 38.209389806269826\n ],\n [\n -122.2741803917901,\n 38.31806307364852\n ],\n [\n -122.2909570711421,\n 38.31148144351823\n ],\n [\n -122.3014424957372,\n 38.23904409193926\n ],\n [\n -122.32870459968431,\n 38.21762832037365\n ],\n [\n -122.36016087346937,\n 38.224218460130885\n ],\n [\n -122.43355884563482,\n 38.19126179252572\n ],\n [\n -122.42097633612073,\n 38.14674662587248\n ],\n [\n -122.44194718531095,\n 38.13190219633765\n ],\n [\n -122.50695681780027,\n 38.12200423235305\n ],\n [\n -122.54470434634223,\n 38.074145157084786\n ],\n [\n -122.50905390271924,\n 38.032862181484404\n ],\n [\n -122.53841309158531,\n 38.02625474476622\n ],\n [\n -122.54260726142326,\n 37.99816649067043\n ],\n [\n -122.46920928925806,\n 37.98659761091274\n ],\n [\n -122.5174422423951,\n 37.97998600333291\n ],\n [\n -122.50276264796207,\n 37.94857273288481\n ],\n [\n -122.5677722804514,\n 37.960147606529134\n ],\n [\n -122.49227722336698,\n 37.9055643787092\n ],\n [\n -122.54260726142326,\n 37.91383716970965\n ],\n [\n -122.49227722336698,\n 37.83934857016823\n ],\n [\n -122.46711220433909,\n 37.787990394543186\n ],\n [\n -122.41678216628281,\n 37.79793347471225\n ],\n [\n -122.40210257184953,\n 37.787990394543186\n ],\n [\n -122.31402500525127,\n 37.79793347471225\n ],\n [\n -122.28466581638494,\n 37.829411066486344\n ],\n [\n -122.30353958065618,\n 37.91383716970965\n ],\n [\n -122.3580637885504,\n 37.92541751428918\n ],\n [\n -122.38952006233569,\n 37.9469190306186\n ],\n [\n -122.34338419411736,\n 37.99320862275796\n ],\n [\n -122.29934541081823,\n 37.996513905269396\n ],\n [\n -122.2427241180048,\n 38.04442376165795\n ],\n [\n -122.20078241962464,\n 38.032862181484404\n ],\n [\n -122.16093780616347,\n 38.00642885910747\n ],\n [\n -122.10641359826926,\n 38.01634247231132\n ],\n [\n -122.00365643723772,\n 38.03781736791686\n ],\n [\n -121.82750130404074,\n 37.99981903883432\n ],\n [\n -121.74152082236147,\n 37.996513905269396\n ],\n [\n -121.67651118987189,\n 37.97006747503529\n ],\n [\n -121.67860827479112,\n 38.17972343390355\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"16","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aada9e4b0c8380cd86f4b","contributors":{"authors":[{"text":"Cloern, J. E.","contributorId":59453,"corporation":false,"usgs":true,"family":"Cloern","given":"J. E.","affiliations":[],"preferred":false,"id":361605,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Alpine, A.E.","contributorId":6063,"corporation":false,"usgs":true,"family":"Alpine","given":"A.E.","affiliations":[],"preferred":false,"id":361602,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cole, B.E.","contributorId":66268,"corporation":false,"usgs":true,"family":"Cole","given":"B.E.","email":"","affiliations":[],"preferred":false,"id":361606,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wong, R.L.J.","contributorId":106642,"corporation":false,"usgs":true,"family":"Wong","given":"R.L.J.","email":"","affiliations":[],"preferred":false,"id":361607,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Arthur, J.F.","contributorId":38428,"corporation":false,"usgs":true,"family":"Arthur","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":361603,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ball, M.D.","contributorId":50410,"corporation":false,"usgs":true,"family":"Ball","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":361604,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70011314,"text":"70011314 - 1983 - Gas-film coefficients for streams","interactions":[],"lastModifiedDate":"2020-01-26T09:43:34","indexId":"70011314","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2255,"text":"Journal of Environmental Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Gas-film coefficients for streams","docAbstract":"Equations for predicting the gas-film coefficient for the volatilization of organic solutes from streams are developed. The film coefficient is a function of windspeed and water temperature. The dependence of the coefficient on windspeed is determined from published information on the evaporation of water from a canal. The dependence of the coefficient on temperature is determined from laboratory studies on the evaporation of water. Procedures for adjusting the coefficients for different organic solutes are based on the molecular diffusion coefficient and the molecular weight. The molecular weight procedure is easiest to use because of the availability of molecular weights. However, the theoretical basis of the procedure is questionable. The diffusion coefficient procedure is supported by considerable data. Questions, however, remain regarding the exact dependence of the film coefficint on the diffusion coefficient. It is suggested that the diffusion coefficient procedure with a 0.68-power dependence be used when precise estimate of the gas-film coefficient are needed and that the molecular weight procedure be used when only approximate estimates are needed.","language":"English","publisher":"ASCE","doi":"10.1061/(ASCE)0733-9372(1983)109:5(1111)","usgsCitation":"Rathbun, R.E., and Tai, D.Y., 1983, Gas-film coefficients for streams: Journal of Environmental Engineering, v. 109, no. 5, p. 1111-1127, https://doi.org/10.1061/(ASCE)0733-9372(1983)109:5(1111).","productDescription":"17 