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A new algorithm for wind-vector retrieval from scatterometers

delete2008-07-01
delete40
PRE
AI
B
B. S. Gohil *
A
Abhijit Sarkar
V
Vijay K. Agarwal
DOI:10.1109/LGRS.2008.917129delete
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Abstract

Abstract

En 中文
A new efficient algorithm for retrieving wind-vector solutions from scatterometers is developed based on a criterion of minimum normalized standard deviation (NSD) of wind speed derived from backscatter measurements using a geophysical model function (GMF). Its performance has been evaluated through simulations using QSCAT-1 GMF and the QuikSCAT observational geometry. The present algorithm, named the NSD algorithm, is found to be computationally more efficient (two to three times) besides being at par with the maximum-likelihood estimator (MLE) algorithm in terms of retrieval skill, retrieval errors, and distribution of solutions, on the basis of simulations as well as comparison of limited QuikSCAT-data-derived winds with National Centers for Environmental Prediction and European Centre for Medium-Range Weather Forecasts model winds. Simulation results and analysis of sample QuikSCAT data are presented.
Keywords:
oceansat-2
QuikSCAT
scatterometer
mindvector
retrieval
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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

IEEE Geoscience and Remote Sensing Magazine cover
IEEE Geoscience and Remote Sensing Magazine
IF:
16.4
Papers:
1.0W
Citations:
5.1K

Organization

D
department of space (dos), government of india
Scholars:
4.9K
Papers: 4.4K
Citations: 1
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