|
|||||
|
|
| 使用MODIS陆地产品LST和NDVI监测中国中、西部干旱 | |
| 引用本文： | 田辉,马耀明,胡晓,陆登荣,马伟强,李茂善,孙方林.使用MODIS陆地产品LST和NDVI监测中国中、西部干旱[J].高原气象,2007,26(5):1086-1096. |
| 作者姓名： | 田辉 马耀明 胡晓 陆登荣 马伟强 李茂善 孙方林 |
| 作者单位： | 1. 中国科学院,寒区旱区环境与工程研究所西部气候环境与灾害实验室,甘肃,兰州,730000 2. 中国科学院,青藏高原研究所,北京,100085;中国科学院,寒区旱区环境与工程研究所西部气候环境与灾害实验室,甘肃,兰州,730000 3. 甘肃省气象局,甘肃,兰州,730020 |
| 基金项目： | 国家自然科学基金项目(40520140126和40675012)，中国科学院知识创新工程重要方向项目(KZCX3-SW-231)共同资助 |
| 摘 要： | 利用中分辨率成像光谱仪AQUA-MODIS卫星资料反演的地表温度LST和归一化差值植被指数NDVI,在中国中、西部地区应用植被温度混合状态指数VTCI方法,遥感监测干旱的空间分布状况。同时结合该地区有代表性的气象站逐月降水资料与VTCI指数进行相关分析,来验证此方法的适用性。结果表明,VTCI指数不仅与当月的降水量,也与其前期2至6个月的累积降水量有较好的线性相关性,显示VTCI方法不仅是较为有效的近实时大范围干旱监测方法,对于干旱的缓慢发展过程也有一定指示作用。 |
| 关 键 词： | MODIS陆地产品 植被温度状态指数 干旱监测 |
| 文章编号： | 1000-0534（2007）05-1086-11 |
| 修稿时间： | 2006-08-29 |
Monitoring Drought in Mid-Western China Using MODIS Land Product LST and NDVI |
|
| TIAN Hui,MA Yao-min,HU Xiao,LU Deng-rong,MA Wei-qiang,LI Mao-shan,SUN Fang-ling.Monitoring Drought in Mid-Western China Using MODIS Land Product LST and NDVI[J].Plateau Meteorology,2007,26(5):1086-1096. | |
| Authors: | TIAN Hui MA Yao-min HU Xiao LU Deng-rong MA Wei-qiang LI Mao-shan SUN Fang-ling |
| Institution: | 1.Laboratory for Climate Environment and Disasters of Western China;Cold and Arid Regions Environment and Engineering Research Institute;Chinese Academy of Sciences;Lanzhou 730000;China;2.Institute of Tibet Plateau;Chinese Academy of Sciences;Beijing 100085;China;3.Gansu Meteorological Bureau;Lanzhou 730020;China |
| Abstract: | Using AQUA-MODIS(Moderate Resolution Imaging Spectoradiometer) land product LST and NDVI,a monitoring drought approach which is called Vegetation and Temperature Condition Index(VTCI) is applied in the mid-western China.The ground precipitation data from the representative stations over the mid-western China are used to validate the drought monitoring method via correlation analysis.The results show that VTCI is not only related to rainfall events within one month but also related to the cumulative impact of the rainfall amount during past two to six months,which indicates that VTCI can be used as a valid and near real time drought monitoring method on a large scale. |
| Keywords: | MODIS land products Vegetation and temperature condition index Drought monitoring |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |