Monsoonal oscillation revealed by the upper-troposphere water vapor band brightness temperature

查看全文 作　　者：Weihong Qian;Qian Ye;Yafen Zhu 机构地区：[1]Peking Univ, Dept Geophys, Beijing 100871, Peoples R China;[2]Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China; 出　　处：《Chinese Science Bulletin》索引1998年第43卷第17期,共6页 基　　金：Thisworkwassup portedbytheStateEducationCommissionandtheNationalClimbingProjectofChina 摘　　要：The measurements of brightness temperature (BT) from the upper-troposphere water vapor channel 12 of the National Oceanic and Atmospheric Administration polar satellites from 1979 through 1995 are used to analyze the interannual variations of the global monsoon strength. Results show that in the interannual time-sclae the BT variability in the equatorial eastern Pacific (EEP) is out of phase with the BT variabilities in other four regions, i.e. South Asia, tropical south American, two subtropical areas in the South and North Pacific. The BT interannual variation mode may be called monsoonal oscillation (MO). The MO is the result of the atmospheric circulation anomaly in the troposphere. 关 键 词：monsoonal OSCILLATION BRIGHTNESS temperature INTERANNUAL variability.