13th Conference on Atmospheric Radiation

5.3

New inferences about cloud structure from POLDER3/PARASOL multiangular measurements in the Oxygen A band

Nicolas Ferlay, Laboratoire d'Optique Atmospherique, Villeneuve d'Ascq, France; and M. Desmons, F. Thieuleux, C. Cornet, C. Vanbauce, P. Dubuisson, F. Ducos, F. Parol, and J. Riedi

We present here evidences that multidirectional measurements in the Oxygen A band from POLDER3 on PARASOL can help to characterize the vertical structure of cloudy atmospheres. For example in the case of monolayer clouds, POLDER cloud oxygen pressure poxy is sensitive to the cloud geometrical thickness H: the mean poxy appears close to the middle-of-the-cloud-layer pressure, and furthermore, its angular standard deviation is very much correlated with H. A climatology of this correlation is performed and studied. That passive measurements could provide such informations, compared with or completing other measurements, could interest a large range of applications where a better definition and account of cloud macrophysical parameters are important and useful.

wrf recordingRecorded presentation

Session 5, Remote Sensing I: Passive
Tuesday, 29 June 2010, 8:30 AM-10:00 AM, Pacific Northwest Ballroom

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