Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Etats Unis → 1991 → Use of processed LANDSAT thematic mapper data to detect surface soil moisture over mountain pediments, southeastern Arizona

University of Arizona (1991)

Use of processed LANDSAT thematic mapper data to detect surface soil moisture over mountain pediments, southeastern Arizona

Skirvin, Susan Marie

Titre : Use of processed LANDSAT thematic mapper data to detect surface soil moisture over mountain pediments, southeastern Arizona

Auteur : Skirvin, Susan Marie

Université de soutenance : University of Arizona

Grade : Master of Science (MS) 1991

Résumé
In order to study geologic influence on shallow groundwater movement over mountain pediments at reconnaissance scale, a set of modeling algorithms, developed by V. J. Realmuto, were employed in analysis of remotely sensed imagery to detect seasonal change in the single-scattering albedo component of ground reflectance, attributable to residual surface soil moisture. Maps of single-scattering albedo change were made from processed LANDS AT 5 Thematic Mapper wet and dry season scenes. A digital elevation model and published atmospheric data were used in deriving surface reflectance from radiance data. Areas of vegetation-dominated albedo change were excluded from the final albedo change map, which depicts areas of anomalously low single-scattering albedo due to wet season retention of surface soil moisture. Mapped exposures of wet soils were confirmed by field observation ; however, dense vegetation was correlated with shallow groundwater in the Whetstone Mountains study area, and masked groundwater-related surface reflectance change.

Présentation

Version intégrale (1,38 Mb)

Page publiée le 2 mai 2016, mise à jour le 22 février 2018