{"pageNumber":"20","pageRowStart":"475","pageSize":"25","recordCount":513,"records":[{"id":22327,"text":"ofr9714 - 1997 - Advective-transport observation (ADV) package, a computer program for adding advective-transport observations of steady-state flow fields to the three-dimensional ground-water-flow parameter-estimation model MODFLOWP","interactions":[],"lastModifiedDate":"2019-12-05T08:15:28","indexId":"ofr9714","displayToPublicDate":"2003-08-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"97-14","title":"Advective-transport observation (ADV) package, a computer program for adding advective-transport observations of steady-state flow fields to the three-dimensional ground-water-flow parameter-estimation model MODFLOWP","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey ","publisherLocation":"Reston, VA","doi":"10.3133/ofr9714","issn":"0094-9140","usgsCitation":"Anderman, E.R., and Hill, M.C., 1997, Advective-transport observation (ADV) package, a computer program for adding advective-transport observations of steady-state flow fields to the three-dimensional ground-water-flow parameter-estimation model MODFLOWP: U.S. Geological Survey Open-File Report 97-14, vii, 67 p., https://doi.org/10.3133/ofr9714.","productDescription":"vii, 67 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":51736,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1997/0014/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":154473,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1997/0014/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a4a4b","contributors":{"authors":[{"text":"Anderman, Evan R.","contributorId":95505,"corporation":false,"usgs":true,"family":"Anderman","given":"Evan","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":188046,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hill, Mary Catherine","contributorId":53400,"corporation":false,"usgs":true,"family":"Hill","given":"Mary","email":"","middleInitial":"Catherine","affiliations":[],"preferred":false,"id":188045,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":25567,"text":"wri974228 - 1997 - Hydrogeologic framework and simulation of ground-water flow and travel time in the shallow aquifer system in the area of Naval Support Activity Memphis, Millington, Tennessee","interactions":[],"lastModifiedDate":"2012-02-02T00:08:23","indexId":"wri974228","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"97-4228","title":"Hydrogeologic framework and simulation of ground-water flow and travel time in the shallow aquifer system in the area of Naval Support Activity Memphis, Millington, Tennessee","docAbstract":"Naval Support Activity (NSA) Memphis is a Department of the Navy facility located at the City of Millington, Tennessee, about 5 miles north of Memphis. Contaminants have been detected in surface-water, sediment, and ground-water samples collected at the facility. As part of the Installation Restoration Program, the Navy is considering remedial-action options to prevent or lessen the effect of ground-water contamination at the facility and to control the movement and discharge of contaminants. A numerical model of the ground-water-flow system in the area of NSA Memphis was constructed and calibrated so that quantifiable estimates could be made of ground-water-flow rates, direction, and time-of-travel.  The sediments beneath NSA Memphis, to a depth of about 200 feet, form a shallow aquifer system. From youngest to oldest, the stratigraphic units that form the shallow aquifer system are alluvium, loess, fluvial deposits, and the Cockfield and Cook Mountain Formations. The shallow aquifer system is organized into five hydrogeologic units: (1) a confining unit composed of the relatively low permeability sediments of the upper alluvium and the loess; (2) the A1 aquifer comprising sand and gravel of the lower alluvium and the fluvial deposits, and sand lenses in the upper part of the preserved section of the Cockfield Formation; (3) a confining unit composed of clay and silt within the upper part of the Cockfield Formation; (4) the Cockfield aquifer comprising sand lenses within the lower part of the preserved section of the Cockfield Formation; and (5) a confining unit formed by low permeability sediments of the Cook Mountain Formation that composes the upper confining unit for the Memphis aquifer. Thicknesses of individual units vary considerably across the facility. Structural and depositional features that affect the occurrence of ground water in the shallow aquifer system include faulting, an erosional scarp, and 'windows' in the confining units. Underlying the shallow aquifer system is the Memphis aquifer, the primary source of water for NSA Memphis and the City of Memphis, Tennessee. Analyses of sediment cores, aquifer and well specific-capacity tests, and numerical modeling were used to estimate the hydraulic characteristics of units of the shallow aquifer system. The vertical hydraulic conductivity of core samples of the alluvium-loess confining unit ranged from about 8.5 x 10-5 to 1.6 x 10-2 feet per day, and the total porosity of the samples ranged from about 35 to 48 percent. The results of the aquifer test were used to estimate a horizontal hydraulic conductivity of about 5 feet per day for the alluvial-fluvial deposits aquifer. The total porosity of core samples of the alluvial-fluvial deposits aquifer ranged from about 22 to 39 percent. The vertical hydraulic conductivity of core samples of the Cockfield confining unit ranged from about 4.5 x 10-5 to 2.5 x 10-3 feet per day, and the total porosity ranged from about 41 to 55 percent. Well specific-capacity tests indicate that the horizontal hydraulic conductivity of sand units that compose the Cockfield aquifer range from about 0.5 to 3 feet per day. The vertical hydraulic conductivity of core samples of the Cook Mountain confining unit ranged from about 5.0 x 10-6 to 9.9 x 10-4 feet per day. Total porosity of core samples of the Cook Mountain confining unit ranged from about 30 to 42 percent. Ground-water flow and time-of-travel in the shallow aquifer system were simulated using the MODFLOW finite-difference model and the -particle-tracking program MODPATH. A three-layer, steady-state model of the shallow aquifer system was constructed and calibrated to the potentiometric surface of the A1 aquifer. Results of numerical modeling support the proposed conceptual hydrogeologic model of the shallow aquifer system. Ground-water time-of-travel in the A1 aquifer was simulated using an assumed effective porosity of 25 percent. Typical ground-water-flow velocities were on the or","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri974228","usgsCitation":"Robinson, J.L., Carmichael, J.K., Halford, K.J., and Ladd, D.E., 1997, Hydrogeologic framework and simulation of ground-water flow and travel time in the shallow aquifer system in the area of Naval Support Activity Memphis, Millington, Tennessee: U.S. Geological Survey Water-Resources Investigations Report 97-4228, vi, 56 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri974228.","productDescription":"vi, 56 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":118760,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1997/4228/report-thumb.jpg"},{"id":1909,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri974228","linkFileType":{"id":5,"text":"html"}},{"id":54288,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1997/4228/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ee4b07f02db627dc7","contributors":{"authors":[{"text":"Robinson, James L.","contributorId":82284,"corporation":false,"usgs":true,"family":"Robinson","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":194230,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carmichael, John K. 0000-0003-1099-841X jkcarmic@usgs.gov","orcid":"https://orcid.org/0000-0003-1099-841X","contributorId":4554,"corporation":false,"usgs":true,"family":"Carmichael","given":"John","email":"jkcarmic@usgs.gov","middleInitial":"K.","affiliations":[{"id":24708,"text":"Lower Mississippi-Gulf Water Science Center","active":true,"usgs":true}],"preferred":true,"id":194229,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Halford, Keith J. 0000-0002-7322-1846 khalford@usgs.gov","orcid":"https://orcid.org/0000-0002-7322-1846","contributorId":1374,"corporation":false,"usgs":true,"family":"Halford","given":"Keith","email":"khalford@usgs.gov","middleInitial":"J.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":194227,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ladd, David E. 0000-0002-9247-7839 deladd@usgs.gov","orcid":"https://orcid.org/0000-0002-9247-7839","contributorId":1646,"corporation":false,"usgs":true,"family":"Ladd","given":"David","email":"deladd@usgs.gov","middleInitial":"E.","affiliations":[{"id":581,"text":"Tennessee Water Science Center","active":true,"usgs":true}],"preferred":true,"id":194228,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":6649,"text":"fs12197 - 1997 - Modeling Ground-Water Flow with MODFLOW and Related Programs","interactions":[],"lastModifiedDate":"2012-02-02T00:05:52","indexId":"fs12197","displayToPublicDate":"1998-06-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"121-97","title":"Modeling Ground-Water Flow with MODFLOW and Related Programs","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey,","doi":"10.3133/fs12197","usgsCitation":"Leake, S.A., 1997, Modeling Ground-Water Flow with MODFLOW and Related Programs: U.S. Geological Survey Fact Sheet 121-97, [4] p. : col. ill. ; 28 cm., https://doi.org/10.3133/fs12197.","productDescription":"[4] p. : col. ill. ; 28 cm.","costCenters":[],"links":[{"id":117161,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs_121_97.bmp"},{"id":696,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/FS/FS-121-97","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699a53","contributors":{"authors":[{"text":"Leake, Stanley A. 0000-0003-3568-2542 saleake@usgs.gov","orcid":"https://orcid.org/0000-0003-3568-2542","contributorId":1846,"corporation":false,"usgs":true,"family":"Leake","given":"Stanley","email":"saleake@usgs.gov","middleInitial":"A.