the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Water vapor Raman-lidar observations from multiple sites in the framework of WaLiNeAs
Abstract. During the Water Vapor Lidar Network Assimilation (WaLiNeAs) campaign, 8 lidars specifically designed to measure water vapor mixing ratio (WVMR) profiles were deployed on the western Mediterranean coast. The main objectives were to investigate the water vapor content during case studies of heavy precipitation events in the coastal Western Mediterranean and assess the impact of high spatio-temporal WVMR data on numerical weather prediction forecasts by means of state–of–the–art assimilation techniques. Given the increasing occurrence of extreme events due to climate change, WaLiNeAs is the first program in Europe to provide network–like, simultaneous and continuous water vapor profile measurements. This paper focuses on the WVMR profiling datasets obtained from three of the lidars managed by the French component of the WaLiNeAs team. These lidars were deployed in the towns of Coursan, Grau du Roi and Cannes. This measurement setup enabled monitoring of the water vapor content within the low troposphere along a period of three months over autumn – winter 2022 and four months in summer 2023. The lidars measured the WVMR profiles from the surface up to approximately 6–10 km at night, and 1–2 km during daytime; with a vertical resolution of 100 m and a time sampling between 15 – 30 min, selected to meet the needs of weather forecasting with an uncertainty lower than 0.4 g kg-1. The paper presents details about the instruments, the experimental strategy, as well as the datasets given in NETcdf format. The final dataset is divided in two datasets, the first with a time resolution of 15 min, which contains a total of 26 423 WVMR vertical profiles and the second with a time resolution of 30 min to improve the signal to noise ratio and signal altitude range.
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Status: final response (author comments only)
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RC1: 'Comment on essd-2024-73', Anonymous Referee #1, 03 Jun 2024
Detailed minor corrections are given in the annotated pdf file.
Can be accepted after minor corrections.
- AC1: 'Reply on RC1', Frédéric Laly, 09 Oct 2024
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RC2: 'Comment on essd-2024-73', Anonymous Referee #2, 20 Sep 2024
The comment was uploaded in the form of a supplement: https://essd.copernicus.org/preprints/essd-2024-73/essd-2024-73-RC2-supplement.pdf
- AC2: 'Reply on RC2', Frédéric Laly, 09 Oct 2024
Data sets
ESSD WaLiNeAs dataset Frédéric Laly, Patrick Chazette, Julien Totems, Jérémy Lagarrigue, Laurent Forges, and Cyrille Flamant https://doi.org/10.25326/537
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