{"pageNumber":"1235","pageRowStart":"30850","pageSize":"25","recordCount":46734,"records":[{"id":70021080,"text":"70021080 - 1998 - High-resolution Monte Carlo simulation of flow and conservative transport in heterogeneous porous media: 2. Transport results","interactions":[],"lastModifiedDate":"2018-03-16T09:52:49","indexId":"70021080","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"High-resolution Monte Carlo simulation of flow and conservative transport in heterogeneous porous media: 2. Transport results","docAbstract":"<p><span>In this, the second of two papers concerned with the use of numerical simulation to examine flow and transport parameters in heterogeneous porous media via Monte Carlo methods, results from the transport aspect of these simulations are reported on. Transport simulations contained herein assume a finite pulse input of conservative tracer, and the numerical technique endeavors to realistically simulate tracer spreading as the cloud moves through a heterogeneous medium. Medium heterogeneity is limited to the hydraulic conductivity field, and generation of this field assumes that the hydraulic-conductivity process is second-order stationary. Methods of estimating cloud moments, and the interpretation of these moments, are discussed. Techniques for estimation of large-time macrodispersivities from cloud second-moment data, and for the approximation of the standard errors associated with these macrodispersivities, are also presented. These moment and macrodispersivity estimation techniques were applied to tracer clouds resulting from transport scenarios generated by specific Monte Carlo simulations. Where feasible, moments and macrodispersivities resulting from the Monte Carlo simulations are compared with first- and second-order perturbation analyses. Some limited results concerning the possible ergodic nature of these simulations, and the presence of non-Gaussian behavior of the mean cloud, are reported on as well.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/97WR02711","usgsCitation":"Naff, R., Haley, D., and Sudicky, E., 1998, High-resolution Monte Carlo simulation of flow and conservative transport in heterogeneous porous media: 2. Transport results: Water Resources Research, v. 34, no. 4, p. 679-697, https://doi.org/10.1029/97WR02711.","productDescription":"19 p.","startPage":"679","endPage":"697","costCenters":[],"links":[{"id":229695,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a30fae4b0c8380cd5db16","contributors":{"authors":[{"text":"Naff, R.L.","contributorId":86349,"corporation":false,"usgs":true,"family":"Naff","given":"R.L.","affiliations":[],"preferred":false,"id":388586,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haley, D.F.","contributorId":68480,"corporation":false,"usgs":true,"family":"Haley","given":"D.F.","email":"","affiliations":[],"preferred":false,"id":388585,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sudicky, E.A.","contributorId":67237,"corporation":false,"usgs":true,"family":"Sudicky","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":388584,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020339,"text":"70020339 - 1998 - A comparison of methods for deriving solute flux rates using long-term data from streams in the mirror lake watershed","interactions":[],"lastModifiedDate":"2012-03-12T17:19:44","indexId":"70020339","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"A comparison of methods for deriving solute flux rates using long-term data from streams in the mirror lake watershed","docAbstract":"Calculation of chemical flux rates for streams requires integration of continuous measurements of discharge with discrete measurements of solute concentrations. We compared two commonly used methods for interpolating chemistry data (time-averaging and flow-weighting) to determine whether discrepancies between the two methods were large relative to other sources of error in estimating flux rates. Flux rates of dissolved Si and SO42- were calculated from 10 years of data (1981-1990) for the NW inlet and Outlet of Mirror Lake and for a 40-day period (March 22 to April 30, 1993) during which we augmented our routine (weekly) chemical monitoring with collection of daily samples. The time-averaging method yielded higher estimates of solute flux during high-flow periods if no chemistry samples were collected corresponding to peak discharge. Concentration-discharge relationships should be used to interpolate stream chemistry during changing flow conditions if chemical changes are large. Caution should be used in choosing the appropriate time-scale over which data are pooled to derive the concentration-discharge regressions because the model parameters (slope and intercept) were found to be sensitive to seasonal and inter-annual variation. Both methods approximated solute flux to within 2-10% for a range of solutes that were monitored during the intensive sampling period. Our results suggest that errors arising from interpolation of stream chemistry data are small compared with other sources of error in developing watershed mass balances.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water, Air, and Soil Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Kluwer Academic Publishers","publisherLocation":"Dordrecht, Netherlands","doi":"10.1023/A:1005018030515","issn":"00496979","usgsCitation":"Bukaveckas, P., Likens, G., Winter, T.C., and Buso, D., 1998, A comparison of methods for deriving solute flux rates using long-term data from streams in the mirror lake watershed: Water, Air, & Soil Pollution, v. 105, no. 1-2, p. 277-293, https://doi.org/10.1023/A:1005018030515.","startPage":"277","endPage":"293","numberOfPages":"17","costCenters":[],"links":[{"id":231014,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206865,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1005018030515"}],"volume":"105","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e36ce4b0c8380cd45fe8","contributors":{"authors":[{"text":"Bukaveckas, P.A.","contributorId":87322,"corporation":false,"usgs":true,"family":"Bukaveckas","given":"P.A.","affiliations":[],"preferred":false,"id":385882,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Likens, G.E.","contributorId":68893,"corporation":false,"usgs":true,"family":"Likens","given":"G.E.","email":"","affiliations":[],"preferred":false,"id":385881,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Winter, T. C.","contributorId":23485,"corporation":false,"usgs":true,"family":"Winter","given":"T.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":385879,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Buso, D.C.","contributorId":31392,"corporation":false,"usgs":true,"family":"Buso","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":385880,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020336,"text":"70020336 - 1998 - A controlled experiment in ground water flow model calibration","interactions":[],"lastModifiedDate":"2024-03-07T12:28:36.028346","indexId":"70020336","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"A controlled experiment in ground water flow model calibration","docAbstract":"<div class=\"abstract-group \"><div class=\"article-section__content en main\"><p>Nonlinear regression was introduced to ground water modeling in the 1970s, but has been used very little to calibrate numerical models of complicated ground water systems. Apparently, nonlinear regression is thought by many to be incapable of addressing such complex problems. With what we believe to be the most complicated synthetic test case used for such a study, this work investigates using nonlinear regression in ground water model calibration. Results of the study fall into two categories. First, the study demonstrates how systematic use of a well designed nonlinear regression method can indicate the importance of different types of data and can lead to successive improvement of models and their parameterizations. Our method differs from previous methods presented in the ground water literature in that (1) weighting is more closely related to expected data errors than is usually the case; (2) defined diagnostic statistics allow for more effective evaluation of the available data, the model, and their interaction; and (3) prior information is used more cautiously. Second, our results challenge some commonly held beliefs about model calibration. For the test case considered, we show that (1) field measured values of hydraulic conductivity are not as directly applicable to models as their use in some geostatistical methods imply; (2) a unique model does not necessarily need to be identified to obtain accurate predictions; and (3) in the absence of obvious model bias, model error was normally distributed. The complexity of the test case involved implies that the methods used and conclusions drawn are likely to be powerful in practice.</p></div></div>","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1998.tb02824.x","issn":"0017467X","usgsCitation":"Hill, M.C., Cooley, R., and Pollock, D., 1998, A controlled experiment in ground water flow model calibration: Groundwater, v. 36, no. 3, p. 520-535, https://doi.org/10.1111/j.1745-6584.1998.tb02824.x.","productDescription":"16 p.","startPage":"520","endPage":"535","numberOfPages":"16","costCenters":[],"links":[{"id":230935,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"3","noUsgsAuthors":false,"publicationDate":"2005-12-23","publicationStatus":"PW","scienceBaseUri":"5059e39ae4b0c8380cd46110","contributors":{"authors":[{"text":"Hill, M. C.","contributorId":48993,"corporation":false,"usgs":true,"family":"Hill","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":385873,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cooley, R.L.","contributorId":9272,"corporation":false,"usgs":true,"family":"Cooley","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":385871,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pollock, D.W.","contributorId":30967,"corporation":false,"usgs":true,"family":"Pollock","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":385872,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020865,"text":"70020865 - 1998 - Fuel models and fire potential from satellite and surface observations","interactions":[],"lastModifiedDate":"2024-03-19T17:57:22.64617","indexId":"70020865","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2083,"text":"International Journal of Wildland Fire","active":true,"publicationSubtype":{"id":10}},"title":"Fuel models and fire potential from satellite and surface observations","docAbstract":"A national 1-km resolution fire danger fuel model map was derived through use of previously mapped land cover classes and ecoregions, and extensive ground sample data, then refined through review by fire managers familiar with various portions of the U.S. The fuel model map will be used in the next generation fire danger rating system for the U.S., but it also made possible immediate development of a satellite and ground based fire potential index map. The inputs and algorithm of the fire potential index are presented, along with a case study of the correlation between the fire potential index and fire occurrence in California and Nevada. Application of the fire