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":153099,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":23683,"text":"ofr97571 - 1997 - Documentation of computer program (FHB1) for assignment of transient specified-flow and specified-head boundaries in applications of the modular finite-diference ground-water flow model (MODFLOW)","interactions":[],"lastModifiedDate":"2012-02-02T00:08:15","indexId":"ofr97571","displayToPublicDate":"1998-06-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"97-571","title":"Documentation of computer program (FHB1) for assignment of transient specified-flow and specified-head boundaries in applications of the modular finite-diference ground-water flow model (MODFLOW)","docAbstract":"A computer program called the Flow and Head Boundary Package (FHB1) was developed for the U.S. Geological Survey three-dimensional finite-difference modular ground-water flow model, commonly referred to as MODFLOW. FHB1 allows MODFLOW users to specify flow or head boundary conditions that vary at times other than starting and ending times of stress periods and associated time steps. Values of flow and (or) head at each time step are calculated by linear interpolation of user- specified values. The ability to assign variable flow and head conditions defined at times not corresponding with the model stress periods allows greater flexibility in simulating natural geohydrologic systems and, at the same time, improves the efficiency of the methods used to represent these systems. The package also provides a way to apply specified-flow and specified-head boundaries in embedded, or nested, smaller-scale models using flow and (or) head values from larger-scale models. Using FHB1, the two models can have different simulation stress periods and time steps. Specification of variable-flow pumped wells in ground-water models is another example application.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey,","doi":"10.3133/ofr97571","issn":"0094-9140","usgsCitation":"Leake, S.A., and Lilly, M.R., 1997, Documentation of computer program (FHB1) for assignment of transient specified-flow and specified-head boundaries in applications of the modular finite-diference ground-water flow model (MODFLOW): U.S. Geological Survey Open-File Report 97-571, 50 p. , https://doi.org/10.3133/ofr97571.","productDescription":"50 p. ","costCenters":[],"links":[{"id":156686,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1997/0571/report-thumb.jpg"},{"id":52937,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1997/0571/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a62e4b07f02db636231","contributors":{"authors":[{"text":"Leake, Stanley A. 0000-0003-3568-2542 saleake@usgs.gov","orcid":"https://orcid.org/0000-0003-3568-2542","contributorId":1846,"corporation":false,"usgs":true,"family":"Leake","given":"Stanley","email":"saleake@usgs.gov","middleInitial":"A.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":190541,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lilly, Michael R.","contributorId":65494,"corporation":false,"usgs":true,"family":"Lilly","given":"Michael","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":190542,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":28105,"text":"wri974156 - 1997 - Hydrogeology and water chemistry of Montezuma Well in Montezuma Castle National Monument and surrounding area, Arizona","interactions":[],"lastModifiedDate":"2012-02-02T00:08:41","indexId":"wri974156","displayToPublicDate":"1998-05-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"97-4156","title":"Hydrogeology and water chemistry of Montezuma Well in Montezuma Castle National Monument and surrounding area, Arizona","docAbstract":"Increasing population and associated residential and commercial development have greatly increased water use and consumption in the Verde Valley near Montezuma Well, a unit of Montezuma Castle National Monument in central Arizona. Flow from Montezuma Well and water levels in eight wells that are measured annually do not indicate that the ground-water system has been affected by development. Additional data are needed to develop an adequate ground-water monitoring program so that future effects of development can be detected. Monitoring the ground-water system would detect changes in discharge from the Montezuma Well or changes in the ground-water system that might indicate a potential change of flow to the well.\r\nWater samples were collected, and field measurements of specific conductance, pH, temperature, and dissolved oxygen were made throughout the pond at Montezuma Well during an exploration in May 1991. The exploration included two fissures in the bottom of the pond that were filled with sand. The sand in the fissures was kept in suspension by water entering the pond. Water chemistry indicates that the ground water from the area is a mixed combination of calcium, magnesium, sodium, and bicarbonate type water. The analyses for 18O/16O and 2H/1H show that the water from the wells and springs in the area, including Montezuma Well, has been exposed to similar environmental conditions and could have had similar flow paths. The MODFLOW finite-difference ground-water model was used to develop an uncalibrated interpretive model to study possible mechanisms for discharge of water at Montezuma Well. The study presents the hypothesis that ground water in the Supai Formation is the source of discharge to Montezuma Well because of the differences between the surface elevation of the pond at Montezuma Well and the stage in the adjacent Wet Beaver Creek. A series of simulations shows that upward flow from the Supai Formation is a possible mechanism for discharge to Montezuma Well, and that a geologic structure in the Supai Formation could play a role in the upward movement of water to Montezuma Well.\r\nThe mechanism for inflow from the Verde Formation is not understood; however, this study concludes that the Verde Formation, Supai Formation, and other underlying rock units are probably the sources of water to Montezuma Well.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri974156","usgsCitation":"Konieczki, A.D., and Leake, S.A., 1997, Hydrogeology and water chemistry of Montezuma Well in Montezuma Castle National Monument and surrounding area, Arizona: U.S. Geological Survey Water-Resources Investigations Report 97-4156, v, 49 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri974156.","productDescription":"v, 49 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":124806,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1997/4156/report-thumb.jpg"},{"id":56930,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1997/4156/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adae4b07f02db6854f9","contributors":{"authors":[{"text":"Konieczki, Alice D.","contributorId":69594,"corporation":false,"usgs":true,"family":"Konieczki","given":"Alice","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":199227,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leake, Stanley A. 0000-0003-3568-2542 saleake@usgs.gov","orcid":"https://orcid.org/0000-0003-3568-2542","contributorId":1846,"corporation":false,"usgs":true,"family":"Leake","given":"Stanley","email":"saleake@usgs.gov","middleInitial":"A.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":199226,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":24099,"text":"ofr97240 - 1997 - User's guide for MODTOOLS: Computer programs for translating data of MODFLOW and MODPATH into geographic information system files","interactions":[],"lastModifiedDate":"2015-10-27T16:55:51","indexId":"ofr97240","displayToPublicDate":"1998-03-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"97-240","title":"User's guide for MODTOOLS: Computer programs for translating data of MODFLOW and MODPATH into geographic information system files","docAbstract":"<p>MODTOOLS is a set of computer programs for translating data of the ground-water model, MODFLOW, and the particle-tracker, MODPATH, into a Geographic Information System (GIS). MODTOOLS translates data into a GIS software called ARC/INFO. MODFLOW is the recognized name for the U.S. Geological Survey Modular Three-Dimensional Finite-Difference Ground-Water Model. MODTOOLS uses the data arrays input to or output by MODFLOW during a ground-water flow simulation to construct several types of GIS output files. MODTOOLS can also be used to translate data from MODPATH into GIS files. MODPATH and its companion program, MODPATH-PLOT, are collectively called the U.S. Geological Survey Three-Dimensional Particle Tracking Post-Processing Programs. MODPATH is used to calculate ground-water flow paths using the results of MODFLOW and MODPATH-PLOT can be used to display the flow paths in various ways.</p>\n<p>MODTOOLS uses the particle data calculated by MODPATH to construct several types of GIS output. MODTOOLS uses particle information recorded by MODPATH such as the row, column, or layer of the model grid, to generate a set of characteristics associated with each particle. The user can choose from the set of characteristics associated with each particle and use the capabilities of the GIS to selectively trace the movement of water discharging from specific cells in the model grid. MODTOOLS allows the hydrogeologist to utilize the capabilities of the GIS to graphically combine the results of the particle-tracking analysis, which facilitates the analysis and understanding of complex ground-water flow systems.