基于ArcGIS的青藏高原地区气候大陆性格局分布研究

Study on the Distribution of Climate Continental Patterns in the Qinghai-Tibet Plateau Based on ArcGIS

利用Modis温度产品数据集,应用ENVI及ArcGIS软件通过计算青藏高原地区气候大陆度指数(温度法)分析青藏高原地区的水热格局分布,结果表明:青藏高原地区气候大陆性分布呈现明显的区域性分布,且由东南至西北大陆性气候逐步加强;以喜马拉雅山脉和雅鲁藏布江为主的南部区域呈现明显的海洋性气候,且会向北方和东方扩展;以塔里木盆地为中心的地区大陆性气候十分明显,今后会更加严重。通过对青藏高原的气候大陆度的研究,得到青藏地区大陆性气候的变化,可以帮助深入了解青藏高原环境的变化过程、程度、趋势以及可能带来的后果以及对其他地区可能产生的影响,同时促进全球气候变化的研究进程。

This paper uses the Modis temperature product data set,and applies ENVI and ArcGIS software to analyze the distribution of water and heat patterns in the Qinghai-Tibet Plateau by calculating the climate continentality index(temperature method)in the Qinghai-Tibet Plateau.The results show that the climate continental distribution in the Qinghai-Tibet Plateau presents an obvious regional distribution,and the continental climate gradually deepens from the southeast to the northwest;The southern region dominated by the Himalayas and the Brahmaputra presents an obvious oceanic climate,which will expand to the north and east;The continental climate in the region centered on the Tarim Basin is very obvious and will be more serious in the future.Through the study of the climate continentality of the Qinghai-Tibet Plateau,the change of the continental climate in the Qinghai-Tibet region can be obtained,which can help to deeply understand the change process,degree,trend and possible consequences of the environment of the Qinghai-Tibet Plateau,as well as the possible impact on other regions,while promoting the research process of global climate change.