摘要
分析了河西走廊1955—2000年强和特强沙尘暴的气候变化。研究表明,河西走廊强和特强沙尘暴自1955年以来主要呈下降趋势;但是从20世纪90年代末期起,有增多的趋势。20世纪50年代和70年代偏多,60年代正常,80年代偏少,90年代最少。强和特强沙尘暴的突变年份出现在60年代后期和1980年前后。
A study on climate variation of strong and very strong dust storm in Hexi Passageway from 1955 to 2000 is presented. The analyzed results show that the strong and very strong dust storm has mainly decreased since 1955, but increased in the late 1990s. Its trend was more in the 1950′s and 1970′s, normal in the 1960′s, less in the 1980's and the least in the 1990′s. Its climatic jump occurred in later 1960′s and around 1980.
出处
《高原气象》
CSCD
北大核心
2003年第4期422-425,共4页
Plateau Meteorology
