Water vapor retrieval over ocean using POLDER near-IR channels

A methodology for water vapor retrieval over ocean, using a differential absorption technique from near-IR channels, is presented. Over ocean, surface reflectance is close to zero and aerosol scattering is used to estimate water vapor contents, from an accurate radiative transfer code to account for optical thickness and scale height of aerosols. This method has been applied to POLDER data and comparisons with ECMWF (European Centre for Medium-Range Weather Forecasts) data are presented over the Straits of Gibraltar.

[1]  Didier Tanré,et al.  Atmospheric water vapor content from spaceborne POLDER measurements , 1999, IEEE Trans. Geosci. Remote. Sens..

[2]  Robert Frouin,et al.  Determination from Space of Atmospheric Total Water Vapor Amounts by Differential Absorption near 940 nm: Theory and Airborne Verification , 1990 .

[3]  Michèle Vesperini.  ECMWF analyses of humidity: comparisons to POLDER estimates over land , 2002 .

[4]  A. Lacis,et al.  A description of the correlated k distribution method for modeling nongray gaseous absorption, thermal emission, and multiple scattering in vertically inhomogeneous atmospheres , 1991 .

[5]  P. Dubuisson,et al.  High spectral resolution solar radiative transfer in absorbing and scattering media: Application to the satellite simulation , 1996 .

[6]  Philippe Dubuisson,et al.  Surface pressure estimates from satellite data in the oxygen A‐band: Applications to the MOS sensor over land , 2001 .

[7]  M. Herman,et al.  Cloud detection and derivation of cloud properties from POLDER , 1997 .

[8]  Didier Tanré,et al.  Atmospheric water vapor estimate by a differential absorption technique with the polarisation and directionality of the Earth reflectances (POLDER) instrument , 1997 .

[9]  K. Stamnes,et al.  Numerically stable algorithm for discrete-ordinate-method radiative transfer in multiple scattering and emitting layered media. , 1988, Applied optics.

[10]  François-Marie Bréon,et al.  Land Surface Pressure Estimate from Measurements in the Oxygen A Absorption Band. , 1996 .