An improved retrieval algorithm for water vapor retrieval : application to the envisat microwave radiometer Obligis, E. Rahmani, A. /Eymard, Laurence Labroue, S. Bronner, E. Microwave radiometry water vapor retrieval wet tropospheric correction Algorithms proposed to retrieve water vapor are usually developed using statistical regression. Recent results have shown that this global statistical approach creates systematic geographical errors implying systematic biases. In the particular case of the wet tropospheric correction for altimetry missions, these biases directly distort the sea level estimation. After an in-depth analysis of the retrieval errors, we propose a new approach that significantly improves the quality of the retrieval algorithm. 2009 text https://www.documentation.ird.fr/hor/PAR00004047 PAR00004047 Obligis E., Rahmani A., Eymard Laurence, Labroue S., Bronner E.. An improved retrieval algorithm for water vapor retrieval : application to the envisat microwave radiometer. 2009, 47 (9), 3057-3064 EN