| 不同卫星遥感干旱指数在黑龙江的对比应用 |
| |
| 引用本文： | 于敏,王春丽.不同卫星遥感干旱指数在黑龙江的对比应用[J].应用气象学报,2011,22(2):221-231. |
| |
| 作者姓名： | 于敏 王春丽 |
| |
| 作者单位： | 1.黑龙江省气象局，哈尔滨 150001 |
| |
| 摘 要： | 采用MODIS的1 km×1 km分辨率数据，以我国黑龙江为研究区，对基于植被指数的植被状态指数 (IVC)、基于地表温度的温度状态指数 (ITC) 和基于植被指数-地表温度特征空间的植被温度状态指数 (IVTC) 与10 cm，20 cm土壤相对湿度、降水量的关系、3种指数监测结果及其相互关系进行了对比分析。结果表明:IVTC相对于ITC，IVC更适于反映土壤湿度的变化，对浅层土壤湿度更加敏感；IVTC相对于ITC，IVC对降水更敏感，与监测时段的降水和前期总体降水都密切相关；在生长季早期，IVTC和ITC用于干旱监测的适用性明显优于IVC；不同区域间，IVTC的可比性较好，IVC和ITC则较差；IVTC所反映的地表温度信息对干旱的直接指示作用最强，所反映的植被信息对干旱的直接指示作用较弱。
|
| 关 键 词： | 干旱监测 植被状态指数 温度状态指数 植被温度状态指数 |
| 收稿时间： | 2010-08-31 |
Satellite Remote Sensing Drought Monitoring Methods Based on Different Biophysical Indicators |
| |
| Yu Min,Wang Chunli.Satellite Remote Sensing Drought Monitoring Methods Based on Different Biophysical Indicators[J].Quarterly Journal of Applied Meteorology,2011,22(2):221-231. |
| |
| Authors: | Yu Min Wang Chunli |
| |
| Affiliation: | 1.Heilongjiang Provincial Meteorological Bureau, Harbin 1500012.Heilongjiang Provincial Climate Center, Harbin 150030 |
| |
| Abstract: | As a frequent natural hazard,drought causes the heaviest damage to daily life and ecological environment among all natural disasters.The large scale and dynamic drought monitoring has been frontier and hot topic in the global climate change and food security research.Satellite remote sensing is the main method of obtaining distributed information of the land surface.However,the applicability of a drought monitoring method varies by region and period.So it's necessary to inspect and evaluate the drought moni... |
| |
| Keywords: | drought monitoring Vegetation Condition Index Temperature Condition Index Vegetation Temperature Condition Index |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《应用气象学报》浏览原始摘要信息 |
|
点击此处可从《应用气象学报》下载全文 |
