FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2003, RELEASED NOVEMBER, 2002.
TITLE: DIGITAL ORTHOPHOTO QUARTER QUAD INDEX
Geodataset Name: DOQQ_INDEX Geodataset Type: Shape Geodataset Feature: Polygon
GENERAL DESCRIPTION
This dataset is an index for 1-meter DOQQ images. The images are one-fourth the size of a USGS 7.5 minute quadrangle (hence "Quarter-quads"). This index shapefile is a collection of rectangles that represent the extents of DOQQ images. Each rectangle (polygon) holds information about the associated image.
DATA SOURCE(S): UNIVERSITY OF FLORIDA GEOPLAN CENTER SCALE OF ORIGINAL SOURCE MAPS: Not applicable DATE OF AUTOMATATION OR SOURCE: JUNE 1999 GEODATASET EXTENT: State of Florida
FEATURE ATTRIBUTE TABLES
Datafile Name: DOQQ1M_INDEX.DBF
ITEM NAME WIDTH TYPE N.DEC IMAGE 75 CHARACTER - XMIN 15 DECIMAL 4 YMIN 15 DECIMAL 4 XMAX 15 DECIMAL 4 YMAX 15 DECIMAL 4 PIXEL_SIZE 2 CHARACTER 0 QUAD_NUM 5 CHARACTER 0 QUAD_NAME 75 CHARACTER - QUADRANT 2 CHARACTER - QQ_NAME 75 CHARACTER - ACQ_DATE 10 CHARACTER - STATE 8 CHARACTER -
FEATURE ATTRIBUTE TABLES CODES AND VALUES
Item Item description
IMAGE Each rectangle in this shapefile represents
the extent of an image. This field holds the
name for the image associated with the
rectangle (polygon).
XMIN The XMIN coordinate for the image's extent.
YMIN The YMIN coordinate for the image's extent.
XMAX The XMAX coordinate for the image's extent.
YMAX The YMAX coordinate for the image's extent.
PIXEL_SIZE The image's pixel size.
QUAD_NUM Each image is one-fourth of a USGS quadrangle.
This is the number of the quadrangle.
QUAD_NAME The name of the USGS quadrangle.
QUADRANT This is the quadrant of the USGS quadrangle;
either NE, NW, SE, or SW.
QQ_NAME The quarter-quad name; a combination of the
q_name and the quadrant.
ACQ_DATE The date the DOQQ image was acquired.
STATE State where the image is located. Can be
multiple counties.
USER NOTES:
Each county has a seperate shapefile. The name of the shapefile contains a number that identifies the county. Counties are numbered alphabetically. {ex. 01 = Alachua County}
These shapefiles were created by the FGDL team to work with a specific ArcView application created and distributed by the FGDL.
FGDL QUALITY ASSURANCE STATUS:
Final QA performed upon creation.
REFERENCES:
DATA LINEAGE SUMMARY:
MAP PROJECTION PARAMETERS:
Projection ALBERS Units METERS Datum HPGN Spheroid GRS1980 1st standard parallel 24 0 0.000 2nd standard parallel 31 30 0.000 central meridian -84 0 0.000 latitude of projection's origin 24 0 0.000 false easting (meters) 400000.00000 false northing (meters) 0.00000
DATA SOURCE CONTACT(S):
Name: FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture Building
PO Box 115706
Gainesville, FL 32611-5706
Web site: http://www.fgdl.org
FGDL CONTACT:
Name: FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture Building
PO Box 115706
Gainesville, FL 32611-5706
Web site: http://www.fgdl.org
Contact FGDL:
Technical Support: http://www.fgdl.org/fgdlfeed.html
FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html
For FGDL Software: http://www.fgdl.org/software.html