FTP Download
RAW and MrSID compressed DOQQs are now Available for download:
IMPORTANT INSTRUCTIONS
We are providing the DOQQs in an FTP-able format - as well as in UASL. After you have selected the type of DOQQ a directory listing the files under alphabetical directories will open in a new browser window. Select the alpha directory of choice, then navigate to a file. Images for the raw and compressed versions are listed by their Quad names - followed by NW, NE, etc.
IMPORTANT DO NOT LEFT CLICK. Generally most IE browsers are set to "Open and view" a TIFF. If your browser is so configured it will attempt to view the tiff - this will take a REALLY long time. If you browser is so configured, instead you MUST right click and select "save target as" for Internet Explorer users or "save as" for Netscape users. If you left click then most Internet Explorer browsers will try to immediately open the file - instead of downloading. It will take FOREVER for it to directly open the file.
DO NOT LEFT CLICK to initiate the download! Read above text!
DOQQ in color infrared for 2000 - 2002 in TIF format
DOQQ in color infrared for 2000 - 2002 in MrSID 1:5 format (ca 28.6 MB per DOQQ)*
DOQQ in color infrared for 2000 - 2001 in MrSID 1:20 format (ca 6.9 MB per DOQQ)*
DOQQ color infrared County Mosaics for 2000 - 2001 in MrSID format*
1:24,000 DRG in TIF format
1:100,000 DRG in TIF format
1:250,000 DRG in TIF format
Landsat 4,5 & 7 scenes in original delivery format
NW Arkansas Orthophotography (NWARPC, 2004) - GeoTIFF format
NW Arkansas Orthophotography (NWARPC, 2004) - County Mosaics, MrSID 50:1 compression*
Pulaski County DigitalGlobe Orthophotography (Pulaski County, 2004) - GeoTIFF format
*Note on all MrSID files. To allow your file to be properly geo-referenced be
sure to ALSO download the MrSID world file for the DOQQs you have selected
and place it in the same directory on you computer as the MrSID file. The
MrSID world file has the suffix sdw as in doqq_name.sdw.
Metadata
Files created in UTM Zone 15 NAD 83
Stored in GeoTiff format
1 meter resolution
Color contrast balanced and edge matched
Full metadata (http://www.gis.state.ar.us/Programs/Programs_current/ADOP/ADOP_metadata.htm)
Photo Acquistion Dates: (http://www.gis.state.ar.us/Programs/Programs_current/ADOP/Acquisition_dates.htm)
DOQQ in color infrared for 2000 - 2002 in MrSID format
Files created in UTM Zone 15 NAD 83
Stored in Mr. SID 5:1 format
1 meter resolution
Color contrast balanced and edge matched
Full metadata (http://www.gis.state.ar.us/Programs/Programs_current/ADOP/ADOP_metadata.htm)
Photo Acquistion Dates: (http://www.gis.state.ar.us/Programs/Programs_current/ADOP/Acquisition_dates.htm)
1990s DOQQ in black and white in TIF format
Files created in UTM Zone 15 NAD 83
Stored in GeoTiff format
1 meter resolution
Full metadata (http://nsdi.usgs.gov/wais/maps/doqmet.HTML)
Photo Acquisition Dates: Available in UASL as DOQQ BW metadata layer
2000 - 2001 County CIR Composites in MrSID 1:20 compression
Files created in UTM Zone 15 NAD 83
Stored in Mr. SID 20:1 format
1 meter resolution
Color contrast balanced and edge matched
DRG (Digital Raster Graphics) 1:24,000 in TIF format
Files created in UTM Zone 15 and 16, NAD 27
Stored in GeoTiff format
2.5 meter resolution
Individual Quadrangle Metadata: Available in UASL as DRG 1:24,000 metadata layer