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Portland, OR","doi":"10.3133/ofr97240","issn":"0094-9140","usgsCitation":"Orzol, L.L., 1997, User's guide for MODTOOLS: Computer programs for translating data of MODFLOW and MODPATH into geographic information system files: U.S. Geological Survey Open-File Report 97-240, vii, 89 p., https://doi.org/10.3133/ofr97240.","productDescription":"vii, 89 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":156107,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1997/0240/report-thumb.jpg"},{"id":53257,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1997/0240/report.pdf","text":"Report","size":"899.03 KB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a17e4b07f02db603f01","contributors":{"authors":[{"text":"Orzol, Leonard L. 0000-0001-7585-4295 llorzol@usgs.gov","orcid":"https://orcid.org/0000-0001-7585-4295","contributorId":4561,"corporation":false,"usgs":true,"family":"Orzol","given":"Leonard","email":"llorzol@usgs.gov","middleInitial":"L.","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":191313,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":21847,"text":"ofr97121 - 1997 - A Graphical-User Interface for the U.S. Geological Survey modular three-dimensional finite-difference ground-water flow model (MODFLOW-96) using Argus Numerical Environments","interactions":[],"lastModifiedDate":"2012-02-02T00:07:42","indexId":"ofr97121","displayToPublicDate":"1997-08-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"97-121","title":"A Graphical-User Interface for the U.S. Geological Survey modular three-dimensional finite-difference ground-water flow model (MODFLOW-96) using Argus Numerical Environments","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr97121","issn":"0566-8174","usgsCitation":"Shapiro, A., Margolin, J., Dolev, S., and Ben-Israel, Y., 1997, A Graphical-User Interface for the U.S. Geological Survey modular three-dimensional finite-difference ground-water flow model (MODFLOW-96) using Argus Numerical Environments: U.S. Geological Survey Open-File Report 97-121, vi, 50 p. :ill. ;28 cm., https://doi.org/10.3133/ofr97121.","productDescription":"vi, 50 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":153181,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1997/0121/report-thumb.jpg"},{"id":51331,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1997/0121/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4957e4b0b290850ef133","contributors":{"authors":[{"text":"Shapiro, A.M. 0000-0002-6425-9607","orcid":"https://orcid.org/0000-0002-6425-9607","contributorId":88384,"corporation":false,"usgs":true,"family":"Shapiro","given":"A.M.","affiliations":[],"preferred":true,"id":185953,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Margolin, Joshua","contributorId":49390,"corporation":false,"usgs":true,"family":"Margolin","given":"Joshua","email":"","affiliations":[],"preferred":false,"id":185952,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dolev, Shahar","contributorId":8880,"corporation":false,"usgs":true,"family":"Dolev","given":"Shahar","email":"","affiliations":[],"preferred":false,"id":185950,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ben-Israel, Yaacov","contributorId":38595,"corporation":false,"usgs":true,"family":"Ben-Israel","given":"Yaacov","email":"","affiliations":[],"preferred":false,"id":185951,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70019636,"text":"70019636 - 1997 - Simulating reservoir leakage in ground-water models","interactions":[],"lastModifiedDate":"2024-03-08T01:16:35.750417","indexId":"70019636","displayToPublicDate":"1997-01-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Simulating reservoir leakage in ground-water models","docAbstract":"<div class=\"abstract-group \"><div class=\"article-section__content en main\"><p>Leakage to ground water resulting from the expansion and contraction of reservoirs cannot be easily simulated by most ground-water flow models. An algorithm, entitled the Reservoir Package, was developed for the United States Geological Survey (USGS) three-dimensional finite-difference modular ground-water flow model MODFLOW. The Reservoir Package automates the process of specifying head-dependent boundary cells, eliminating the need to divide a simulation into many stress periods while improving accuracy in simulating changes in ground-water levels resulting from transient reservoir stage. Leakage between the reservoir and the underlying aquifer is simulated for each model cell corrresponding to the inundated area by multiplying the head difference between the reservoir and the aquifer with the hydraulic conductance of the reservoir-bed sediments.</p></div></div>","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1997.tb00158.x","issn":"0017467X","usgsCitation":"Fenske, J., Leake, S.A., and Prudic, D.E., 1997, Simulating reservoir leakage in ground-water models: Groundwater, v. 35, no. 5, p. 895-897, https://doi.org/10.1111/j.1745-6584.1997.tb00158.x.","productDescription":"3 p.","startPage":"895","endPage":"897","numberOfPages":"3","costCenters":[],"links":[{"id":228284,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-08-04","publicationStatus":"PW","scienceBaseUri":"505b8fc8e4b08c986b319125","contributors":{"authors":[{"text":"Fenske, J.P.","contributorId":82345,"corporation":false,"usgs":true,"family":"Fenske","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":383389,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leake, S. A.","contributorId":52164,"corporation":false,"usgs":true,"family":"Leake","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":383388,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Prudic, David E. deprudic@usgs.gov","contributorId":3430,"corporation":false,"usgs":true,"family":"Prudic","given":"David","email":"deprudic@usgs.gov","middleInitial":"E.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":383387,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70019736,"text":"70019736 - 1997 - Effects of unsaturated zone on aquifer test analysis in a shallow-aquifer system","interactions":[],"lastModifiedDate":"2024-03-08T01:11:57.663466","indexId":"70019736","displayToPublicDate":"1997-01-01T00:00:00","publicationYear":"1997","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Effects of unsaturated zone on aquifer test analysis in a shallow-aquifer system","docAbstract":"<p>A comparison between two hypothetical flow models of an unconfined aquifer, one saturated and the other variably saturated, indicates that the variably saturated model which explicitly models drainage from the unsaturated zone provides a better conceptual framework for analyzing unconfined aquifer test data and better estimates of the lateral and vertical hydraulic conductivity in fine-grained sands. Explicitly accounting for multiple aquifers, well-bore storage, and the effects of delayed drainage from the unsaturated zone increases confidence in aquifer property estimates by removing some assumptions and allowing for the inclusion of early time data and water-table observations in an aquifer test analysis. The inclusion of the unsaturated zone expands the number of parameters to be estimated, but reasonable estimates of lateral and vertical hydraulic conductivity and specific storage of the unconfined aquifer can be obtained. For the cases examined, only the van Genuchten parameter a needed to be determined by the test, because the parameters n and 9r had a minimal effect on the estimates of hydraulic conductivities, and literature values could be used for these parameters. Estimates of lateral and vertical hydraulic conductivity using MODFLOW were not as good as the VS2DT based estimates and differed from the known values by as much as 30 percent.</p>","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1997.tb00112.x","issn":"0017467X","usgsCitation":"Halford, K.J., 1997, Effects of unsaturated zone on aquifer test analysis in a shallow-aquifer system: Groundwater, v. 35, no. 3, p. 512-522, https://doi.org/10.1111/j.1745-6584.1997.tb00112.x.","productDescription":"11 p.","startPage":"512","endPage":"522","numberOfPages":"11","costCenters":[],"links":[{"id":227931,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"3","noUsgsAuthors":false,"publicationDate":"2005-08-04","publicationStatus":"PW","scienceBaseUri":"505a081ce4b0c8380cd519a1","contributors":{"authors":[{"text":"Halford, K. J. 0000-0002-7322-1846","orcid":"https://orcid.org/0000-0002-7322-1846","contributorId":61077,"corporation":false,"usgs":true,"family":"Halford","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":383746,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":28109,"text":"wri964267 - 1996 - A three-dimensional method-of-characteristics solute-transport model (MOC3D)","interactions":[],"lastModifiedDate":"2019-12-05T16:34:31","indexId":"wri964267","displayToPublicDate":"1997-08-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"96-4267","title":"A three-dimensional method-of-characteristics solute-transport model (MOC3D)","docAbstract":"<p>This report presents a model, MOC3D, that simulates three-dimensional solute transport in flowing ground water. The model computes changes in concentration of a single dissolved chemical constituent over time that are caused by advective transport, hydrodynamic dispersion (including both mechanical dispersion and diffusion), mixing (or dilution) from fluid sources, and mathematically simple chemical reactions (including linear sorption, which is represented by a retardation factor, and decay). The