Assessment of interpolation methods for refining SRTM and DEM

Simple item page
dc.contributor.authorHer, Y.en
dc.contributor.authorHeatwole, Conrad D.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialNew Mexicoen
dc.date.accessioned2016-04-19T19:45:23Zen
dc.date.available2016-04-19T19:45:23Zen
dc.date.issued2008en
dc.descriptionMetadata only recorden
dc.description.abstractShuttle Radar Topographic Mission (SRTM) DEM is widely used in analyzing topography of developing countries because it is freely available. But due to its coarse resolution (3 arc-second or 90m), the SRTM is sometimes not appropriate for use in hydrologic analysis and deriving stream networks. The purpose of this study was to evaluate the potential and performance of seven interpolation techniques as a means of refining the resolution to 30m. IDW with exponents of 0.5, 1, and 2, regularized and tension Spline, Kriging, and Natural Neighbor interpolation were tested using ArcGIS 9.1 Spatial Analyst. The obtained elevation, slope, aspect, sink, and stream networks from the interpolated 30m DEM were compared quantitatively with those derived from the original 30m SRTM DEM. The Renasco River area of New Mexico was selected for the analysis area because it has a range of topographic features from flat lands and hills, to mountains.en
dc.description.notesCCRA-2 (Watershed Modeling)en
dc.format.mimetypetext/plainen
dc.identifier3892en
dc.identifier.citationPaper no. 085214 presented at the 2008 ASABE Annual International Meeting, Rhode Island Convention Center, Providence, RI, 29 June-2 July 2008en
dc.identifier.urihttp://hdl.handle.net/10919/68191en
dc.language.isoen_USen
dc.publisherSt. Joseph, MI: American Society of Agricultural and Biological Engineers (ASABE)en
dc.relation.urihttp://asae.frymulti.com/azdez.asp?JID=5&AID=25198&CID=prov2008&T=2en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectGISen
dc.subjectModelingen
dc.subjectWatershed managementen
dc.subjectInterpolationen
dc.subjectSRTMen
dc.subjectSplineen
dc.subjectIdwen
dc.subjectNatural neighboren
dc.subjectKrigingen
dc.subjectCubic convolutionen
dc.subjectElevationen
dc.subjectSlopeen
dc.subjectSinken
dc.subjectWatershed modelingen
dc.subjectShuttle radar topographic mission,en
dc.subjectEcosystemen
dc.titleAssessment of interpolation methods for refining SRTM and DEMen
dc.typeAbstracten
dc.type.dcmitypeTexten

Files

Collections

Sustainable Agriculture and Natural Resource Management (SANREM) Knowledgebase