Title:
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Wind speed effect on L-band brightness temperature inferred from EuroSTARRS and WISE 2001 field experiments
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Author:
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Etcheto, Jacqueline; Dinnat, Emmanuel P.; Boutin, Jacqueline; Camps Carmona, Adriano José; Miller, J.; Contardo, Stéphanie; Wesson, J.; Font, Jordi; Long, David G.
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
Abstract:
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The results from two field experiments in the Mediterranean
Sea are used to study the wind speed dependence of brightness
temperature at L-band. During the EuroSTARRS airborne
experiment, an L-band radiometer made measurements across a
large wind speed gradient, enabling us to study this dependence
at high wind speed.We compare our results with a two-scale emissivity
model using several representations of the sea state spectrum.
While the results are encouraging, unfortunately the accuracy of
the measurements does not permit us to distinguish between the
so-called twice Durden and Vesecky spectrum and the Elfouhaily
spectrum above 7 m s 1. The effect of foam is certainly small.
During the WISE 2001 field experiment carried on an oil rig, we
studied this dependence at low wind speed, finding an abrupt decrease
of the wind speed effect on the brightness temperature below
3 m s 1. |
Subject(s):
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-Foam -L-band -Sea surface salinity |
Rights:
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Document type:
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Article |
Published by:
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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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