TY - JOUR AU - Ricaud, Philippe PY - 2014// TI - Variabilités de la vapeur d’eau et de la température troposphérique mesurées par le radiomètre micro-onde HAMSTRAD au Dôme C, Antarctique. Partie II : Résultats scientifiques JO - La Météorologie SP - 35 EP - 46 VL - 85 N2 - The H2O Antarctica Microwave Stratospheric and Tropospheric Radiometers (HAMSTRAD) program aims to develop a ground-based microwave radiometer to measure tropospheric water vapor and temperature vertical profiles above the Dome C station, Concordia, Antarctica. The present article deals with the scientific results obtained with the vertical profiles of H2O and temperature from 0 to 10 km above the station coupled with other data sets (in situ, satellite, radiosonde, analyses and mesoscale model). The short-term variability (diurnal variation) has been studied in the lowermost troposphere according to the season to highlight the time evolution of the different sub-layers within the atmospheric boundary layer. Considering back-trajectory studies, the intra-seasonal variability of H2O and temperature in the troposphere comes mainly from the origin of air masses reaching the Dome C station, oceanic or continental, producing a high correlation rate between H2O and temperature. In a case study, a mesoscale model tends to calculate a wetter and warmer atmosphere than observations in the atmospheric boundary layer. SN - 0026-1181 UR - http://dx.doi.org/10.4267/2042/53749 N1 - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=4965), last updated on Wed, 03 Jul 2024 11:51:52 +0200 ID - Ricaud2014 ER -