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| Flamant, C; Pelon, J; Eymard, L; Tournadre, Jean. |
| [1] The Special Sensor Microwave Imager (SSM/I) integrated water vapor content (IWVC) estimates in a coastal region during nonstationary cold-air outbreak conditions are analyzed using IWVC retrievals obtained from shipborne microwave radiometry (DRAKKAR), water vapor differential absorption laser remote sensing (LEANDRE 2), radiosonde measurements, and numerical weather prediction (NWP) model ALADIN of Meteo-France. The study focuses on the 24 March 1998 Tramontane/Mistral event, which occurred over the Gulf of Lion (GoL) (western Mediterranean) in the framework of the flux, etat de mer et teledetection en condition de fetch variable (FETCH) experiment. Comparisons of SSM/I and ALADIN IWVCs with collocated shipborne microwave radiometry, at distances from... |
| Tipo: Text |
Palavras-chave: SSM/I; Lidar; Microwave radiometry; Integrated water vapor content; Mistral; FETCH. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00000/10184/7733.pdf |
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| Flamant, C; Pelon, J; Hauser, D; Quentin, C; Drennan, Wm; Gohin, Francis; Chapron, Bertrand; Gourrion, Jerome. |
| [1] Acombination of surface wind speed (SWS) and sea state variables, derived from quasi-simultaneous airborne lidar and radar measurements, made in the framework of the Flux, Etat de mer et Teledetection en Condition de fetcH variable (FETCH) experiment, is used to analyze the evolution of surface roughness length, neutral drag coefficient, and friction velocity coefficient with fetch in the first hundred kilometers offshore over the Gulf of Lion, Western Mediterranean. The study focuses on the Tramontane/ Mistral event documented in the afternoon of 24 March 1998. Particular attention is given to SWS derived from nadir lidar measurements. The SWS retrieval methodology developed and validated for open ocean conditions by Flamant et al. [1998] has been... |
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| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00000/10174/9582.pdf |
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| Hauser, Danièle; Branger, H; Bouffies Cloche, S; Despiau, S; Drennan, W; Dupuis, H; Durand, P; De Madron, X; Estournel, C; Eymard, L; Flamant, C; Graber, H; Guerin, C; Kahma, K; Lachaud, G; Lefevre, J; Pelon, J; Petterson, H; Piguet, B; Queffeulou, Pierre; Tailliez, D; Tournadre, Jean; Weill, A. |
| The "flux, etat de la mer, et tele'de'tection en conditions de fetch variable'' (FETCH) was aimed at studying the physical processes associated with air-sea exchanges and mesoscale oceanic circulation in a coastal region dominated by frequent strong offshore winds. The experiment took place in March-April 1998 in the northwestern Mediterranean Sea (Gulf of Lion). Observations were collected with the R/V L'Atalante, with an air-sea interaction spar (ASIS) buoy, with waverider buoys, and with research aircraft equipped for in situ and remote sensing measurements. The present paper is an introduction to the following special section, which groups 12 papers (including this one) presenting results on turbulent flux measurements at the ocean surface, on the... |
| Tipo: Text |
Palavras-chave: Gulf of Lion; Coastal oceanography; Marine atmospheric boundary layer; Remote sensing; Surface ocean waves; Air/sea interactions. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-747.pdf |
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