{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Adam G Johnson", "hasEmail": "mailto:ajohnson@usgs.gov"}, "description": "The zipped folder (Monthly_water_budget_Roi-Namur_2000-12.zip) associated with this metadata file contains \n156 polygon shapefiles. Collectively, the 156 shapefiles contain spatially distributed estimates of \ngroundwater recharge and other water-budget components, in inches, for Roi-Namur, Kwajalein Atoll, \nRepublic of the Marshall Islands, for each month and year during 2000\u201312. The name of each shapefile \nindicates the year and month of the water-budget components contained in the shapefile. \n\t\t\nThe month-year estimates of recharge and other water-budget components summarized in each shapefile \nwere summed from daily water-budget components that were computed using a water-budget model. The \nequations of the water-budget model that we used for Roi-Namur were the same as those (equations 1\u201316) \ndescribed in Johnson and others (2014). Johnson and others (2014), available at \n(https://pubs.usgs.gov/sir/2014/5168/) and hereinafter U.S. Geological Survey Scientific Investigations Report \n(USGS SIR) 2014-5168, describes a water-budget model used for the island of Maui, Hawaii. In USGS \nSIR 2014-5168, the \u201cConceptual Model\u201d section has a general description of the water-budget model, and the \n\u201cModel Calculations\u201d section has a detailed description of the equations and variables used in the model. \nSeveral water-budget components considered in the Hawaii water-budget model described in USGS \nSIR 2014-5168 were excluded from the water-budget model for Roi-Namur. Fog interception and irrigation \nwere excluded because they were assumed to be negligible. Water leakage from water-storage tanks was \nexcluded because leakage rates were not known (Chugach Management Services, Inc., written communication, \n2014). Water leakage from the rain water-catchment basins and water-transmission systems also was excluded. \nAccording to a soil database published by the U.S. Department of Agriculture, Natural Resources Conservation \nService (2014), soils on islands of nearby atolls (Maloelap, Aur, Majuro, Arno, and Mili) have \u201cvery low to negligible \nrunoff.\u201d Although this soil database does not have soil information for islands of Kwajalein Atoll, we assumed soil \nproperties for Roi-Namur were similar to those on islands of nearby atolls. Therefore, runoff to the ocean from all \nsurfaces was excluded because it was assumed to be negligible owing to the island\u2019s porous soil. Runoff from \nimpervious surfaces, however, was quantified in the model as \u201cexcess water\u201d that was assumed to either be \ncaptured by catchment systems for storage or flow to pervious surfaces.  \n\t\t\t\nThis abstract and the attribute definitions in this metadata file have descriptions of the input data we used in the \nmodel for Roi-Namur. Prior to computing recharge, we subdivided the island of Roi-Namur into 68 polygons, which \nwe refer to as subareas, and which are represented in each shapefile. An explanation of the methods used to \ncreate the subareas is included in this metadata file in the description for the Subarea_ID attribute. The \nwater-budget model computed daily groundwater recharge and other water-budget components separately \nfor each of the 68 subareas. The attributes associated with each polygon include monthly estimates of rainfall, \nforest-canopy evaporation, rain water captured from the airport runway, surplus rainfall-catchment water \ndischarged to the ground near the airport runway, potential evapotranspiration, actual evapotranspiration, total \nevapotranspiration, natural recharge from rainfall, artificial recharge from surplus rainfall-catchment water, and \ntotal recharge.  For each attribute, this metadata file includes a description of how it was estimated in the \nwater-budget model.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7GM85H0", "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.d86b6ac9-c28e-43ea-a854-9d573b1b781d.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_d86b6ac9-c28e-43ea-a854-9d573b1b781d", "keyword": ["Kwajalein", "Marshall Islands", "Roi-Namur", "USGS:d86b6ac9-c28e-43ea-a854-9d573b1b781d", "environment", "evaporation", "geoscientificInformation", "inlandWaters", "precipitation (atmospheric)", "recharge", "transpiration", "water budget"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "167.464568677, 9.389293494, 167.486070937, 9.402748725", "theme": ["geospatial"], "title": "Monthly Water-Budget Components for Roi-Namur, Kwajalein Atoll, Republic of the Marshall Islands, 2000-12"}