transport model is integrated with MODFLOW, a three-dimensional ground-water flow model that uses implicit finite-difference methods to solve the transient flow equation. MOC3D uses the method of characteristics to solve the transport equation on the basis of the hydraulic gradients computed with MODFLOW for a given time step. This implementation of the method of characteristics uses particle tracking to represent advective transport and explicit finite-difference methods to calculate the effects of other processes. However, the explicit procedure has several stability criteria that may limit the size of time increments for solving the transport equation; these are automatically determined by the program. For improved efficiency, the user can apply MOC3D to a subgrid of the primary MODFLOW grid that is used to solve the flow equation. However, the transport subgrid must have uniform grid spacing along rows and columns. The report includes a description of the theoretical basis of the model, a detailed description of input requirements and output options, and the results of model testing and evaluation. The model was evaluated for several problems for which exact analytical solutions are available and by benchmarking against other numerical codes for selected complex problems for which no exact solutions are available. These test results indicate that the model is very accurate for a wide range of conditions and yields minimal numerical dispersion for advection-dominated problems. Mass-balance errors are generally less than 10 percent, and tend to decrease and stabilize with time. </p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri964267","usgsCitation":"Konikow, L.F., Goode, D., and Hornberger, G., 1996, A three-dimensional method-of-characteristics solute-transport model (MOC3D): U.S. Geological Survey Water-Resources Investigations Report 96-4267, Report: x, 87 p.; HTML, https://doi.org/10.3133/wri964267.","productDescription":"Report: x, 87 p.; HTML","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":119971,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4267/report-thumb.jpg"},{"id":2162,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://water.usgs.gov/software/moc3d.html","linkFileType":{"id":5,"text":"html"}},{"id":56938,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4267/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b16e4b07f02db6a563a","contributors":{"authors":[{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":199233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goode, D.J. 0000-0002-8527-2456","orcid":"https://orcid.org/0000-0002-8527-2456","contributorId":95512,"corporation":false,"usgs":true,"family":"Goode","given":"D.J.","affiliations":[],"preferred":false,"id":199235,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hornberger, G.Z.","contributorId":71582,"corporation":false,"usgs":true,"family":"Hornberger","given":"G.Z.","email":"","affiliations":[],"preferred":false,"id":199234,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":23289,"text":"ofr96485 - 1996 - User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model","interactions":[],"lastModifiedDate":"2012-02-02T00:08:03","indexId":"ofr96485","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-485","title":"User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96485","issn":"0094-9140","usgsCitation":"Harbaugh, A., and McDonald, M., 1996, User's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 96-485, vi, 56 p. ;28 cm., https://doi.org/10.3133/ofr96485.","productDescription":"vi, 56 p. ;28 cm.","costCenters":[],"links":[{"id":156054,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0485/report-thumb.jpg"},{"id":52574,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0485/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a17e4b07f02db604034","contributors":{"authors":[{"text":"Harbaugh, A.W.","contributorId":15208,"corporation":false,"usgs":true,"family":"Harbaugh","given":"A.W.","email":"","affiliations":[],"preferred":false,"id":189820,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McDonald, M.G.","contributorId":37716,"corporation":false,"usgs":true,"family":"McDonald","given":"M.G.","email":"","affiliations":[],"preferred":false,"id":189821,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":23288,"text":"ofr96486 - 1996 - Programmer's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model","interactions":[],"lastModifiedDate":"2012-02-02T00:08:03","indexId":"ofr96486","displayToPublicDate":"1997-07-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-486","title":"Programmer's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96486","issn":"0094-9140","usgsCitation":"Harbaugh, A., and McDonald, M., 1996, Programmer's documentation for MODFLOW-96, an update to the U.S. Geological Survey modular finite-difference ground-water flow model: U.S. Geological Survey Open-File Report 96-486, vii, 220 p. ;28 cm., https://doi.org/10.3133/ofr96486.","productDescription":"vii, 220 p. ;28 cm.","costCenters":[],"links":[{"id":156053,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0486/report-thumb.jpg"},{"id":52573,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0486/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9be4b07f02db65e0db","contributors":{"authors":[{"text":"Harbaugh, A.W.","contributorId":15208,"corporation":false,"usgs":true,"family":"Harbaugh","given":"A.W.","email":"","affiliations":[],"preferred":false,"id":189818,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McDonald, M.G.","contributorId":37716,"corporation":false,"usgs":true,"family":"McDonald","given":"M.G.","email":"","affiliations":[],"preferred":false,"id":189819,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":2038,"text":"wsp2475 - 1996 - Descriptions of anisotropy and heterogeneity and their effect on ground-water flow and areas of contribution to public supply wells in a karst carbonate aquifer system","interactions":[],"lastModifiedDate":"2012-02-02T00:05:19","indexId":"wsp2475","displayToPublicDate":"1997-06-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2475","title":"Descriptions of anisotropy and heterogeneity and their effect on ground-water flow and areas of contribution to public supply wells in a karst carbonate aquifer system","docAbstract":"MODFLOW and MODPATH numerical models were used to generate areas of contribution to public supply wells for simulated hypothetical anisotropy and heterogeneous carbonate aquifer systems. The simulations incorporated, to varying degrees, the anisotropy and heterogeneity observed in a karst carbonate aquifer system. These include: isotropic and homogeneous single-layer system, doubly-porous single-layer system, and interconnected vertically and horizontally heterogeneous system. The study indicated that the distribution and nature of aquifer anisotropy and heterogeneity will affect the simulated size, shape, and orientation of areas of contribution in karst carbonate aquifer systems.","language":"ENGLISH","publisher":"U.S. G.P.O. ;\r\nU.S. Geological Survey, Branch of Information Services [distributor],","doi":"10.3133/wsp2475","usgsCitation":"Knochenmus, L.A., and Robinson, J.L., 1996, Descriptions of anisotropy and heterogeneity and their effect on ground-water flow and areas of contribution to public supply wells in a karst carbonate aquifer system: U.S. Geological Survey Water Supply Paper 2475, iv, 47 p. :ill., maps. ;28 cm., https://doi.org/10.3133/wsp2475.","productDescription":"iv, 47 p. :ill., maps. ;28 cm.","costCenters":[],"links":[{"id":25,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wsp2475/","linkFileType":{"id":5,"text":"html"}},{"id":137691,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9be4b07f02db65df1d","contributors":{"authors":[{"text":"Knochenmus, Lari A. lari@usgs.gov","contributorId":301,"corporation":false,"usgs":true,"family":"Knochenmus","given":"Lari","email":"lari@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":144569,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robinson, James L.","contributorId":82284,"corporation":false,"usgs":true,"family":"Robinson","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":144570,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":24570,"text":"ofr96455 - 1996 - Documentation of programs used to determine a wetlands hydroperiod from model-simulated water-surface elevations","interactions":[],"lastModifiedDate":"2012-02-02T00:08:00","indexId":"ofr96455","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-455","title":"Documentation of programs used to determine a wetlands hydroperiod from model-simulated water-surface elevations","docAbstract":"A technique has been developed to determine a wetlands hydroperiod by comparing simulated water levels from a ground-water flow model and land- surface elevation data through a geographic information system. The simulated water levels are compared with the land-surface elevation data to determine the height of the water surface above or below land surface for the area of interest. Finally, the hydroperiod is determined for established time periods using criteria specified by the user. The program application requires the use of geographic information system software (ARC/INFO), including the TIN and GRID subsystems of the software. The application consists of an ANSI compatible C program to translate ground- water data output from the U.S. Geological Survey modular three-dimensional, finite-difference, ground-water flow model (MODFLOW) into a format that can be used as input for the geographic information system programs (AML's). The application uses ARC/INFO AML programs and ARC/INFO menu interface programs to create digital spatial data layers of the land surface and water surface and to determine the hydroperiod. The technique can be used to evaluate and manage wetlands hydrology.