Correlation between aerosol optical depth and ocean primary productivity based on MODIS and CALIOP data
Spatial and temporal distributions of aerosol optical depth (AOD) in Huabei area of China (32°N～42°N,112°E～121°E) and the ocean primary productivity in Northwestern Pacific Ocean (40°N～50°N,140°E～180°E) were analyzed using satellite remote sensing data from MODIS (2003～2014) and CALIOP (2009～2014).And the correlations between these two parameters were further studied.The results showed that:the AOD in Huabei area varied seasonally and peaked in June and July.The ocean primary productivity in Northwestern Pacific Ocean also showed seasonal periodicity and was highest in August and September.An aerosol transportation channel from Huabei area to the Northwestern Pacific Ocean was revealed in May and June,along with the high-altitude wind fields.Indicated by Lead-lag correlation analysis of long time-series data,relatively higher correlation coefficient (ranging from 0.7 to 0.8,tested by a =0.05) was found between AOD in Huabei area and ocean primary productivity in Northwestern Pacific Ocean which lagged behind the former for 1 to 2 months.Nevertheless,areas with shorter lag time and lower correlation index might be affected by ocean current transportation.
NETL
NSTL
万方数据
维普
