NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Remote sensing of coastal wetlands biomass using Thematic Mapper wavebandsSpectral data, simulating thematic mapper bands 3, 4 and 5 are gathered in salt and brackish marshes using a hand-held radiometer. Simple regression models are developed equating spectral radiance indices with total live biomass for S. alterniflora in a salt marsh and for a variety of plant species in a brackish marsh. Models are then tested using an independent set of data and compared to harvest estimates of biomass. In the salt marsh, biomass estimates from spectral data are similar to harvest biomass estimates during most of the growing season. Estimates of annual net aerial primary productivity calculated from spectral data are within 21% of production estimated from harvest data. During August, biomass estimates from spectral data in the brackish marsh are similar to biomass estimated by harvesting techniques. At other times during the growing season, spectral data estimates of biomass are not always comparable to harvest biomass estimates. Reasonable estimates of wetlands biomass are possible during the peak of the growing season (August) using spectral data similar to thematic mapper bands 3, 4 and 5 gathered with hand-held radiometers.
Document ID
19860006239
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hardisky, M. A.
(Delaware Univ. Newark, DE, United States)
Klemas, V.
(Delaware Univ. Newark, DE, United States)
Date Acquired
August 12, 2013
Publication Date
November 30, 1985
Publication Information
Publication: Evaluation of Spatial, Radiometric and Spectral Thematic Mapper Performance for Coastal Studies
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: LANDSAT-4 Science Characterization Early Results Symposium
Location: Greenbelt, MD
Country: United States
Start Date: February 23, 1984
End Date: February 24, 1984
Accession Number
86N15709
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

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