RISN subscribers can select a variety of tools to create a unique system that meets their own needs. The purpose of this page is to provide information for making decisions about which tools are appropriate.
RISN subscribers may choose to license the web services alone for their own development or pair them with one or more technical tools. The tools currently available for consideration are:
RISN subscribers may choose to license the web services alone
for their own development or pair them with one or more technical tools. The
tools currently available for consideration are:
General Description High-resolution digital aerial photography. Photographs are captured over multiple years and in both leaf-off and leaf-on conditions.
NCTCOG regional aerial photography is captured bi-annually through our cooperative aerial program. Program is a cost-sharing initiative which allows member entities and other interested parties to share the cost of the overall flight. More information about this cooperative purchase program is available on NCTCOG’s Digital Aerial Photography website.
2009 Aerial Photography: 6-inch resolution digital aerial photographs. Complete coverage of Collin, Dallas, Denton, Rockwall & Tarrant counties. Partial coverage of Ellis, Johnson, Kaufman and Parker counties. Available through RISN to aerial cooperative participants only.
2007 Aerial Photography: 6-inch resolution digital aerial photographs for all 16 counties in the NCTCOG region. Available to all RISN participants.
Altitude of Capture
4,800' above mean terrain
120 mm (4.72")
1"= 1015’ (Photo scale 1:12190 )
February-March 2009; January-March 2007
Leaf off, cloud free, 30 degree to 20 degree sun angle
Texas State Plane, North Central Zone
US Survey Feet
2009 National Agricultural Imagery Program (NAIP) Aerial Photography: 1-meter resolution digital aerial photographs for all 16 counties. NAIP photographs were flown by the U.S. Department of Agriculture (USDA) during the 2009 growing season. Imagery from this ongoing program is typically available to government agencies within one year of acquisition. Available to all RISN participants.
General Description Web-based mapping interface similar to Google and Bing Maps. Online interface comes with six basic services (aerial photography, boundaries, decennial Census data, contours, hydrology and transportation). Online interface can use icons, color schemes, and graphics unique to the subscriber. Subscribers can perform simple queries and have the ability to print, export, and email maps and reports.
Basic Query Functions
General Description Ability to select a feature on the online interface and see underlying values