USGS NED ned19_n39x00_w076x75_md_washingtondc_2008 1/9 arc-second 2011 15 x 15 minute IMG

Dataset Identification:

Resource Abstract:
This tile of the National Elevation Dataset (NED) is 1/9 arc-second resolution. The National Elevation Dataset (NED) serves 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 NED data for global change research, hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. The NED is an elevation dataset that consists of seamless layers and a high resolution layer. Each of these layers are composed of the best available raster elevation data of the conterminous United States, Alaska, Hawaii, territorial islands, Mexico and Canada. The NED is updated continually as new data become available. All NED data are in the public domain. The NED 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 continental United States, are referenced to the North American Vertical Datum of 1988 (NAVD 88). The vertical reference will vary in other areas. NED data are available nationally (except for Alaska) at resolutions of 1 arc-second (approx. 30 meters) and 1/3 arc-second (approx. 10 meters), and in limited areas at 1/9 arc-second (approx. 3 meters). In most of Alaska, only lower resolution source data are available. As a result, most NED data for Alaska are at 2-arc-second (approx. 60 meters) grid spacing. Part of Alaska is available at the 1- and 1/3-arc-second resolution from IFSAR collections starting in 2010. Plans are in place for collection of statewide IFSAR in Alaska through 2016.
Citation
Title USGS NED ned19_n39x00_w076x75_md_washingtondc_2008 1/9 arc-second 2011 15 x 15 minute IMG
publication  Date   2011-01-01
presentationForm  mapDigital
cited responsible party - publisher
organisation Name  U.S. Geological Survey
Contact information
Address
, Reston, VA
cited responsible party - originator
organisation Name  U.S. Geological Survey
cited responsible party - originator
organisation Name  U.S. Geological Survey
cited responsible party -
organisation Name  
Contact information
Linkage for online resource
URL: http://ned.usgs.gov/
cited responsible party -
organisation Name  
Contact information
Linkage for online resource
URL: http://nationalmap.gov/viewer.html
Topic Category:  elevation
Keywords:
Theme keywords (theme):
Elevation
thesaurus name >
Title NGDA Portfolio Themes
Theme keywords (theme):
National Elevation Dataset
NED
Elevation
Grid
LIght Detection And Ranging
LIDAR
Interferometric Synthetic Aperture Radar
IFSAR
High Resolution
Topographic Surface
Topography
Bare Earth
Hydro-Flattened
Terrain Elevation
15-minute DEM
1/9 arc-second DEM
Cartography
DEM
Digital Elevation Model
Digital Mapping
Digital Terrain Model
Geodata
GIS
Mapping
Raster
USGS
U.S. Geological Survey
thesaurus name >
Title National Elevation Dataset (NED)
Theme keywords (theme):
Downloadable Data
thesaurus name >
Title The National Map Type Thesaurus
Theme keywords (theme):
Elevation
thesaurus name >
Title The National Map Theme Thesaurus
Theme keywords (theme):
National Elevation Dataset (NED) 1/9 arc-second
National Elevation Dataset (NED)
thesaurus name >
Title The National Map Collection Thesaurus
Theme keywords (theme):
15 x 15 minute
thesaurus name >
Title The National Map Product Extent Thesaurus
Theme keywords (theme):
IMG
thesaurus name >
Title The National Map Product Format Thesaurus
Location keywords:
US
United States
thesaurus name >
Title Geographic Names Information System
Theme keywords (theme):
Survey
thesaurus name >
Title Activity > Observation
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
Topographic
thesaurus name >
Title Resource Type > Document
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
USGS
thesaurus name >
Title Organization > GOVERNMENT AGENCIES-U.S. FEDERAL AGENCIES
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
Island
thesaurus name >
Title Feature > Hydrologic Feature
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
Digital Elevation Model
thesaurus name >
Title Realm > Earth Surface
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
Measure
Topographic
Light
thesaurus name >
Title Property > Measure
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
Earth Science
Hydrology
Geography
Cartography
thesaurus name >
Title Science Domain > Earth Science
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
LIDAR
thesaurus name >
Title Equipment > Instrument
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
Continental
thesaurus name >
Title Realm > Continental
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
National Elevation Dataset
thesaurus name >
Title Resource Type > Data Set
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
U.S. Geological Survey
thesaurus name >
Title Virtual International Authority File (VIAF) Corporate Names
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
Theme keywords (theme):
Elevation
Topographic
thesaurus name >
Title Feature > Physiographic Feature
publication  Date   2016-11-13
other Citation Details  Cinergi keyword enhanced at Sun Nov 13 08:11:02 UTC 2016
purpose:
The NED 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 applications.
Browse image (thumbnail):
thumbnail file name:  ...
file type: JPEG
thumbnail file description:  Thumbnail JPG image
Resource language:  eng; USA
Resource progress code:  completed
Resource Maintenance Information
maintenance or update frequency:  asNeeded
Constraints on resource usage:
Constraints
Use limitation statement:
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.
Constraints on resource usage:
Legal Constraints
use constraint:  otherRestrictions
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 http://www.usgs.gov/privacy.html for the USGS disclaimer.
Constraints on resource usage:
Legal Constraints
Access Constraints  otherRestrictions
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.
Spatial representation type code:  grid
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -76.7501851851852
eastBoundLongitude  -76.49981481481483
northBoundLatitude  39.00018518518517
southBoundLatitude  38.7498148148148
Temporal Extent
2008-03-12 2008-12-23
Additional information on resource:
This tile of the National Elevation Dataset (NED) is 1/9 arc-second resolution, Image file format, and covers a one degree block. The geographic area of coverage is described below in the Bounding Coordinates. Additional information for the NED may be found on http://ned.usgs.gov/. Data may be downloaded through The National Map Viewer: http://nationalmap.gov/viewer.html. Direct links for direct access by automated services are provided in the Distribution section of this metadata.; {"gdaId" : 6030468}
Credits:
Acknowledgement of the originating agencies would be appreciated in products derived from these data.
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Grid spatial representation

