Dataset Identification:
Resource Abstract:
- description: USGS Imagery Only is a tile cache base map of orthoimagery in The National Map visible to the 1:18,000 scale.
Orthoimagery data are typically high resolution images that combine the visual attributes of an aerial photograph with the
spatial accuracy and reliability of a planimetric map. USGS digital orthoimage resolution may vary from 6 inches to 1 meter.
In the former resolution, every pixel in an orthoimage covers a six inch square of the earth's surface, while in the
latter resolution, one meter square is represented by each pixel. Blue Marble: Next Generation source is displayed at small
to medium scales. However, the majority of the imagery service source is from the National Agriculture Imagery Program (NAIP)
for the conterminous United States. The data is 1-meter pixel resolution with "leaf-on". Collection of NAIP imagery
is administered by the U.S. Department of Agriculture's Farm Service Agency (FSA). In areas where NAIP data is not available,
other imagery may be acquired through partnerships by the USGS. The National Map program is working on acquisition of high
resolution orthoimagery (HRO) for Alaska and Hawaii. Most of the new Alaska imagery data will not be available in this service
due to license restrictions. The National Map viewer allows free downloads of public domain, 1-meter resolution orthoimagery
in JPEG 2000 (jp2) format for the conterminous United States, with many urban areas and other locations at 1-foot (or better)
resolution also in JPEG 2000 (jp2) format. For scales below 1:18,000, use the dynamic USGS Imagery Only Large service, https://services.nationalmap.gov/arcgis/rest/services/USGSImageOnlyLarge/MapServer.;
abstract: USGS Imagery Only is a tile cache base map of orthoimagery in The National Map visible to the 1:18,000 scale. Orthoimagery
data are typically high resolution images that combine the visual attributes of an aerial photograph with the spatial accuracy
and reliability of a planimetric map. USGS digital orthoimage resolution may vary from 6 inches to 1 meter. In the former
resolution, every pixel in an orthoimage covers a six inch square of the earth's surface, while in the latter resolution,
one meter square is represented by each pixel. Blue Marble: Next Generation source is displayed at small to medium scales.
However, the majority of the imagery service source is from the National Agriculture Imagery Program (NAIP) for the conterminous
United States. The data is 1-meter pixel resolution with "leaf-on". Collection of NAIP imagery is administered by
the U.S. Department of Agriculture's Farm Service Agency (FSA). In areas where NAIP data is not available, other imagery
may be acquired through partnerships by the USGS. The National Map program is working on acquisition of high resolution orthoimagery
(HRO) for Alaska and Hawaii. Most of the new Alaska imagery data will not be available in this service due to license restrictions.
The National Map viewer allows free downloads of public domain, 1-meter resolution orthoimagery in JPEG 2000 (jp2) format
for the conterminous United States, with many urban areas and other locations at 1-foot (or better) resolution also in JPEG
2000 (jp2) format. For scales below 1:18,000, use the dynamic USGS Imagery Only Large service, https://services.nationalmap.gov/arcgis/rest/services/USGSImageOnlyLarge/MapServer.
Citation
- Title USGS Imagery Only Base Map Service from The National Map.
-
- creation Date
2018-02-08T08:34:25.587112
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T20:05:54Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T20:05:54Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
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- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:8ae04afd-dd4c-465a-ba0d-b78786465fdf
Metadata record format is ISO19139 XML (MD_Metadata)