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On the Feasibility of the Use of Wind Sar to Downscale Waves on Shallow Water : Volume 12, Issue 4 (23/07/2015)

By Q. Gutiérrez, O.

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Book Id: WPLBN0004020867
Format Type: PDF Article :
File Size: Pages 27
Reproduction Date: 2015

Title: On the Feasibility of the Use of Wind Sar to Downscale Waves on Shallow Water : Volume 12, Issue 4 (23/07/2015)  
Author: Q. Gutiérrez, O.
Volume: Vol. 12, Issue 4
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Taramelli, A., Valentini, E., Méndez, F. J., Camus, P., Gutiérrez, O. Q., & Filipponi, F. (2015). On the Feasibility of the Use of Wind Sar to Downscale Waves on Shallow Water : Volume 12, Issue 4 (23/07/2015). Retrieved from http://worldlibrary.net/


Description
Description: Environment Hydraulics Institute IH Cantabria, Universidad de Cantabria, Santander, Spain. On the recent years wave reanalysis have become popular as a powerful source of information for wave climate research and engineering applications. These wave reanalysis provide continuous time-series of offshore wave parameters, nevertheless on coastal areas or shallow water waves are poorly described because spatial resolution is not detailed. By means of wave downscaling it is possible to increase spatial resolution in high temporal coverage simulations, using forcing from wind and offshore wave databases. Meanwhile the reanalysis wave databases are enough to describe the wave climate on the limit of simulations, wind reanalysis at an adequate spatial resolution to describe the wind structure near the coast are not frequently available. Remote Sensing Synthetic Aperture Radar (SAR) has the ability to detect sea surface signatures and estimate wind field at high resolution (up to 300 m) and high frequency.

In this work a wave downscaling is done on the northern Adriatic sea, using an hybrid methodology and Global wave and wind reanalysis as forcing. The wave fields produced were compared to wave fields produced with SAR winds that represent the two dominant wind regimes in the area: the Bora (ENE direction) and Sirocco (SE direction). Results show a good correlation between the waves forced with reanalysis wind and SAR wind. In addition, a validation of reanalysis is shown. This research demonstrates how Earth Observation products, as SAR wind fields, can be successfully up-taken into oceanographic modeling, producing similar downscaled wave field when compared to waves forced with reanalysis wind.


Summary
On the feasibility of the use of wind SAR to downscale waves on shallow water

Excerpt
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