气候变化领域集成服务门户(CCPortal): Evaluation of spatial-temporal dynamics in surface water temperature of Qinghai Lake from 2001 to 2010 by using MODIS data

CCPortal

DOI	10.1007/s40333-013-0188-5
	Evaluation of spatial-temporal dynamics in surface water temperature of Qinghai Lake from 2001 to 2010 by using MODIS data
	Xiao, Fei; Ling, Feng; Du, Yun; Feng, Qi; Yan, Yi; Chen, Hui
发表日期	2013
ISSN	1674-6767
EISSN	2194-7783
卷号	5 期号:4
英文摘要	Lake surface water temperature (SWT) is an important indicator of lake state relative to its water chemistry and aquatic ecosystem, in addition to being an important regional climate indicator. However, few literatures involving spatial-temporal changes of lake SWT in the Qinghai-Tibet Plateau, including Qinghai Lake, are available. Our objective is to study the spatial-temporal changes in SWT of Qinghai Lake from 2001 to 2010, using Moderate-resolution Imaging Spectroradiometer (MODIS) data. Based on each pixel, we calculated the temporal SWT variations and long-term trends, compared the spatial patterns of annual average SWT in different years, and mapped and analyzed the seasonal cycles of the spatial patterns of SWT. The results revealed that the differences between the average daily SWT and air temperature during the temperature decreasing phase were relatively larger than those during the temperature increasing phase. The increasing rate of the annual average SWT during the study period was about 0.01A degrees C/a, followed by an increasing rate of about 0.05A degrees C/a in annual average air temperature. The annual average SWT from 2001 to 2010 showed similar spatial patterns, while the SWT spatial changes from January to December demonstrated an interesting seasonal reversion pattern. The high-temperature area transformed stepwise from the south to the north regions and then back to the south region from January to December, whereas the low-temperature area demonstrated a reversed annual cyclical trace. The spatial-temporal patterns of SWTs were shaped by the topography of the lake basin and the distribution of drainages.
关键词	surface water temperature (SWT)spatial-temporal changes MODIS Qinghai Lake
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	JOURNAL OF ARID LAND
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111695
作者单位	Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Fei,Ling, Feng,Du, Yun,et al. Evaluation of spatial-temporal dynamics in surface water temperature of Qinghai Lake from 2001 to 2010 by using MODIS data[J]. 中国科学院西北生态环境资源研究院,2013,5(4).
APA	Xiao, Fei,Ling, Feng,Du, Yun,Feng, Qi,Yan, Yi,&Chen, Hui.(2013).Evaluation of spatial-temporal dynamics in surface water temperature of Qinghai Lake from 2001 to 2010 by using MODIS data.JOURNAL OF ARID LAND,5(4).
MLA	Xiao, Fei,et al."Evaluation of spatial-temporal dynamics in surface water temperature of Qinghai Lake from 2001 to 2010 by using MODIS data".JOURNAL OF ARID LAND 5.4(2013).