potential index in the Mediterranean ecosystems of Spain, Chile, and Mexico will be tested.","language":"English","publisher":"CSIRO","doi":"10.1071/WF9980159","issn":"10498001","usgsCitation":"Burgan, R., Klaver, R., and Klaver, J., 1998, Fuel models and fire potential from satellite and surface observations: International Journal of Wildland Fire, v. 8, no. 3, p. 159-170, https://doi.org/10.1071/WF9980159.","productDescription":"12 p.","startPage":"159","endPage":"170","numberOfPages":"12","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":229642,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a140ae4b0c8380cd5489c","contributors":{"authors":[{"text":"Burgan, R.E.","contributorId":9999,"corporation":false,"usgs":true,"family":"Burgan","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":387810,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Klaver, R. W. 0000-0002-3263-9701","orcid":"https://orcid.org/0000-0002-3263-9701","contributorId":50267,"corporation":false,"usgs":true,"family":"Klaver","given":"R. W.","affiliations":[],"preferred":false,"id":387811,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Klaver, J.M.","contributorId":207639,"corporation":false,"usgs":false,"family":"Klaver","given":"J.M.","email":"","affiliations":[{"id":37574,"text":"EMR group, Aachen University, Germany","active":true,"usgs":false}],"preferred":false,"id":896898,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70021081,"text":"70021081 - 1998 - Rate of strontium sorption and the effects of variable aqueous concentrations of sodium and potassium on strontium distribution coefficients of a surficial sediment at the Idaho National Engineering Laboratory, Idaho","interactions":[],"lastModifiedDate":"2012-03-12T17:19:39","indexId":"70021081","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"Rate of strontium sorption and the effects of variable aqueous concentrations of sodium and potassium on strontium distribution coefficients of a surficial sediment at the Idaho National Engineering Laboratory, Idaho","docAbstract":"The rate of strontium sorption and the effects of variable aqueous concentrations of sodium and potassium on strontium sorption were measured as part of an investigation to determine strontium chemical transport properties of a surficial sediment at the Idaho National Engineering Laboratory (INEL), Idaho. Batch experimental techniques were used to determine the rate of strontium sorption and strontium distribution coefficients (K(d)s) between aqueous and solid phases. Rate experiments indicate that strontium in solution reached an apparent equilibrium with the sediment in 26 h. K(d)s were derived using the linear isotherm model at initial sodium concentrations from 100 to 5,000 mg/l and initial potassium concentrations from 2 to 150 mg/l. K(d)s ranged from 56 ?? 2 to 62 ?? 3 ml/g at initial aqueous concentrations of sodium and potassium equal to or less than 300 and 150 mg/l, respectively. K(d)s hinged from 4.7 ?? 0.2 to 19 ?? 1 ml/g with initial aqueous concentrations of sodium between 1,000 and 5,000 mg/l. These data indicate that sodium concentrations greater than 300 mg/l in wastewater increase the availability of strontium for transport beneath waste disposal ponds at the INEL by decreasing strontium sorption on the surficial sediment. Wastewater concentrations of sodium and potassium less than 300 and 150 mg/l, respectively, have little effect on the availability of strontium for transport.The rate of strontium sorption and the effects of variable aqueous concentrations of sodium and potassium on strontium sorption were measured as part of an investigation to determine strontium chemical transport properties of a surficial sediment at the Idaho National Engineering Laboratory (INEL), Idaho. Batch experimental techniques were used to determine the rate of strontium sorption and strontium distribution coefficients (Kds) between aqueous and solid phases. Rate experiments indicate that strontium in solution reached an apparent equilibrium with the sediment in 26 h. Kds were derived using the linear isotherm model at initial sodium concentrations from 100 to 5,000 mg/l and initial potassium concentrations from 2 to 150 mg/l. Kds ranged from 56??2 to 62??3 ml/g at initial aqueous concentrations of sodium and potassium equal to or less than 300 and 150 mg/l, respectively. Kds ranged from 4.7??0.2 to 19??1 ml/g with initial aqueous concentrations of sodium between 1,000 and 5,000 mg/l. These data indicate that sodium concentrations greater than 300 mg/l in wastewater increase the availability of strontium for transport beneath waste disposal ponds at the INEL by decreasing strontium sorption on the surficial sediment. Wastewater concentrations of sodium and potassium less than 300 and 150 mg/l, respectively, have little effect on the availability of strontium for transport.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer-Verlag GmbH & Company KG","publisherLocation":"Berlin, Germany","doi":"10.1007/s002540050264","issn":"09430105","usgsCitation":"Bunde, R., Rosentreter, J., and Liszewski, M.J., 1998, Rate of strontium sorption and the effects of variable aqueous concentrations of sodium and potassium on strontium distribution coefficients of a surficial sediment at the Idaho National Engineering Laboratory, Idaho: Environmental Geology, v. 34, no. 2-3, p. 135-142, https://doi.org/10.1007/s002540050264.","startPage":"135","endPage":"142","numberOfPages":"8","costCenters":[],"links":[{"id":229733,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206430,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s002540050264"}],"volume":"34","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a953ae4b0c8380cd818a0","contributors":{"authors":[{"text":"Bunde, R.L.","contributorId":35885,"corporation":false,"usgs":true,"family":"Bunde","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":388588,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosentreter, J.J.","contributorId":24394,"corporation":false,"usgs":true,"family":"Rosentreter","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":388587,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Liszewski, M. J.","contributorId":107308,"corporation":false,"usgs":true,"family":"Liszewski","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":388589,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020207,"text":"70020207 - 1998 - Nonlinear refraction and reflection travel time tomography","interactions":[],"lastModifiedDate":"2018-02-16T13:20:13","indexId":"70020207","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"Nonlinear refraction and reflection travel time tomography","docAbstract":"We develop a rapid nonlinear travel time tomography method that simultaneously inverts refraction and reflection travel times on a regular velocity grid. For travel time and ray path calculations, we apply a wave front method employing graph theory. The first-arrival refraction travel times are calculated on the basis of cell velocities, and the later refraction and reflection travel times are computed using both cell velocities and given interfaces. We solve a regularized nonlinear inverse problem. A Laplacian operator is applied to regularize the model parameters (cell slownesses and reflector geometry) so that the inverse problem is valid for a continuum. The travel times are also regularized such that we invert travel time curves rather than travel time points. A conjugate gradient method is applied to minimize the nonlinear objective function. After obtaining a solution, we perform nonlinear Monte Carlo inversions for uncertainty analysis and compute the posterior model covariance. In numerical experiments, we demonstrate that combining the first arrival refraction travel times with later reflection travel times can better reconstruct the velocity field as well as the reflector geometry. This combination is particularly important for modeling crustal structures where large velocity variations occur in the upper crust. We apply this approach to model the crustal structure of the California Borderland using ocean bottom seismometer and land data collected during the Los Angeles Region Seismic Experiment along two marine survey lines. Details of our image include a high-velocity zone under the Catalina Ridge, but a smooth gradient zone between. Catalina Ridge and San Clemente Ridge. The Moho depth is about 22 km with lateral variations. Copyright 1998 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":"10.1029/98JB01981","issn":"01480227","usgsCitation":"Zhang, J., ten Brink, U., and Toksoz, M., 1998, Nonlinear refraction and reflection travel time tomography: Journal of Geophysical Research B: Solid Earth, v. 103, no. B12, p. 29743-29757, https://doi.org/10.1029/98JB01981.","startPage":"29743","endPage":"29757","numberOfPages":"15","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":479771,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/98jb01981","text":"Publisher Index Page"},{"id":230968,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":295333,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/98JB01981"}],"volume":"103","issue":"B12","noUsgsAuthors":false,"publicationDate":"1998-12-10","publicationStatus":"PW","scienceBaseUri":"505a678ce4b0c8380cd733b5","contributors":{"authors":[{"text":"Zhang, Jiahua","contributorId":35479,"corporation":false,"usgs":true,"family":"Zhang","given":"Jiahua","email":"","affiliations":[],"preferred":false,"id":385396,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"ten Brink, Uri S. 0000-0001-6858-3001 utenbrink@usgs.gov","orcid":"https://orcid.org/0000-0001-6858-3001","contributorId":127560,"corporation":false,"usgs":true,"family":"ten Brink","given":"Uri S.","email":"utenbrink@usgs.gov","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":385397,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Toksoz, M.N.","contributorId":10579,"corporation":false,"usgs":true,"family":"Toksoz","given":"M.N.","email":"","affiliations":[],"preferred":false,"id":385395,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020442,"text":"70020442 - 1998 - Ice sheet history from Antarctic Continental Margin sediments: The ANTOSTRAT approach","interactions":[],"lastModifiedDate":"2020-06-08T20:58:53.42854","indexId":"70020442","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3530,"text":"Terra Antarctica","active":true,"publicationSubtype":{"id":10}},"title":"Ice sheet history from Antarctic Continental Margin sediments: The ANTOSTRAT approach","docAbstract":"The Antarctic Ice Sheet is today an important part of the global climate engine, and probably has been so for most of its long existence. However, the details of its history are poorly known, despite the measurement and use, over two decades, of low-latitude proxies of ice sheet volume. An additional way of determining ice sheet history is now available, based on understanding terrigenous sediment transport and deposition under a glacial regime. It requires direct sampling of the prograded wedge of glacial sediments deposited at the Antarctic continental margin (and of derived sediments on the continental rise) at a small number of key sites, and combines the resulting data using numerical