Using MODIS satellite data to analyse the relationship between Chlorophyll A and aerosol optical depth in the Greenland Sea

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Title Using MODIS satellite data to analyse the relationship between Chlorophyll A and aerosol optical depth in the Greenland Sea
Author Bo, Qu; Lu, Hailang; Gabric, Albert Jerome; Daorong, Lin; Feng, Qian; Weihua, Zhao
Journal Name Chinese Journal of Polar Research
Year Published 2011
Place of publication China
Publisher Kexue Chubanshe
Abstract Arctic ecosystems and global climate are closely related. This paper studies the distributions and the Coupling relationship between Chlorophyll a (Chl a) and aerosol optical thickness (AOD) in Greenland Sea (10˚W—10˚E, 70˚N—85˚N) during 2003 – 2009 using satellite ocean colour data from MODIS Aqua. The regression analysis of EViews shows that Chl a and AOD are correlated with a time lag. Based on the lag of Chl a and AOD, co-integration inquiry finds that there is co-integration between them, which means that they will have a long-term equilibrium relationship. In general, Chl a starts from March, and gradually increases to a peak in July. The peak of AOD is usually in May, 11 weeks before Chl a. After shifting the time lag, the correlation between Chl a and AOD is 0.98 in the spring in 80˚N - 85˚N. Apart from the year of 2005, when Chl a and AOD had no time lag, the other years’ intervals increased about 6 weeks within the 7 years. The peaks of AOD shifted one and half months ahead, while Chl a also shifted about two months ahead. In northern part (75˚N - 85˚N), Chl a and AOD were much higher in the summer and autumn of 2009 than those in other years. The reason could be the much larger ice melting and higher AOD. The results indicate that the global warming has significant impact on the ecosystem in the Arctic Ocean.
Peer Reviewed Yes
Published Yes
Publisher URI http://d.wanfangdata.com.cn/Periodical_jdyj201101010.aspx
Volume 23
Issue Number 1
Page from 68
Page to 76
ISSN 1007-7073
Date Accessioned 2011-06-21
Date Available 2012-02-10T02:11:55Z
Language en_US
Research Centre Australian Rivers Institute
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Biological Oceanography
URI http://hdl.handle.net/10072/41920
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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