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Service Description:
Map Name: Map
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Description: This modified tile of the 3D Elevation Program (3DEP) seamless products is 1/3 arc-second resolution. 3DEP data serve as the elevation layer of The National Map, and provide basic elevation information for Earth science studies and mapping applications in the United States. Scientists and resource managers use 3DEP data for global change research, hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. 3DEP data compose an elevation dataset that consists of seamless layers and a high resolution layer. Each of these layers consists of the best available raster elevation data of the conterminous United States, Alaska, Hawaii, territorial islands, Mexico and Canada. 3DEP data are updated continually as new data become available. Seamless 3DEP data are derived from diverse source data that are processed to a common coordinate system and unit of vertical measure. These data are distributed in geographic coordinates in units of decimal degrees, and in conformance with the North American Datum of 1983 (NAD 83). All elevation values are in meters and, over the conterminous United States, are referenced to the North American Vertical Datum of 1988 (NAVD 88). The vertical reference will vary in other areas. Seamless 3DEP data are available nationally (except for Alaska) at resolutions of 1 arc-second (approximately 30 meters) and 1/3 arc-second (approximately 10 meters). In most of Alaska, only lower resolution source data are available. As a result, most seamless 3DEP data for Alaska are at 2 arc-second (approximately 60 meters) grid spacing. Part of Alaska is available at the 1 and 1/3 arc-second resolutions from interferometric synthetic aperture radar (ifsar) collections starting in 2010. Plans are in place for collection of statewide ifsar in Alaska. All 3DEP products are public domain.
Service Item Id: 35c880e77a2a43b79ffe7ca12073923d
Copyright Text: Acknowledgement of the originating agencies would be appreciated in products derived from these data. United States Geological Survey (USGS)
Spatial Reference:
102100
(3857)
LatestVCSWkid(0)
Single Fused Map Cache: true
Tile Info:
- Height: 256
- Width: 256
- DPI: 96
-
Levels of Detail: 24
-
Level ID: 1
[ Start Tile, End Tile ]
- Resolution: 78271.5169639999
- Scale: 2.95828763795777E8
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Level ID: 2
[ Start Tile, End Tile ]
- Resolution: 39135.7584820001
- Scale: 1.47914381897889E8
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Level ID: 3
[ Start Tile, End Tile ]
- Resolution: 19567.8792409999
- Scale: 7.3957190948944E7
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Level ID: 4
[ Start Tile, End Tile ]
- Resolution: 9783.93962049996
- Scale: 3.6978595474472E7
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Level ID: 5
[ Start Tile, End Tile ]
- Resolution: 4891.96981024998
- Scale: 1.8489297737236E7
- Format: Mixed
- Compression Quality: 75.0
- Origin: X: -2.0037508342787E7
Y: 2.0037508342787E7
- Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Storage Info:
- Storage Format: esriMapCacheStorageModeCompactV2
- Packet Size: 128
Initial Extent:
XMin: -1.1799546286081783E7
YMin: 4733680.13343326
XMax: -1.1615421701136949E7
YMax: 4859128.896632798
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Full Extent:
XMin: -1.1733274121468013E7
YMin: 4740109.973363468
XMax: -1.1693714497056728E7
YMax: 4853567.007962385
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Map
Author:
Comments:
Subject:
Category:
Keywords:
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: false
MaxRecordCount: 1000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 2311162.217155
Max Scale: 72223.819286
Min LOD: 8
Max LOD: 13
Supports Datum Transformation: true
Child Resources:
Info
Supported Operations:
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