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You may wish to communicate with the Contact(s) specified before use.","specialPermissions":"None","restrictions":"All maps or other documents produced using data or data products supplied through this agreement should contain a data sourc\ne credit, prominently displayed, such as \"source data supplied by the Massachusetts Executive Office of Environmental Affairs, MassGIS.\" These digital data represent the efforts of the Massachusetts Executive Office of Environmental Affairs and its agencies to compile or record information from the cited source materials. EOEA maintains an ongoing program to record and correct errors in these data that are brought to its attention. EOEA makes no claims as to the absolute validity or reliability of these data or their fitness for any particular use. EOEA maintains records regarding all methods used to collect and process these digital data and will disclose this information upon request.","fileAccessRequest":false,"metadataBlocks":{"citation":{"displayName":"Citation Metadata","name":"citation","fields":[{"typeName":"title","multiple":false,"typeClass":"primitive","value":"MassGIS 2003 Massachusetts Drainage Sub-basins (Arcs) (March 2003)"},{"typeName":"author","multiple":true,"typeClass":"compound","value":[{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"MassGIS (Office : Mass.)"}},{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Geological Survey (U.S.). Water Resources Division."}},{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Massachusetts. Division of Water Supply."}},{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Massachusetts. Dept. of Environmental Protection."}}]},{"typeName":"datasetContact","multiple":true,"typeClass":"compound","value":[{"datasetContactEmail":{"typeName":"datasetContactEmail","multiple":false,"typeClass":"primitive","value":"N/A"}}]},{"typeName":"dsDescription","multiple":true,"typeClass":"compound","value":[{"dsDescriptionValue":{"typeName":"dsDescriptionValue","multiple":false,"typeClass":"primitive","value":"This datalayers contains arcs representing Massachusetts drainage sub-basin boundaries (see also the Drainage Sub-basins (Polygons) datalayer). MassGIS has produced a statewide digital datalayer of the approximately 2300 sub-basins as defined and used by the USGS Water Resources Division and the Mass Water Resources Commission and as modified by Executive Office of Environmental Affairs (EOEA) agencies. These sub-basins were aggregated together to make the 28 basins of the Major Basins Datalayer. Cape Cod and the Islands do not have much lateral 'surface' drainage because the soils are so porous. The sub-basin line shown for Cape Cod is the approximate groundwater divide between Cape Cod Bay, Vineyard Sound, and the Atlantic Ocean, taken from sub-surface groundwater contours. The sub-basin line shown for Cape Cod is the approximate groundwater divide between Cape Cod Bay, Vineyard Sound, and the Atlantic Ocean, taken from sub-surface groundwater contours. The state coastline and boundaries are included in the sub-basin coverages and are differentiated by arc attributes."}}]},{"typeName":"topicClassification","multiple":true,"typeClass":"compound","value":[{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"Watersheds"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"LCSH"}},{"topicClassValue":{"typeName":"topicClassValue","multiple":false,"typeClass":"primitive","value":"inlandWaters"},"topicClassVocab":{"typeName":"topicClassVocab","multiple":false,"typeClass":"primitive","value":"ISO 19115 Topic Category"}}]},{"typeName":"producer","multiple":true,"typeClass":"compound","value":[{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"Office of Geographic and Environmental Information (MassGIS)"}},{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"MassGIS (Office : Mass.)"}},{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"Geological Survey (U.S.). 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The shapefile was then imported to an ArcSDE 9.1 database using the ArcSDE command line importing tool, shp2sde."}]}},"files":[{"description":"","label":"SHAPE","restricted":false,"version":1,"datasetVersionId":20367,"dataFile":{"id":2334424,"persistentId":"","filename":"SHAPE","contentType":"application/octet-stream","friendlyType":"Unknown","filesize":0,"description":"","storageIdentifier":"http://hgl.harvard.edu:8080/HGL/jsp/HGL.jsp?action=VColl&VCollName=MGISSUBBA2","rootDataFileId":-1,"md5":"","checksum":{"type":"MD5","value":""},"tabularData":false,"creationDate":"2015-04-08","publicationDate":"2011-12-12","lastUpdateTime":"2011-12-13T18:49:35Z","fileAccessRequest":false}}]}}}