p.","startPage":"1111","endPage":"1127","numberOfPages":"17","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":221518,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"109","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a14dce4b0c8380cd54bd5","contributors":{"authors":[{"text":"Rathbun, R. E.","contributorId":61796,"corporation":false,"usgs":true,"family":"Rathbun","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":360802,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tai, D. Y.","contributorId":59778,"corporation":false,"usgs":true,"family":"Tai","given":"D.","email":"","middleInitial":"Y.","affiliations":[],"preferred":false,"id":360801,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011319,"text":"70011319 - 1983 - VLF electromagnetic investigations of the crater and central dome of Mount St. Helens, Washington","interactions":[],"lastModifiedDate":"2012-03-12T17:19:10","indexId":"70011319","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"VLF electromagnetic investigations of the crater and central dome of Mount St. Helens, Washington","docAbstract":"A very low frequency (VLF) electromagnetic induction survey in the crater of Mount St. Helens has identified several electrically conductive structures that appear to be associated with thermal anomalies and ground water within the crater. The most interesting of these conductive structures lies beneath the central dome. It is probably a partial melt of dacite similar to that comprising the June 1981 lobe of the central dome. ?? 1983.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Towle, J., 1983, VLF electromagnetic investigations of the crater and central dome of Mount St. Helens, Washington: Journal of Volcanology and Geothermal Research, v. 19, no. 1-2, p. 113-120.","startPage":"113","endPage":"120","numberOfPages":"8","costCenters":[],"links":[{"id":221580,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc0ece4b08c986b32a3b9","contributors":{"authors":[{"text":"Towle, J.N.","contributorId":94672,"corporation":false,"usgs":true,"family":"Towle","given":"J.N.","email":"","affiliations":[],"preferred":false,"id":360830,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011320,"text":"70011320 - 1983 - The contribution of humic substances to the acidity of colored natural waters","interactions":[],"lastModifiedDate":"2024-03-19T16:05:18.963199","indexId":"70011320","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"The contribution of humic substances to the acidity of colored natural waters","docAbstract":"An operationally defined carboxyl content of humic substances extracted from rivers, streams, lakes, wetlands, and groundwaters throughout the United States and Canada is reported. Despite the diversity of the samples, only small variations were observed in this humic carboxyl content. The dissociation behavior of two combined fulvic/humic acid extracts was studied and it was found that the dissociation of the humics varied in a predictable manner with pH. Using a carboxyl content of 10 μeq/ mg humic organic carbon, and mass action quotient calculated from sample pH, the ionic balances of three highly colored Nova Scotia rivers were estimated.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(83)90218-1","issn":"00167037","usgsCitation":"Oliver, B., Thurman, E., and Malcolm, R., 1983, The contribution of humic substances to the acidity of colored natural waters: Geochimica et Cosmochimica Acta, v. 47, no. 11, p. 2031-2035, https://doi.org/10.1016/0016-7037(83)90218-1.","productDescription":"5 p.","startPage":"2031","endPage":"2035","numberOfPages":"5","costCenters":[],"links":[{"id":221581,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baa5de4b08c986b3227f2","contributors":{"authors":[{"text":"Oliver, B.G.","contributorId":45834,"corporation":false,"usgs":true,"family":"Oliver","given":"B.G.","email":"","affiliations":[],"preferred":false,"id":360831,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thurman, E.M.","contributorId":102864,"corporation":false,"usgs":true,"family":"Thurman","given":"E.M.","affiliations":[],"preferred":false,"id":360833,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Malcolm, Ronald L.","contributorId":46075,"corporation":false,"usgs":true,"family":"Malcolm","given":"Ronald L.","affiliations":[],"preferred":false,"id":360832,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011324,"text":"70011324 - 1983 - Approximate sampling distribution of the serial correlation coefficient for small samples","interactions":[],"lastModifiedDate":"2018-02-07T13:43:06","indexId":"70011324","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Approximate sampling distribution of the serial correlation coefficient for small samples","docAbstract":"The probability density function for the sample serial correlation coefficient r can be approximated byf(r) = (β(½, ½(T + 1)))−1(1 − r2)½(T− 1)(1+ c2 − 2cr)−½(T), whereβ is the Beta function, T= n− 2, c = ρ − [(1 + ρ)/(n − 3)], n is the number of observations, and ρ is the population lag one serial correlation. This distribution is derived from a large Monte Carlo study at points between ρ= −0.9 and ρ = 0.9 and for n =10, 20, and 30.