Abstract
 On-Site verification of slope shape: Spatial Analyst Curvature Function Track: Agriculture Author(s): Waylon Daniels Use of the ArcGIS Spatial Analyst extension for soil survey activities by NRCS is increasing. This paper presents a process using a digital terrain model (DTM) and the Spatial Analyst extension curvature function to delineate the land surface into the nine slope shape categories. This model is applied to DTMs created from a variety of elevation data sources with various cell resolutions. Points along slope shape delineation boundaries are selected in ArcMap. These points are loaded to a mobile computer using ArcPad to enable precise and accurate navigation. Results are verified by on-site visual examination. Waylon Daniels USDA-NRCS National Cartography and Geospatial Center 501 W. Felix St Federal Center Bldg. 23 Ft Worth , TX 76115 US Phone: 817 509 3358 E-mail: dwain.daniels@ftw.usda.gov |
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