Title

Remote Detection of Canopy Water Stress in Coniferous Forests Using the NS001 Thematic Mapper Simulator and the Thermal Infrared Multispectral Scanner

Document Type

Article

Publication Title

Photogrammetric Engineering and Remote Sensing

Publication Date

5-1990

Volume

56

Issue

5

First Page

579

Last Page

586

Abstract

Water stress was induced in two coniferous forest stands in Germany in 1986, one a Picea abies stand near Munich and the other a Pinus strobis [P. strobus] stand near Frankfurt. NS001 bands 2 to 6, NS001 indices combining bands 4 and 6, and NS001 and Thermal Infrared Multispectral Scanner (TIMS) thermal bands detected significant radiance differences between adjacent stressed and control plots when large differences in leaf water potential (ΨL) and relative water content (RWC) existed during the morning aircraft overflights at Munich. However, the NS001 and TIMS sensors could not detect the slightly smaller differences in ΨL and RWC during the Munich afternoon or during the Frankfurt overflights. It is concluded that trends of reversible canopy water status in forest trees cannot be operationally detected using current satellite technology.

Rights

© 1990 American Society for Photogrammetry and Remote Sensing (ASPRS)

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