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR019i002p00579","usgsCitation":"Tasker, G.D., 1983, Approximate sampling distribution of the serial correlation coefficient for small samples: Water Resources Research, v. 19, no. 2, p. 579-582, https://doi.org/10.1029/WR019i002p00579.","productDescription":"4 p.","startPage":"579","endPage":"582","costCenters":[],"links":[{"id":221657,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"2","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"5059ecffe4b0c8380cd4956c","contributors":{"authors":[{"text":"Tasker, Gary D.","contributorId":83097,"corporation":false,"usgs":true,"family":"Tasker","given":"Gary","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":360838,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011327,"text":"70011327 - 1983 - Calculation of amorphous silica solubilities at 25° to 300°C and apparent cation hydration numbers in aqueous salt solutions using the concept of effective density of water","interactions":[],"lastModifiedDate":"2015-06-05T14:10:35","indexId":"70011327","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Calculation of amorphous silica solubilities at 25° to 300°C and apparent cation hydration numbers in aqueous salt solutions using the concept of effective density of water","docAbstract":"The solubility of amorphous silica in aqueous salt solutions at 25° to 300°C can be calculated using information on its solubility in pure water and a model in which the activity of water in the salt solution is defined to equal the effective density. pe, of “free” water in that solution. At temperatures of 100°C and above, pe closely equals the product of the density of the solution times the weight fraction of water in the solution. At 25°C, a correction parameter must be applied to pe that incorporates a term called the apparent cation hydration number, h. Because of the many assumptions and other uncertainties involved in determining values of h, by the model used here, the reported numbers are not necessarily real hydration numbers even though they do agree with some published values determined by activity and diffusion methods. Whether or not h is a real hydration number, it would appear to be useful in its inclusion within a more extensive activity coefficient term that describes the departure of silica solubilities in concentrated salt solutions from expected behavior according to the model presented here. Values of h can be calculated from measured amorphous silica solubilities in salt solutions at 25°C provided there is no complexing of dissolved silica with the dissolved salt, or if the degree of complexing is known. The previously postulated aqueous silica-sulfate complexing in aqueous Na2SO4 solutions is supported by results of the present effective density of water model
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(83)90280-6","issn":"00167037","usgsCitation":"Fournier, R.O., and Williams, M.L., 1983, Calculation of amorphous silica solubilities at 25° to 300°C and apparent cation hydration numbers in aqueous salt solutions using the concept of effective density of water: Geochimica et Cosmochimica Acta, v. 47, no. 3, p. 587-596, https://doi.org/10.1016/0016-7037(83)90280-6.","productDescription":"10 p.","startPage":"587","endPage":"596","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":221746,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f300e4b0c8380cd4b53b","contributors":{"authors":[{"text":"Fournier, Robert O.","contributorId":73202,"corporation":false,"usgs":true,"family":"Fournier","given":"Robert","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":360846,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, Marshall L. mlwilliams@usgs.gov","contributorId":1444,"corporation":false,"usgs":true,"family":"Williams","given":"Marshall","email":"mlwilliams@usgs.gov","middleInitial":"L.","affiliations":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"preferred":true,"id":360845,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011328,"text":"70011328 - 1983 - Thermal decarboxylation of acetic acid: Implications for origin of natural gas","interactions":[],"lastModifiedDate":"2024-03-19T15:46:16.412696","indexId":"70011328","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Thermal decarboxylation of acetic acid: Implications for origin of natural gas","docAbstract":"Laboratory experiments on the thermal decarboxylation of solutions of acetic acid at 200°C and 300°C were carried out in hydrothermal equipment allowing for on-line sampling of both the gas and liquid phases for chemical and stable-carbon-isotope analyses. The solutions had ambient pH values between 2.5 and 7.1; pH values and the concentrations of the various acetate species at the conditions of the experiments were computed using a chemical model.
Results show that the concentrations of acetic acid, and not total acetate in solution, control the reaction rates which follow a first order equation based on decreasing concentrations of acetic acid with time. The decarboxylation rates at 200°C (1.81 × 10−8 per second) and 300°C (8.17 × 10−8 per second) and the extrapolated rates at lower temperatures are relatively high. The activation energy of decarboxylation is only 8.1 kcal/mole. These high decarboxylation rates, together with the distribution of short-chained aliphatic acid anions in formation waters, support the hypothesis that acid anions are precursors for an important portion of natural gas.
