Abstract

Evaluation of Remotely Sensed High Resolution Elevation Data in Texas
Track: Agriculture
Author(s): Waylon Daniels, Steven Nechero, Dennis Williamson

There is high potential for increasing the quality, efficiency, and effectiveness in presentation and planning of many varied NRCS business activities including conservation practices utilizing spatial analysis processes with remotely sensed high resolution elevation data. Prior to implementation of elevation derivatives into production activities using GIS processes and models, how well the surface generated captures reality needs to be evaluated. Areas in 8 West Texas counties with a variety of landform and vegetation conditions were selected for the collection of elevation data using survey grade GPS systems. Point data were collected, processed, and used for the calculation of fundamental accuracy values for the different landform and vegetation conditions. Results of the evaluation identify some of the conditions that have higher uncertainty regarding the use of different elevation derivatives.

Waylon Daniels
USDA-NRCS
CNTSC Bldg 23
501 W. Felix
Fort Worth , Texas 76115
United States
Phone: 817 509 3358
E-mail: dwain.daniels@ftw.usda.gov

Steven Nechero
National Cartography and Geospatial Center
USDA-NRCS
501 W. Felix
Fort Worth , Texas 76115
United States
Phone: 817 509 3366
E-mail: steven.nechero@ftw.usda.gov

Dennis Williamson
NRCS Texas
NRCS
101 South Main Street
Temple , Texas 76501
United States
Phone: 254 742 9800
E-mail: dennis.williamson@tx.usda.gov