1 meter Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection


Metadata
File Identifier:
Metadata Language: eng; USA
: utf8
Resource Type: Dataset
Responsible Party:
Organisation Name: U.S. Geological Survey
Role: Point Of Contact
Contact Info:
Voice: 1-888-ASK-USGS (1-888-275-8747)
Delivery Point: USGS National Geospatial Program Office
City: Reston
Administrative Area: VA
Postal Code: 20192
Country: USA
Metadata Date: 2017-09-21
Metadata Standard Name: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
Metadata Standard Version: ISO 19115-2:2009(E)
Data Identification
Abstract: This is a tiled collection of the 3D Elevation Program (3DEP) and is one meter resolution.The 3DEP data holdings serve as the elevation layer of The National Map, and provide foundational elevation information for earth science studies and mapping applications in the United States. Scientists and resource managers use 3DEP data for hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. The elevations in this DEM represent the topographic bare-earth surface. USGS standard one-meter DEMs are produced exclusively from high resolution light detection and ranging (lidar) source data of one-meter or higher resolution. One-meter DEM surfaces are seamless within collection projects, but, not necessarily seamless across projects. The spatial reference used for tiles of the one-meter DEM within the conterminous United States (CONUS) is Universal Transverse Mercator (UTM) in units of meters, and in conformance with the North American Datum of 1983 (NAD83). All bare earth elevation values are in meters and are referenced to the North American Vertical Datum of 1988 (NAVD88). Each tile is distributed in the UTM Zone in which it lies. If a tile crosses two UTM zones, it is delivered in both zones. The one-meter DEM is the highest resolution standard DEM offered in the 3DEP product suite. Other 3DEP products are nationally seamless DEMs in resolutions of 1/3, 1, and 2 arc seconds. These seamless DEMs were referred to as the National Elevation Dataset (NED) from about 2000 through 2015 at which time they became the seamless DEM layers under the 3DEP program and the NED name and system were retired. Other 3DEP products include five-meter DEMs in Alaska as well as various source datasets including the lidar point cloud and interferometric synthetic aperture radar (Ifsar) digital surface models and intensity images. All 3DEP products are public domain.
Purpose: This 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. The data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping and visualization, and many other applications.
Language: eng; USA
Thumbnail:
Browse Graphic: https://thor-f5.er.usgs.gov/ngtoc/metadata/waf/collections/browse/dem_1m_col_thumbnail.jpg
Browse Graphic Type: JPEG
Browse Graphic Caption: Thumbnail JPG image
Citation:
Title: 1 meter Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection
Date:
Date: 2017-01-01
Date Type: Publication Date
Organisation Name: U.S. Geological Survey
Role: Publisher
Contact Info:
City: Reston
Administrative Area: VA
Organisation Name: U.S. Geological Survey
Role: Originator
Organisation Name:
Role:
Contact Info:
Online Resource: https://nationalmap.gov/3DEP/
Organisation Name:
Role:
Contact Info:
Online Resource: https://viewer.nationalmap.gov/
Representation Type: Grid
Topic Category: Elevation and Derived Products
Keyword Collection:
Keyword: National Geospatial Data Asset
Keyword: NGDA
Keyword: Elevation Theme
Associated Thesaurus: NGDA Portfolio Themes
Keyword: National Elevation Dataset
Keyword: 3DEP
Keyword: NED
Keyword: Elevation
Keyword: Light Detection and Ranging
Keyword: LIDAR
Keyword: High Resolution
Keyword: Topographic Surface
Keyword: Topography
Keyword: Bare Earth
Keyword: Hydro-Flattened
Keyword: Terrain Elevation
Keyword: Cartography
Keyword: DEM
Keyword: Digital Elevation Model
Keyword: Digital Mapping
Keyword: Digital Terrain Model
Keyword: Geodata
Keyword: GIS
Keyword: Mapping
Keyword: Raster
Keyword: USGS
Keyword: U.S. Geological Survey
Keyword: 10,000 meter DEM
Keyword: 1 meter DEM
Associated Thesaurus: National Elevation Dataset (NED)
Keyword: Downloadable Data
Associated Thesaurus: The National Map Type Thesaurus
Keyword: Elevation
Associated Thesaurus: The National Map Theme Thesaurus
Keyword: Digital Elevation Model (DEM) 1 meter
Associated Thesaurus: The National Map Collection Thesaurus
Keyword: 10000 x 10000 meter
Associated Thesaurus: The National Map Product Extent Thesaurus
Keyword: IMG
Associated Thesaurus: The National Map Product Format Thesaurus
Keyword: US
Keyword: United States
Associated Thesaurus: Geographic Names Information System
Spatial Extent:
West Bounding Longitude: -162.00
East Bounding Longitude: -64
North Bounding Latitude: 50.00
South Bounding Latitude: 17.00
Constraints: 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.
Legal Constraints:
Use Constraints: Other Restrictions
Other 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 https://www.usgs.gov/privacy.html for the USGS disclaimer.
Legal Constraints:
Access Constraints: Other Restrictions
Other Constraints: 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.
Distribution
Distribution Format:
Format Name: WAF
Format Version:
Distribution Format:
Format Name: IMG
Format Version:
Distribution Format:
Format Name: 3DEP Elevation Index Map Server (ArcGIS)
Format Version: 10.41
Specification: http://www.geoplatform.gov/spec/esri-map-rest
Distribution Format:
Format Name: 3DEP Elevation Index Map Server (OGC WMS)
Format Version: 1.3.0
Specification: http://opengis.net/spec/wms
Transfer Options:
URL: https://thor-f5.er.usgs.gov/ngtoc/metadata/waf/elevation/1_meter/
Name:
Description:
Function:
Transfer Options:
URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/1m/IMG/
Name:
Description:
Function:
Transfer Options:
URL: https://services.nationalmap.gov/arcgis/rest/services/3DEPElevationIndex/MapServer
Name:
Description:
Function:
Transfer Options:
URL: https://services.nationalmap.gov/arcgis/services/3DEPElevationIndex/MapServer/WMSServer?request=GetCapabilities&service=WMS
Name:
Description:
Function:
Distributor:
Distributor Contact:
Organisation Name: U.S. Geological Survey
Role: Distributor
Contact Info:
Voice: 1-888-ASK-USGS (1-888-275-8747)
Delivery Point: USGS National Geospatial Program Office
City: Reston
Administrative Area: VA
Postal Code: 20192
Country: USA