Results of the δ13C values of CO2, CH4, and total acetate show a reasonably constant fractionation factor of about 20 permil between CO2 and CH4 at 300°C. The δ13C values of CO2 and CH4 are initially low and become higher as decarboxylation increases.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(83)90262-4","issn":"00167037","usgsCitation":"Kharaka, Y., Carothers, W., and Rosenbauer, R., 1983, Thermal decarboxylation of acetic acid: Implications for origin of natural gas: Geochimica et Cosmochimica Acta, v. 47, no. 3, p. 397-402, https://doi.org/10.1016/0016-7037(83)90262-4.","productDescription":"6 p.","startPage":"397","endPage":"402","numberOfPages":"6","costCenters":[],"links":[{"id":221747,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb21ce4b08c986b3255de","contributors":{"authors":[{"text":"Kharaka, Y.K.","contributorId":23568,"corporation":false,"usgs":true,"family":"Kharaka","given":"Y.K.","email":"","affiliations":[],"preferred":false,"id":360847,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carothers, W.W.","contributorId":43803,"corporation":false,"usgs":true,"family":"Carothers","given":"W.W.","email":"","affiliations":[],"preferred":false,"id":360849,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rosenbauer, R.J.","contributorId":37320,"corporation":false,"usgs":true,"family":"Rosenbauer","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":360848,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011332,"text":"70011332 - 1983 - Snow and ice in a changing hydrological world","interactions":[],"lastModifiedDate":"2024-01-22T16:20:10.42955","indexId":"70011332","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1927,"text":"Hydrological Sciences Journal","active":true,"publicationSubtype":{"id":10}},"title":"Snow and ice in a changing hydrological world","docAbstract":"On the occasion of the 60th anniversary of the International Association of Hydrological Sciences, the 100th and 50th anniversaries of the First and Second International Polar Years, and the 25th anniversary of the International Geophysical Year, it seems appropriate to re-examine the world's water balance and the role of snow and ice in the global hydrological climatic system. Snow cover on land (especially in the Northern Hemisphere) and sea ice (especially in the Southern Hemisphere) vary seasonally, and this seasonal change has an important effect on the world climate because snow and sea ice reflect solar radiation efficiently and affect other heat flow processes between atmosphere and land or ocean. Glaciers, including ice sheets, store most of the fresh water on Earth, but change dimensions relatively slowly. There is no clear evidence that the glacier ice volume currently is declining, but more needs to be known about mountain glacier and ice sheet mass balances. The current rise in sea level poses an enigma: thermal expansion of the oceans may account for half of the present rise, but the other half is unexplained. Although major changes in the large ice sheets take place over time scales of 104 to 105 years, marine ice sheets may be subject to rapid disintegration due to grounding line instability, perhaps accompanied by surging. Ice cores may produce remarkably complete histories of air temperature, precipitation, fallout, and atmospheric composition. A recent core through the Greenland Ice Sheet shows an abrupt transition from glacial to modern climate just over 10000 years ago, suggesting that climate is an “almost intransitive” system. Because of the possibility of abrupt climate transitions and the uncertain stability of the West Antarctic Ice Sheet, future climatic variations are difficult to predict. The calculated heating of the atmosphere in the polar regions due to CO2 increase is, therefore, of special interest.
","language":"English","publisher":"Taylor & Francis","doi":"10.1080/02626668309491140","usgsCitation":"Meier, M.F., 1983, Snow and ice in a changing hydrological world: Hydrological Sciences Journal, v. 28, no. 1, p. 3-22, https://doi.org/10.1080/02626668309491140.","productDescription":"20 p.","startPage":"3","endPage":"22","numberOfPages":"20","costCenters":[],"links":[{"id":480236,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1080/02626668309491140","text":"Publisher Index Page"},{"id":220700,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-12-24","publicationStatus":"PW","scienceBaseUri":"505b91b1e4b08c986b319a33","contributors":{"authors":[{"text":"Meier, M. F.","contributorId":98713,"corporation":false,"usgs":true,"family":"Meier","given":"M.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":360856,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011336,"text":"70011336 - 1983 - Characteristics of resuspended sediment from Georges Bank collected with a sediment trap","interactions":[],"lastModifiedDate":"2017-11-05T09:19:33","indexId":"70011336","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Characteristics of resuspended sediment from Georges Bank collected with a sediment trap","docAbstract":"A sediment trap was deployed 3 m from the bottom at a water depth of 62 m on the southern flank of Georges Bank (41°02·2′N, 67°33·5′W) from 30 September 1978 to 10 March 1979 to qualitatively determine the size of sediments resuspended from the bottom by winter storms and to determine if seasonal changes in the phytoplankton could be observed in the trapped sediment.
Bulk X-ray analyses of the trapped sediment showed layers of distinctly different textures preserved in the collection vessel. The median grain size of sampled layers ranged from 2·7 to 6·5 φ (fine sand to silt), but all layers contained a pronounced mode in the 3 φ (fine sand) range. Nine layers containing relatively large amounts of sand were present. The sand content was 75% in the coarest layers and about 32% in the fine layers. The median grain size of bottom sediments at the deployment site was considerably coarser than the trap samples, although the dominant grain size was also 3 φ.
Average bottom-current speeds during the deployment period were about 30 cm s−1 with a range of 10 to 50 cm s−1. Bottom stress, computed from the observed currents and waves, suggest that 11 storms caused sufficient stress to resuspend 3 φ-sized sediments, in good agreement with the nine layers of relatively coarse sediments collected in the trap. Surface waves had to be included in the calculation of bottom stress because the bottom currents alone were insufficient to cause the resuspension of 3 φ-sized sediment.
