San Antonio River Authority 2015/2016 Aerial Imagery Now Available

High resolution 6-inch/12-inch aerial imagery are now available from TNRIS for two areas of interest commissioned by the San Antonio River Authority:

• Wilson, Karnes and Goliad Counties at 6-inch resolution
• Refugio and Aransas Counties at 12-inch resolution

The San Antonio River Authority contributed funds to collect the new imagery as part of the 2015 Statewide Orthoimagery Project BUY-UP option to increase pixel resolution beyond 0.5-meter.

Surdex Corp. was selected under the legacy High Priority Imagery and Data Sets (HPIDS) state contract as the orthoimagery data provider. The TNRIS Strategic Mapping Program (StratMap) administered the project providing coordination and project management services. TNRIS also performed QA/QC for the project which included inspection of interim and final orthoimagery products.

The new orthoimagery are used by the San Antonio River Authority for engineering, general mapping, and other applications.

The new orthoimagery were acquired March 23-28, 2015 over Wilson, Karnes and Goliad Counties, and January 28-29, 2016 over Refugio and Aransas Counties during leaf-off conditions.

Data Access

The orthoimagery files (GeoTIFF, JPEG2000) are in the public domain. The JPEG2000s are available for direct download.

Browse, download, order, and inquire about data within the DataHub.

## Acquisition Areas View coverage areas in the interactive map below:

Products

• GeoTIFF and JPEG2000 DO4Q (~1 sq. mi.) image tiles
• JPEG2000 compressed county mosaic
• Tile index shp
• Seamline shp
• Metadata xmls per image tile

Product Specification

• 6-inch pixel resolution for Wilson, Karnes and Goliad Counties
• 12-inch pixel resolution for Refugio and Aransas Counties
• 4-band, natural color and color infrared
• StatePlane TX S Central 4204 NAD83 coordinate system
• Units in feet
• DO4Q (approx. 1 sq. mi.) image tiles, 1/64th USGS 7.5-minute quadrangle

Imagery Preview