models of ice sheet development. The new phase of sampling is embodied mainly in a suite of proposals to the Ocean Drilling Program, generated by separate regional proponent groups co-ordinated through ANTOSTRAT (the Antarctic Offshore Acoustic Stratigraphy initiative). The first set of margin sites has now been drilled as ODP Leg 178 to the Antarctic Peninsula margin, and a first, short season of inshore drilling at Cape Roberts, Ross Sea, has been completed. Leg 178 and Cape Roberts drilling results are described briefly here, together with an outline of key elements of the overall strategy for determining glacial history, and of the potential contributions of drilling other Antarctic margins investigated by ANTOSTRAT. ODP Leg 178 also recovered continuous ultra-high-resolution Holocene biogenic sections at two sites within a protected, glacially-overdeepened basin (Palmer Deep) on the inner continental shelf of the Antarctic Peninsula. These and similar sites from around the Antarctic margin are a valuable resource when linked with ice cores and equivalent sections at lower latitude sites for studies of decadal and millenial-scale climate variation.","language":"English","issn":"11228628","usgsCitation":"Barker, P., Barrett, P.J., Camerlenghi, A., Cooper, A.K., Davey, F., Domack, E., Escutia, C., Kristoffersen, Y., and O’Brien, P.E., 1998, Ice sheet history from Antarctic Continental Margin sediments: The ANTOSTRAT approach: Terra Antarctica, v. 5, no. 4, p. 737-760.","productDescription":"24 p.","startPage":"737","endPage":"760","numberOfPages":"24","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":231371,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a37e8e4b0c8380cd61285","contributors":{"authors":[{"text":"Barker, P.F.","contributorId":72954,"corporation":false,"usgs":true,"family":"Barker","given":"P.F.","email":"","affiliations":[],"preferred":false,"id":386237,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barrett, P. J.","contributorId":96347,"corporation":false,"usgs":false,"family":"Barrett","given":"P.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":386240,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Camerlenghi, Angelo","contributorId":7450,"corporation":false,"usgs":true,"family":"Camerlenghi","given":"Angelo","email":"","affiliations":[],"preferred":false,"id":386233,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cooper, Alan K. acooper@usgs.gov","contributorId":2854,"corporation":false,"usgs":true,"family":"Cooper","given":"Alan","email":"acooper@usgs.gov","middleInitial":"K.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":386236,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Davey, F.J.","contributorId":99152,"corporation":false,"usgs":true,"family":"Davey","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":386241,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Domack, E.W.","contributorId":19626,"corporation":false,"usgs":true,"family":"Domack","given":"E.W.","affiliations":[],"preferred":false,"id":386234,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Escutia, C.","contributorId":88514,"corporation":false,"usgs":true,"family":"Escutia","given":"C.","affiliations":[],"preferred":false,"id":386238,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kristoffersen, Y.","contributorId":29986,"corporation":false,"usgs":true,"family":"Kristoffersen","given":"Y.","email":"","affiliations":[],"preferred":false,"id":386235,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"O’Brien, P. E.","contributorId":91271,"corporation":false,"usgs":false,"family":"O’Brien","given":"P.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":386239,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70020872,"text":"70020872 - 1998 - A hybrid optimization approach to the estimation of distributed parameters in two-dimensional confined aquifers","interactions":[],"lastModifiedDate":"2024-05-24T11:28:54.58806","indexId":"70020872","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"A hybrid optimization approach to the estimation of distributed parameters in two-dimensional confined aquifers","docAbstract":"<div class=\"abstract-group \"><div class=\"article-section__content en main\"><p><strong>ABSTRACT:<span>&nbsp;</span></strong>In using non-linear optimization techniques for estimation of parameters in a distributed ground water model, the initial values of the parameters and prior information about them play important roles. In this paper, the genetic algorithm (GA) is combined with the truncated-Newton search technique to estimate groundwater parameters for a confined steady-state ground water model. Use of prior information about the parameters is shown to be important in estimating correct or near-correct values of parameters on a regional scale. The amount of prior information needed for an accurate solution is estimated by evaluation of the sensitivity of the performance function to the parameters. For the example presented here, it is experimentally demonstrated that only one piece of prior information of the least sensitive parameter is sufficient to arrive at the global or near-global optimum solution. For hydraulic head data with measurement errors, the error in the estimation of parameters increases as the standard deviation of the errors increases. Results from our experiments show that, in general, the accuracy of the estimated parameters depends on the level of noise in the hydraulic head data and the initial values used in the truncated-Newton search technique.</p></div></div>","language":"English","publisher":"American Water Resources Association","doi":"10.1111/j.1752-1688.1998.tb01525.x","issn":"1093474X","usgsCitation":"Heidari, M., and Ranjithan, S., 1998, A hybrid optimization approach to the estimation of distributed parameters in two-dimensional confined aquifers: Journal of the American Water Resources Association, v. 34, no. 4, p. 909-920, https://doi.org/10.1111/j.1752-1688.1998.tb01525.x.","productDescription":"12 p.","startPage":"909","endPage":"920","numberOfPages":"12","costCenters":[],"links":[{"id":229799,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-06-08","publicationStatus":"PW","scienceBaseUri":"5059e426e4b0c8380cd46447","contributors":{"authors":[{"text":"Heidari, M.","contributorId":26430,"corporation":false,"usgs":true,"family":"Heidari","given":"M.","email":"","affiliations":[],"preferred":false,"id":387838,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ranjithan, S.R.","contributorId":82877,"corporation":false,"usgs":true,"family":"Ranjithan","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":387839,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020407,"text":"70020407 - 1998 - Upper crustal structure and Neogene tectonic development of the California continental borderland","interactions":[],"lastModifiedDate":"2023-12-20T23:57:34.611868","indexId":"70020407","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"Upper crustal structure and Neogene tectonic development of the California continental borderland","docAbstract":"<div id=\"15009176\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Multichannel seismic-reflection data, sonobuoy seismic-refraction data, and regional geology are used to define the upper crustal structure of the southern California continental borderland and to delineate the characteristics of the main lithotectonic belts of the region. The Catalina Schist belt is separated on its west side from the gently deformed Nicolas forearc belt by faults that have steep west dips and pronounced normal separations. On its east side the schist belt is bounded by a large detachment fault that dips gently to the east beneath the west edge of the Peninsular Ranges belt at the coastline near Oceanside. The Catalina Schist was uplifted from middle crustal depths and exposed during a major event of extensional tectonism that started in early Miocene time in conjunction with about 10° of clockwise rotation of the western Transverse Ranges belt. Part of the uplift of the Catalina Schist could have occurred on the detachment fault, but it is thought to have mostly occurred on the steep faults that bound the west edge of the schist belt. A large amount of uplift is required, and it probably involved strong footwall flexural deformation in the wake of the translating and rotating western Transverse Ranges and Nicolas forearc belts. Extension, accompanied by probable large amounts of right slip, continued in the borderland region during and after middle Miocene time. The later stage of extension was accompanied by rapid clockwise rotation of the western Transverse Ranges of at least 90°. Most of the borderland, including the belt of schist that was uplifted in early Miocene time, was further deformed into numerous basins and ridges during this stage of oblique extension. The primary driving force for the deformation is thought to have been derived from the rapid northwest motion of the Pacific plate after it had become coupled to the Farallon plate system, which had previously been subducted beneath the borderland.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1998)110<0779:UCSANT>2.3.CO;2","issn":"00167606","usgsCitation":"Bohannon, R.G., and Geist, E., 1998, Upper crustal structure and Neogene tectonic development of the California continental borderland: Geological Society of America Bulletin, v. 110, no. 6, p. 779-800, https://doi.org/10.1130/0016-7606(1998)110<0779:UCSANT>2.3.CO;2.","productDescription":"22 p.","startPage":"779","endPage":"800","numberOfPages":"22","costCenters":[],"links":[{"id":231484,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"110","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbd52e4b08c986b328f79","contributors":{"authors":[{"text":"Bohannon, R. G.","contributorId":61808,"corporation":false,"usgs":true,"family":"Bohannon","given":"R.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":386126,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Geist, E.","contributorId":47535,"corporation":false,"usgs":true,"family":"Geist","given":"E.","email":"","affiliations":[],"preferred":false,"id":386125,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70021082,"text":"70021082 - 1998 - A decision support model to assess vulnerability to salt water intrusion in the great bend prairie aquifer of Kansas","interactions":[],"lastModifiedDate":"2024-03-07T11:54:38.695071","indexId":"70021082","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"A decision support model to assess vulnerability to salt water intrusion in the great bend prairie aquifer of Kansas","docAbstract":"<div class=\"abstract-group \"><div class=\"article-section__content en main\"><p>A relatively simple ground water decision support system (DSS) was developed to assist in identifying salt-water vulnerable areas and in developing management policies to prevent salt-water intrusion in central Kansas. The DSS is based on a combination of numerical modeling sensitivity analyses, multiple regression analyses, and classification procedures derived from our knowledge of the area. Six ground water salinity models are proposed to evaluate irrigation well permit applications. The choice of model depends on the availability of site-specific data. The DSS takes advantage of GIS database management procedures, and is applied to an actual salt-water intrusion problem site in south-central Kansas. This approach can help local ground water management districts make better decisions on protecting ground water use in salt water vulnerable areas.