The trapped sediments contain numerous diatoms and coccoliths that are typical of late fall and winter assemblages. No clear seasonal difference in the flora was noted among sampled layers, probably due to the large influx of resuspended material and a reduced primary flux during this period. An undescribed species of Thalassiosira (G. Fryxell, personal communication), and siliceous scales of unknown systematic position were observed at all levels.
","language":"English","publisher":"Elsevier","doi":"10.1016/0272-7714(83)90004-5","issn":"02727714","usgsCitation":"Parmenter, C., Bothner, M., and Butman, B., 1983, Characteristics of resuspended sediment from Georges Bank collected with a sediment trap: Estuarine, Coastal and Shelf Science, v. 17, no. 5, p. 521-533, https://doi.org/10.1016/0272-7714(83)90004-5.","productDescription":"13 p.","startPage":"521","endPage":"533","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":220764,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Georges Bank ","volume":"17","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f49de4b0c8380cd4be05","contributors":{"authors":[{"text":"Parmenter, C.M.","contributorId":43740,"corporation":false,"usgs":true,"family":"Parmenter","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":360862,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bothner, Michael H. mbothner@usgs.gov","contributorId":139855,"corporation":false,"usgs":true,"family":"Bothner","given":"Michael H.","email":"mbothner@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":360863,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Butman, B.","contributorId":85580,"corporation":false,"usgs":true,"family":"Butman","given":"B.","email":"","affiliations":[],"preferred":false,"id":360864,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011404,"text":"70011404 - 1983 - An interpretation of carbon and sulfur relationships in Black Sea sediments as indicators of environments of deposition","interactions":[],"lastModifiedDate":"2024-03-18T15:02:00.065197","indexId":"70011404","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"An interpretation of carbon and sulfur relationships in Black Sea sediments as indicators of environments of deposition","docAbstract":"Syngenetic iron sulfides in sediments are formed from dissolved sulfide resulting from sulfate reduction and catabolism of organic matter by anaerobic bacteria. It has been shown that in recent marine sediments deposited below oxygenated waters there is a constant relationship between reduced sulfur and organic carbon which is generally independent of the environment of deposition. Reexamination of data from recent sediments from euxinic marine environments (e.g., the Black Sea) also shows a linear relationship between carbon and sulfur, but the slope is variable and the line intercepts the S axis at a value between 1 and 2 percent S. It is proposed that the positive S intercept is due to watercolumn microbial reduction of sulfate using metabolizable small organic molecules and the sulfide formed is precipitated and accumulates at the sediment-water interface. The variation in slope and intercept of the C to S plots for several cores and for different stratigraphic zones for the Black Sea can be interpreted in relation to thickness of the aqueous sulfide layer or thinness of the oxygen containing layer and to deposition rate, but also may be influenced by availability of iron, and perhaps the type of organic matter (Leventhal, 1979).
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(83)90097-2","issn":"00167037","usgsCitation":"Leventhal, J., 1983, An interpretation of carbon and sulfur relationships in Black Sea sediments as indicators of environments of deposition: Geochimica et Cosmochimica Acta, v. 47, no. 1, p. 133-137, https://doi.org/10.1016/0016-7037(83)90097-2.","productDescription":"5 p.","startPage":"133","endPage":"137","numberOfPages":"5","costCenters":[],"links":[{"id":220706,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea86e4b0c8380cd48909","contributors":{"authors":[{"text":"Leventhal, J.S.","contributorId":60640,"corporation":false,"usgs":true,"family":"Leventhal","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":361014,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011365,"text":"70011365 - 1983 - Isotopic and chemical composition of Parbati Valley geothermal discharges, north-west Himalaya, India","interactions":[],"lastModifiedDate":"2024-04-22T11:08:26.53762","indexId":"70011365","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1828,"text":"Geothermics","active":true,"publicationSubtype":{"id":10}},"title":"Isotopic and chemical composition of Parbati Valley geothermal discharges, north-west Himalaya, India","docAbstract":"The isotopic compositions of the waters discharged from Parbati Valley geothermal areas indicate a higher altitude meteoric origin, with discharge temperatures reflecting variations in the depth of penetration of the waters to levels heated by the existence of a ‘normal’ geothermal gradient. On the basis of mixing models involving silica, tritium, discharge temperatures and chloride contents, deep equilibration temperatures of 120–140°C were obtained for Manikaran, possibly reaching 160°C at even greater depth. Geothermometers based on sulfate-water 18O exchange and gas reactions point to similar temperatures. Exceptionally high helium contents of the discharges correspond to apparent crustal residence times of the waters in the order of 10–100 Ma; relative nitrogen-argon contents support a largely meteoric origin of the waters with a possible fossil brine, but no detectable magmatic component.
