Abstract
Characterization of Soil Surface Depth Using ArcGIS Spatial Analyst Track: Agriculture Author(s): Waylon Daniels Use of ArcGIS for Soil Survey activities by NRCS is increasing. This paper will discuss a new application of this software for soil map unit composition analysis. Point observations are collected on a mobile device using GPS with ArcPad, which represent soil surface depth in a selected soil map unit. These point data are used to create a surface for analysis and visualization with the ArcGIS Spatial Analyst and 3D Analyst extensions representing the boundary between the soil surface and subsoil layers. Different interpolation methods available in ArcGIS Spatial Analyst are tested against observations to determine which method more accurately captures the subsurface soil feature in this map unit. Waylon Daniels USDA-NRCS National Cartography and Geospatial Center bldg 23 federal center Ft Worth , TX 76115 US Phone: 817 579 1477 E-mail: wdaniels@ftw.nrcs.usda.gov |
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