{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Suzanne S. Paschke", "hasEmail": "mailto:spaschke@usgs.gov"}, "description": "A three-dimensional groundwater flow model (MODFLOW2000) of the Denver Basin bedrock aquifer \nsystem and overlying alluvial aquifer was developed to provide quantitative estimates of groundwater \nflow conditions and provide a useful tool for managers to analyze temporal changes to the hydrologic \nsystem in response to changing climatic conditions and future groundwater development. In 2004, the \nU.S. Geological Survey (USGS) initiated large-scale regional studies to provide updated assessments \nof groundwater availability in important principal aquifers across the United States, including the Denver \nBasin. The Denver Basin groundwater flow model includes several enhancements over previous modeling \nefforts because of the availability of additional data, improved modeling capabilities, and advanced computer \ntechnology. Additional data available include updated geologic mapping, additional geophysical logs, \nwater-level, streamflow, precipitation, and irrigation data collected since previous studies; and updated \nestimates of pumping from Denver Basin bedrock and alluvial aquifers. Modeling capabilities and computer\n technology also have advanced such that additional features, hydrologic processes, and numerical \ntechniques are included in the current model that were not possible in previous models.  The Denver Basin \ngroundwater flow model represents regional time-varying (transient) conditions prior to 1880 through 2003. \nThe model was calibrated by primarily adjusting hydraulic conductivity and recharge parameters until a \nbest fit was obtained between observed and simulated transient hydraulic heads and flows using PEST.  \nThe calibrated model was used to estimate the hydrologic system response to two pumping scenarios \nfor the period 2004 through 2053. This USGS data release contains all of the input and output files for \nthe simulation and calibration described in the associated model documentation report \n(https://pubs.er.usgs.gov/publication/pp1770).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F77W69PQ", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.20984718-caad-4d37-a19e-7f4d2f5e8881.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_20984718-caad-4d37-a19e-7f4d2f5e8881", "keyword": ["Arapahoe confining unit", "Colorado", "Dawson confining unit", "Denver Basin", "Denver aquifer", "Denver lower confining unit", "Denver upper confining unit", "Groundwater", "Groundwater Model", "InlandWaters", "Laramie confining unit", "Laramie-Fox Hill aquifer", "Lower Arapahoe aquifer", "Lower Dawson aquifer", "MODFLOW", "MODFLOW2000", "PEST", "UCODE", "USGS:20984718-caad-4d37-a19e-7f4d2f5e8881", "Upper Arapahoe aquifer", "Upper Dawson aquifer", "alluvial aquifer", "environment", "geoscientificInformation", "inlandWaters", "usgsgroundwatermodel"], "modified": "2017-05-15T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-105.250391, 38.662644, -103.650381, 40.473775", "theme": ["geospatial"], "title": "MODFLOW2000 model used to simulate the groundwater flow of the Denver Basin Aquifer System, Colorado"}