</p></div></div>","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1998.tb02819.x","issn":"0017467X","usgsCitation":"Sophocleous, M., and Ma, T., 1998, A decision support model to assess vulnerability to salt water intrusion in the great bend prairie aquifer of Kansas: Groundwater, v. 36, no. 3, p. 476-483, https://doi.org/10.1111/j.1745-6584.1998.tb02819.x.","productDescription":"8 p.","startPage":"476","endPage":"483","numberOfPages":"8","costCenters":[],"links":[{"id":229734,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"3","noUsgsAuthors":false,"publicationDate":"2005-12-23","publicationStatus":"PW","scienceBaseUri":"5059e3aae4b0c8380cd4616f","contributors":{"authors":[{"text":"Sophocleous, M.","contributorId":13373,"corporation":false,"usgs":true,"family":"Sophocleous","given":"M.","email":"","affiliations":[],"preferred":false,"id":388590,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ma, T.","contributorId":33870,"corporation":false,"usgs":true,"family":"Ma","given":"T.","email":"","affiliations":[],"preferred":false,"id":388591,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020965,"text":"70020965 - 1998 - Geographic, temporal, and age-specific variation in diets of Glaucous Gulls in western Alaska","interactions":[],"lastModifiedDate":"2023-11-22T21:34:02.264561","indexId":"70020965","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"Geographic, temporal, and age-specific variation in diets of Glaucous Gulls in western Alaska","docAbstract":"We collected boluses and food remains of adult Glaucous Gulls (Larus hyperboreus) at or near nests and chicks, and digestive tracts from adults at three sites on the Yukon-Kuskokwim Delta, Alaska that differed in proximity to marine and terrestrial foods. We observed both geographic and temporal variation in diet; gulls consumed proportionately more terrestrial prey after peak hatch in late June, and gulls near the coast consumed proportionately more marine prey than gulls at two inland areas. Goslings occurred in > 60% of all samples from these inland areas. We compared these data to those from a previous study in western Alaska and found no marked differences. Evidence for similar patterns of geographic and temporal variation in diet was found using measurements of stable-carbon and nitrogen isotopes in gull and prey tissues. Stable isotope analysis further revealed that adult gulls consumed proportionately more marine prey (saffron cod, Eleginus gracilis) than they fed to their young. Using isotopic models, we estimated that 7-22% and 10-23% of the diet of adult and juvenile Glaucous Gulls, respectively, was comprised of terrestrial species. In addition to significant age-related variation, dietary estimates varied among geographic areas and between pre- and post-hatch periods. Overall, our isotopic estimates of the contribution of terrestrial prey to the diet of Glaucous Gulls was less than what may be inferred from conventional methods of diet analysis. Our study emphasizes the benefit of combining stable-isotope and conventional analyses to infer temporal and geographic changes in diet of wild birds and other organisms.","language":"English","publisher":"Oxford Academic","doi":"10.2307/1369903","issn":"00105422","usgsCitation":"Schmutz, J.A., and Hobson, K., 1998, Geographic, temporal, and age-specific variation in diets of Glaucous Gulls in western Alaska: Condor, v. 100, no. 1, p. 119-130, https://doi.org/10.2307/1369903.","productDescription":"12 p.","startPage":"119","endPage":"130","numberOfPages":"12","costCenters":[],"links":[{"id":503079,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://digitalcommons.usf.edu/condor/vol100/iss1/13","text":"External Repository"},{"id":229726,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"100","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a178fe4b0c8380cd55544","contributors":{"authors":[{"text":"Schmutz, Joel A. 0000-0002-6516-0836 jschmutz@usgs.gov","orcid":"https://orcid.org/0000-0002-6516-0836","contributorId":1805,"corporation":false,"usgs":true,"family":"Schmutz","given":"Joel","email":"jschmutz@usgs.gov","middleInitial":"A.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":388133,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hobson, K.A.","contributorId":23248,"corporation":false,"usgs":true,"family":"Hobson","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":388134,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020484,"text":"70020484 - 1998 - ASTER preflight and inflight calibration and the validation of level 2 products","interactions":[],"lastModifiedDate":"2024-01-25T17:20:09.627682","indexId":"70020484","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1944,"text":"IEEE Transactions on Geoscience and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"ASTER preflight and inflight calibration and the validation of level 2 products","docAbstract":"<p><span>Describes the preflight and inflight calibration approaches used for the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). The system is a multispectral, high-spatial resolution sensor on the Earth Observing System's EOS-AM1 platform. Preflight calibration of ASTER uses well-characterized sources to provide calibration and preflight round-robin exercises to understand biases between the calibration sources of ASTER and other EOS sensors. These round-robins rely on well-characterized, ultra-stable radiometers. An experiment field in Yokohama, Japan, showed that the output from the source used for the visible and near-infrared (VNIR) subsystem of ASTER may be underestimated by 1.5%, but this is still within the 4% specification for the absolute, radiometric calibration of these bands. Inflight calibration will rely on vicarious techniques and onboard blackbodies and lamps. Vicarious techniques include ground-reference methods using desert and water sites. A recent joint field campaign gives confidence that these methods currently provide absolute calibration to better than 5%, and indications are that uncertainties less than the required 4% should be achievable at launch. The EOS-AM1 platform will also provide a spacecraft maneuver that will allow ASTER to see the Moon, allowing further characterization of the sensor. A method for combining the results of these independent calibration results is presented. The paper also describes the plans for validating the Level 2 data products from ASTER. These plans rely heavily upon field campaigns using methods similar to those used for the ground-reference, vicarious calibration methods.</span></p>","language":"English","publisher":"IEEE","doi":"10.1109/36.701023","issn":"01962892","usgsCitation":"Thome, K., Aral, K., Hook, S., Kieffer, H., Lang, H., Matsunaga, T., Ono, A., Palluconi, F., Sakuma, H., Slater, P., Takashima, T., Tonooka, H., Tsuchida, S., Welch, R., and Zalewski, E., 1998, ASTER preflight and inflight calibration and the validation of level 2 products: IEEE Transactions on Geoscience and Remote Sensing, v. 36, no. 4, p. 1161-1172, https://doi.org/10.1109/36.701023.","productDescription":"12 p.","startPage":"1161","endPage":"1172","numberOfPages":"12","costCenters":[],"links":[{"id":231334,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e638e4b0c8380cd47271","contributors":{"authors":[{"text":"Thome, K.","contributorId":45078,"corporation":false,"usgs":true,"family":"Thome","given":"K.","affiliations":[],"preferred":false,"id":386392,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aral, K.","contributorId":39157,"corporation":false,"usgs":true,"family":"Aral","given":"K.","email":"","affiliations":[],"preferred":false,"id":386390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hook, S.","contributorId":52360,"corporation":false,"usgs":true,"family":"Hook","given":"S.","email":"","affiliations":[],"preferred":false,"id":386393,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kieffer, H.","contributorId":60405,"corporation":false,"usgs":true,"family":"Kieffer","given":"H.","affiliations":[],"preferred":false,"id":386394,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lang, H.","contributorId":14601,"corporation":false,"usgs":true,"family":"Lang","given":"H.","email":"","affiliations":[],"preferred":false,"id":386386,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Matsunaga, T.","contributorId":29157,"corporation":false,"usgs":true,"family":"Matsunaga","given":"T.","email":"","affiliations":[],"preferred":false,"id":386388,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ono, A.","contributorId":21710,"corporation":false,"usgs":true,"family":"Ono","given":"A.","email":"","affiliations":[],"preferred":false,"id":386387,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Palluconi, F. D.","contributorId":80854,"corporation":false,"usgs":true,"family":"Palluconi","given":"F. D.","affiliations":[],"preferred":false,"id":386397,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Sakuma, H.","contributorId":80855,"corporation":false,"usgs":true,"family":"Sakuma","given":"H.","email":"","affiliations":[],"preferred":false,"id":386398,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Slater, P.","contributorId":86521,"corporation":false,"usgs":true,"family":"Slater","given":"P.","email":"","affiliations":[],"preferred":false,"id":386400,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Takashima, T.","contributorId":43527,"corporation":false,"usgs":true,"family":"Takashima","given":"T.","email":"","affiliations":[],"preferred":false,"id":386391,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Tonooka, H.","contributorId":33486,"corporation":false,"usgs":true,"family":"Tonooka","given":"H.","email":"","affiliations":[],"preferred":false,"id":386389,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Tsuchida, S.","contributorId":63564,"corporation":false,"usgs":true,"family":"Tsuchida","given":"S.","email":"","affiliations":[],"preferred":false,"id":386395,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Welch, R.M.","contributorId":73776,"corporation":false,"usgs":true,"family":"Welch","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":386396,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Zalewski, E.","contributorId":84946,"corporation":false,"usgs":true,"family":"Zalewski","given":"E.","email":"","affiliations":[],"preferred":false,"id":386399,"contributorType":{"id":1,"text":"Authors"},"rank":15}]}}