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96455","issn":"0094-9140","usgsCitation":"Sonenshein, R., 1996, Documentation of programs used to determine a wetlands hydroperiod from model-simulated water-surface elevations: U.S. Geological Survey Open-File Report 96-455, iii, 47 p. :ill. ;28 cm., https://doi.org/10.3133/ofr96455.","productDescription":"iii, 47 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":155078,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0455/report-thumb.jpg"},{"id":53619,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0455/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db63615e","contributors":{"authors":[{"text":"Sonenshein, R.S.","contributorId":10415,"corporation":false,"usgs":true,"family":"Sonenshein","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":192172,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":30036,"text":"wri964118 - 1996 - Description and field analysis of a coupled ground-water/surface-water flow model (MODFLOW/BRANCH) with modifications for structures and wetlands in southern Dade County, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:08:51","indexId":"wri964118","displayToPublicDate":"1997-03-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"96-4118","title":"Description and field analysis of a coupled ground-water/surface-water flow model (MODFLOW/BRANCH) with modifications for structures and wetlands in southern Dade County, Florida","docAbstract":"A coupled surface-water model (BRANCH) and ground-water model (MODFLOW) model were tested to simulate the interacting wetlands/surface-water/ ground-water system of southern Dade County. Several options created for the MODFLOW ground- ground-water model were used in representing this field situation. The primary option is the MODBRANCH interfacing software, which allows leakage to be accounted for between the MODFLOW ground-water model and the BRANCH dynamic model for simulation of flow in an interconnected network of open channels. A modification to an existing software routine, which is referred to as BCF2, allows cells in MODFLOW to rewet when dry--a requirement in representing the seasonal wetlands in Dade County. A companion to BCF2 is the modified evapotranspiration routine EVT2. The EVT2 routine changes the cells where evapotranspiration occurs, depending on which cells are wet. The Streamlink package represents direct connections between the canals and wetlands at locations where canals open directly into overland flow. Within the BRANCH model, the capability to represent the numerous hydraulic structures, gated spillways, gated culverts, and pumps was added. The application of these modifications to model surface-water/ground-water interactions in southern Dade County demonstrated the usefulness of the coupled MODFLOW/BRANCH model. Ground-water and surface-water flows are both simulated with dynamic models. Flow exchange between models, intermittent wetting and drying, evapotranspiration, and hydraulic structure operations are all represented appropriately. Comparison was made with a simulation using the RIV1 package instead of MODBRANCH to represent the canals. RIV1 represents the canals by user-defined stages, and computes leakage to the aquifer. Greater accuracy in reproducing measured ground- water heads was achieved with MODBRANCH, which also computes dynamic flow conditions in the canals, unlike RIV1. The surface-water integrated flow and transport two-dimensional model (SWIFT2D) was also applied to the southeastern coastal wetlands for comparison with the wetlands flow approximation made in MODFLOW. MODFLOW simulates the wetlands as a highly conductive upper layer of the aquifer, whereas SWIFT2D solves the hydrodynamic equations. Comparison in this limited test demonstrated no specific advantage for either method of representation. However, much additional testing on a wider variety of geometric and hydraulic situations, such as in areas with greater tidal or other dynamic forcing effects, is needed to make definite conclusions. A submodel of the existing southern Dade County model schematization was used to examine water-delivery alternatives proposed by the U.S. Army Corps of Engineers. For this application, the coupled MODFLOW/BRANCH model was used as a design tool. A new canal and several pumps to be tested to maintain lower water levels in a residential area (while water levels in the Everglades are raised) were added to the model schematization. The pumps were assumed to have infinite supply capacity in the model so that their maximum pumping rates during the simulation could be used to determine pump sizes.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nU.S. Geological Survey, Branch of Information Services [distributor],","doi":"10.3133/wri964118","usgsCitation":"Swain, E., Howie, B., and Dixon, J., 1996, Description and field analysis of a coupled ground-water/surface-water flow model (MODFLOW/BRANCH) with modifications for structures and wetlands in southern Dade County, Florida: U.S. Geological Survey Water-Resources Investigations Report 96-4118, iv, 67 p. :ill. (some col.), maps (some col.) 28 cm., https://doi.org/10.3133/wri964118.","productDescription":"iv, 67 p. :ill. (some col.), maps (some col.) 28 cm.","costCenters":[],"links":[{"id":123743,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4118/report-thumb.jpg"},{"id":58839,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4118/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab0e4b07f02db66db99","contributors":{"authors":[{"text":"Swain, E.D. 0000-0001-7168-708X","orcid":"https://orcid.org/0000-0001-7168-708X","contributorId":29007,"corporation":false,"usgs":true,"family":"Swain","given":"E.D.","affiliations":[],"preferred":false,"id":202573,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howie, Barbara","contributorId":54248,"corporation":false,"usgs":true,"family":"Howie","given":"Barbara","email":"","affiliations":[],"preferred":false,"id":202574,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dixon, Joann","contributorId":19981,"corporation":false,"usgs":true,"family":"Dixon","given":"Joann","affiliations":[],"preferred":false,"id":202572,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":23021,"text":"ofr96364 - 1996 - Documentation of a computer program (RES1) to simulate leakage from reservoirs using the modular finite-difference ground-water flow model (MODFLOW)","interactions":[],"lastModifiedDate":"2018-01-30T19:20:57","indexId":"ofr96364","displayToPublicDate":"1996-12-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-364","title":"Documentation of a computer program (RES1) to simulate leakage from reservoirs using the modular finite-difference ground-water flow model (MODFLOW)","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr96364","issn":"0094-9140","usgsCitation":"Fenske, J., Leake, S.A., and Prudic, D.E., 1996, Documentation of a computer program (RES1) to simulate leakage from reservoirs using the modular finite-difference ground-water flow model (MODFLOW): U.S. Geological Survey Open-File Report 96-364, vi, 51 p. :ill. ;28 cm., https://doi.org/10.3133/ofr96364.","productDescription":"vi, 51 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":155298,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0364/report-thumb.jpg"},{"id":52404,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0364/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6ae4b07f02db63d223","contributors":{"authors":[{"text":"Fenske, J.P.","contributorId":82345,"corporation":false,"usgs":true,"family":"Fenske","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":189293,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leake, S. A.","contributorId":52164,"corporation":false,"usgs":true,"family":"Leake","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":189292,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Prudic, David E. deprudic@usgs.gov","contributorId":3430,"corporation":false,"usgs":true,"family":"Prudic","given":"David","email":"deprudic@usgs.gov","middleInitial":"E.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":189291,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":28826,"text":"wri954191 - 1996 - Hydrologic and chemical interaction of the Arkansas River and the <i>Equus</i> Beds aquifer between Hutchinson and Wichita, south-central Kansas","interactions":[],"lastModifiedDate":"2017-08-29T11:30:35","indexId":"wri954191","displayToPublicDate":"1996-12-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"95-4191","title":"Hydrologic and chemical interaction of the Arkansas River and the <i>Equus</i> Beds aquifer between Hutchinson and Wichita, south-central Kansas","docAbstract":"<p>Large chloride concentrations in Arkansas River water have the potential to degrade water quality in the adjacent <i>Equus</i> beds aquifer between Hutchinson and Wichita, Kansas. The aquifer is an important source of water for municipal, industrial, agricultural, and domestic uses. </p><p>A three-dimensional, finite-difference, ground-water flow-model program (MODFLOW) was used with data from past studies and data collected during 1988-91 to simulate aquifer and stream conditions during the late 1930's, during 1940-89, and during 1990-2019. Results of ground-water flow-model simulations indicated that declining water levels in the <i>Equus</i> beds aquifer since the 1940's have caused base flow in the Arkansas and Little Arkansas Rivers to decrease. In 1940, the Arkansas and Little Arkansas Rivers had simulated net base-flow gains within the model