{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Nevada Water Science Center", "hasEmail": "mailto:GS-W-NVcrs_Webmaster@usgs.gov"}, "description": "With increasing population growth and land-use change, urban communities in the desert southwest are progressively \nlooking to remote basins to supplement existing water supplies.  Recent applications for groundwater appropriations \nfrom Dixie Valley, Nevada, a primarily undeveloped basin neighboring the Carson Desert to the east, have prompted \na reevaluation of the quantity of naturally discharging groundwater. The objective of this study was to develop a new, \nindependent estimate of groundwater discharge by evapotranspiration (ET) from Dixie Valley using a combination of \neddy-covariance evapotranspiration measurements and multispectral satellite imagery. Mean annual groundwater ET \n(ETg) was estimated during October 2009-2011 at four eddy covariance sites.  Two sites were located in phreatophytic \nshrubland dominated by greasewood and two were located on a playa.  Estimates were scaled to the basin level by \ncombining remotely sensed imagery with field reconnaissance and site-scale ETg estimates.  Vegetation index and \nbrightness temperature data were used to partition Dixie Valley into five discharging ET units, and scale actual and \npotential ETg to the basin level. ET units are spatially constrained by a groundwater discharge area which represents \nthe area where discharge from evaporation by open water or bare soil and transpiration from phreatophytic plants \nexceeds the volume of water contributed by precipitation. Each ET unit represents a generalized grouping of vegetation \nand soil conditions that were used as the basis of estimation of total ETg.  ET units were partitioned as: playa lake, \nplaya, sparse shrubland, moderate-to-dense shrubland, and grassland.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9HE15EZ", "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.423525ae-94fc-42a4-ad9b-77f220c82a2c.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_423525ae-94fc-42a4-ad9b-77f220c82a2c", "keyword": ["Churchill County", "Dixie Valley", "ET", "ET unit", "Evaporation", "Evapotranspiration", "Great Basin", "Groundwater", "Groundwater discharge", "Nevada", "Pershing County", "Phreatophyte", "Transpiration", "USGS:423525ae-94fc-42a4-ad9b-77f220c82a2c", "environment", "geoscientificInformation", "inlandWaters"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-118.161709, 39.627368, -117.583859, 40.155704", "theme": ["geospatial"], "title": "Evapotranspiration units for Dixie Valley, Churchill County, Nevada"}