,{"id":70020433,"text":"70020433 - 1998 - The interplinian activity at Somma-Vesuvius in the last 3500 years","interactions":[],"lastModifiedDate":"2012-03-12T17:20:16","indexId":"70020433","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"The interplinian activity at Somma-Vesuvius in the last 3500 years","docAbstract":"Between 1884 B.C. and A.D. 472, eruptive activity at Somma-Vesuvius was dominated by the three plinian eruptions of Avellino (3550 yr B.P.), Pompei (A.D. 79) and A.D. 472 and, as a result, little attention has been given to the intervening interplinian activity. The interplinian events are here reconstructed using new data from twenty stratigraphic sections around the lower flanks of the volcano. Three main eruptions have been identified fro the protohistoric period (3550 yr B.P.-A.D. 79). The first two occurred shortly after the Avellino event and both show a progression from magmatic to phreatomagmatic behaviour. The third eruption (2700 B.P.) consisted of five phreatomagmetic episodes separated by the emplacement of mud flows. Only one event, the explosive erupton of A.D. 203, has been identified for the ancient historic period (A.D. 79-472). In contrast, the A.D. 472 eruption was followed during the medievel period (A.D. 472-1631) by comparatively vigorous interplinian activity, including four strombolian-phreatomagmatic events and extensive lava effusion, which formed a summit cone (destroyed in A.D. 1631) similar to that on Vesuvius today. Such regular alternations of plinian and interplinian events are evident only since 3550 yr B.P. and provide important constraints for forecasting future behaviour at Somma-Vesuvius.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0377-0273(97)00056-5","issn":"03770273","usgsCitation":"Rolandi, G., Petrosino, P., and Mc, G.J., 1998, The interplinian activity at Somma-Vesuvius in the last 3500 years: Journal of Volcanology and Geothermal Research, v. 82, no. 1-4, p. 19-52, https://doi.org/10.1016/S0377-0273(97)00056-5.","startPage":"19","endPage":"52","numberOfPages":"34","costCenters":[],"links":[{"id":206926,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0377-0273(97)00056-5"},{"id":231256,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"82","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bad59e4b08c986b323b67","contributors":{"authors":[{"text":"Rolandi, G.","contributorId":76472,"corporation":false,"usgs":false,"family":"Rolandi","given":"G.","email":"","affiliations":[],"preferred":false,"id":386204,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Petrosino, P.","contributorId":92826,"corporation":false,"usgs":true,"family":"Petrosino","given":"P.","email":"","affiliations":[],"preferred":false,"id":386206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mc, Geehin J.","contributorId":85356,"corporation":false,"usgs":true,"family":"Mc","given":"Geehin","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":386205,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020431,"text":"70020431 - 1998 - Information-theoretic model selection and model averaging for closed-population capture-recapture studies","interactions":[],"lastModifiedDate":"2023-08-28T16:38:19.361962","indexId":"70020431","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1038,"text":"Biometrical Journal","active":true,"publicationSubtype":{"id":10}},"title":"Information-theoretic model selection and model averaging for closed-population capture-recapture studies","docAbstract":"<p><span>Specification of an appropriate model is critical to valid statistical inference. Given the “true model” for the data is unknown, the goal of model selection is to select a plausible approximating model that balances model bias and sampling variance. Model selection based on information criteria such as AIC or its variant AIC</span><sub>c</sub><span>, or criteria like CAIC, has proven useful in a variety of contexts including the analysis of open-population capture-recapture data. These criteria have not been intensively evaluated for closed-population capture-recapture models, which are integer parameter models used to estimate population size (</span><i>N</i><span>), and there is concern that they will not perform well. To address this concern, we evaluated AIC, AIC</span><sub>c</sub><span>, and CAIC model selection for closed-population capture-recapture models by empirically assessing the quality of inference for the population size parameter&nbsp;</span><i>N</i><span>. We found that AIC-, AIC</span><sub>c</sub><span>-, and CAIC-selected models had smaller relative mean squared errors than randomly selected models, but that confidence interval coverage on&nbsp;</span><i>N</i><span>&nbsp;was poor unless unconditional variance estimates (which incorporate model uncertainty) were used to compute confidence intervals. Overall, AIC and AIC</span><sub>c</sub><span>&nbsp;outperformed CAIC, and are preferred to CAIC for selection among the closed-population capture-recapture models we investigated. A model averaging approach to estimation, using AIC, AIC</span><sub>c</sub><span>, or CAIC to estimate weights, was also investigated and proved superior to estimation using AIC-, AIC</span><sub>c</sub><span>-, or CAIC-selected models. Our results suggested that, for model averaging, AIC or AIC</span><sub>c</sub><span>&nbsp;should be favored over CAIC for estimating weights.</span></p>","language":"English","publisher":"Wiley","doi":"10.1002/(SICI)1521-4036(199808)40:4%3C475::AID-BIMJ475%3E3.0.CO;2-%23","usgsCitation":"Stanley, T.R., and Burnham, K.P., 1998, Information-theoretic model selection and model averaging for closed-population capture-recapture studies: Biometrical Journal, v. 40, no. 4, p. 475-494, https://doi.org/10.1002/(SICI)1521-4036(199808)40:4%3C475::AID-BIMJ475%3E3.0.CO;2-%23.","productDescription":"20 p.","startPage":"475","endPage":"494","numberOfPages":"20","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":231218,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"4","noUsgsAuthors":false,"publicationDate":"1999-04-19","publicationStatus":"PW","scienceBaseUri":"505a3bbae4b0c8380cd627bd","contributors":{"authors":[{"text":"Stanley, Thomas R. 0000-0002-8393-0005 stanleyt@usgs.gov","orcid":"https://orcid.org/0000-0002-8393-0005","contributorId":209928,"corporation":false,"usgs":true,"family":"Stanley","given":"Thomas","email":"stanleyt@usgs.gov","middleInitial":"R.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":386200,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burnham, Kenneth P.","contributorId":95025,"corporation":false,"usgs":true,"family":"Burnham","given":"Kenneth","email":"","middleInitial":"P.","affiliations":[{"id":189,"text":"Colorado Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"preferred":false,"id":386201,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020360,"text":"70020360 - 1998 - Tritium-helium 3 dating under complex conditions in hydraulically stressed areas of a buried-valley aquifer","interactions":[],"lastModifiedDate":"2018-03-16T10:35:39","indexId":"70020360","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"Tritium-helium 3 dating under complex conditions in hydraulically stressed areas of a buried-valley aquifer","docAbstract":"<p><span>The&nbsp;</span><sup>3</sup><span>H-</span><sup>3</sup><span>He dating method is applied in a buried-valley aquifer near Dayton, Ohio. The study area is large, not all sampling locations lie along well-defined flow paths, and existing wells with variable screen lengths and diameters are used. Reliable use of the method at this site requires addressing several complications: (1) The flow system is disturbed because of high pumping rates and induced infiltration; (2) tritium contamination is present in several areas of the aquifer; and (3) radiogenic helium concentrations are elevated in a significant number of the wells. The<span>&nbsp;</span></span><sup>3</sup><span>H-</span><sup>3</sup><span>He ages are examined for self-consistency by comparing the reconstructed tritium evolution to the annual weighted tritium measured in precipitation; deviations result from dispersion, tritium contamination, and mixing.<span>&nbsp;</span></span><sup>3</sup><span>H-</span><sup>3</sup><span>He ages are next examined for consistency with chlorofluorocarbon ages; the agreement is poor because of degradation of CFCs. Finally, the<span>&nbsp;</span></span><sup>3</sup><span>H-</span><sup>3</sup><span>He ages are examined for consistency with the current understanding of local hydrologic processes; the ages are generally supported by hydrogeologic data and the results of groundwater flow modeling coupled with particle-tracking analyses.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/97WR03322","usgsCitation":"Shapiro, S.D., Rowe, G.L., Schlosser, P., Ludin, A., and Stute, M., 1998, Tritium-helium 3 dating under complex conditions in hydraulically stressed areas of a buried-valley aquifer: Water Resources Research, v. 34, no. 5, p. 1165-1180, https://doi.org/10.1029/97WR03322.","productDescription":"16 p.","startPage":"1165","endPage":"1180","costCenters":[],"links":[{"id":487337,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/97wr03322","text":"Publisher Index Page"},{"id":231367,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Ohio","city":"Dayton","volume":"34","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb874e4b08c986b32787e","contributors":{"authors":[{"text":"Shapiro, Stephanie Dunkle","contributorId":82738,"corporation":false,"usgs":true,"family":"Shapiro","given":"Stephanie","email":"","middleInitial":"Dunkle","affiliations":[],"preferred":false,"id":385954,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rowe, Gary L. glrowe@usgs.gov","contributorId":1779,"corporation":false,"usgs":true,"family":"Rowe","given":"Gary","email":"glrowe@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":385952,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schlosser, Peter","contributorId":50936,"corporation":false,"usgs":true,"family":"Schlosser","given":"Peter","email":"","affiliations":[],"preferred":false,"id":385955,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ludin, Andrea","contributorId":93232,"corporation":false,"usgs":true,"family":"Ludin","given":"Andrea","email":"","affiliations":[],"preferred":false,"id":385951,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stute, Martin","contributorId":131127,"corporation":false,"usgs":false,"family":"Stute","given":"Martin","email":"","affiliations":[{"id":7254,"text":"Columbia University - Lamont Doherty Earth Observatory","active":true,"usgs":false}],"preferred":false,"id":385953,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70020485,"text":"70020485 - 1998 - Singularity and Nonnormality in the Classification of Compositional Data","interactions":[],"lastModifiedDate":"2013-03-01T15:16:31","indexId":"70020485","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2700,"text":"Mathematical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Singularity and Nonnormality in the Classification of Compositional Data","docAbstract":"Geologists may want to classify compositional data and express the classification as a map. Regionalized classification is a tool that can be used for this purpose, but it incorporates discriminant analysis, which requires the computation and inversion of a covariance matrix. Covariance matrices of compositional data always will be singular (noninvertible) because of the unit-sum constraint. Fortunately, discriminant analyses can be calculated using a pseudo-inverse of the singular covariance matrix; this is done automatically by some statistical packages such as SAS. Granulometric data from the Darss Sill region of the Baltic Sea is used to explore how the pseudo-inversion procedure influences discriminant analysis results, comparing the algorithm used by SAS to the more conventional Moore-Penrose algorithm. Logratio transforms have been recommended to overcome problems associated with analysis of compositional data, including singularity. A regionalized classification of the Darss Sill data after logratio transformation is different only slightly from one based on raw granulometric data, suggesting that closure problems do not influence severely regionalized classification of compositional data.