{
 "culture": "en-US",
 "name": "Maine_Elevation_DEM_10_Meter",
 "guid": "",
 "catalogPath": "",
 "snippet": "MEDEM10s can be used as source data for digital orthophotos, and as layers in geographic information systems for earth science analysis. DEMs can also serve as tools for volumetric analysis, for site location of towers, or for drainage basin delineation. These data were collected as part of the National Mapping Program. Not intended for use at scales greater than 1:24,000. Users must assume responsibility in determining the usability of this data for their purpose. Data at this scale may be useful for detailed studies and local planning.",
 "description": "<div style='text-align:Left;'><div><div><p><span>MEDEM10s are digital terrain elevation models of Maine, in grid format, based on USGS 7.5 minute DEMs (10 by 10 m square grid or data spacing). Digital Elevation Model (DEM) is the terminology adopted by USGS to describe terrain elevation data sets in a digital raster form. The standard DEM consists of an array of elevations from ground positions at regularly spaced intervals, cast on a designated coordinate projection system, produced in 7.5 by 7.5 minute blocks from cartographic map contour overlays or scanned National Aerial Photography (NAPP) photographs. USGS DEM data are stored as profiles with a 10 or 30 meter square grid spacing in which the spacing of elevations along and between each profile is in regular whole number intervals. The normal orientation of data is by columns and rows. Each column contains a series of elevations ordered from south to north with the order of the columns from west to east. USGS has used four methods to collect DEM data. Of these, only one, interpolation from vectors or digital line graph (DLG) hypsographic and hydrographic data, is currently used for 7.5 minute DEMs and other series. MEDEM10s, produced using 1:24000 cartographic map contour overlays, represent the 10 meter profile of USGS 7.5 minute DEM series. Elevation values are in meters.<\/span><\/p><\/div><\/div><\/div>",
 "summary": "MEDEM10s can be used as source data for digital orthophotos, and as layers in geographic information systems for earth science analysis. DEMs can also serve as tools for volumetric analysis, for site location of towers, or for drainage basin delineation. These data were collected as part of the National Mapping Program. Not intended for use at scales greater than 1:24,000. Users must assume responsibility in determining the usability of this data for their purpose. Data at this scale may be useful for detailed studies and local planning.",
 "title": "Maine_Elevation_DEM_10_Meter",
 "tags": [
  "elevation",
  "LiDAR",
  "derivative",
  "Digital Elevation Model",
  "DEM",
  "Maine",
  "MaineGeoLibrary",
  "MEDEM10",
  "10 meter"
 ],
 "type": "Image Service",
 "typeKeywords": [
  "ArcGIS Server",
  "Data",
  "Image Service",
  "Service"
 ],
 "thumbnail": "thumbnail/thumbnail.png",
 "url": "https://gis.maine.gov/image",
 "minScale": 4612741.730562411,
 "maxScale": 144148.17908007535,
 "spatialReference": "NAD_1983_UTM_Zone_19N",
 "accessInformation": "Maine GeoLibrary, Maine Office of Information Technology GIS",
 "licenseInfo": "<div style='text-align:Left;'><div><div><p><span>Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. The Maine Office of Geographic Information Systems (MeGIS) provides notice of updates and corrections directly to the Maine GIS Technical Group and Maine GIS Users, through the MEGISTECH and MEGISUSER list servers. To subscribe please contact MeGIS through the Maine Office of Information Technology (OIT) Customer Support Center (CSC) at (207) 624-7700. To request data correction in, or provide updates to Maine GIS data, please use the contact information contained in the metadata. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with \"Data Standards for Maine Geographic Information Systems\", 2002, and coordinated by MEGIS in consultation with the Maine GIS Executive Council.<\/span><\/p><\/div><\/div><\/div>",
 "portalUrl": ""
}