摘要
基于2012年11月至12月上午轨道星Terra共7景MODIS数据,对影响青海省的一次典型沙尘事件进行研究。结果表明,沙尘天气始于2012年11月18日,在12月1日及2日达到高峰,持续到12月18日趋于减弱;沙尘天气影响区域范围较广,主要影响省域西北、东北地区,面积占省域面积的11.26%至43.36%;沙尘天气扩散趋势与路径整体上由西北向东北地区,东部人口密集区沙尘天气出现时间相对西北地区、青南高原地区出现滞后。
Based on the 7 view MODIS data of Terra satellite from November to December 2012,a typical sand dust event that affecting Qinghai province was studied.The results showed that this sand dust began on November 18,2012,reached a peak on December 1st and 2nd,and tended to decline until December 18th.Sand dust affects a wide range of areas,mainly the Northwest and Northeast of the province,and the affected area accounts for 11.26%to 43.36%of the total area of the province.The sand dust moved from the Northwest to the Northeast,the occurrence time in the densely populated area of Eastern was lagging behind that in Northwest and Southern plateau areas in Qinghai Province.
作者
祁佳丽
李生寿
李淑敏
QI Jia-li;LI Sheng-shou;LI Shu-min(Qinghai Ecosystem Remote Sensing Monitoring Center,Xining,Qinghai 810007,China;The Source of Three Rivers Ecological Protection Fund Office,Xining,Qinghai 810007,China;Qinghai Environmental Monitoring Center,Xining,Qinghai 810007,China)
出处
《环境监控与预警》
2018年第4期19-23,共5页
Environmental Monitoring and Forewarning