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mathematical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","doi":"10.1023/A:1021705120065","issn":"08828121","usgsCitation":"Bohling, G.C., Davis, J., Olea, R., and Harff, J., 1998, Singularity and Nonnormality in the Classification of Compositional Data: Mathematical Geology, v. 30, no. 1, p. 5-20, https://doi.org/10.1023/A:1021705120065.","startPage":"5","endPage":"20","numberOfPages":"16","costCenters":[],"links":[{"id":231335,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":268639,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1021705120065"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b90e4e4b08c986b3196c5","contributors":{"authors":[{"text":"Bohling, Geoffrey C.","contributorId":43109,"corporation":false,"usgs":false,"family":"Bohling","given":"Geoffrey","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":386402,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, J.C.","contributorId":72121,"corporation":false,"usgs":true,"family":"Davis","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":386404,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olea, Ricardo A. 0000-0003-4308-0808","orcid":"https://orcid.org/0000-0003-4308-0808","contributorId":26436,"corporation":false,"usgs":true,"family":"Olea","given":"Ricardo A.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":386401,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Harff, Jan","contributorId":63957,"corporation":false,"usgs":false,"family":"Harff","given":"Jan","email":"","affiliations":[],"preferred":false,"id":386403,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020495,"text":"70020495 - 1998 - Estimation of the depth to the fresh-water/salt-water interface from vertical head gradients in wells in coastal and island aquifers","interactions":[],"lastModifiedDate":"2024-03-05T01:36:31.073353","indexId":"70020495","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of the depth to the fresh-water/salt-water interface from vertical head gradients in wells in coastal and island aquifers","docAbstract":"<div id=\"Abs1-section\" class=\"c-article-section\"><div id=\"Abs1-content\" class=\"c-article-section__content\"><p> An accurate estimate of the depth to the theoretical interface between fresh, water and salt water is critical to estimates of well yields in coastal and island aquifers. The Ghyben–Herzberg relation, which is commonly used to estimate interface depth, can greatly underestimate or overestimate the fresh-water thickness, because it assumes no vertical head gradients and no vertical flow. Estimation of the interface depth needs to consider the vertical head gradients and aquifer anisotropy that may be present. This paper presents a method to calculate vertical head gradients using water-level measurements made during drilling of a partially penetrating well; the gradient is then used to estimate interface depth. Application of the method to a numerically simulated fresh-water/salt-water system shows that the method is most accurate when the gradient is measured in a deeply penetrating well. Even using a shallow well, the method more accurately estimates the interface position than does the Ghyben–Herzberg relation where substantial vertical head gradients exist. Application of the method to field data shows that drilling, collection methods of water-level data, and aquifer inhomogeneities can cause difficulties, but the effects of these difficulties can be minimized.</p></div></div>","language":"English","publisher":"Springer","doi":"10.1007/s100400050159","issn":"14312174","usgsCitation":"Izuka, S.K., and Gingerich, S.B., 1998, Estimation of the depth to the fresh-water/salt-water interface from vertical head gradients in wells in coastal and island aquifers: Hydrogeology Journal, v. 6, no. 3, p. 365-373, https://doi.org/10.1007/s100400050159.","productDescription":"9 p.","startPage":"365","endPage":"373","numberOfPages":"9","costCenters":[],"links":[{"id":231491,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0bb6e4b0c8380cd5283e","contributors":{"authors":[{"text":"Izuka, S. K.","contributorId":39818,"corporation":false,"usgs":true,"family":"Izuka","given":"S.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":386435,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gingerich, S. B.","contributorId":83958,"corporation":false,"usgs":true,"family":"Gingerich","given":"S.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":386436,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020402,"text":"70020402 - 1998 - Depositional facies and sequence stratigraphy of a Lower Carboniferous bryozoan-crinoidal carbonate ramp in the Illinois Basin, mid-continent USA","interactions":[],"lastModifiedDate":"2024-01-05T01:22:47.687254","indexId":"70020402","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1785,"text":"Geological Society Special Publication","active":true,"publicationSubtype":{"id":10}},"title":"Depositional facies and sequence stratigraphy of a Lower Carboniferous bryozoan-crinoidal carbonate ramp in the Illinois Basin, mid-continent USA","docAbstract":"<div id=\"abstracts\" data-extent=\"frontmatter\"><div class=\"core-container\"><div>The Lower Carboniferous Fort Payne and Ullin Formations in the Illinois Basin form the transgressive and highstand systems tracts that were deposited in a carbonate ramp setting. During deposition of the Ullin Limestone, biotic communities dominated by fenestrate bryozoans and echinoderms (primarily crinoids) proliferated, possibly in response to global tectonic, biological, and oceanographic events that affected bathymetry and nutrient supply. The Fort Payne Formation consists of a dark grey-brown, siliceous and argillaceous lime mudstone in the lower part (transgressive systems tract) and a very fine-grained wackestone to packstone with rare mud mounds in the upper part (early highstand), and was deposited in an outer ramp to basinal environment. During deposition of the lower Ullin Limestone (mostly early highstand), bryozoan-crinoidal build-ups accreted both laterally and vertically into several relatively large carbonate banks, which were partly surrounded by siliceous Fort Payne sea. Bryozoans (primarily fenestrates) were especially prevalent during the late stage of bank development and formed mud-free bioherms up to 120 m thick. In places, carbonate mud mounds also formed during the early stage of bank deposition. Bioherm development declined during deposition of the upper Ullin Limestone (late highstand), and a broad, storm-dominated carbonate ramp was established that became the site for widespread deposition of bryozoan-crinoidal sandwaves. Gradual shallowing led to ooid formation at the end of Ullin deposition. This sequence was terminated by a relative rise in sea level that resulted in deposition of the transgressive facies of the lower part of the overlying Salem Limestone. The depositional style and the nature of skeletal material of the Fort Payne and Ullin Formations are similar to those of cool-water carbonates. A deep-water setting along with upwelling of cool, nutrient-rich oceanic waters may have been responsible for the proliferation of bryozoans and crinoids at this time. The deep-water setting and abundant nutrient supply also may have restricted the formation of ooids and proliferation of shallow-water calcareous organisms.</div></div></div>","language":"English","publisher":"Geological Society, London","doi":"10.1144/GSL.SP.1999.149.01.17","issn":"03058719","usgsCitation":"Lasemi, Z., Norby, R.D., and Treworgy, J., 1998, Depositional facies and sequence stratigraphy of a Lower Carboniferous bryozoan-crinoidal carbonate ramp in the Illinois Basin, mid-continent USA: Geological Society Special Publication, v. 149, p. 369-395, https://doi.org/10.1144/GSL.SP.1999.149.01.17.","productDescription":"27 p.","startPage":"369","endPage":"395","numberOfPages":"27","costCenters":[],"links":[{"id":231406,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"149","noUsgsAuthors":false,"publicationDate":"1999-01-12","publicationStatus":"PW","scienceBaseUri":"5059fec3e4b0c8380cd4eef3","contributors":{"authors":[{"text":"Lasemi, Z.","contributorId":17795,"corporation":false,"usgs":true,"family":"Lasemi","given":"Z.","email":"","affiliations":[],"preferred":false,"id":386108,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Norby, R. D.","contributorId":71327,"corporation":false,"usgs":true,"family":"Norby","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":386110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Treworgy, J.D.","contributorId":39145,"corporation":false,"usgs":true,"family":"Treworgy","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":386109,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020345,"text":"70020345 - 1998 - Riverine based eco-tourism: Trinity River non-market benefits estimates","interactions":[],"lastModifiedDate":"2024-02-14T17:36:10.234468","indexId":"70020345","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2074,"text":"International Journal of Sustainable Development and World Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Riverine based eco-tourism: Trinity River non-market benefits estimates","docAbstract":"<p><span>California's Central Valley Project (CVP) was approved by voters in a statewide referendum in 1933. CVP referendum approval initiated funding for construction of important water development projects that had far reaching effects on regional water supplies. The construction of Trinity Dam in 1963 and the subsequent transbasin diversion of Trinity River flow was one of several CVP projects that had noteworthy adverse environmental and regional economic impacts. The Trinity River is the largest tributary of the Klamath River, and has its headwaters in the Trinity Alps of north-central California. After the construction of Trinity Dam in 1963, 90% of the Trinity River flow at Lewiston was moved to the Sacramento River via the Clear Creek Tunnel. Before 1963, the Trinity River was a major recreation resource of Northern California. The loss of stream flow has had a marked adverse impact on Trinity River-related recreation activities and the size and robustness of Trinity River salmon, steelhead, shad, and sturgeon runs. Trinity River water produces hydropower during its transit via Bureau of Reclamation canals and pumps to the northern San Joaquin Valley, where it is used for irrigated agriculture. The benefits provided by Trinity River instream flow-related environmental amenities were estimated with the travel cost method (TCM). Trinity River non-market benefits are about $406 million per annum, while the social cost of sending water down the Trinity River ranges from $17 to $42 million per annum, depending on the exact flow. We also discuss the relative magnitude of Trinity River survey data contingent value method (CVM) benefits estimates.