wm: Annual Winter Maximum Wave Height
In pengyuwei94/evreg: Extreme value regression modelling

Annual Winter Maximum Wave Height in the North Sea from 1/10/1954 to 31/3/2010, that is, the winters from 56 water years.

wm

A dataframe contains 56 rows and 6 variables

Hs: A numeric vector of the largest storm maximum value (in metres) observed over a given winter, which is a measure of sea surface roughness in the northern North Sea.
waterYear: A numeric vector of the year in which this winter ends (a water year starts on 1st October)
meanNAO: A numeric vector of the mean value of the North Atlantic Oscillation (NAO), which includes climate indice, over a winter.
maxNAO: A numeric vector of the maximum value of the NAO index over a winter.
meanAO: A numeric vector of the mean value of the Arctic Oscillation (AO), which contains climate indice, over a winter.
maxAO: A numeric vector of the maximum value of the AO index over a winter.