Monsoon Index

The difinition of WNPMI and IMI monsoons:

Time series of the two indices for Summer(JJAS), June, July, August and September of 1948-2006 are shown below. You may download the sets in ASCII.

Data in *.txt

index.imi.aug.txt

index.imi.jjas.txt

index.imi.july.txt

index.imi.june.txt

index.imi.sep.txt

index.wnpmi.aug.txt

index.wnpmi.jjas.txt

index.wnpmi.july.txt

index.wnpmi.june.txt

index.wnpmi.sep.txt

Reference:

Wang, B., R. Wu, K.-M. Lau, 2001: Interannual variability of Asian summer monsoon: Contrast between the Indian and western North Pacific-East Asian monsoons. J. Climate, 14, 4073-4090. Abstract.  Full paper.