Monitoring and Assessing the 2012 Drought in the Great Plains: Analyzing   Satellite-Retrieved Solar-Induced Chlorophyll Fluorescence, Drought   Indices, and Gross Primary Production

doi:10.3390/rs8020061

CORC > 北京大学 > 地球与空间科学学院

	Monitoring and Assessing the 2012 Drought in the Great Plains: Analyzing Satellite-Retrieved Solar-Induced Chlorophyll Fluorescence, Drought Indices, and Gross Primary Production
	Wang, Siheng ; Huang, Changping ; Zhang, Lifu ; Lin, Yi ; Cen, Yi ; Wu, Taixia
刊名	REMOTE SENSING
	2016
关键词	drought monitoring solar-induced chlorophyll fluorescence (SIF) drought indices gross primary production (GPP) Great Plains hyperspectral remote sensing GROWING-SEASON CARBON WATER-STRESS UNITED-STATES VEGETATION PHOTOSYNTHESIS EXCHANGE SPACE TEMPERATURE MECHANISMS INSIGHTS
DOI	10.3390/rs8020061
英文摘要	We examined the relationship between satellite measurements of solar-induced chlorophyll fluorescence (SIF) and several meteorological drought indices, including the multi-time-scale standard precipitation index (SPI) and the Palmer drought severity index (PDSI), to evaluate the potential of using SIF to monitor and assess drought. We found significant positive relationships between SIF and drought indices during the growing season (from June to September). SIF was found to be more sensitive to short-term SPIs (one or two months) and less sensitive to long-term SPI (three months) than were the normalized difference vegetation index (NDVI) or the normalized difference water index (NDWI). Significant correlations were found between SIF and PDSI during the growing season for the Great Plains. We found good consistency between SIF and flux-estimated gross primary production (GPP) for the years studied, and synchronous declines of SIF and GPP in an extreme drought year (2012). We used SIF to monitor and assess the drought that occurred in the Great Plains during the summer of 2012, and found that although a meteorological drought was experienced throughout the Great Plains from June to September, the western area experienced more agricultural drought than the eastern area. Meanwhile, SIF declined more significantly than NDVI during the peak growing season. Yet for senescence, during which time the reduction of NDVI still went on, the reduction of SIF was eased. Our work provides an alternative to traditional reflectance-based vegetation or drought indices for monitoring and assessing agricultural drought.; U.S. Department of Energy [DE-AC02-05CH1123]; National Natural Science Foundation of China [41501394]; Open Fund of State Key Laboratory of Remote Sensing Science [Y4Y00100KZ]; Chinese Carbon Monitoring Satellite Key Plan for Terrestrial Ecosystem [Y5H0630034]; Direct Youth Foundation of the Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences [Y5SJ2000CX]; China Postdoctoral Science Foundation [2014M550871]; SCI(E); EI; ARTICLE; wangsh@radi.ac.cn; huangcp@radi.ac.cn; zhanglf@radi.ac.cn; yi.lin@pku.edu.cn; cenyi@radi.ac.cn; wutx@radi.ac.cn; 2; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437866]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Wang, Siheng,Huang, Changping,Zhang, Lifu,et al. Monitoring and Assessing the 2012 Drought in the Great Plains: Analyzing Satellite-Retrieved Solar-Induced Chlorophyll Fluorescence, Drought Indices, and Gross Primary Production[J]. REMOTE SENSING,2016.
APA	Wang, Siheng,Huang, Changping,Zhang, Lifu,Lin, Yi,Cen, Yi,&Wu, Taixia.(2016).Monitoring and Assessing the 2012 Drought in the Great Plains: Analyzing Satellite-Retrieved Solar-Induced Chlorophyll Fluorescence, Drought Indices, and Gross Primary Production.REMOTE SENSING.
MLA	Wang, Siheng,et al."Monitoring and Assessing the 2012 Drought in the Great Plains: Analyzing Satellite-Retrieved Solar-Induced Chlorophyll Fluorescence, Drought Indices, and Gross Primary Production".REMOTE SENSING (2016).