area of about 21 and about 67 ft<sup>3</sup>/s (cubic feet per second), respectively. By the end of 1989, the Arkansas River had a simulated net base-flow loss of about 52 ft<sup>3</sup>/s, and the Little Arkansas River had a net base-flow gain of about 27 ft<sup>3</sup>/s. Simulations for 1990-2019 showed that the water-level changes in a selected model cell located in the central part of the Wichita well field could range from -0.2 to -78 feet. Waterlevel changes in a selected model cell located near the Arkansas River could range from +1.3 to -1.2 feet. In model simulations where only pumpage varied, net base-flow loss from the Arkansas River to the aquifer ranged from about 59 ft<sup>3</sup>/s (no increase in pumpage since 1989) to 117 ft<sup>3</sup>/s (a 3-percent per year increase in pumpage since 1989) by 2019. </p><p>Assuming a chloride concentration of 630 milligrams per liter, the median concentration in Arkansas River water collected during 1988-91, the quantity of chloride discharged from the Arkansas River to the aquifer was estimated to have increased from about 21 tons per day in 1940 to about 100 tons per day in 1989. By 2019, chloride discharge was indicated to range from about 110 tons per day (associated with no increase in pumpage since 1989) to 200 tons per day (associated with a 3-percent per year increase in pumpage since 1989). </p><p>A particle-tracking program (MODPATH), which used the results from the flow model, was used to simulate the distribution in the aquifer of chloride from the river during the same time periods. Particle-tracking simulations show that, during 1940-89, the simulated distribution of particles representing chloride from the Arkansas River expanded from relatively narrow bands near the river to a wider distribution within the aquifer and the Wichita well field. Particle-tracking simulations indicate that chloride discharge from the Arkansas River may have reached the edge of the Wichita well field as early as 1963.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri954191","collaboration":"Prepared in cooperation with the Kansas Water Office, the Equus Beds Groundwater Management District No. 2, and the Bureau of Reclamation, U.S. Department of the Interior","usgsCitation":"Myers, N.C., Hargadine, G., and Gillespie, J.B., 1996, Hydrologic and chemical interaction of the Arkansas River and the <i>Equus</i> Beds aquifer between Hutchinson and Wichita, south-central Kansas: U.S. Geological Survey Water-Resources Investigations Report 95-4191, Report: viii, 100 p.; 2 Plates: 27.30 x 41.80 inches and 34.95 x 36.18 inches, https://doi.org/10.3133/wri954191.","productDescription":"Report: viii, 100 p.; 2 Plates: 27.30 x 41.80 inches and 34.95 x 36.18 inches","costCenters":[],"links":[{"id":57686,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1995/4191/report.pdf","text":"Report","size":"21.88 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":118897,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1995/4191/report-thumb.jpg"},{"id":344896,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1995/4191/plate-1.pdf","text":"Plate 1","size":"2.86 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Plate 1"},{"id":344897,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1995/4191/plate-2.pdf","text":"Plate 2","size":"2.92 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Plate 2"}],"country":"United States","state":"Kansas","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -97.2,\n              37.7\n            ],\n            [\n              -98.1,\n              37.7\n            ],\n            [\n              -98.1,\n              38.3\n            ],\n            [\n              -97.2,\n              38.3\n            ],\n            [\n              -97.2,\n              37.7\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db6117d2","contributors":{"authors":[{"text":"Myers, N. C.","contributorId":13622,"corporation":false,"usgs":true,"family":"Myers","given":"N.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":200465,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hargadine, G.D.","contributorId":93927,"corporation":false,"usgs":true,"family":"Hargadine","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":200467,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gillespie, Joe B.","contributorId":21194,"corporation":false,"usgs":true,"family":"Gillespie","given":"Joe","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":200466,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":4722,"text":"twri06A6 - 1996 - A coupled surface-water and ground-water flow model (MODBRANCH) for simulation of stream-aquifer interaction","interactions":[{"subject":{"id":21072,"text":"ofr92138 - 1993 - A coupled surface-water and ground-water flow model for simulation of stream-aquifer interaction","indexId":"ofr92138","publicationYear":"1993","noYear":false,"title":"A coupled surface-water and ground-water flow model for simulation of stream-aquifer interaction"},"predicate":"SUPERSEDED_BY","object":{"id":4722,"text":"twri06A6 - 1996 - A coupled surface-water and ground-water flow model (MODBRANCH) for simulation of stream-aquifer interaction","indexId":"twri06A6","publicationYear":"1996","noYear":false,"title":"A coupled surface-water and ground-water flow model (MODBRANCH) for simulation of stream-aquifer interaction"},"id":1}],"lastModifiedDate":"2012-02-02T00:05:32","indexId":"twri06A6","displayToPublicDate":"1996-08-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":336,"text":"Techniques of Water-Resources Investigations","code":"TWRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"06-A6","title":"A coupled surface-water and ground-water flow model (MODBRANCH) for simulation of stream-aquifer interaction","docAbstract":"Ground-water and surface-water flow models traditionally have been developed separately, with interaction between subsurface flow and streamflow either not simulated at all or accounted for by simple formulations. In areas with dynamic and hydraulically well-connected ground-water and surface-water systems, stream-aquifer interaction should be simulated using deterministic responses of both systems coupled at the stream-aquifer interface. Accordingly, a new coupled ground-water and surface-water model was developed by combining the U.S. Geological Survey models MODFLOW and BRANCH; the interfacing code is referred to as MODBRANCH. MODFLOW is the widely used modular three-dimensional, finite-difference ground-water model, and BRANCH is a one-dimensional numerical model commonly used to simulate unsteady flow in open- channel networks.\r\nMODFLOW was originally written with the River package, which calculates leakage between the aquifer and stream, assuming that the stream's stage remains constant during one model stress period. A simple streamflow routing model has been added to MODFLOW, but is limited to steady flow in rectangular, prismatic channels. To overcome these limitations, the BRANCH model, which simulates unsteady, nonuniform flow by solving the St. Venant equations, was restructured and incorporated into MODFLOW. Terms that describe leakage between stream and aquifer as a function of streambed conductance and differences in aquifer and stream stage were added to the continuity equation in BRANCH. Thus, leakage between the aquifer and stream can be calculated separately in each model, or leakages calculated in BRANCH can be used in MODFLOW. Total mass in the coupled models is accounted for and conserved.\r\nThe BRANCH model calculates new stream stages for each time interval in a transient simulation based on upstream boundary conditions, stream properties, and initial estimates of aquifer heads. Next, aquifer heads are calculated in MODFLOW based on stream stages calculated by BRANCH, aquifer properties, and stresses. This process is repeated until convergence criteria are met for head and stage. Because time steps used in ground-water modeling can be much longer than time intervals used in surface- water simulations, provision has been made for handling multiple BRANCH time intervals within one MODFLOW time step. An option was also added to BRANCH to allow the simulation of channel drying and rewetting. Testing of the coupled model was verified by using data from previous studies; by comparing results with output from a simpler, four-point implicit, open-channel flow model linked with MODFLOW; and by comparison to field studies of L-31N canal in southern Florida.","language":"ENGLISH","publisher":"U.S. G.P.O. ;U.S. Geological Survey, Information Services [distributor],","doi":"10.3133/twri06A6","issn":"0565-596X","usgsCitation":"Swain, E.D., and Wexler, E.J., 1996, A coupled surface-water and ground-water flow model (MODBRANCH) for simulation of stream-aquifer interaction: U.S. Geological Survey Techniques of Water-Resources Investigations 06-A6, ix, 125 p. :ill. ;28 cm., https://doi.org/10.3133/twri06A6.","productDescription":"ix, 125 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":139093,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":350,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/twri/twri6a6/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b26e4b07f02db6afc01","contributors":{"authors":[{"text":"Swain, Eric D. 0000-0001-7168-708X edswain@usgs.gov","orcid":"https://orcid.org/0000-0001-7168-708X","contributorId":1538,"corporation":false,"usgs":true,"family":"Swain","given":"Eric","email":"edswain@usgs.gov","middleInitial":"D.","affiliations":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"preferred":true,"id":149680,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wexler, Eliezer