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J. CLIMATE ANALYSIS

Disclaimer: These model results are from test simulations of the community climate system model and should not be cited or distributed.

Model Descriptions
  • CCM3/CLM2_T42: CCM3 and earliest version of CLM, i.e., Bonan et al. 2002 at T42
  • CCSM2.0_T42: model released May, 2002 (CLM2.0) at T42
  • CCSM3.0_T42: model released Jun, 2004 (CLM3.0) at T42
  • CAM3.0/CLM3_T85: model released Jun, 2004 (CLM3.0) at T85
  • CCSM3.0_T85: model released Jun, 2004 (CLM3.0) at T42

    • CCSM2/CCSM3 and CAM3/CLM3 Compared to Observations

    Diagnostics Test Case Model Yrs Comparison Model Model Yrs Trend Yrs Created
    LND b20.007 (CCSM2.0_T42) 601-650 Observations - 601-650 03/19/04
    ATM b20.007 (CCSM2.0_T42) 601-650 Observations - 601-650 04/23/04
    LND b30.004 (CCSM3.0_T42) 601-650 Observations - 601-650 03/19/04
    ATM b30.004 (CCSM3.0_T42) 601-650 Observations - 601-650 04/05/04
    LND b30.009 (CCSM3.0_T85) 401-450 Observations - 401-450 03/30/04
    ATM b30.009 (CCSM3.0_T85) 401-450 Observations - 401-450 04/02/04
    LND eul128x256_d50 (CAM3.0/CLM3.0_T85) 11-50 Observations - 11-50 03/31/04
    ATM eul128x256_d50 (CAM3.0/CLM3.0_T85) 11-50 Observations - 11-50 04/30/04

    Changes from previous model version (CCSM3.0_T85-CCSM2.0_T42)

    Diagnostics Test Case Model Yrs Comparison Model Model Yrs Trend Yrs Created
    LND b30.009 (CCSM3.0_T85) 401-450 b20.007 (CCSM2.0_T42) 601-650 - 06/23/04
    ATM b30.009 (CCSM3.0_T85) 401-450 b20.007 (CCSM2.0_T42) 601-650 - 06/23/04

    Effects of Resolution on CCSM3 (T85-T42)

    Diagnostics Test Case Model Yrs Comparison Model Model Yrs Trend Yrs Created
    LND b30.009 (CCSM3.0_T85) 401-450 b30.004 (CCSM3.0_T42) 601-650 - 03/31/04
    Set 3 2models+obs b30.009 (CCSM3.0_T85) 401-450 b30.004 (CCSM3.0_T42) 601-650 - 10/07/04
    Set 3 Continental analysis b30.009 (CCSM3.0_T85) 401-450 b30.004 (CCSM3.0_T42) 601-650 - 10/28/04
    ATM b30.009 (CCSM3.0_T85) 401-450 b30.004 (CCSM3.0_T42) 601-650 - 10/20/04

    Regional Comparison of All Models
  • CCM3/CLM2_T42, CCSM2.0_T42, CCSM3.0_T42, CAM3/CLM3_T85, CCSM3.0_T85, Observations
  • Temperature, precipitation, runoff, snow depth, radiative fluxes, turbulent fluxes, cloud amount

    • Diagnostics Created
    Regional Comparison 04/13/04

    Seasonal contour plots
    Model Variable Created
    CCSM3.0_T85 compared to obs Temperature Precipitation Runoff Snow Depth 05/21/04
    CCSM2.0_T42 compared to obs Temperature Precipitation Runoff Snow Depth 05/27/04
    CCM3/CLM2_T42 compared to obs Temperature Precipitation Runoff Not Available 06/02/04
    CCSM3.0_T85 compared to CCSM2.0_T42 Temperature Precipitation Runoff Snow Depth 07/12/04

    A quick and dirty comparison of observed temperature and precipitation datasets (How quick and dirty?)

    Seasonal contour plots
    Model Temperature Precipitation Created
    ATMDIAG Willmott/Matsuura (1950-1999) compared to LNDDIAG Willmott/Matsuura (1950-1999) plot plot 09/17/04
    Legates/Willmott (1920-1980) compared to LNDDIAG Willmott/Matsuura (1950-1999) plot plot 09/17/04
    IPCC/CRU (1961-1990) compared to LNDDIAG Willmott/Matsuura (1950-1999) plot - 09/17/04
    TRMM(3B-43) (JAN1998-MAR2004) compared to LNDDIAG Willmott/Matsuura (1950-1999) - plot 09/17/04
    CMAP (1979-1998) compared to LNDDIAG Willmott/Matsuura (1950-1999) - plot 09/17/04
    PREC/L (1948-2001) compared to LNDDIAG Willmott/Matsuura (1950-1999) - plot 09/17/04
    GPCP (1979-FEB2004) compared to LNDDIAG Willmott/Matsuura (1950-1999) - plot 09/17/04
    GXGXS (1979-2000) compared to LNDDIAG Willmott/Matsuura (1950-1999) - plot 09/23/04
    Regional plots
    Diagnostics Created
    Regional Comparison 09/20/04
    Zonal plots
    Model Temperature Precipitation Created
    All observations plot plot 10/04/04

    Misc plots
    Model Variable Created
    CCSM3.0_T42 compared to obs Amazon river flow 07/12/04

    Is the CCSM3.0_T85 land surface climate for years 601-650 different from 401-450 climate?

    Diagnostics Test Case Model Yrs Comparison Model Model Yrs Trend Yrs Created
    LND b30.009 (CCSM3.0_T85) 601-650 b30.009 (CCSM3.0_T85) 401-450 - 11/08/04

    Test runoff from coupler files for b30.004
    Model Diagnostics Created
    CCSM3.0_T42 coupler runoff compared to CCSM3.0_T42 lnd runoff b30.004 (CCSM3.0_T42) 10/19/04

    send questions and comments to
    Keith Oleson (oleson@ucar.edu)