Table 2: Columns 2 and 3 give the mean values and standard deviations of COA indices related to Sahel precipitation, and columns 4, 5, and 6 are their mutual correlations. The Azores High and South Asia data are for 1948–1998, and the SOI values are for 1951–1998.

COAMeanStd DevAZH longitudeSAL pressureSOI

AZH longitude−
SAL pressure1005.1 mb0.92 mb0.201.0−0.42