Item talk:Q63214

{

 "USGS Publications Warehouse": {
   "schema": {
     "@context": "https://schema.org",
     "@type": "CreativeWork",
     "additionalType": "USGS Numbered Series",
     "name": "Documentation for the State Variables Package for the Groundwater-Management Process of MODFLOW-2005 (GWM-2005)",
     "identifier": [
       {
         "@type": "PropertyValue",
         "propertyID": "USGS Publications Warehouse IndexID",
         "value": "tm6A36",
         "url": "https://pubs.usgs.gov/publication/tm6A36"
       },
       {
         "@type": "PropertyValue",
         "propertyID": "USGS Publications Warehouse Internal ID",
         "value": 99083
       },
       {
         "@type": "PropertyValue",
         "propertyID": "DOI",
         "value": "10.3133/tm6A36",
         "url": "https://doi.org/10.3133/tm6A36"
       }
     ],
     "inLanguage": "en",
     "isPartOf": [
       {
         "@type": "CreativeWorkSeries",
         "name": "Techniques and Methods"
       }
     ],
     "datePublished": "2011",
     "dateModified": "2012-02-02",
     "abstract": "Many groundwater-management problems are concerned with the control of one or more variables that reflect the state of a groundwater-flow system or a coupled groundwater/surface-water system. These system state variables include the distribution of heads within an aquifer, streamflow rates within a hydraulically connected stream, and flow rates into or out of aquifer storage. This report documents the new State Variables Package for the Groundwater-Management Process of MODFLOW-2005 (GWM-2005). The new package provides a means to explicitly represent heads, streamflows, and changes in aquifer storage as state variables in a GWM-2005 simulation. The availability of these state variables makes it possible to include system state in the objective function and enhances existing capabilities for constructing constraint sets for a groundwater-management formulation. The new package can be used to address groundwater-management problems such as the determination of withdrawal strategies that meet water-supply demands while simultaneously maximizing heads or streamflows, or minimizing changes in aquifer storage. Four sample problems are provided to demonstrate use of the new package for typical groundwater-management applications.\r\n",
     "description": "vii, 45 p.",
     "publisher": {
       "@type": "Organization",
       "name": "U.S. Geological Survey"
     },
     "author": [
       {
         "@type": "Person",
         "name": "Barlow, Paul M. pbarlow@usgs.gov",
         "givenName": "Paul M.",
         "familyName": "Barlow",
         "email": "pbarlow@usgs.gov",
         "identifier": {
           "@type": "PropertyValue",
           "propertyID": "ORCID",
           "value": "0000-0003-4247-6456",
           "url": "https://orcid.org/0000-0003-4247-6456"
         },
         "affiliation": [
           {
             "@type": "Organization",
             "name": "Office of Ground Water",
             "url": "https://www.usgs.gov/mission-areas/water-resources"
           }
         ]
       },
       {
         "@type": "Person",
         "name": "Baker, Kristine M.",
         "givenName": "Kristine M.",
         "familyName": "Baker"
       },
       {
         "@type": "Person",
         "name": "Ahlfeld, David P.",
         "givenName": "David P.",
         "familyName": "Ahlfeld"
       }
     ],
     "funder": [
       {
         "@type": "Organization",
         "name": "Office of Groundwater",
         "url": "https://www.usgs.gov/mission-areas/water-resources"
       }
     ]
   }
 }

}