摘要
对发生在河西走廊东部的 930 5 0 5特大沙尘暴在甘肃省境内的降尘分布、降尘状况、降尘量等进行了研究。并对此次沙尘暴造成的大气环境的污染范围和有关报道的特强沙尘暴天气影响范围作了比较。前者的影响范围为 35 .5× 10 4 km2 ,后者为 7.0× 10 4 km2 。此次特大沙尘暴在甘肃 80 .7%的总土地面积上共尘降沙尘暴降尘 12 45 .3× 10 4 t·月 -1。
Research and analysis were carried out of the deposition distribution and amount of the 930505 extremely severe sandstorm occured at Jinchang, east Gansu corridor. The main results are as follows: (1) The dust deposition of the sandstorm corers 80.7 percentage of the tatal area of Gansu Province. The totaly amount of dust deposition in Gansu Province is estimated to reached 1 245.3×10\+4 t·mon\+\{-1\} with the maximum value of 699.4×10\+4 t·mon\+\{-1\} in Jinchang area. (2) The active duststorm weather region is about 7.0×10\+4 km\+2, but the area in which the atmospheric environment was severely degraded is much more larger and reach 35.5×10\+4 km\+2.
出处
《高原气象》
CSCD
北大核心
2001年第1期46-51,共6页
Plateau Meteorology
基金
甘肃省环保局科研项目! (GH95 2)"我国西北地区沙尘暴对甘肃大气背景值的影响及卫星遥感技术的应用研究"成果内容之一
关键词
河西走廊
降尘
沉降量
甘肃
930505特大沙尘暴
East Gansu corridor
Desposition of the extremely severe sandstorm
Amount of desposition
