Atmospheric Rivers and Associated Precipitation over France and Western Europe: 1980–2020 Climatology and Case Study

Atmospheric rivers are important atmospheric features implicated in the global water vapor budget, cloud distribution, and associated precipitation. The ARiD (Atmospheric River Detector) code has been developed to automatically detect from flux applied ECMWF ERA5 archive over period 1980–2020 above Atlantic Ocean Europe. A case study of an river formed East on August 2014 that reached France detailed using reanalysis, ground based observation data, satellite products such as DARDAR, AIRS, GPCP, GOES. This event presents a strong interaction with intense upper tropospheric jet stream, which induced stratosphere–troposphere exchanges by tropopause fold. climatology Europe presented. west France, Iberian Peninsula, British Islands most impacted regions occurrence up four days per month during October–April period. Up 40% precipitation observed European coast can be linked presence ARs. No significant trend phenomena was found 1980–2020.