Validation of global land surface satellite (GLASS) downward shortwave radiation product in the rugged surface

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2013 > Vol10 No.5

	Validation of global land surface satellite (GLASS) downward shortwave radiation product in the rugged surface
	Jin Hua-an1 ; Li Ai-nong1 ; Bian Jin-hu1 ; Zhang Zheng-jian1 ; Huang Cheng-quan 2; Li Meng-xue 2
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2013-10-01
卷号	10 期号:5 页码:812-823
关键词	Downward shortwave radiation Validation Complex terrain
ISSN号	1672-6316
通讯作者	LI Ai-nong（李爱农）
英文摘要	The downward shortwave radiation (DSR) is an essential parameter of land surface radiation budget and many land surface models that characterize hydrological, ecological and biogeochemical processes. The new Global LAnd Surface Satellite (GLASS) DSR datasets have been generated recently using multiple satellite data in China. This study investigates the performances of direct comparison approach, which is mostly used for validation of surface insolation retrieved from satellite data over the plain area, and indirect comparison approach, which needs a fine resolution map of DSR as reference, for validation of GLASS DSR product in time-steps of 1 and 3 hours over three Chinese Ecosystem Research Network sites located in the rugged surface. Results suggest that it probably has a large uncertainty to assess GLASS DSR product using the direct comparison method between GLASS surface insolation and field measurements over complex terrain, especially at Mt. Gongga 3,000 m station with root mean square error of 279.04 and 229.06 W/m(2) in time-steps of 1 and 3 hours, respectively. Further improvement for validation of GLASS DSR product in the rugged surface is suggested by generation of a fine resolution map of surface insolation and comparison of the aggregated fine resolution map with GLASS product in the rugged surface. The validation experience demonstrates that the GLASS DSR algorithm is satisfactory with determination coefficient of 0.83 and root mean square error of 81.91W/m(2) over three Chinese Ecosystem Research Network sites, although GLASS product overestimates DSR compared to the aggregated fine resolution map of surface insolation.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	IMAGING SPECTRORADIOMETER MODIS ; SOLAR-RADIATION ; REFLECTANCE ; MODEL ; AEROSOL ; TERRA
收录类别	SCI
语种	英语
WOS记录号	WOS:000325070700011
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/6339]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2013_Vol10 No.5 成都山地灾害与环境研究所_数字山地与遥感应用中心
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA
推荐引用方式 GB/T 7714	Jin Hua-an,Li Ai-nong,Bian Jin-hu,et al. Validation of global land surface satellite (GLASS) downward shortwave radiation product in the rugged surface[J]. JOURNAL OF MOUNTAIN SCIENCE,2013,10(5):812-823.
APA	Jin Hua-an,Li Ai-nong,Bian Jin-hu,Zhang Zheng-jian,Huang Cheng-quan,&Li Meng-xue.(2013).Validation of global land surface satellite (GLASS) downward shortwave radiation product in the rugged surface.JOURNAL OF MOUNTAIN SCIENCE,10(5),812-823.
MLA	Jin Hua-an,et al."Validation of global land surface satellite (GLASS) downward shortwave radiation product in the rugged surface".JOURNAL OF MOUNTAIN SCIENCE 10.5(2013):812-823.