基于MODIS影像的山西省地表温度反演研究

Shanxi Land Surface Temperature Retrieval Based on MODIS Image Data

地表温度信息在水文、气象以及生态学等领域的研究中有重要意义。以2014年5月获取的山西省MODIS影像数据为研究对象,应用分裂窗算法和ENVI软件对该省地表温度进行了反演。结果表明：山西省吕梁山、太行山、中条山等地植被覆盖度高,地表温度较低,在20℃以下;太原盆地、临汾盆地、运城盆地等平原地区的地表温度明显高于丘陵地区,在30-40℃之间,还有小部分地区地表温度在40℃以上。

Land surface temperature information is of great significance in the research fields of hydrology, meteorology, ecology, etc. Taking MODIS image data of Shanxi province in May 2014 as the research object, the study used split-window algorithm and ENVI software to retrieve land surface temperature of Shanxi province. The results showed that in Lvliang mountains, Taihang mountains and Zhongtiao mountains of Shanxi province, the vegetation coverage was high, and the surface temperature was low, below 20 ℃; in plain regions such as Taiyuan basin, Linfen basin and Yuncheng basin, the temperature which was significantly higher than that of hilly areas, was 30-40 ℃, and the temperature was above 40 ℃ in a small part of these plain regions.