J.","contributorId":99963,"corporation":false,"usgs":true,"family":"Wexler","given":"Eliezer","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":149681,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70018199,"text":"70018199 - 1996 - Two-dimensional advective transport in ground-water flow parameter estimation","interactions":[],"lastModifiedDate":"2019-02-20T07:35:19","indexId":"70018199","displayToPublicDate":"1996-01-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Two-dimensional advective transport in ground-water flow parameter estimation","docAbstract":"Nonlinear regression is useful in ground-water flow parameter estimation, but problems of parameter insensitivity and correlation often exist given commonly available hydraulic-head and head-dependent flow (for example, stream and lake gain or loss) observations. To address this problem, advective-transport observations are added to the ground-water flow, parameter-estimation model MODFLOWP using particle-tracking methods. The resulting model is used to investigate the importance of advective-transport observations relative to head-dependent flow observations when either or both are used in conjunction with hydraulic-head observations in a simulation of the sewage-discharge plume at Otis Air Force Base, Cape Cod, Massachusetts, USA. The analysis procedure for evaluating the probable effect of new observations on the regression results consists of two steps: (1) parameter sensitivities and correlations calculated at initial parameter values are used to assess the model parameterization and expected relative contributions of different types of observations to the regression; and (2) optimal parameter values are estimated by nonlinear regression and evaluated. In the Cape Cod parameter-estimation model, advective-transport observations did not significantly increase the overall parameter sensitivity; however: (1) inclusion of advective-transport observations decreased parameter correlation enough for more unique parameter values to be estimated by the regression; (2) realistic uncertainties in advective-transport observations had a small effect on parameter estimates relative to the precision with which the parameters were estimated; and (3) the regression results and sensitivity analysis provided insight into the dynamics of the ground-water flow system, especially the importance of accurate boundary conditions. In this work, advective-transport observations improved the calibration of the model and the estimation of ground-water flow parameters, and use of regression and related techniques produced significant insight into the physical system.","largerWorkTitle":"National Ground Water Association ","language":"English","doi":"10.1111/j.1745-6584.1996.tb02165.x","issn":"0017467X","usgsCitation":"Anderman, E., Hill, M.C., and Poeter, E.P., 1996, Two-dimensional advective transport in ground-water flow parameter estimation: Ground Water, v. 34, no. 6, p. 1001-1009, https://doi.org/10.1111/j.1745-6584.1996.tb02165.x.","productDescription":"9 p. 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C.","contributorId":48993,"corporation":false,"usgs":true,"family":"Hill","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":378854,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Poeter, E. P.","contributorId":63851,"corporation":false,"usgs":false,"family":"Poeter","given":"E.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":378856,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70018179,"text":"70018179 - 1996 - Unrealistic parameter estimates in inverse modelling: A problem or a benefit for model calibration?","interactions":[],"lastModifiedDate":"2012-03-12T17:19:12","indexId":"70018179","displayToPublicDate":"1996-01-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1934,"text":"IAHS-AISH Publication","active":true,"publicationSubtype":{"id":10}},"title":"Unrealistic parameter estimates in inverse modelling: A problem or a benefit for model calibration?","docAbstract":"Estimation of unrealistic parameter values by inverse modelling is useful for constructed model discrimination. This utility is demonstrated using the three-dimensional, groundwater flow inverse model MODFLOWP to estimate parameters in a simple synthetic model where the true conditions and character of the errors are completely known. When a poorly constructed model is used, unreasonable parameter values are obtained even when using error free observations and true initial parameter values. This apparent problem is actually a benefit because it differentiates accurately and inaccurately constructed models. The problems seem obvious for a synthetic problem in which the truth is known, but are obscure when working with field data. Situations in which unrealistic parameter estimates indicate constructed model problems are illustrated in applications of inverse modelling to three field sites and to complex synthetic test cases in which it is shown that prediction accuracy also suffers when constructed models are inaccurate.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"IAHS-AISH Publication","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01447815","usgsCitation":"Poeter, E.P., and Hill, M.C., 1996, Unrealistic parameter estimates in inverse modelling: A problem or a benefit for model calibration?: IAHS-AISH Publication, v. 237, p. 277-285.","startPage":"277","endPage":"285","numberOfPages":"9","costCenters":[],"links":[{"id":227014,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"237","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbce1e4b08c986b328e53","contributors":{"authors":[{"text":"Poeter, E. P.","contributorId":63851,"corporation":false,"usgs":false,"family":"Poeter","given":"E.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":378777,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hill, M. C.","contributorId":48993,"corporation":false,"usgs":true,"family":"Hill","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":378776,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70018675,"text":"70018675 - 1996 - Stream-aquifer interaction model with diffusive wave routing","interactions":[],"lastModifiedDate":"2024-12-12T16:46:31.351268","indexId":"70018675","displayToPublicDate":"1996-01-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2338,"text":"Journal of Hydraulic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Stream-aquifer interaction model with diffusive wave routing","docAbstract":"<p><span>A practical approach to modeling the hydraulic interaction of a stream and aquifer via streambed leakage is based on the established U.S. Geological Survey (USGS) model, MODFLOW. To represent flood-wave propagation and the associated bank storage, MODFLOW's STREAM module is replaced by the Muskingum-Cunge diffusive-wave-routing scheme. The diffusive wave model closely approximates a dynamic model of a flood wave's speed, shape, and streambed leakage. Because the stream responds more rapidly to disturbances than the aquifer, streambed leakage is calculated at the flood routing time scale in order to properly represent the stream-aquifer coupling. However, both the relative magnitude and timing of aquifer response to a flood wave depend on the strength of this coupling. We find discrepancies in both the flood wave and the streambed leakage when the wave and ground-water motions are evaluated at different time scales. These discrepancies are significant in the case of a strong stream-aquifer coupling, for which equal aquifer and flood-routing time steps may be required. Wave diffusion and bank storage are shown to be comparable in magnitude and should, therefore, be included in stream-aquifer interaction models. Diffusive wave routing more accurately represents wave propagation, bed leakage, and aquifer response if short aquifer time steps are taken, and is preferable to the STREAM module for simulating short time transients. However, the STREAM module is useful for simulating large time frames if accurate modeling of the flood-wave propagation is not required.</span></p>","language":"English","publisher":"ASCE","doi":"10.1061/(ASCE)0733-9429(1996)122:4(210)","issn":"07339429","usgsCitation":"Perkins, S., and Koussis, A.D., 1996, Stream-aquifer interaction model with diffusive wave routing: Journal of Hydraulic Engineering, v. 122, no. 4, p. 210-218, https://doi.org/10.1061/(ASCE)0733-9429(1996)122:4(210).","productDescription":"9 p.","startPage":"210","endPage":"218","numberOfPages":"9","costCenters":[],"links":[{"id":227310,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"122","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9a92e4b08c986b31c9f0","contributors":{"authors":[{"text":"Perkins, S.P.","contributorId":12211,"corporation":false,"usgs":true,"family":"Perkins","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":380419,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Koussis, Antonis D.","contributorId":99299,"corporation":false,"usgs":false,"family":"Koussis","given":"Antonis","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":380420,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":44374,"text":"ofr96651 - 1996 - Evaluation of shorelines along Lake Mohave, Lake Mead National Recreation Area, Nevada and Arizona","interactions":[],"lastModifiedDate":"2012-02-10T00:10:10","indexId":"ofr96651","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1996","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"96-651","title":"Evaluation of shorelines along Lake Mohave, Lake Mead National Recreation Area, Nevada and Arizona","docAbstract":"The hdpw (head-in-a-pumping-well) program described in this report is a  post-processor that calculates the head in a pumping well based on thesimulated head at a finite-difference model cell that contains the well.  