NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Geobotanical information contained in Landsat Thematic Mapper images covering southern MissouriLandsat Thematic Mapper (TM) data collected in the late summer, fall, and winter of 1982 over forested bedrocks in southeastern Missouri were used in conjunction with forest surveys, field work, aerial photographs, and laboratory analyses to evaluate multispectral and seasonal information from visible and reflected IR data. The forested bedrock included granites, rhyolites, carbonates, and sandstones. High reflectance in band 4 (760-900 nm) in the summer scene corresponds to regions of xeric forest type. The fact that the xeric regions tend to develop flat-topped canopies, as opposed to irregular canopy surfaces of the wetter mesic areas, may partially control the TM response in bands 4, 5 (155-175 nm) and 7 (208-235 nm). The xeric regions correlated with soils having poor water retention capabilities, such as rhyolites and certain carbonate rocks with nonporous residum layers. An opposite relationship between xeric and mesic forest biomass was noted, if the commonly used TM band ratio 4/3 was used as a surrogate biomass measure. The high band 4 response over xeric forests gives anomalously high biomass estimates.
Document ID
19860063085
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Green, G.
(Washington Univ. Saint Louis, MO, United States)
Arvidson, R.
(Washington Univ. Saint Louis, MO, United States)
Sultan, M.
(Washington Univ. Saint Louis, MO, United States)
Guinness, E.
(Washington University Saint Louis, MO, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Subject Category
Earth Resources And Remote Sensing
Accession Number
86A47823
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available