Speaker
Jia He
(LATMOS, Guyancourt, France)
Description
Water vapor is strongly associated with large-scale atmospheric circulation. Here the water vapor variation in the tropical region (30S ~ 30N) is analyzed for 7 global climate models (CMIP6 framework) and the new global water vapor climate data records (CDR) generated within the ESA Water Vapor CCI+ project (WV_cci). The water vapor data are decomposed into large-scale dynamical regimes (intervals of 10 hPa/day) using the 500 hPa atmospheric vertical velocity to evaluate its link to water vapor variation. While the basic picture of the tropical atmosphere is properly represented by the models (moister in ascending branches, drier in subsiding branches) there are noticeable differences in the patterns that will be discussed.
Primary authors
Jia He
(LATMOS, Guyancourt, France)
Helene Brogniez
(UVSQ Université Paris-Saclay, CNRS Guyancourt, France)
Laurence Picon
(LMD/IPSL, Sorbonne Université, Paris, France)
Marc Schröder
(DWD Offenbach)
René Preusker
(Freie Universität Berlin)
Olaf Danne
(Brockmann Consult, Hamburg, Germany)
