The frequency of winter cyclones in the North Atlantic is determined for 1957-2002 in the ERA-40 European Center for Medium-Range Weather Forecasts (ECMWF) reanalysis data set. The cyclone frequency shows distinct maxima for the intensity and the variability between southeastern Greenland and Iceland. The numbers of cyclones near Iceland (50 - 60N. 30 - 10W) and their intensity show a... https://foldlyers.shop/product-category/tenor-ukulele/