Vegetation study of Amazon using QSCAT in comparison with SASS, ESCAT and NSCAT

Document Type

Article

Publication Date

2000

Publication Title

IEEE 2000 International Geoscience and Remote Sensing Symposium - Taking the Pulse of the Planet: The Role of Remote Sensing in Managing the Environment

Publisher

Institute of Electrical and Electronics Engineers

Volume

1

First page number:

429

Last page number:

431

Abstract

The Amazon basin presents a large geographical zone that has undergone significant land cover changes during the last few decades due to accelerated logging and other anthropogenic influences. Amazon forest consists of diverse types of vegetation, which vary with various geophysical factors, like latitude, moisture, rainfall etc. In this paper, variations in the radar backscatter measurements (σ°) from various scatterometers over the Amazon basin are presented for selected study regions. C-band σ° from ERS scatterometer (ESCAT) are found to exhibit a general decrease over the period 1992-1999. ESCAT and Ku band NASA scatterometer (NSCAT) σ° measurements are compared to study the multi-spectral signatures and are, in general, found consistent. Ku band σ° measurements from SeaWinds on QuikScat (QSCAT) are used in conjunction with the NSCAT and Seasat scatterometer (SASS) data to study the change since 1978.

Keywords

Amazon basin; Remote sensing; Vegetation changes

Disciplines

Environmental Monitoring | Geographic Information Sciences | Plant Sciences

Language

English

Comments

Conference held: July 24-28, 2000, Honolulu, HI


©2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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