摘要
MODTRAN的理论模拟和实际卫星图象分析结果表明 :分裂窗亮温差与 1 1 μm红外亮温的比值可以很好地反映弱沙尘的存在。当强沙尘出现时 ,借助于可见光、红外和水汽图象的光谱分类技术是监测沙尘暴的有效手段。作者首先介绍分裂窗处理技术和光谱分类技术 ,而后展示了国家卫星气象中心静止气象卫星沙尘暴自动监测精度的初步检验结果。
Both MODTRAN simulations and Satellite observations show that the ratio of the temperature difference between spilt windows channels to 11 μm brightness temperatures is a available indicator to monitor dust storm, and with spectral classification technique, visible, infrared,and water vapor images can track strong dust storm outbreaks. This paper presents the applications of split window channel technique and spectral classification technique in dust storm monitoring.
出处
《气候与环境研究》
CSCD
2003年第1期101-106,共6页
Climatic and Environmental Research
基金
国家科技部社会公益研究专项资金项目"我国西北地区生态气候环境监测预测方法研究"资助