","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6505(83)90030-5","issn":"03756505","usgsCitation":"Giggenbach, W., Gonfiantini, R., Jangi, B., and Truesdell, A., 1983, Isotopic and chemical composition of Parbati Valley geothermal discharges, north-west Himalaya, India: Geothermics, v. 12, no. 2-3, p. 199-222, https://doi.org/10.1016/0375-6505(83)90030-5.","productDescription":"24 p.","startPage":"199","endPage":"222","numberOfPages":"24","costCenters":[],"links":[{"id":221170,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3f95e4b0c8380cd64621","contributors":{"authors":[{"text":"Giggenbach, W.F.","contributorId":33054,"corporation":false,"usgs":true,"family":"Giggenbach","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":360924,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gonfiantini, R.","contributorId":33055,"corporation":false,"usgs":true,"family":"Gonfiantini","given":"R.","email":"","affiliations":[],"preferred":false,"id":360925,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jangi, B.L.","contributorId":13375,"corporation":false,"usgs":true,"family":"Jangi","given":"B.L.","email":"","affiliations":[],"preferred":false,"id":360923,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Truesdell, A.H.","contributorId":52566,"corporation":false,"usgs":false,"family":"Truesdell","given":"A.H.","email":"","affiliations":[{"id":6672,"text":"former: USGS Southwest Biological Science Center, Colorado Plateau Research Station, Flagstaff, AZ. Current address: TN-SCORE, Univ of Tennessee, Knoxville, TN, e-mail: jennen@gmail.com","active":true,"usgs":false}],"preferred":false,"id":360926,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011372,"text":"70011372 - 1983 - On the reported optical activity of amino acids in the Murchison meteorite","interactions":[],"lastModifiedDate":"2012-03-12T17:18:30","indexId":"70011372","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"On the reported optical activity of amino acids in the Murchison meteorite","docAbstract":"In analyses of extracts from the Murchison meteorite (a carbonaceous chondrite), Engel and Nagy1 reported an excess of L-enantiomers for several protein amino acids but found that the non-protein amino acids were racemic. They suggested that the excess of L-isomers might have resulted from an asymmetric synthesis or decomposition. Their results disagree with those obtained previously2-4 and they claim this is due to improved methodology. In fact, their extraction method and analytical procedure (gas chromatography-mass spectrometry, GC-MS) was similar to those used in the original report2 of amino acids in the Murchison meteorite except that they used specific ion monitoring in the GC-MS measurements. We found the results of Engel and Nagy odd in that likely contaminants (the protein amino acids ala, leu, glu, asp and pro) were nonracemic while unlikely contaminants (isovaline and ??-amino-n-butyric acid) were racemic. For example, Engel and Nagy report that the leucine is ???90% L-enantiomer in the water-extracted sample whereas isovaline (??-methyl-??-aminobutyric acid) is racemic. It would be most unusual for an abiotic stereoselective decomposition or synthesis of amino acids to occur with protein amino acids but not with non-protein amino acids. We now show here that the explanation of terrestrial contamination is consistent with their results and is much more probable. ?? 1983 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/301494a0","issn":"00280836","usgsCitation":"Bada, J., Cronin, J., Ho, M., Kvenvolden, K., Lawless, J., Miller, S., Oro, J., and Steinberg, S., 1983, On the reported optical activity of amino acids in the Murchison meteorite: Nature, v. 301, no. 5900, p. 494-496, https://doi.org/10.1038/301494a0.","startPage":"494","endPage":"496","numberOfPages":"3","costCenters":[],"links":[{"id":205108,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/301494a0"},{"id":221287,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"301","issue":"5900","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6df8e4b0c8380cd75416","contributors":{"authors":[{"text":"Bada, J.L.","contributorId":96826,"corporation":false,"usgs":true,"family":"Bada","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":360948,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cronin, J.R.","contributorId":63946,"corporation":false,"usgs":true,"family":"Cronin","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":360945,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ho, M.-S.","contributorId":70539,"corporation":false,"usgs":true,"family":"Ho","given":"M.-S.","email":"","affiliations":[],"preferred":false,"id":360946,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kvenvolden, K.A.","contributorId":80674,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":360947,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lawless, J.G.","contributorId":97250,"corporation":false,"usgs":true,"family":"Lawless","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":360949,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Miller, S.L.","contributorId":60770,"corporation":false,"usgs":true,"family":"Miller","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":360944,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Oro, John","contributorId":21683,"corporation":false,"usgs":false,"family":"Oro","given":"John","email":"","affiliations":[{"id":33349,"text":"Department of Biophysical Science, University of Houston","active":true,"usgs":false}],"preferred":false,"id":360943,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Steinberg, S.","contributorId":8226,"corporation":false,"usgs":true,"family":"Steinberg","given":"S.","email":"","affiliations":[],"preferred":false,"id":360942,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70011375,"text":"70011375 - 1983 - New evidence for the age of the Gubik Formation Alaskan North Slope","interactions":[],"lastModifiedDate":"2013-01-26T15:54:58","indexId":"70011375","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"New evidence for the age of the Gubik Formation Alaskan North Slope","docAbstract":"At several Alaskan North Slope localities south of the shore of the Arctic Ocean the Gubik Formation, herein regarded as latest Pliocene and Pleistocene in age, contains a marine unit at its base. Near Ocean Point and near Teshekpuk Lake this basal unit, or the lowest exposed marine unit, of the Gubik contains unusual, relatively warm-water marine mammals. Although these mammals have poorly known fossil histories, consideration of what is known suggests that the basal marine unit near Ocean Point is of latest Pliocene age, between 2.2 and 1.7 my old, and that the marine unit near Teshekpuk Lake is probably late Pleistocene, most likely correlating with the Sangamon Interglaciation and about 120,000 yr old. ?? 