Dataset Identification:
Resource Abstract:
- description: Data available online through GeoStor at http://www.geostor.arkansas.gov. Orthophotos combine the image characteristics
of a photograph with the geometric qualities of a map. The primary digital orthophotoquadrangle (DOQ) is a 1-meter ground
resolution, quarter-quadrangle (3.75 minutes of latitude by 3.75 minutes of longitude) image cast on the Universal Transverse
Mercator projection (UTM) on the North American Datum of 1983 (NAD83). The geographic extent of the DOQ is equivalent to a
quarter-quadrangle plus the overedge ranges from a minimum of 50 meters to a maximum of 300 meters beyond the extremes of
the primary and secondary corner points. The overedge is included to facilitate tonal matching for mosaicking and for the
placement of the NAD83 and secondary datum corner ticks. The normal orientation of data is by lines (rows) and samples (columns).
Each line contains a series of pixels ordered from west to east with the order of the lines from north to south. The radiometric
image brightness values are stored as 256 gray levels, ranging from 0 to 255. This dataset is a combination of all DOQ images
from the State of Arkansas. They have been stitched into a single mosaic through an automated process using ER Mapper software
from Earth Resource Mapping Pty Ltd. The DOQ images were contrast balanced (using histogram matching) and the resulting balanced
mosaic was forced into a value range of 0 to 255 using a simple linear transformation.; abstract: Data available online through
GeoStor at http://www.geostor.arkansas.gov. Orthophotos combine the image characteristics of a photograph with the geometric
qualities of a map. The primary digital orthophotoquadrangle (DOQ) is a 1-meter ground resolution, quarter-quadrangle (3.75
minutes of latitude by 3.75 minutes of longitude) image cast on the Universal Transverse Mercator projection (UTM) on the
North American Datum of 1983 (NAD83). The geographic extent of the DOQ is equivalent to a quarter-quadrangle plus the overedge
ranges from a minimum of 50 meters to a maximum of 300 meters beyond the extremes of the primary and secondary corner points.
The overedge is included to facilitate tonal matching for mosaicking and for the placement of the NAD83 and secondary datum
corner ticks. The normal orientation of data is by lines (rows) and samples (columns). Each line contains a series of pixels
ordered from west to east with the order of the lines from north to south. The radiometric image brightness values are stored
as 256 gray levels, ranging from 0 to 255. This dataset is a combination of all DOQ images from the State of Arkansas. They
have been stitched into a single mosaic through an automated process using ER Mapper software from Earth Resource Mapping
Pty Ltd. The DOQ images were contrast balanced (using histogram matching) and the resulting balanced mosaic was forced into
a value range of 0 to 255 using a simple linear transformation.
Citation
- Title Statewide Ortho 1994 (raster).
-
- creation Date
2015-04-10T02:08:41.929757
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T23:06:11Z
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 2018-08-06T23:06:11Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- 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:c36ca16e-4869-4457-90b1-7f60103f5049
Metadata record format is ISO19139 XML (MD_Metadata)