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Proceedings Paper

SeaWinds scatterometer on QuikSCAT mission and the emerging land and ocean applications
Author(s): Wu-Yang Tsai; Son V. Nghiem; Jakob J. Vanzyl
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Paper Abstract

Spaceborne scatterometers are active microwave radar instruments designed to acquire near-simultaneous, spatially collocated measurements of the normalized radar backscattering cross section (sigma0) of the global surface from several azimuth and/or incidence angles. The primary objective of the scatterometer mission is to measure the near-surface wind speed and direction over the global ocean using sigma0 measurements together with a wind geophysical model function. However, since sigma0 measurements are collected globally all the time, sigma0 data can also be used for global land and ice applications. In this paper, we will first present the objectives of the QSCAT mission, the instrument design, and the unique features of the Ku- band scatterometer currently in operation, called SeaWinds on QuikSCAT (QSCAT). We will then present some emerging land and ocean applications of the QSCAT data, which include (1) global snow detection and monitoring, (2) melt region mapping on the Greenland ice sheet, (3) Monsoon flood detection and monitoring, (4) soil wetness application at large scale, and (5) hurricane monitoring and tracking.

Paper Details

Date Published: 21 December 2000
PDF: 11 pages
Proc. SPIE 4152, Microwave Remote Sensing of the Atmosphere and Environment II, (21 December 2000); doi: 10.1117/12.410586
Show Author Affiliations
Wu-Yang Tsai, Jet Propulsion Lab. (United States)
Son V. Nghiem, Jet Propulsion Lab. (United States)
Jakob J. Vanzyl, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 4152:
Microwave Remote Sensing of the Atmosphere and Environment II
Thomas T. Wilheit; Harunobu Masuko; Hiroyuki Wakabayashi, Editor(s)

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