USGS NED 2 arc-second n64w164 1 x 1 degree ArcGrid 2017

Metadata Updated: December 28, 2017

This tile of the 3D Elevation Program (3DEP) seamless products is 2 arc-second resolution. 3DEP data serves as the elevation layer of The National Map, and provides 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 are 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 resolution 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.

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Collection

This dataset is part of the following collection:

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Dates

Metadata Date August 22, 2017
Metadata Created Date December 28, 2017
Metadata Updated Date December 28, 2017
Reference Date(s) August 16, 2017 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from Alaska 2 Arc-second Digital Elevation Models (DEMs) - USGS National Map

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Additional Metadata

Resource Type Dataset
Metadata Date August 22, 2017
Metadata Created Date December 28, 2017
Metadata Updated Date December 28, 2017
Reference Date(s) August 16, 2017 (publication)
Responsible Party U.S. Geological Survey (Point of Contact)
Contact Email
Access Constraints Use Constraints: There is no guarantee or warranty concerning the accuracy of the data. Users should be aware that temporal changes may have occurred since these data were collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data, nor to imply that changes made were approved or endorsed by the USGS. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer., Access Constraints: None. Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the USGS Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and USGS interests.
Bbox East Long -162.996666667033
Bbox North Lat 64.0033333334675
Bbox South Lat 62.9966666665344
Bbox West Long -164.003333333966
Collection Package Id ff73f68e-0ee5-48d5-8ec4-d5be0d7f076c
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Thumbnail JPG image
Graphic Preview File https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/2/ArcGrid/USGS_NED_2_n64w164_ArcGrid_thumb.jpg
Graphic Preview Type JPEG
Guid
Harvest Object Id ca60be46-0bce-4d2b-a4ab-90154240bea1
Harvest Source Id 3273c205-3261-4c11-8e35-71594487a837
Harvest Source Title Alaska 2 Arc-second Digital Elevation Models (DEMs) - USGS National Map
Licence Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied, is made by either regarding the utility of the data on any system, nor shall the act of distribution constitute any such warranty. The USGS will warranty the delivery of this product in computer-readable format and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustments of credit must be made within 90 days from the date of this shipment from the ordering site.
Metadata Language
Metadata Type geospatial
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 9999-01-01
Temporal Extent End 2015-01-01

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