The relationship analysis of vegetation cover, rainfall and land surface temperature based on remote sensing in Tibet, China | |
Li Leilei; Fan Jianrong | |
2014-08 | |
会议名称 | 35th International Symposium on Remote Sensing of Environment (ISRSE35) |
会议日期 | 2013.04.22-26 |
会议地点 | Beijing |
关键词 | vegetation cover rainfall land surface temperature |
页码 | 012034 |
通讯作者 | Fan Jianrong |
中文摘要 | The analyses of vegetation influenced by meteorological factors contribute to research the relationships between terrestrial ecosystems and climate changes. Using the data of normalized difference vegetation index, land surface temperature from MODIS satellite products and rainfall from TRMM satellite products to build 16-day data sequence from 2000 to 2011 years, this paper analyzed the spatial-temporal distribution of vegetation cover, land surface temperature and rainfall, and also discussed the relationships among three factors in Tibet. The results indicated that the mean vegetation coverage in August varied in the range of 0% to 99% depending on location. The southeastern part of Tibet had annual rainfall of 600~800 mm, whereas the western part suffered from drought with a value below 200 mm. The mean annual land surface temperature varied between −8.9°C and 16.3°C. During the whole year, the correlation coefficient between vegetation index and land surface temperature was the smallest in July. The correlation coefficient between vegetation index and rainfall was the biggest in September. Vegetation was influenced greater by the rainfall than land surface temperature from April to October in Tibet. |
英文摘要 | The analyses of vegetation influenced by meteorological factors contribute to research the relationships between terrestrial ecosystems and climate changes. Using the data of normalized difference vegetation index, land surface temperature from MODIS satellite products and rainfall from TRMM satellite products to build 16-day data sequence from 2000 to 2011 years, this paper analyzed the spatial-temporal distribution of vegetation cover, land surface temperature and rainfall, and also discussed the relationships among three factors in Tibet. The results indicated that the mean vegetation coverage in August varied in the range of 0% to 99% depending on location. The southeastern part of Tibet had annual rainfall of 600~800 mm, whereas the western part suffered from drought with a value below 200 mm. The mean annual land surface temperature varied between −8.9°C and 16.3°C. During the whole year, the correlation coefficient between vegetation index and land surface temperature was the smallest in July. The correlation coefficient between vegetation index and rainfall was the biggest in September. Vegetation was influenced greater by the rainfall than land surface temperature from April to October in Tibet. |
会议主办者 | International Society for Digital Earth ; The Center for Earth Observation and Digital Earth (CEODE), Chinese Academy of Sciences |
会议录 | Earth and Environmental Science |
学科主题 | 摄影测量与遥感技术 |
语种 | 英语 |
内容类型 | 会议论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/7544] |
专题 | 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
推荐引用方式 GB/T 7714 | Li Leilei,Fan Jianrong. The relationship analysis of vegetation cover, rainfall and land surface temperature based on remote sensing in Tibet, China[C]. 见:35th International Symposium on Remote Sensing of Environment (ISRSE35). Beijing. 2013.04.22-26. |
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