期刊论文

中文

生态环境学报

1674-5906

2014

23

11

1799-1805

10.16258/j.cnki.1674-5906.2014.11.006

国家自然科学基金项目（41371228）；

本校为第一机构

洞庭湖是我国第二大的淡水湖,对区域气候的调节起着极其关键的作用,然而受全球变暖及其他因素的影响,洞庭湖区范围内对气候变化的响应并不一致。为了更好地认识洞庭湖区的地表温度变化及其对全球变暖的响应情况,同时为准确的判断该区温度未来的变化趋势奠定基础,利用1995年、2004年和2013年12景冬季Landsat TM/ETM+遥感影像的热红外波段数据反演了洞庭湖区地表温度,并对反演的地表温度值进行标准化处理,采用标准差分类法得到地表温度等级图。通过三时相温度等级图的面积统计与直观对比,分析了洞庭湖区在三峡蓄水前后的温度时空变化特征;并结合归一化植被指数(NDVI)、降雨资料、DEM、坡度等数据对...

As the second largest fresh lake in China, Dongting Lake plays a significant role in regulating regional climate. However, due to global warming and other factors, its responses to climate change are not consistent within the Dongting area. For a better understanding of the land surface temperature (LST) change of the Dongting Lake area and its responses to global warming, and also for a better prediction of the LST variation trend, the LST of Dongting Lake area was retrieved using wintertime data of the 12 Landsat TM/ETM+ thermal infrared band images in 1995, 2004 and 2013. The standardized p...