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Idealized SST experiments

The idealized SST experiments using the NCAR CAM3.5 are performed by the CCSM Climate Variability Working Group at NCAR.

The idealized runs are 51 years long, and data of the last 50 years are saved

The data are available at ftp://gmaoftp.gsfc.nasa.gov/pub/data/clivar_drought_wg/CAM3.5/ as well as http://dsrs.atmos.umd.edu/DATA/CAM3.5_DWG/

List of idealized runs with the NCAR CAM3.5:

Impacts of three leading SST patterns

Indicator of experiment: explanation of SST anomaly forcing for the experiment

LTw: Warm_Trend (Neutral_Pacific + Neutral_Atlantic + Warm_Trend)
PcAn: Cold_Pacific (Cold_Pacific + Neutral_Atlantic)
PcAw: Cold_Pacific + Warm_Atlantic
PnAc: Cold_Atlantic (Neutral_Pacific + Cold_Atlantic)
PnAn: Climatology/Control Run (Neutral_Pacific + Neutral_Atlantic)
PnAw: Warm_Atlantic (Neutral_Pacific + Warm_Atlantic)
PnTAw: Warm_Tropical_Atlantic (Neutral_Pacific + Warm_Tropical_Atlantic)
PwAc: Warm_Pacific + Cold_Atlantic
PwAn: Warm_Pacific (Warm_Pacific + Neutral_Atlantic)
PwAw: Warm_Pacific + Warm_Atlantic
TPcAn: Cold_Tropical_Pacific (Cold_Tropical_Pacific + Neutral_Atlantic)

Fixed soil moiture experiments

No experiments have been performed.

Impacts of low frequency and ENSO patterns in the Pacific

No experiments have been performed.

AMIP experiments

There is one AMIP run (1871-2006) available. The data are available at ftp://gmaoftp.gsfc.nasa.gov/pub/data/clivar_drought_wg/CAM3.5/AMIP01/ as well as http://dsrs.atmos.umd.edu/DATA/CAM3.5_DWG/AMIP/

Model References

The 3.5 version of CAM is not a release, so there aren't papers documenting its content or performance as there were for CCSM3. However, there are some papers documenting major changes:

A paper documenting the Neale/Richter changes in the deep convection parameterization:

Neale, R.B., J.H. Richter, and M. Jochum, 2008: The Impact of Convection on ENSO: From a Delayed Oscillator to a Series of Events. J. Climate, 21,5904-5924.

Papers on the Land-surface model CLM3.5:

Oleson, K. W., G.-Y. Niu, Z.-L. Yang, D.M. Lawrence, P. E. Thornton, P. J. Lawrence, R. Stockli, R. E. Dickinson, G. B. Bonan, S. Levis, A. Dai and T. Qian, 2008: Improvements to the Community Land Model and their impact on the hydrological cycle. J. Geophys. Res., 113, G01021, doi:10.1029/2007JG000563.

Stockli, R., D. M. Lawrence, G.-Y. Niu, K. W. Oleson, P. E. Thornton, Z.-L. Yang, G. B. Bonan, A. S. Denning, and S. W. Running, 2008: Use of FLUXNET in the Community Land Model development, J. Geophys. Res., 113, G01025, doi:10.1029/2007JG000562.

Point of Contact

Dr. Alfredo Ruiz-Barradas
Department of Atmospheric and Oceanic Science
University of Maryland
College Park, MD 20742-2425, USA
Tel: 1-301-405-0160
Fax: 1-301-314-9482
Email: