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http://dx.doi.org/10.7780/kjrs.2010.26.4.421

Spatial and Temporal Variations of Satellite-derived 10-year Surface Particulate Organic Carbon (POC) in the East China Sea  

Son, Young-Baek (Korea Ocean Satellite Center, KORDI)
Lee, Tae-Hee (South Sea Environment Research Department, KORDI)
Choi, Dong-Lim (South Sea Environment Research Department, KORDI)
Jang, Sung-Tae (Climate Change & Coastal Disaster Research Department, KORDI)
Kim, Cheol-Ho (Climate Change & Coastal Disaster Research Department, KORDI)
Ahn, Yu-Hwan (Korea Ocean Satellite Center, KORDI)
Ryu, Joo-Hyung (Korea Ocean Satellite Center, KORDI)
Kim, Moon-Koo (South Sea Environment Research Department, KORDI)
Jung, Seom-Kyu (Naval Technology Research Group, KORDI)
Ishizaka, Joji (Hydrospheric Atmospheric Research Center (HyARC), Nagoya University)
Publication Information
Korean Journal of Remote Sensing / v.26, no.4, 2010 , pp. 421-437 More about this Journal
Abstract
Surface particulate organic carbon (POC) concentration estimated from Maximum Normalized Difference Carbon Index (MNDCI) algorithm using SeaWiFS data is used to determine spatial and temporal variations of the Changjiang Diluted Water (CDW) in the East China Sea. 10-year monthly POC concentrations (1997-2007) show clearly seasonal variations. Inter-annual variation of POC in whole and three different areas separated by standard deviation is not linearly correlated with the Changjiang River discharge that has decreased after 1998. To determine more detailed spatial and temporal POC variations, we used empirical orthogonal function (EOF) analysis in summer (Jun.-Sep.) from 2000 to 2007. First mode is spatially and temporally correlated with the area influenced by the Changjiang River discharge. Second mode is temporally less sensitive with the Changjiang River discharge but spatially correlated with north-south patterns. Relatively higher POC variations during 2000 and 2003 were shown in the southern East China Sea. These patterns during 2004 and 2007 moved to the northern East China Sea. This phenomenon is better related to spatial variations of wind-direction than the amount of Changjiang River discharge, which is verified from in-situ measurement.
Keywords
Particulate organic carbon (POC); SeaWiFS; QuickSCAT; Changjiang Diluted Water (CDW); Maximum Normalized Difference Carbon Index (MNDCI); the East China Sea;
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Times Cited By KSCI : 4  (Citation Analysis)
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