MAKE A MEME View Large Image Winter-NAO-Index.png Description North Atlantic Oscillation NAO index Year is on the x-axis 1900 2005 and the standardised principal-component based winter NAO index on the y-axis The bars show each winter's mean NAO index where for ...
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Keywords: Winter-NAO-Index.png Description North Atlantic Oscillation NAO index Year is on the x-axis 1900 2005 and the standardised principal-component based winter NAO index on the y-axis The bars show each winter's mean NAO index where for instance winter 1900 means the period from December 1899 up to and including March 1900 The black line is the 5-year running mean of the same index values smoothed with a Gaussian filter Source graph drawn by Hanno using data published on the web by J W Hurrell Climate Analysis Section National Center for Atmospheric Research Boulder Colorado USA as Climate indices http //www cgd ucar edu/cas/jhurrell/indices html Licence released into the public domain by the originator Winter-NAO-Index svg North Atlantic Oscillation Climatological diagrams
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