摘要
讨论了水汽气候源汇分布的分析方法,认为只有用季节平均的整层大气水汽通量散度才能准确反映水汽源汇的地理分布。分析了亚洲季风区1994年8月水汽源汇分布和输送情况,发现西太平洋120-133°E和孟加拉湾地区是水汽气候源区,其中菲律宾东侧、苏绿湾、黄海海域、安达曼海及布拉马普特拉河谷是最主要的5个水汽强源域。南海不是水汽源而是水汽汇。华北降水主要受亚洲两大季风风系和黄海、布拉马普特拉河谷水汽源的影响。
t is pointed out in the paper that the geographical distribution of source/sink for water vapor can be correctly reflected only by seasonalmean water moisture flux divergence summed up vertically.Results show that the west Pacific(120-133°E) and the Bay of Bengal are the sources of water vapor in Asian monsoon area in August,in which,the five strongest ones are located in east of Philippines,Sulu sea,HuangHai Sea,Andaman Sea and Brahmaputra Valley.The South China Sea is a sink,not a source of water moisture.The rainfall in North China is mainly under the influence of two Monsoon systems in Asia and the water source in HuangHai Sea and Brahmaputra Valley.
出处
《热带气象学报》
CSCD
北大核心
1998年第1期91-96,共6页
Journal of Tropical Meteorology