The U.S. CLIVAR Drought Working Group Data
hosted at the NASA/GSFC Global Modeling and Assimilation Office (GMAO) FTP Site

Welcome

NASA NSIPP1 AGCM

    Idealized SST experiments

    The idealized SST experiments with the NASA NSIPP1 AGCM are performed by the Global Modeling Assimilation Office (GMAO) of NASA Goddard Space Flight Center (GSFC).

    Each of the idealized runs lasts 51 years except the control run (PnAn) which lasts 201 years. The first year serves as the spinup.

    The outputs of the idealized runs with the NASA NSIPP1 AGCM are listed at ftp://gmaoftp.gsfc.nasa.gov/pub/data/clivar_drought_wg/NSIPP1/. The .ctl files under ftp://gmaoftp.gsfc.nasa.gov/pub/data/clivar_drought_wg/NSIPP1/ctl_files describe the outputs of the runs.

    List of idealized runs with the NASA NSIPP1:

      Impacts of three leading SST patterns

        Indicator of experiment: explanation of SST anomaly forcing for the experiment
        PcAc: Cold_Pacific + Cold_Atlantic
        PcAn: Cold_Pacific (Cold_Pacific + Neutral_Atlantic)
        PcAw: Cold_Pacific + Warm_Atlantic
        PcAwLTc: Cold_Pacific + Warm_Atlantic + Cold_Trend
        PcAwLTw: Cold_Pacific + Warm_Atlantic + Warm_Trend
        PnAc: Cold_Atlantic (Neutral_Pacific + Cold_Atlantic)
        PnAn: Climatology/Control Run
        PnAnLTc: Cold_Trend (Neutral_Pacific + Neutral_Atlantic + Cold_Trend)
        PnAnLTw: Warm_Trend (Neutral_Pacific + Neutral_Atlantic + Warm_Trend)
        PnAw: Warm_Atlantic (Neutral_Pacific + Warm_Atlantic)
        PnTAc: Cold_Tropical_Atlantic (Neutral_Pacific + Cold_Tropical_Atlantic)
        PnTAw: Warm_Tropical_Atlantic (Neutral_Pacific + Warm_Tropical_Atlantic)
        PwAc: Warm_Pacific + Cold_Atlantic
        PwAcLTc: Warm_Pacific + Cold_Atlantic + Cold_Trend
        PwAcLTw: Warm_Pacific + Cold_Atlantic + Warm_Trend
        PwAn: Warm_Pacific (Warm_Pacific + Neutral_Atlantic)
        PwAw: Warm_Pacific + Warm_Atlantic
        TPcAn: Cold_Tropical_Pacific (Cold_Tropical_Pacific + Neutral_Atlantic)
        TPwAn: Warm_Tropical_Pacific (Warm_Tropical_Pacific + Neutral_Atlantic)
        Uw: Uniform Warming of 0.16K

      Fixed soil moiture experiments

        PcAn: Cold_Pacific (Cold_Pacific + Neutral_Atlantic)
        PcAw: Cold_Pacific + Warm_Atlantic
        PnAc: Cold_Atlantic (Neutral_Pacific + Cold_Atlantic)
        PnAn: Climatology/Control Run
        PnAw: Warm_Atlantic (Neutral_Pacific + Warm_Atlantic)
        PwAc: Warm_Pacific + Cold_Atlantic
        PwAn: Warm_Pacific (Warm_Pacific + Neutral_Atlantic)

      Impacts of ENSO and low frequency patterns in the Pacific

        HFc: Cold_ENSO
        HFcLFc: Cold_ENSO + Cold_LowFrequency_Pacific
        HFcLFw: Cold_ENSO + Warm_LowFrequency_Pacific
        HFw: Warm_ENSO
        HFwLFc: Warm_ENSO + Cold_LowFrequency_Pacific
        HFwLFw: Warm_ENSO + Warm_LowFrequency_Pacific
        LFc: Cold_LowFrequency_Pacific
        LFw: Warm_LowFrequency_Pacific

    AMIP experiments

    There are 14 AMIP runs (1902-2006) available.

    The data can be accessed using GrADS data server at http://nsipp.gsfc.nasa.gov:9090/dods/c20c/

    Model References

    Bacmeister J., P. J. Pegion, S. D. Schubert, and M. J. Suarez, 2000: An atlas of seasonal means simulated by the NSIPP 1 atmospheric GCM. Vol. 17. NASA Tech. Memo. 104606, Goddard Space Flight Center, Greenbelt, MD, 194 pp.

    Schubert, S.D. M.J. Suarez, P.J. Pegion, R. D. Koster, and J.T. Bacmeister, 2004: Causes of long-term drought in the U.S. Great Plains,. J. Climate, 17, 485-503.

    Point of Contact

    Dr. Siegfried Schubert
    Global Modeling Assimilation Office (GMAO)
    Code 610.1, NASA Goddard Space Flight Center
    Greenbelt, MD 20771
    Tel: 301-614-6145
    Email: siegfried.d.schubert@nasa.gov