On the parameterization of the drag coefficient in mixed seas
An analysis of the performance of parameterizations for the drag coefficient CD over the ocean is presented. The results were obtained by considering detailed observations from the recent IntOA experiment in which a co-existence of wind sea and swell provides characteristic mixed sea conditions in a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2012-09-01
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| Series: | Scientia Marina |
| Subjects: | |
| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1383 |
| _version_ | 1819297141890220032 |
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| author | Héctor García-Nava Francisco J. Ocampo-Torres Paul A. Hwang |
| author_facet | Héctor García-Nava Francisco J. Ocampo-Torres Paul A. Hwang |
| author_sort | Héctor García-Nava |
| collection | DOAJ |
| description | An analysis of the performance of parameterizations for the drag coefficient CD over the ocean is presented. The results were obtained by considering detailed observations from the recent IntOA experiment in which a co-existence of wind sea and swell provides characteristic mixed sea conditions in a wide range of wind speeds. Recent research has advanced our understanding of air-sea fluxes, proposing new functional forms for the drag coefficient, as well as applying wavelength scaling and determining dimensionally consistent expressions for the drag coefficient. Nevertheless, a detailed analysis of the influence of wind sea parameters confirms the need to include the sea state dependence on parameterizing CD for mixed sea conditions. It is also shown that better results are obtained when aerodynamic roughness is considered as a function of wave age and wave steepness, or equivalently if CD is expressed as a function of a characteristic peak frequency defined through the wave momentum spectrum. |
| first_indexed | 2024-12-24T05:09:18Z |
| format | Article |
| id | doaj.art-61c3c5eb66cb45cbac2311dc79a093da |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-24T05:09:18Z |
| publishDate | 2012-09-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-61c3c5eb66cb45cbac2311dc79a093da2022-12-21T17:13:44ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342012-09-0176S117718610.3989/scimar.03615.19F1368On the parameterization of the drag coefficient in mixed seasHéctor García-Nava0Francisco J. Ocampo-Torres1Paul A. Hwang2Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja CaliforniaDepartamento de Oceanografía Física, Centro de Investigación Científica y de Educación Superior de EnsenadaRemote Sensing Division, Naval Research LaboratoryAn analysis of the performance of parameterizations for the drag coefficient CD over the ocean is presented. The results were obtained by considering detailed observations from the recent IntOA experiment in which a co-existence of wind sea and swell provides characteristic mixed sea conditions in a wide range of wind speeds. Recent research has advanced our understanding of air-sea fluxes, proposing new functional forms for the drag coefficient, as well as applying wavelength scaling and determining dimensionally consistent expressions for the drag coefficient. Nevertheless, a detailed analysis of the influence of wind sea parameters confirms the need to include the sea state dependence on parameterizing CD for mixed sea conditions. It is also shown that better results are obtained when aerodynamic roughness is considered as a function of wave age and wave steepness, or equivalently if CD is expressed as a function of a characteristic peak frequency defined through the wave momentum spectrum.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1383drag coefficientsea stateswellmixed seas |
| spellingShingle | Héctor García-Nava Francisco J. Ocampo-Torres Paul A. Hwang On the parameterization of the drag coefficient in mixed seas Scientia Marina drag coefficient sea state swell mixed seas |
| title | On the parameterization of the drag coefficient in mixed seas |
| title_full | On the parameterization of the drag coefficient in mixed seas |
| title_fullStr | On the parameterization of the drag coefficient in mixed seas |
| title_full_unstemmed | On the parameterization of the drag coefficient in mixed seas |
| title_short | On the parameterization of the drag coefficient in mixed seas |
| title_sort | on the parameterization of the drag coefficient in mixed seas |
| topic | drag coefficient sea state swell mixed seas |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1383 |
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