Systematical underestimation of MODIS global chlorophyll-a concentration;estimation algorithm associating with scale effect

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	Systematical underestimation of MODIS global chlorophyll-a concentration;estimation algorithm associating with scale effect
	Chen, Jun 4; Quan, Wenting 1; Sheng, Hui 2
刊名	INDIAN JOURNAL OF GEO-MARINE SCIENCES
	2013
卷号	42 期号:7 页码:833-838
关键词	MODIS OC3M algorithm global oceans Chlorophyll-a concentration Scale effect
ISSN号	0379-5136;EI 0975-1033
英文摘要	A framework for characterizing the scale effects while using ocean chlorophyll 4 algorithm of MODIS (OC3M) to estimate chlorophyll-a concentration (chla) from Moderate Resolution Imaging Spectroradiometer (MODIS) imageries is presented. An eight neighborhood algorithm is used to estimate the distribution variance of chla concentration, D(R-3M), from MODIS imageries. Based on the analysis for global data series of monthly composites of MODIS Aqua satellite data from 2008 to 2010 at 4 km resolution, the chla concentration estimated by OC3M algorithm would be smaller than in situ measurements in theory. This is a even if the atmospheric effects has been accurately removed owing to the scale effects. Relative scale error has characterizes associating with spatial and time dependents. Largely, scale error mostly distributed in the coastal waters, which is closely related with human society. In this study, D(R-3M) is estimated very coarsely, which would lead to the underestimation of scale errors of global chla data. As a result, how to accurately estimate D(R-3M) may be possible areas for scale effect study in future.
学科主题	其它
语种	英语
出版者	NATL INST SCIENCE COMMUNICATION-NISCAIR
WOS记录号	WOS:000330928000002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39938]
专题	中国地质调查局青岛海洋地质研究所
作者单位	1.Qingdao Inst Marine Geol, Key Lab Marine Hydrocarbon Resources & Geol, Qingdao 266071, Peoples R China. 2.Shanxi Remote Sensing Informat Ctr Agr, Xian 710000, Peoples R China. 3.China Univ Petr, Coll Earth Resources & Informat, Qingdao 266200, Peoples R China. 4.中国地质调查局青岛海洋地质研究所
推荐引用方式 GB/T 7714	Chen, Jun,Quan, Wenting,Sheng, Hui. Systematical underestimation of MODIS global chlorophyll-a concentration;estimation algorithm associating with scale effect[J]. INDIAN JOURNAL OF GEO-MARINE SCIENCES,2013,42(7):833-838.
APA	Chen, Jun,Quan, Wenting,&Sheng, Hui.(2013).Systematical underestimation of MODIS global chlorophyll-a concentration;estimation algorithm associating with scale effect.INDIAN JOURNAL OF GEO-MARINE SCIENCES,42(7),833-838.
MLA	Chen, Jun,et al."Systematical underestimation of MODIS global chlorophyll-a concentration;estimation algorithm associating with scale effect".INDIAN JOURNAL OF GEO-MARINE SCIENCES 42.7(2013):833-838.