The concept of a microwave radar with an asymmetric knifelike beam for the remote sensing of ocean waves

Karaev, V.Y., Kanevsky, M.B., Balandina, G.N., Challenor, P., Gommenginger, C. and Srokosz, M. (2005) The concept of a microwave radar with an asymmetric knifelike beam for the remote sensing of ocean waves. Journal of Atmospheric and Oceanic Technology, 22 (11), 1809-1820. (doi:10.1175/JTECH1807.1).

Abstract

The features of near-nadir probing of the ocean surface from a satellite are investigated, and a new configuration of a microwave radar for the surface slopes measurement is proposed. Numerical modeling is used to examine the feasibility of a spaceborne implementation, to devise a measuring technique, and to develop a data processing algorithm.

It is shown that the radar with a knifelike beam (1° × 25°–30°) can be used to measure the variance of surface wave slopes. Using range selection and a new processing procedure to synthesize data, it is possible to achieve the spatial resolution required to study wave processes on the ocean surface from satellites. A new approach to wind speed retrieval at and near nadir is also discussed.

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