Preliminary study of the impact of ERS-1 scatterometer wind data on numerical wave modelling

Author

Meur, D. Le ; Roquet, H. ; Lefèvre, J.M. ; Fradon, B. ; Tournadre, J.

Author_Institution

Meteo-France/SCEM, Toulouse, France

Volume

1

fYear

1994

fDate

13-16 Sep 1994

Abstract

The impact of ERS-1 scatterometer wind data on numerical wave modelling is investigated with the second generation wave model of Me´te´o-France VAGATLA over the North Atlantic Ocean, in the framework of the SEMAPHORE experiment. The optimum interpolation of scatterometer data is first reconsidered and used to re-analyze the driving wind fields from the French weather model ARPEGE. The wave model is then run to produce new hindcasts with the re-analyzed fields. The impact of the scatterometer data is evaluated by comparing the hindcasts obtained with and without wind re-analysis with the available measurements. Clear improvements are found in the description of the significant wave heights and the representation of the energy spectrum

Keywords

electromagnetic wave scattering; meteorological radar; modelling; ocean waves; oceanographic regions; remote sensing by radar; wind; ERS-1 scatterometer wind data; French weather model ARPEGE; Meteo-France VAGATLA; North Atlantic Ocean; SEMAPHORE experiment; driving wind fields; energy spectrum; hindcasts; numerical wave modelling; optimum interpolation; significant wave heights; Interpolation; Numerical models; Oceans; Predictive models; Radar measurements; Sea measurements; Sea surface; Spaceborne radar; Weather forecasting; Wind forecasting;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings

Conference_Location

Brest

Print_ISBN

0-7803-2056-5

Type

conf

DOI

10.1109/OCEANS.1994.363938

Filename

363938