{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Utah Water Science Center", "hasEmail": "mailto:rrowland@usgs.gov"}, "description": "A new version of previously published steady-state numerical groundwater flow models of the Great Basin \ncarbonate and alluvial aquifer system (GBCAAS), and was developed in conjunction with U.S. Geological \nSurvey (USGS) studies in Parowan, Pine, and Wah Wah Valleys, Utah. This version of the model is \nconsidered to be GBCAAS v. 3.0 and supersedes previous versions. This model added 15 transient \ncalibration stress periods and 14 projection stress periods, aquifer storage properties, historical \nwithdrawals in Parowan Valley, and observations of water-level changes in Parowan Valley to the \nprevious steady-state versions. Recharge in Parowan Valley and withdrawal from wells in Parowan \nValley and two nearby wells in Cedar City Valley vary for each calibration stress period representing \nconditions from March 1940 to November 2013. Stresses, including recharge, are the same in each \nstress period as in the steady-state stress period for all areas outside of Parowan Valley. This data \nrelease contains one calibration simulation and one projection simulation. The model is calibrated to \ntransient conditions only in Parowan Valley. Simulated storage properties outside of Parowan Valley \nare set the same as the Parowan Valley properties and should not be considered calibrated. The \nprojection simulation was used to estimate that reducing withdrawals in Parowan Valley from 35,000 \nto about 22,000 acre-feet per year should stabilize groundwater levels in the valley if recharge varies \nas it did from about 1950 to 2012 and that withdrawals of 15,000 acre-feet per year from Pine Valley \nand 6,500 acre-feet per year from Wah Wah Valley could ultimately (long-term steady-state) cause \nwater-level declines of about 1,900 feet near the withdrawal wells and more than 5 feet over about \n10,500 square miles. This USGS data release contains all of the input and output files for the simulations \ndescribed in the associated model documentation report (https://doi.org/10.3133/sir20175072). This data \nrelease also contains source code needed to run the models. Model files presented in this data release \nwere modified from an existing, calibrated, steady-state model of the Great Basin carbonate and alluvial \naquifer system. SIR 2014-5213 (https://pubs.usgs.gov/sir/2014/5213/) and SIR 2017-5011 \n(https://doi.org/10.3133/sir20175011) document the construction and calibration of the previous versions \nof this model. Modifications that were made to the input files and discussion of model results are \ndocumented in SIR2017-5072 (https://doi.org/10.3133/sir20175072), which is associated with this \ndata release. The model consists of a parent and a child model and must be run using MODFLOW-LGR. \nThe child model is far removed from the area considered for this project, but is being kept with the model \nso that one model version exists of the Great Basin carbonate and alluvial aquifer system that incorporates \nall refinements and improvements. The model files documented in this data release should be used instead \nof previous versions.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F76T0JW1", "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.27456b40-c7c8-4e18-bd76-4fa4032f6694.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_27456b40-c7c8-4e18-bd76-4fa4032f6694", "keyword": ["Beaver County", "Great Basin carbonate and alluvial aquifer system", "Groundwater", "Groundwater Model", "InlandWaters", "Iron County", "Lincoln County", "MODFLOW-LGR", "Millard County", "Nevada", "Parowan Valley", "Pine Valley", "UCODE", "USGS:27456b40-c7c8-4e18-bd76-4fa4032f6694", "Utah", "Wah Wah Valley", "White Pine County", "environment", "geoscientificInformation", "inlandWaters", "usgsgroundwatermodel"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-118.646416, 35.173675, -110.979584, 42.562234", "theme": ["geospatial"], "title": "MODFLOW-LGR data sets for the Great Basin carbonate and alluvial aquifer system model version 3.0: Revisions in southwestern Utah and east central Nevada"}