Introduction | Overview | Atmosphere | Surface ocean | Subsurface ocean | Sea Ice
AO | NAO | PNA | PDO | SAM | SOI | AMO
shorter series | longer series

Pacific-North American Pattern (PNA)

The PNA index indicates the predominance of a characteristic pattern of atmospheric circulation and teleconnection over the North Pacific and North America. view pattern »

Data source and calculation

The index is calculated by NOAA/CPC (last update 15-JUL-2016). view details of calculation »

The standard deviation of the index over the period 1948-2005 is indicated on the plot. get series (netcdf 12kB) »