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/13504509809469977","issn":"13504509","usgsCitation":"Douglas, A.J., and Taylor, J.G., 1998, Riverine based eco-tourism: Trinity River non-market benefits estimates: International Journal of Sustainable Development and World Ecology, v. 5, no. 2, p. 136-148, https://doi.org/10.1080/13504509809469977.","productDescription":"13 p.","startPage":"136","endPage":"148","numberOfPages":"13","costCenters":[],"links":[{"id":231131,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","issue":"2","noUsgsAuthors":false,"publicationDate":"2009-06-02","publicationStatus":"PW","scienceBaseUri":"505aadc2e4b0c8380cd86f7d","contributors":{"authors":[{"text":"Douglas, A. J.","contributorId":11172,"corporation":false,"usgs":true,"family":"Douglas","given":"A.","middleInitial":"J.","affiliations":[],"preferred":false,"id":385902,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taylor, J. G.","contributorId":33671,"corporation":false,"usgs":true,"family":"Taylor","given":"J.","middleInitial":"G.","affiliations":[],"preferred":false,"id":385903,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020626,"text":"70020626 - 1998 - Nonlethal evaluation of the physiological health of unionid mussels: Method for biopsy and glycogen analysis","interactions":[],"lastModifiedDate":"2024-05-31T11:24:58.119059","indexId":"70020626","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2564,"text":"Journal of the North American Benthological Society","onlineIssn":"1937-237X","printIssn":"0887-3593","active":true,"publicationSubtype":{"id":10}},"title":"Nonlethal evaluation of the physiological health of unionid mussels: Method for biopsy and glycogen analysis","docAbstract":"<div class=\"col-lg-9 article__content\"><div class=\"article__body show-references \"><div class=\"hlFld-Abstract\"><div class=\"abstractSection abstractInFull\"><p>In long-lived unionid mussels, many short-term measures of growth are of limited value. Changes in physiological condition may be an early indication of stress, because the increased energy demand associated with stress often results in a depletion of glycogen reserves, the principal storage form of carbohydrates in unionid mussels. Our goal was to nonlethally extract tissue from freshwater mussels and then to develop a rapid and dependable method for the analysis of glycogen in the tissue extracts. A biopsy technique was developed to remove between 5 and 10 mg of foot tissue in Amblema plicata plicata. The survival rate did not differ between biopsied and non-biopsied mussels during a 581-d observation period, demonstrating that the biopsy technique will allow nonlethal evaluation of the physiological condition of individual mussels through measurement of changes in contaminant, genetic, and biochemical indicators in tissue. We also modified the standard alkaline digestion and phenol-sulfuric acid analysis of glycogen for use on the small samples of biopsied tissue and to reduce analysis time and cost. We present quality control data, including method detection limits and estimates of precision and bias. The modified analytical method is rapid and accurate and has a method detection limit of 0.014 mg glycogen. Glycogen content in the biopsied samples was well above the method detection limit; it ranged from 0.09 to 0.36 mg, indicating that the method should be applicable to native mussels.</p></div></div></div></div>","language":"English","publisher":"University of Chicago Press","doi":"10.2307/1468056","issn":"08873593","usgsCitation":"Naimo, T., Damschen, E., Rada, R., and Monroe, E., 1998, Nonlethal evaluation of the physiological health of unionid mussels: Method for biopsy and glycogen analysis: Journal of the North American Benthological Society, v. 17, no. 1, p. 121-128, https://doi.org/10.2307/1468056.","productDescription":"8 p.","startPage":"121","endPage":"128","numberOfPages":"8","costCenters":[],"links":[{"id":231271,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a677de4b0c8380cd73361","contributors":{"authors":[{"text":"Naimo, T.J.","contributorId":32870,"corporation":false,"usgs":true,"family":"Naimo","given":"T.J.","affiliations":[],"preferred":false,"id":386931,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Damschen, E.D.","contributorId":23712,"corporation":false,"usgs":true,"family":"Damschen","given":"E.D.","email":"","affiliations":[],"preferred":false,"id":386930,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rada, R.G.","contributorId":7651,"corporation":false,"usgs":true,"family":"Rada","given":"R.G.","affiliations":[],"preferred":false,"id":386929,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Monroe, E.M.","contributorId":105822,"corporation":false,"usgs":true,"family":"Monroe","given":"E.M.","affiliations":[],"preferred":false,"id":386932,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70021044,"text":"70021044 - 1998 - Volcanism offshore of Vesuvius Volcano in Naples Bay","interactions":[],"lastModifiedDate":"2023-11-07T13:18:31.461924","indexId":"70021044","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Volcanism offshore of Vesuvius Volcano in Naples Bay","docAbstract":"High-resolution seismic reflection data are used to identify structural features in Naples Bay near Vesuvius Volcano. Several buried seismic units with reflection-free interiors are probably volcanic deposits erupted during and since the formation of the breached crater of Monte Somma Volcano, which preceded the growth of Vesuvius. The presumed undersea volcanic deposits are limited in extent; thus, stratigraphie relationships cannot be established among them. Other features revealed by our data include (a) the warping of lowstand marine deposits by undersea cryptodomes located approximately 10 km from the summit of Vesuvius, (b) a succession of normal step faults that record seaward collapse of the volcano, and (c) a small undersea slump in the uppermost marine deposits of Naples Bay, which may be the result of nue??e ardentes that entered the sea during a major eruption of Vesuvius in 1631. Detection of these undersea features illustrates some capabilities of making detailed seismic reflection profiles across undersea volcanoes.","language":"English","publisher":"Springer","doi":"10.1007/s004450050200","issn":"02588900","usgsCitation":"Milia, A., Mirabile, L., Torrente, M., and Dvorak, J., 1998, Volcanism offshore of Vesuvius Volcano in Naples Bay: Bulletin of Volcanology, v. 59, no. 6, p. 404-413, https://doi.org/10.1007/s004450050200.","productDescription":"10 p.","startPage":"404","endPage":"413","numberOfPages":"10","costCenters":[],"links":[{"id":229692,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Italy","otherGeospatial":"Vesuvius Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              14.265821488686527,\n              40.92940900824516\n            ],\n            [\n              14.265821488686527,\n              40.71116542675179\n            ],\n            [\n              14.620130570718146,\n              40.71116542675179\n            ],\n            [\n              14.620130570718146,\n              40.92940900824516\n            ],\n            [\n              14.265821488686527,\n              40.92940900824516\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"59","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc321e4b08c986b32af8d","contributors":{"authors":[{"text":"Milia, A.","contributorId":62778,"corporation":false,"usgs":true,"family":"Milia","given":"A.","affiliations":[],"preferred":false,"id":388401,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mirabile, L.","contributorId":60398,"corporation":false,"usgs":true,"family":"Mirabile","given":"L.","email":"","affiliations":[],"preferred":false,"id":388400,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Torrente, M.M.","contributorId":23707,"corporation":false,"usgs":true,"family":"Torrente","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":388398,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dvorak, J.J.","contributorId":52597,"corporation":false,"usgs":true,"family":"Dvorak","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":388399,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70021069,"text":"70021069 - 1998 - Mourning Dove nesting habitat and nest success in Central Missouri","interactions":[],"lastModifiedDate":"2012-03-12T17:19:47","indexId":"70021069","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Mourning Dove nesting habitat and nest success in Central Missouri","docAbstract":"Previous Mourning Dove (Zenaida macroura) nesting studies conducted in areas containing a mixture of edge and continuous habitats have focused on edge habitats. Consequently, little is known about the potential contribution of continuous habitats to dove production. In this study we evaluated the relative importance of these two extensive habitat types by monitoring the habitat use and nest success of 59 radio-marked doves during 1990-1991 in central Missouri. Of 83 nests initiated by our marked sample, most (81.9%) were located in edge habitats. Although continuous habitats were selected less as nest sites, the proportion of successful nests did not differ significantly from that in edge habitats. Our data indicate that continuous habitats should not be considered marginal nesting habitat. If the intensity of use and nest success that we observed are representative regionally or nationally, continuous habitats could contribute substantially to annual Mourning Dove production because of the high availability of these habitats throughout much of the Mourning Dove breeding range.