NDLI: Remote sensing of extreme events with satellite microwave sensors

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Remote sensing of extreme events with satellite microwave sensors

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Remote sensing of extreme events with satellite microwave sensors

Content Provider	IEEE Xplore Digital Library
Author	Quilfen, Y. Katsaros, K. Chapron, B.
Copyright Year	1994
Description	Author affiliation: IFREMER, Plouzane, France (Quilfen, Y.; Katsaros, K.; Chapron, B.)
Abstract	Unprecedented views of surface wind and wave fields in tropical cyclones (TCs) are now provided respectively by the C-band (5.3 GHz) scatterometer and Synthetic Aperture Radar (SAR) on the European Remote Sensing Satellite-1 (ERS-1). Indeed, their signals at C-band are able to penetrate the thick convective clouds of these storms, observing the wind fields and directional wave spectra with good accuracy. Patterns of sea-state and surface wind are described and compared with the forecasting model of the European Center for Range Medium Weather Forecasts. It shows that this kind of strong mesoscale event are often missed by the model, mainly due to the lack of input data and because TC physics are not well understood. The use of microwave data allows greater confidence and greater temporal and spatial coverage for monitoring TCs over the open ocean. The combination of observations of different parameters by several sensors is necessary for two reasons: 1) in order to improve the understanding of feedback mechanism between the surface wind and heat fluxes that govern the development and behavior of TCs; 2) in order to know how the different parameters interact to modify the radar measurements (e.g. influence of sea-state and atmospheric water content on scatterometer wind measurements, and knowledge of the wind vector to resolve ambiguities in the wave directional spectrum as measured by the SAR). Improvements of the actual scatterometer system are discussed in order to define the best system for tropical cyclone monitoring in the future.
File Size	586842
File Format	PDF
ISBN	0780320565
DOI	10.1109/OCEANS.1994.363947
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-09-13
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Remote sensing Satellites Microwave sensors Radar measurements Sea surface Synthetic aperture radar Wind forecasting Weather forecasting Surface waves Tropical cyclones
Content Type	Text
Resource Type	Article

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