{ "culture": "en-US", "name": "ChesapeakeBayBathymetry", "guid": "91DA9AA1-DF9F-4E77-A2A2-DD66C5374722", "catalogPath": "", "snippet": "Bathymetry of the Chesapeake Bay.", "description": "The Chesapeake Bay Digital Elevation Model (DEM) shows the Bathymetry of the bay and it's tributaries. The dataset was derived from 297 hydrographic surveys from 1859 to 1993. Resolution is 30m, and depth is show in meters at mean low water.", "summary": "Bathymetry of the Chesapeake Bay.", "title": "Chesapeake Bay Bathymetry", "tags": [ "CBF", "DEM", "NOAA", "Bathymetry", "Chesapeake Bay", "Contours" ], "type": "Map Service", "typeKeywords": [ "Data", "Service", "Map Service", "ArcGIS Server" ], "thumbnail": "thumbnail/thumbnail.png", "url": "", "extent": [ [ -77.4679730665422, 36.7696807053757 ], [ -75.5999165684171, 39.6187061339985 ] ], "spatialReference": "WGS_1984_UTM_Zone_18N", "accessInformation": "NOAA (1994), Chesapeake Bay Foundation (2015)", "licenseInfo": "Chesapeake Bay Foundation does not guarantee accuracy and is not responsible for misuse of the data. Data should not be used for navigation. The datum for this bathymetric DEM is not the same as that used by the US Geological survey (USGS) for land based DEMs which results in a discontinuity if the two datasets are merged together. Moreover, the shoreline for the USGS DEMs is indeterminate and not the same as that used for the Bathymetric DEMs." }