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Field Ornithology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"02738570","usgsCitation":"Drobney, R., Schulz, J., Sheriff, S., and Fuemmeler, W., 1998, Mourning Dove nesting habitat and nest success in Central Missouri: Journal of Field Ornithology, v. 69, no. 2, p. 299-305.","startPage":"299","endPage":"305","numberOfPages":"7","costCenters":[],"links":[{"id":230169,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5ec0e4b0c8380cd70c56","contributors":{"authors":[{"text":"Drobney, R.D.","contributorId":26827,"corporation":false,"usgs":true,"family":"Drobney","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":388550,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schulz, J.H.","contributorId":67856,"corporation":false,"usgs":true,"family":"Schulz","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":388552,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sheriff, S.L.","contributorId":93155,"corporation":false,"usgs":true,"family":"Sheriff","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":388553,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fuemmeler, W.J.","contributorId":41701,"corporation":false,"usgs":true,"family":"Fuemmeler","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":388551,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020654,"text":"70020654 - 1998 - A borehole-to-surface electromagnetic survey","interactions":[],"lastModifiedDate":"2024-04-17T16:20:15.305092","indexId":"70020654","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1808,"text":"Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"A borehole-to-surface electromagnetic survey","docAbstract":"The results of a limited field trial confirm the usefulness of borehole-to-surface electromagnetic (EM) measurements for monitoring fluid extraction. A vertical EM profiling experiment was done at the University of California Richmond Field Station, where we simulated a brine spill plume by creating a saline water injection zone at a depth of 30 m. The data acquisition mode was analogous to the reverse vertical seismic profiling (VSP) configuration used for seismic measurements in that the EM transmitter traversed the PVC-cased borehole used for fluid injection and extraction while the receivers were deployed on the surface. The EM measurements were made at 9.6 kHz with an accuracy of 1% in signal amplitude and 1??in signal phase. Observations were taken at 5-m intervals along two intersecting profiles that were centered on the injection well and extended for 60 m on either side of it. The presence of the injected salt water, at the expected 30 m depth, was indicated clearly by differences between the pre-extraction and postextraction data. A limited amount of numerical modeling showed that the experimental data were consistent with the presence of two superposed saline plumes. The uppermost of these, located at 26 m depth, was 2 m thick and had an area of 30 m2. The lower plume, located at 30 m, is the major cause of the observed anomally, as it has an areal extent of 120 m2 and a thickness of 3 m. Surprisingly, the measurements were very sensitive to the presence of cultural surficial conductivity anomalies. These spurious effect were reduced by spatial filtering of the data prior to interpretation.The results of a limited field trial confirm the usefulness of borehole-to-surface electromagnetic (EM) measurements for monitoring fluid extraction. A brine spill plume is simulated by creating a saline water injection zone at a depth of 30 m. The data acquisition mode was analogous to the reverse vertical seismic profiling (VSP) configuration used for seismic measurements in that the EM transmitter traversed the polyvinyl chloride-cased borehole used for fluid injection and extraction while the receivers were deployed on the surface. Observations were taken at 5-m intervals along two intersecting profiles that were centered on the injection well and extended for 60 m on either side of it.","language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK, United States","doi":"10.1190/1.1444453","issn":"00168033","usgsCitation":"Tseng, H., Becker, A., Wilt, M., and Deszcz-Pan, M., 1998, A borehole-to-surface electromagnetic survey: Geophysics, v. 63, no. 5, p. 1565-1572, https://doi.org/10.1190/1.1444453.","productDescription":"8 p.","startPage":"1565","endPage":"1572","numberOfPages":"8","costCenters":[],"links":[{"id":231192,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"63","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e32ce4b0c8380cd45e66","contributors":{"authors":[{"text":"Tseng, H.-W.","contributorId":76089,"corporation":false,"usgs":true,"family":"Tseng","given":"H.-W.","email":"","affiliations":[],"preferred":false,"id":387023,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Becker, A.","contributorId":95229,"corporation":false,"usgs":true,"family":"Becker","given":"A.","email":"","affiliations":[],"preferred":false,"id":387024,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilt, M.J.","contributorId":30781,"corporation":false,"usgs":true,"family":"Wilt","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":387022,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Deszcz-Pan, M.","contributorId":102422,"corporation":false,"usgs":true,"family":"Deszcz-Pan","given":"M.","email":"","affiliations":[],"preferred":false,"id":387025,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020171,"text":"70020171 - 1998 - Structural control of coalbed methane production in Alabama","interactions":[],"lastModifiedDate":"2012-03-12T17:19:20","indexId":"70020171","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"Structural control of coalbed methane production in Alabama","docAbstract":"Thin-skinned structures are distributed throughout the Alabama coalbed methane fields, and these structures affect the production of gas and water from coal-bearing strata. Extensional structures in Deerlick Creek and Cedar Cove fields include normal faults and hanging-wall rollovers, and area balancing indicates that these structures are detached in the Pottsville Formation. Compressional folds in Gurnee and Oak Grove fields, by comparison, are interpreted to be detachment folds formed above decollements at different stratigraphic levels. Patterns of gas and water production reflect the structural style of each field and further indicate that folding and faulting have affected the distribution of permeability and the overall success of coalbed methane operations. Area balancing can be an effective way to characterize coalbed methane reservoirs in structurally complex regions because it constrains structural geometry and can be used to determine the distribution of layer-parallel strain. Comparison of calculated requisite strain and borehole expansion data from calliper logs suggests that strain in coalbed methane reservoirs is predictable and can be expressed as fracturing and small-scale faulting. However, refined methodology is needed to analyze heterogeneous strain distributions in discrete bed segments. Understanding temporal variation of production patterns in areas where gas and water production are influenced by map-scale structure will further facilitate effective management of coalbed methane fields.Thin-skinned structures are distributed throughout the Alabama coalbed methane fields, and these structures affect the production of gas and water from coal-bearing strata. Extensional structures in Deerlick Creek and Cedar Cove fields include normal faults and hanging-wall rollovers, and area balancing indicates that these structures are detached in the Pottsville Formation. Compressional folds in Gurnee and Oak Grove fields, by comparison, are interpreted to be detachment folds formed above decollements at different stratigraphic levels. Patterns of gas and water production reflect the structural style of each field and further indicate that folding and faulting have affected the distribution of permeability and the overall success of coalbed methane operations. Area balancing can be an effective way to characterize coalbed methane reservoirs in structurally complex regions because it constrains structural geometry and can be used to determine the distribution of layer-parallel strain. Comparison of calculated requisite strain and borehole expansion data from calliper logs suggests that strain in coalbed methane reservoirs is predictable and can be expressed as fracturing and small-scale faulting. However, refined methodology is needed to analyze heterogeneous strain distributions in discrete bed segments. Understanding temporal variation of production patterns in areas where gas and water production are influenced by map-scale structure will further facilitate effective management of coalbed methane fields.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier Sci B.V.","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/S0166-5162(98)00034-2","issn":"01665162","usgsCitation":"Pashin, J., and Groshong, R., 1998, Structural control of coalbed methane production in Alabama: International Journal of Coal Geology, v. 38, no. 1-2, p. 89-113, https://doi.org/10.1016/S0166-5162(98)00034-2.","startPage":"89","endPage":"113","numberOfPages":"25","costCenters":[],"links":[{"id":206014,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0166-5162(98)00034-2"},{"id":227870,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"38","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9bd6e4b08c986b31d100","contributors":{"authors":[{"text":"Pashin, J.C.","contributorId":41897,"corporation":false,"usgs":true,"family":"Pashin","given":"J.C.","affiliations":[],"preferred":false,"id":385275,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Groshong, R.H. Jr.","contributorId":56398,"corporation":false,"usgs":true,"family":"Groshong","given":"R.H.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":385276,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1000762,"text":"1000762 - 1998 - Seasonal migration and homing of channel catfish in the lower Wisconsin River, Wisconsin","interactions":[],"lastModifiedDate":"2016-04-04T13:26:47","indexId":"1000762","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"Seasonal migration and homing of channel catfish in the lower Wisconsin River, Wisconsin","docAbstract":"<p><span>A multiyear tag and recapture study was conducted to determine whether channel catfish</span><i>Ictalurus punctatus</i><span>&nbsp;were migratory and if they had strong homing tendencies. Over 10,000 channel catfish were tagged from the lower Wisconsin River and adjacent waters of the upper Mississippi River during the 3-year sampling period. Data on movements were obtained from study recaptures and through tag returns and harvest information provided by sport anglers and commercial fishers. Channel catfish occupied relatively small home ranges during summer, migrated downstream to the upper Mississippi River in autumn, then migrated back up the Wisconsin River in spring to spawn and to occupy the same summer home sites they had used in previous summers. Fish size was a factor in the degree of fidelity to summer home sites, with larger fish showing greater fidelity.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8675(1998)018<0085:SMAHOC>2.0.CO;2","usgsCitation":"Pellett, T.D., Van Dyck, G.J., and Adams, J.V., 1998, Seasonal migration and homing of channel catfish in the lower Wisconsin River, Wisconsin: North American Journal of Fisheries Management, v. 18, no. 1, p. 85-95, https://doi.org/10.1577/1548-8675(1998)018<0085:SMAHOC>2.0.CO;2.","productDescription":"11 p.","startPage":"85","endPage":"95","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":130237,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db648c34","contributors":{"authors":[{"text":"Pellett, Thomas D.","contributorId":15969,"corporation":false,"usgs":true,"family":"Pellett","given":"Thomas","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":309367,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Dyck, Gene J.","contributorId":103620,"corporation":false,"usgs":true,"family":"Van Dyck","given":"Gene","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":309368,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Adams, Jean V. 0000-0002-9101-068X jvadams@usgs.gov","orcid":"https://orcid.org/0000-0002-9101-068X","contributorId":3140,"corporation":false,"usgs":true,"family":"Adams","given":"Jean","email":"jvadams@usgs.gov","middleInitial":"V.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":309366,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}