The calculations are based on the Thiem equation. The hdpw code works with  the U.S. Geological Survey modular finite-difference ground-water flow model,  which is commonly called MODFLOW. The hdpw code is a complete program that has  incorporated many of MODFLOW subroutines to read data. Code was added to  the well package to calculate the head and drawdown in a fully-penetrating  well of finite radius.","language":"ENGLISH","doi":"10.3133/ofr96651","usgsCitation":"Workman, J.B., 1996, Evaluation of shorelines along Lake Mohave, Lake Mead National Recreation Area, Nevada and Arizona: U.S. Geological Survey Open-File Report 96-651, 1 map : col. ; 113 x 46 cm., folded in envelope 22 x 24 cm. + 1 text (4 leaves ; 28 cm.), https://doi.org/10.3133/ofr96651.","productDescription":"1 map : col. ; 113 x 46 cm., folded in envelope 22 x 24 cm. + 1 text (4 leaves ; 28 cm.)","costCenters":[],"links":[{"id":168839,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1996/0651/report-thumb.jpg"},{"id":81662,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1996/0651/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":81663,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1996/0651/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"100000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.86666666666666,35 ], [ -114.86666666666666,36 ], [ -114.36749999999999,36 ], [ -114.36749999999999,35 ], [ -114.86666666666666,35 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fab96","contributors":{"authors":[{"text":"Workman, Jeremiah B. 0000-0001-7816-6420 jworkman@usgs.gov","orcid":"https://orcid.org/0000-0001-7816-6420","contributorId":714,"corporation":false,"usgs":true,"family":"Workman","given":"Jeremiah","email":"jworkman@usgs.gov","middleInitial":"B.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":229659,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":22309,"text":"ofr95735 - 1995 - Listings of model values for the simulation of ground-water flow in the Cimarron River alluvium and terrace deposits from Freedom to Guthrie, Oklahoma","interactions":[],"lastModifiedDate":"2012-02-02T00:07:56","indexId":"ofr95735","displayToPublicDate":"1997-05-01T00:00:00","publicationYear":"1995","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"95-735","title":"Listings of model values for the simulation of ground-water flow in the Cimarron River alluvium and terrace deposits from Freedom to Guthrie, Oklahoma","docAbstract":"This report contains MODFLOW input and output listings for the simulation of ground-water flow in alluvium and terrace deposits associated with the Cimarron River from Freedom to Guthrie, Oklahoma. These values are to be used in conjuction with the report, 'Geohydrology of alluvium and terrace deposits of the Cimarron River from Freedom to Guthrie, Oklahoma,' by G.P. Adams and D.L. Bergman, published as U.S. Geological Survey Water-Resources Investigatons Report 95-4066. The simulation used a digital ground-water flow model and was evaluated by a management and statistical program.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nEarth Science Information Center, Open-File Reports Section,","doi":"10.3133/ofr95735","issn":"0094-9140","usgsCitation":"Adams, G.P., 1995, Listings of model values for the simulation of ground-water flow in the Cimarron River alluvium and terrace deposits from Freedom to Guthrie, Oklahoma: U.S. Geological Survey Open-File Report 95-735, iii, 111 p. :map ;28 cm. +1 computer disk (3 1/2 in.), https://doi.org/10.3133/ofr95735.","productDescription":"iii, 111 p. :map ;28 cm. +1 computer disk (3 1/2 in.)","costCenters":[],"links":[{"id":154211,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1995/0735/report-thumb.jpg"},{"id":51723,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1995/0735/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a4edb","contributors":{"authors":[{"text":"Adams, G. P.","contributorId":60256,"corporation":false,"usgs":true,"family":"Adams","given":"G.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":188007,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":23513,"text":"ofr94533 - 1995 - Documentation of AIR3D, an adaptation of the ground-water-flow code MODFLOW to simulate three-dimensional air flow in the unsaturated zone","interactions":[],"lastModifiedDate":"2020-04-11T17:00:43.725705","indexId":"ofr94533","displayToPublicDate":"1996-03-01T00:00:00","publicationYear":"1995","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"94-533","title":"Documentation of AIR3D, an adaptation of the ground-water-flow code MODFLOW to simulate three-dimensional air flow in the unsaturated zone","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr94533","issn":"0094-9140","collaboration":"The USGS does not support this software or technical questions for the software associated with the publication.","usgsCitation":"Joss, C., and Baehr, A.L., 1995, Documentation of AIR3D, an adaptation of the ground-water-flow code MODFLOW to simulate three-dimensional air flow in the unsaturated zone: U.S. Geological Survey Open-File Report 94-533, Report: viii, 164 p.; Application Site, https://doi.org/10.3133/ofr94533.","productDescription":"Report: viii, 164 p.; Application Site","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":277712,"type":{"id":4,"text":"Application Site"},"url":"https://pubs.usgs.gov/of/1994/0533/application.zip"},{"id":52803,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1994/0533/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":155662,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1994/0533/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6be4b07f02db63d70d","contributors":{"authors":[{"text":"Joss, C.J.","contributorId":36964,"corporation":false,"usgs":true,"family":"Joss","given":"C.J.","affiliations":[],"preferred":false,"id":190234,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baehr, A. L.","contributorId":59831,"corporation":false,"usgs":true,"family":"Baehr","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":190235,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":30002,"text":"wri944223 - 1995 - Hydrogeology and simulation of ground-water flow in the Eutaw-McShan aquifer and in the Tuscaloosa aquifer system in northeastern Mississippi","interactions":[],"lastModifiedDate":"2023-03-14T18:33:38.551861","indexId":"wri944223","displayToPublicDate":"1995-09-01T00:00:00","publicationYear":"1995","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"94-4223","title":"Hydrogeology and simulation of ground-water flow in the Eutaw-McShan aquifer and in the Tuscaloosa aquifer system in northeastern Mississippi","docAbstract":"The Eutaw-McShan aquifer and Tuscaloosa aquifer system in northeastern Mississippi were investi- gated to better understand the hydrogeology and the ground-water flow in and between the aquifers. A numerical model was developed to simulate ground- water flow for prepumping and pumping conditions, and model simulatons projected the possible effects of increased ground-water withdrawals. The five aquifers studied, from youngest to oldest, are the Eutaw-McShan, Gordo, Coker, massive sand, and the Lower Cretaceous aquifers. The finite-difference computer code MODFLOW was used to represent the flow system. The model grid covers 33,440 square miles, primarily in northeastern Mississippi, but includes parts of northwestern Alabama, southwestern Tennessee, and eastern Arkansas. A comparison of the simulated predevelopment and 1992 potentiometric surfaces for the aquifers shows an overall water- level decline. Simulated water levels declined an average of 53 and 44 feet in the confined parts of the Eutaw-McShan and Gordo aquifers, respectively. However, the area near Tupelo had a significant rise in water levels due to decreased pumpage from the Eutaw-McShan and Gordo aquifers compared to the simulated potentiometric surface for 1978.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri944223","usgsCitation":"Strom, E.W., and Mallory, M.J., 1995, Hydrogeology and simulation of ground-water flow in the Eutaw-McShan aquifer and in the Tuscaloosa aquifer system in northeastern Mississippi: U.S. Geological Survey Water-Resources Investigations Report 94-4223, vi, 83 p., https://doi.org/10.3133/wri944223.","productDescription":"vi, 83 p.","costCenters":[],"links":[{"id":58808,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1994/4223/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":121828,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1994/4223/report-thumb.jpg"},{"id":414116,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_48090.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Mississippi","otherGeospatial":"Eutaw-McShan aquifer, Tuscaloosa aquifer","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -89.6436,\n              34.9133\n            ],\n            [\n              -89.6436,\n              32.4958\n            ],\n            [\n              -87.7056,\n              32.4958\n            ],\n            [\n              -87.7056,\n              34.9133\n            ],\n            [\n              -89.6436,\n              34.9133\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ae4b07f02db6252dc","contributors":{"authors":[{"text":"Strom, E. W.","contributorId":90776,"corporation":false,"usgs":true,"family":"Strom","given":"E.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":202510,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mallory, M. J.","contributorId":10398,"corporation":false,"usgs":true,"family":"Mallory","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":202509,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}