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Download .csv files for the needed CoA or NAO from 1980 to 2016:
NOA Indices
CoA Indices -
to view timeseries interactively, download the .html files and view offline. (They cannot be viewed in Github due to size restrictions). Or you can click on figures and you will ber redirected to "plotly" website.
NAO-Monthly
NAO-10Days -
NetCDF files:
Wind Composites
Correaltion Maps -
R script will be available soon to create CoA from NCEP SLP for any given domain
Please note that the use of data is subject to authers' copyrights. To use please cite as:
Osman, M., Zaitchik, B., Badr, H., Hameed, S., 2020: “North Atlantic Centers of Action and Seasonal to Subseasonal Temperature Variability in Europe and the Eastern North America”. Int. J. Climatol, (Under Review)
Refer to Hameed and Piontkovski (2004) for the CoA calculations:
Hameed, S., and S. Piontkovski, 2004: "The dominant influence of the Icelandic Low on the position of the Gulf Stream northwall". Geophys. Res. Lett., 31, 1998–2001, https://doi.org/10.1029/2004GL019561
For more information and correaltions and SLP data files plesae visit my website: https://sites.google.com/view/mahmoudosman/home