The correlation and regression analysis on aerosol optical depth, ice cover and cloud cover in Greenland Sea

• Published in: 2014 8th International Conference on Systems Biology (ISB)
• Main Authors: Qu, B, Gabric, AJ, Gu, P, Zeng, M
• Format: Conference Object
• Language: English
• Published: IEEE 2014
• Subjects: Biological oceanography; Arctic; Greenland; Greenland Sea; Sea ice
• Online Access: http://hdl.handle.net/10072/78941; https://doi.org/10.1109/ISB.2014.6990753

Research es on Arctic aeroso l, ice cover and cloud cover ha ve received great attention and it related to the regional even global climate changing. We here study the distributions and the coupling relationships of AOD, cloud cover (CLD) and ice cover (ICE) in the Greenland Sea (20 °W -10°E, 70°N -80 °N) during 2003 -2012. Enhanced statistics methods, such as lag regression method and co -integration analysis method are used for correlation and regression analysis. According to the 10 years satellite data, AOD was high in spring, and low in su mmer. Generally , AOD wa s higher down south and lower up north. CLD and AOD mainly had negative correlation s and ICE and AOD had positive correlation s. According to the lag regression analysis by statistical software EV iews, both t he peaks of CLD and peak s of ICE w ere all 1 month earlier than the peak of AOD . The co -integration test suggested that both ICE( -1) and CLD( -1) and AOD were all zero -order integration, and there w as no unit root in the residual, so there all had long -run equilibrium relationship s. ICE and AOD we re stationary series, and the residual ha d no unit root, they we re good coupling. The melting of sea ice and decreasing of cloud cover would all result in the increas ing of the AOD content. However, t he relationship between AOD and CLD wa s weaker than the relationship between AOD and ICE, indicating that the aerosol in Arctic mostly came from the sea rather than from the air . Full Text