On the feasibility of the use of wind SAR to downscale waves on shallow water
In recent years, wave reanalyses have become popular as a powerful source of information for wave climate research and engineering applications. These wave reanalyses provide continuous time series of offshore wave parameters; nevertheless, in coastal areas or shallow water, waves are poorly describ...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2016-01-01
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| Series: | Ocean Science |
| Online Access: | http://www.ocean-sci.net/12/39/2016/os-12-39-2016.pdf |
| _version_ | 1811211260171124736 |
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| author | O. Q. Gutiérrez F. Filipponi A. Taramelli E. Valentini P. Camus F. J. Méndez |
| author_facet | O. Q. Gutiérrez F. Filipponi A. Taramelli E. Valentini P. Camus F. J. Méndez |
| author_sort | O. Q. Gutiérrez |
| collection | DOAJ |
| description | In recent years, wave reanalyses have become popular as a powerful source of
information for wave climate research and engineering applications. These
wave reanalyses provide continuous time series of offshore wave parameters;
nevertheless, in 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 at the
limit of simulations; wind reanalyses 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 fields at high resolution (up to 300 m)
and high frequency.
<br><br>
In this work a wave downscaling is done on the northern Adriatic Sea, using a
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, such as SAR wind fields, can be successfully up-taken into
oceanographic modeling, producing similar downscaled wave fields when
compared to waves forced with reanalysis wind. |
| first_indexed | 2024-04-12T05:11:05Z |
| format | Article |
| id | doaj.art-ebfd134e7d4941f8bc8c1aa4d3212006 |
| institution | Directory Open Access Journal |
| issn | 1812-0784 1812-0792 |
| language | English |
| last_indexed | 2024-04-12T05:11:05Z |
| publishDate | 2016-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Ocean Science |
| spelling | doaj.art-ebfd134e7d4941f8bc8c1aa4d32120062022-12-22T03:46:46ZengCopernicus PublicationsOcean Science1812-07841812-07922016-01-01121394910.5194/os-12-39-2016On the feasibility of the use of wind SAR to downscale waves on shallow waterO. Q. Gutiérrez0F. Filipponi1A. Taramelli2E. Valentini3P. Camus4F. J. Méndez5Environment Hydraulics Institute IH Cantabria, Universidad de Cantabria, Santander, SpainDepartment of Prevention and Mitigation of Impacts, ISPRA Institute for Environmental Protection and Research, Rome, ItalyDepartment of Prevention and Mitigation of Impacts, ISPRA Institute for Environmental Protection and Research, Rome, ItalyDepartment of Prevention and Mitigation of Impacts, ISPRA Institute for Environmental Protection and Research, Rome, ItalyEnvironment Hydraulics Institute IH Cantabria, Universidad de Cantabria, Santander, SpainEnvironment Hydraulics Institute IH Cantabria, Universidad de Cantabria, Santander, SpainIn recent years, wave reanalyses have become popular as a powerful source of information for wave climate research and engineering applications. These wave reanalyses provide continuous time series of offshore wave parameters; nevertheless, in 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 at the limit of simulations; wind reanalyses 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 fields at high resolution (up to 300 m) and high frequency. <br><br> In this work a wave downscaling is done on the northern Adriatic Sea, using a 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, such as SAR wind fields, can be successfully up-taken into oceanographic modeling, producing similar downscaled wave fields when compared to waves forced with reanalysis wind.http://www.ocean-sci.net/12/39/2016/os-12-39-2016.pdf |
| spellingShingle | O. Q. Gutiérrez F. Filipponi A. Taramelli E. Valentini P. Camus F. J. Méndez On the feasibility of the use of wind SAR to downscale waves on shallow water Ocean Science |
| title | On the feasibility of the use of wind SAR to downscale waves on shallow water |
| title_full | On the feasibility of the use of wind SAR to downscale waves on shallow water |
| title_fullStr | On the feasibility of the use of wind SAR to downscale waves on shallow water |
| title_full_unstemmed | On the feasibility of the use of wind SAR to downscale waves on shallow water |
| title_short | On the feasibility of the use of wind SAR to downscale waves on shallow water |
| title_sort | on the feasibility of the use of wind sar to downscale waves on shallow water |
| url | http://www.ocean-sci.net/12/39/2016/os-12-39-2016.pdf |
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