1983.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0033-5894(83)90041-8","issn":"00335894","usgsCitation":"Repenning, C., 1983, New evidence for the age of the Gubik Formation Alaskan North Slope: Quaternary Research, v. 19, no. 3, p. 356-372, https://doi.org/10.1016/0033-5894(83)90041-8.","startPage":"356","endPage":"372","numberOfPages":"17","costCenters":[],"links":[{"id":266562,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0033-5894(83)90041-8"},{"id":221362,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"3","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a657be4b0c8380cd72be5","contributors":{"authors":[{"text":"Repenning, C.A.","contributorId":56700,"corporation":false,"usgs":true,"family":"Repenning","given":"C.A.","affiliations":[],"preferred":false,"id":360954,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011376,"text":"70011376 - 1983 - Requirements for modeling trace metal partitioning in oxidized estuarine sediments","interactions":[],"lastModifiedDate":"2020-01-26T09:45:22","indexId":"70011376","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2662,"text":"Marine Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Requirements for modeling trace metal partitioning in oxidized estuarine sediments","docAbstract":"The fate of particulate-bound metals is of particular importance in estuaries because major biological energy flows involve consumption of detrital particles. The biological impact of particulate-bound metals is strongly influenced by the partitioning of metals among sediment components at the oxidized sediment-water interface. Adequate methods for directly measuring this partitioning are not available, thus a modeling approach may be most useful. Important requirements for such a model include: (1) determinations of metal binding intensities which are comparable among sediment components important in oxidized sediments; (2) comparable determinations of the binding capacities of the several forms of each component; (3) operational determinations of the abundance in natural sediments of components of defined binding capacity; (4) assessments of the influence of particle coatings and multicomponent aggregation on the available binding capacity of each substrate; (5) consideration of the effect of Ca and Mg competition on binding to different components; and (6) determinations of the kinetics of metal redistribution among components in oxidized sediments.
","language":"English","publisher":"Elsevier","doi":"10.1016/0304-4203(83)90078-6","issn":"03044203","usgsCitation":"Luoma, S.N., and Davis, J., 1983, Requirements for modeling trace metal partitioning in oxidized estuarine sediments: Marine Chemistry, v. 12, no. 2-3, p. 159-181, https://doi.org/10.1016/0304-4203(83)90078-6.","productDescription":"23 p.","startPage":"159","endPage":"181","numberOfPages":"23","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":221363,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa90ce4b0c8380cd85bc0","contributors":{"authors":[{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":780292,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, J.A.","contributorId":71694,"corporation":false,"usgs":true,"family":"Davis","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":360955,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011377,"text":"70011377 - 1983 - Nitrate concentrations under irrigated agriculture","interactions":[],"lastModifiedDate":"2012-03-12T17:18:29","indexId":"70011377","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1539,"text":"Environmental Geology","active":true,"publicationSubtype":{"id":10}},"title":"Nitrate concentrations under irrigated agriculture","docAbstract":"In recent years, considerable interest has been expressed in the nitrate content of water supplies. The most notable toxic effect of nitrate is infant methemoglobinemia. The risk of this disease increases significantly at nitrate-nitrogen levels exceeding 10 mg/l. For this reason, this concentration has been established as a limit for drinking water in many countries. In natural waters, nitrate is a minor ionic constituent and seldom accounts for more than a few percent of the total anions. However, nitrate in a significant concentration may occur in the vicinity of some point sources such as septic tanks, manure pits, and waste-disposal sites. Non-point sources contributing to groundwater pollution are numerous and a majority of them are related to agricultural activities. The largest single anthropogenic input of nitrate into the groundwater is fertilizer. Even though it has not been proven that nitrogen fertilizers are responsible for much of nitrate pollution, they are generally recognized as the main threat to groundwater quality, especially when inefficiently applied to irrigated fields on sandy soils. The biggest challenge facing today's agriculture is to maintain the balance between the enhancement of crop productivity and the risk of groundwater pollution. ?? 