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The AMWG variability package

About the AMWG variability package

The AMWG variability diagnostic package uses high frequency output, i.e. monthly, daily, 6-hourly and 3-hourly, to diagnose climate variabilities of CAM simulations which are compared with various reanalysis products. The package includes the diagnosis of seasonal cycle, intraseasonal variability, Madden-Julian Oscillation (MJO), El Nino - Southern Oscillation (ENSO), and diurnal cycle. The package is consisted of four segments using monthly, daily, 6-hourly, and 3-hourly output, respectively. Each segment can be used separately.

Examples of the webpages created by the variability package

An example of the webpages created by the variability package can be find here

How to download the code

Users can get the code and datasets from the release code repository. A short registration is required to access the repository. After registering, you will receive an email containing a user name and password that is necessary to gain access to the repository. Once approval is granted for access to the release repository, users may freely download the diagnostic packages. For more details on utilizing the release repository, please see the section on Downloading CESM in the User's Guide.

To export the diagnostic package from the repository, use:
svn export https://svn-ccsm-release.cgd.ucar.edu/model_diagnostics/atm/cam/amwg_variability/amwg_variab_20130807
(Sep 23, 2013) This link will become available in the next few days

To run AMWG variability package, you must have NCL, and the netcdf operators (NCO) already installed on their computer system. You will also need the utility "convert" to convert the postscript plots to an image format suitable for the webpages (png,gif,jpg). Convert is part of the ImageMagick package.