Multivariate ENSO Index (MEI) also referred to as: MEI
Data Compilation - NOAA - 08/29/1997 - 10/23/2006
The MEI is a multivariate index that incorporates sea level pressure, surface zonal and meridional wind components, sea surface temperature, surface air temperature, and cloudiness (Wolter and Timlin, 1998). The MEI index is calculated for the tropical Pacific (i.e., between 10[degrees]N and 10[degrees]S, from Asia to the Americas).