Water Vapor Measurements by Mobile Raman Lidar Over The Mediterranean Sea in the Framework of HyMex: Application to Multi-Platform Validation of Moisture Profiles
1 IPSL/LSCE, UMR 8212 CEA-CNRS-UVSQ, 91191 Gif-sur-Yvette Cedex, France
2 IPSL/LATMOS, UMR 8190 CNRS-UVSQ, Sorbonne Universités, UPMC (Paris 06), 75005 Paris
3 CNRM/GAME, UMR 3589 Météo-France-CNRS, 31057 Toulouse Cedex
4 IGN/LAREG, Sorbonne Paris Cité, Université Paris Diderot (Paris 07), 75013 Paris
Published online: 7 June 2016
The Water Aerosol Lidar (WALI) system, deployed for 14 weeks during 2012 & 2013 on the island of Menorca, provided the Hydrological cycle in the Mediterranean eXperiment (HyMeX) with an opportunity to perform a multi-platform comparison on moisture retrievals at the timescales relevant for extreme precipitation events in the West Mediterranean basin. After calibration, the WALI lidar yields nighttime profiles of water vapor with ~7% accuracy from the ground up to 7 km, and daytime coverage of the lower layers, alongside common aerosol retrievals. It is used to characterize the water vapor profile product given by the IASI instrument on-board MetOp-B, and the fields simulated by the Météo-France AROME-WMED model and the open-source WRF model. IASI is found to be reliable above 1 km altitude, and the two models obtain similar high scores in the middle troposphere; WRF beneficiates from a more accurate modelling of the planetary boundary layer.
© Owned by the authors, published by EDP Sciences, 2016
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