Item talk:Q60841

{"@context": "https://schema.org", "@type": "CreativeWork", "additionalType": "USGS Numbered Series", "name": "Use of multi-node wells in the Groundwater-Management Process of MODFLOW-2005 (GWM-2005)", "identifier": [{"@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "tm6A47", "url": "https://pubs.usgs.gov/publication/tm6A47"}, {"@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70048404}, {"@type": "PropertyValue", "propertyID": "DOI", "value": "10.3133/tm6A47", "url": "https://doi.org/10.3133/tm6A47"}], "inLanguage": "en", "isPartOf": [{"@type": "CreativeWorkSeries", "name": "Techniques and Methods"}], "datePublished": "2013", "dateModified": "2013-09-25", "abstract": "Many groundwater wells are open to multiple aquifers or to multiple intervals within a single aquifer. These types of wells can be represented in numerical simulations of groundwater flow by use of the Multi-Node Well (MNW) Packages developed for the U.S. Geological Survey\u2019s MODFLOW model. However, previous versions of the Groundwater-Management (GWM) Process for MODFLOW did not allow the use of multi-node wells in groundwater-management formulations. This report describes modifications to the MODFLOW\u20132005 version of the GWM Process (GWM\u20132005) to provide for such use with the MNW2 Package. Multi-node wells can be incorporated into a management formulation as flow-rate decision variables for which optimal withdrawal or injection rates will be determined as part of the GWM\u20132005 solution process. In addition, the heads within multi-node wells can be used as head-type state variables, and, in that capacity, be included in the objective function or constraint set of a management formulation. Simple head bounds also can be defined to constrain water levels at multi-node wells. The report provides instructions for including multi-node wells in the GWM\u20132005 data-input files and a sample problem that demonstrates use of multi-node wells in a typical groundwater-management problem.", "description": "vi, 26 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/office-of-science-quality-and-integrity"}]}, {"@type": "Person", "name": "Ahlfeld, David P.", "givenName": "David P.", "familyName": "Ahlfeld"}], "funder": [{"@type": "Organization", "name": "Office of Groundwater", "url": "https://www.usgs.gov/office-of-science-quality-and-integrity"}]}