1982 Springer-Verlag New York Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF02381299","issn":"09430105","usgsCitation":"Zaporozec, A., 1983, Nitrate concentrations under irrigated agriculture: Environmental Geology, v. 5, no. 1, p. 35-38, https://doi.org/10.1007/BF02381299.","startPage":"35","endPage":"38","numberOfPages":"4","costCenters":[],"links":[{"id":221441,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":205122,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF02381299"}],"volume":"5","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6671e4b0c8380cd72de9","contributors":{"authors":[{"text":"Zaporozec, A.","contributorId":24093,"corporation":false,"usgs":true,"family":"Zaporozec","given":"A.","email":"","affiliations":[],"preferred":false,"id":360957,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011384,"text":"70011384 - 1983 - In situ capture gamma-ray analysis of coal in an oversize borehole","interactions":[],"lastModifiedDate":"2013-03-06T19:19:57","indexId":"70011384","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2907,"text":"Nuclear Instruments and Methods In Physics Research","active":true,"publicationSubtype":{"id":10}},"title":"In situ capture gamma-ray analysis of coal in an oversize borehole","docAbstract":"In situ capture gamma-ray analysis in a coal seam using a high resolution gamma-ray spectrometer in a close-fitting borehole has been reported previously. In order to check the accuracy of the method under adverse conditions, similar measurements were made by means of a small-diameter sonde in an oversize borehole in the Pittsburgh seam, Greene County, Pennsylvania. The hole was 5 times the diameter of the sonde, a ratio that substantially increased the contribution of water (hydrogen) to the total spectral count and reduced the size of the sample measured by the detector. The total natural count, the 40K,count, and the intensities of capture gamma rays from Si, Ca, H, and Al were determined as a function of depth above, through, and below the coal seam. From these logs, the depth and width of the coal seam and its partings were determined. Spectra were accumulated in the seam for 1 h periods by using neutron sources of different strengths. From the spectra obtained by means of several 252Cf neutron sources of different sizes, the ultimate elemental analysis and ash content were determined. The results were not as good as those obtained previously in a close-fitting borehole. However, the results did improve with successively larger source-to-detector distances, i.e.,as the count contribution due to hydrogen in the water decreased. It was concluded that in situ borehole analyses should be made in relatively close-fitting boreholes. ?? 1983.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nuclear Instruments and Methods In Physics Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0167-5087(83)90494-5","issn":"01675087","usgsCitation":"Mikesell, J., Dotson, D., Senftle, F.E., Zych, R., Koger, J., and Goldman, L., 1983, In situ capture gamma-ray analysis of coal in an oversize borehole: Nuclear Instruments and Methods In Physics Research, v. 215, no. 3, p. 561-566, https://doi.org/10.1016/0167-5087(83)90494-5.","startPage":"561","endPage":"566","numberOfPages":"6","costCenters":[],"links":[{"id":221522,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":268839,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0167-5087(83)90494-5"}],"volume":"215","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a399be4b0c8380cd61997","contributors":{"authors":[{"text":"Mikesell, J.L.","contributorId":46113,"corporation":false,"usgs":true,"family":"Mikesell","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":360974,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dotson, D.W.","contributorId":15345,"corporation":false,"usgs":true,"family":"Dotson","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":360972,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Senftle, F. E.","contributorId":47788,"corporation":false,"usgs":true,"family":"Senftle","given":"F.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":360975,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zych, R.S.","contributorId":84504,"corporation":false,"usgs":true,"family":"Zych","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":360976,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Koger, J.","contributorId":29569,"corporation":false,"usgs":true,"family":"Koger","given":"J.","email":"","affiliations":[],"preferred":false,"id":360973,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Goldman, L.","contributorId":93630,"corporation":false,"usgs":true,"family":"Goldman","given":"L.","email":"","affiliations":[],"preferred":false,"id":360977,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70011386,"text":"70011386 - 1983 - Ground-water models for water resource planning","interactions":[],"lastModifiedDate":"2012-03-12T17:19:10","indexId":"70011386","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1746,"text":"GeoJournal","active":true,"publicationSubtype":{"id":10}},"title":"Ground-water models for water resource planning","docAbstract":"In the past decade hydrogeologists have emphasized the development of computer-based mathematical models to aid in the understanding of flow, the transport of solutes, transport of heat, and deformation in the ground-water system. These models have been used to provide information and predictions for water managers. Too frequently, ground-water was neglected in water resource planning because managers believed that it could not be adequately evaluated in terms of availability, quality, and effect of development on surface-water supplies. Now, however, with newly developed digital ground-water models, effects of development can be predicted. Such models have been used to predict hydrologic and quality changes under different stresses. These models have grown in complexity over the last ten years from simple one-layer models to three-dimensional simulations of ground-water flow, which may include solute transport, heat transport, effects of land subsidence, and encroachment of saltwater. Case histories illustrate how predictive ground-water models have provided the information needed for the sound planning and management of water resources in the USA. ?? 1983 D. Reidel Publishing Company.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GeoJournal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00194492","issn":"03432521","usgsCitation":"Moore, J., 1983, Ground-water models for water resource planning: GeoJournal, v. 7, no. 5, p. 453-458, https://doi.org/10.1007/BF00194492.","startPage":"453","endPage":"458","numberOfPages":"6","costCenters":[],"links":[{"id":205128,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00194492"},{"id":221582,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2c91e4b0c8380cd5bd02","contributors":{"authors":[{"text":"Moore, J.E.","contributorId":34927,"corporation":false,"usgs":true,"family":"Moore","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":360980,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}