|
|||||
|
|
| 沙尘源区LST/Albedo时序变化与TSP的对比分析——以2001年春季中国北方强沙尘过程为例 | |
| 引用本文： | 韩秀珍,刘志丽,马建文,张小曳.沙尘源区LST/Albedo时序变化与TSP的对比分析——以2001年春季中国北方强沙尘过程为例[J].地理研究,2004,23(1):19-28. |
| 作者姓名： | 韩秀珍 刘志丽 马建文 张小曳 |
| 作者单位： | 1. 中国科学院遥感应用研究所,北京,100101;中国气象局国家卫星气象中心,北京,100081 2. 中国科学院遥感应用研究所,北京,100101 3. 中国科学院地球环境研究所,西安,710054 |
| 基金项目： | 中国科学院亚洲沙尘暴机理研究项目，数字地球项目 |
| 摘 要： | 20 0 1年春季 ,中国北方多次受到沙尘天气的影响 ,给人们的生产、生活带来严重的威胁 ,引起了亚洲国家的广泛重视。利用卫星监测数据采集沙尘云图变化、运移路径、地表覆盖和沙尘过程中的地面反照率、温度、湿度、粗糙度等物理参数反演实验结果 ,可以弥补地面观测站点稀少、数据不连续的缺陷。本文以 2 0 0 1年 3月到 5月的几次沙尘天气为例 ,介绍基于地表覆盖的AVHRR的LST/Albedo反演结果与TSP (沙尘干量 )对比分析 ,发现它们具有较好的相关性。从而反映了沙尘暴发生前后地表能量的变化状况 ,能为预测预警沙尘天气的危害提供及时客观的空间信息。 |
| 关 键 词： | 沙尘源区 地表温度/反照率 沙尘干量(TSP) |
| 文章编号： | 1000-0585(2004)01-0019-10 |
| 收稿时间： | 2003-04-08 |
| 修稿时间： | 2003-08-11 |
Comparison analysis of AVHRR LST/Albedo temporal changes and TSP data: a case study on strong duststorm process during March to May,2001 |
|
| HAN Xiu-zhen,MA Jian-wen,LIU Zhi-li,ZHANG Xiao-ye.Comparison analysis of AVHRR LST/Albedo temporal changes and TSP data: a case study on strong duststorm process during March to May,2001[J].Geographical Research,2004,23(1):19-28. | |
| Authors: | HAN Xiu-zhen MA Jian-wen LIU Zhi-li ZHANG Xiao-ye |
| Institution: | 1. Institute of Remote Sensing Applications,CAS, Beijing 100101,China;2. National Satellite Meteorological Center,CMA,Beijing 100081,China;3. Institute of Earth Environment,CAS, Xi’an 710054,China |
| Abstract: | In the spring of 2001, several duststorm events occurred in northern China which seriously threatened production and people’s life and caused troubles to air transportations in South Korea and Japan. The duststorm weather was a strong wind erosion process in terms of duststorm source, transportation and precipitation. The mechanism of duststorm process is the cornerstone for duststorm forecast model. Estphal(1988), Joussaume(1990)and Gillette (1989) published a wind erosion based model;Shao (1997)and Lu (2001) took five different factors into account developing an integrated model including climate condition, land cover/change, wind erosion, transportation as well as precipitation factors. The duststorm also had very close relation with surface physical parameters such as soil moisture, temperature roughness and radiation which were the very important parameters for land and air energy exchange. They also played important roles in duststorm process. Brest(1987),Tian(1990) and Zu Hanwen(1993) pubilshed their retrieving models for albedo and temperature using AVHRR data. By using remote sensing data to monitor dust clouds change, transportation road and to retrieve surface temperature, soil moisture, roughness in compensation to the shortcomings of sparsely located observation stations and discontinues data collection. The data retrieved from satellite has become very important data source for duststorm monitoring. Chinese and Japanese-initiated a joint project in 2000 to set up ground observation stations along dust source areas such as transportation roads,precipitation areas for collecting TSP (dry dust precipitation) and utilizing AVHRR data to retrieve albedo(surface energy).And then data were selected from retrieved albedo temporal imageries to make curves and comparison was made between albedo curves and TSP curves. The result showed that there were good correlation betweens the two kinds of curves. It was proved that the LST/Albedo could be one of the physical parameters for predicting duststorm in future monitoring systems. |
| Keywords: | dust source area surface LST/Albedo TSP data |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《地理研究》浏览原始摘要信息 | |
| 点击此处可从《地理研究》下载免费的PDF全文 | |