number of grid dimensions: 3
Grid axis property:
Grid Dimension
Dimension Name:  row
Dimension Size 34596
Grid Dimension
Dimension Name:  column
Dimension Size 34935
Grid Dimension
Dimension Name:  vertical
Dimension Size 1
cell geometry type:  point
transformation parameter availability: 
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Grid spatial representation

number of grid dimensions: 2
Grid axis property:
Grid Dimension
Dimension Name:  column
Dimension Size 
Grid Dimension
Dimension Name:  row
Dimension Size 
cell geometry type:  point
transformation parameter availability:  false
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Content information: feature catalog description

Included With Dataset  false
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Scope of quality information
scope level  dataset
Resource lineage description
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description  N/A
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description  N/A
Completeness Commission
evaluation Method Description  N/A
Completeness Omission
evaluation Method Description  N/A
ConceptualConsistency
measure Description  N/A

Resource distribution information

Distributor
distributor contact - distributor
organisation Name  U.S. Geological Survey
Contact information
Telephone
Voice 1-888-ASK-USGS (1-888-275-8747)
Address
USGS National Geospatial Program Office12201 Sunrise Valley Drive, Reston, VA, 20192 Country USA
hoursOfService Monday through Friday 8:00 AM to 4:00 PM Eastern Time Zone USA
contact Instructions
Please visit http://www.usgs.gov/ask/ to contact us.
Standard ordering process
fees NONE
Format
Format name IMG
Format version 
Digital Transfer Options
transfer Size 125.258885
Linkage for online resource
URL: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/19/IMG/ned19_n39x00_w076x75_md_washingtondc_2008.zip

Metadata data stamp:  2014-03-06
Resource Maintenance Information
maintenance or update frequency:  annually
notes: This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
Metadata contact - pointOfContact
organisation Name  U.S. Geological Survey
Contact information
Telephone
Voice 1-888-ASK-USGS (1-888-275-8747)
Address
USGS National Geospatial Program Office12201 Sunrise Valley Drive, Reston, VA, 20192 Country USA
hoursOfService Monday through Friday 8:00 AM to 4:00 PM Eastern Time Zone USA
contact Instructions
Please visit http://www.usgs.gov/ask/ to contact us.
Metadata scope code  dataset
Metadata language  eng; USA
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
standard version:  ISO 19115-2:2009(E)
Metadata record identifier:  1aad66e3-0e4a-45a0-917e-f7abfca6206f

Metadata record format is ISO19139-2 XML (MI_Metadata)