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(abstract) Monitoring Seasonal Change in Taiga Forests Using ERS-1 SAR DataSensitivity of radar backscatter to the dielectric and geometric character of forested regions suggests significant changes in backscatter are expected with season due to freezing temperatures, snow, wind, leaf fall, and drought. The first European Remote Sensing Satellite, ERS-1, offers a unique opportunity to monitor a complete seasonal cycle for the Alaskan taiga forest ecosystem with synthetic aperture radar. During the 3-day repeat Commissioning Phase of ERS-1, from August 1991to December 1991, ERS-1 SAR data were collected in the region of Manley Hot Springs, Alaska, along the Tanana River, west of Fairbanks. In parallel with the SAR data collection, meteorological data from three weather stations positioned in three forest stands were collected continuously along with in situ measurements of the dielectric and moisture properties of the canopy and of ground cover which were collected during each overflight. The in situ data were collected in floodplain forest stands dominated by balsam poplar, white spruce, and black spruce. These results from the Commissioning Phase as well as preliminary results from the 35-day Repeat Phase will be presented.
Document ID
20060038657
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Way, JoBea
Rignot, Eric
McDonald, Kyle
Viereck, Leslie
Williams, Cynthia
Adams, Phyllis
Payne, Cheryl
Wood, William
Date Acquired
August 23, 2013
Publication Date
August 1, 1993
Subject Category
Earth Resources And Remote Sensing
Distribution Limits
Public
Copyright
Other
Keywords
characteristics geometric characteristics moisture conditions meteorological
conditions canopy ground cover
radar backscatter taiga forests seasonal cycles remote sensing dielectric

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