The analysis of wind exponents retrieved from microwave radar and radiometric measurements

• Published in: IEEE transactions on geoscience and remote sensing Vol. 38; no. 1; pp. 470 - 479
• Main Authors: Trokhimovski, Y.G., Irisov, V.G.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.01.2000; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied geophysics; Density; Density measurement; Earth sciences; Earth, ocean, space; Exact sciences and technology; Exponents; Goniometers; Internal geophysics; Microwave measurements; Microwave radiometry; Microwaves; Oceans; Parametrization; Radar measurements; Remote sensing; Sea measurements; Spectra; Velocity measurement; Wind speed; microwaves; brightness temperature; winds; anisotropy; radiometry; remote sensing; velocity; ocean waves
• ISSN: 0196-2892; 1558-0644
• DOI: 10.1109/36.823942

The analysis of the dependence of gravity-capillary spectral density on wind speed is based on near-nadir microwave radiometric measurements and VV scatterometric measurements at view angles 30/spl deg/-60/spl deg/ from nadir obtained by different investigators in field experiments during the last 25 years. Wind exponents estimated by a symmetric-regression technique for moderate wind speed are consistent both for radiometric and scatterometric measurements. Using Donelan and Pierson's approach, a parameterization of the exponent in the nonlinear dissipation term is derived. The results obtained can be used in model development for the purposes of microwave remote sensing of the ocean.