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C-LAMP Descriptive Experimental Protocol

Created April 2006
Last Modified June 2008

1. Experiment 1: Uncoupled land carbon model simulations

1.1. Experiment 1.1: Spin up run
1.1.1. Initialization: Arbitrary
1.1.2. Time Period: Run as long as necessary to achieve equilibrium
1.1.3. Meteorlogy: NCEP/NCAR Reanalysis, cycling years 1948-1972
1.1.4. Land [CO2]: Global constant pre-industrial value of 283.1878 ppmv
1.1.5. N Deposition: Pre-industrial climatology
1.1.6. Land Cover: Pre-industrial static land cover of 1798
1.2. Experiment 1.2: Control run
1.2.1. Initialization: From the end of Experiment 1.1
1.2.2. Time Period: 1798-2004
1.2.3. Meteorology: NCEP/NCAR Reanalysis, cycling years 1948-1972
1.2.4. Land [CO2]: Global constant pre-industrial value of 283.1878 ppmv
1.2.5. N Deposition: Pre-industrial climatology
1.2.6. Land Cover: Pre-industrial static land cover of 1798
1.3. Experiment 1.3: Climate varying run
1.3.1. Initialization: From the beginning of year 1948 of Experiment 1.2
1.3.2. Time Period: 1948-2004
1.3.3. Meteorology: NCEP/NCAR Reanalysis, full time series for 1948-2004
1.3.4. Land [CO2]: Global constant pre-industrial value of 283.1878 ppmv
1.3.5. N Deposition: Pre-industrial climatology
1.3.6. Land Cover: Pre-industrial static land cover of 1798
1.4. Experiment 1.4: Climate, CO2, and N deposition varying run
1.4.1. Initialization: From the end of Experiment 1.1
1.4.2. Time Period: 1798-2004
1.4.3. Meteorology: NCEP/NCAR Reanalysis, cycling years 1948-1972 for 1798-1947 and full time series for 1948-2004
1.4.4. Land [CO2]: Prescribed reconstructed global CO2 time series
1.4.5. N Deposition: Pre-industrial climatology for 1798-1889 and time series for 1890-2004
1.4.6. Land Cover: Pre-industrial static land cover of 1798
1.5. Experiment 1.5: Climate, CO2, N deposition, and land cover varying run
1.5.1. Initialization: From the end of Experiment 1.1
1.5.2. Time Period: 1798-2004
1.5.3. Meteorology: NCEP/NCAR Reanalysis, cycling years 1948-1972 for 1798-1947 and full time series for 1948-2004
1.5.4. Land [CO2]: Prescribed reconstructed global CO2 time series
1.5.5. N Deposition: Pre-industrial climatology for 1798-1889 and time series for 1890-2004
1.5.6. Land Cover: Prescribed land cover time series for 1798-2004
1.6. Experiment 1.6: Free Air CO2 Enrichment (FACE) control run
1.6.1. Initialization: From the beginning of year 1997 of Experiment 1.4
1.6.2. Time Period: 1997-2100
1.6.3. Meteorology: NCEP/NCAR Reanalysis, cycling years 1980-2004 (synchronously for years 1997-2004)
1.6.4. Land [CO2]: Prescribed reconstructed global CO2 time series through 2005 and constant 2005 value through 2100
1.6.5. N Deposition: Time series through 2005 and constant 2005 value through 2100
1.6.6. Land Cover: Pre-industrial static land cover of 1798
1.7. Experiment 1.7: Free Air CO2 Enrichment (FACE) transient run
1.7.1. Initialization: From the beginning of year 1997 of Experiment 1.4
1.7.2. Time Period: 1997-2100
1.7.3. Meteorology: NCEP/NCAR Reanalysis, cycling years 1980-2004 (synchronously for years 1997-2004)
1.7.4. Land [CO2]: Prescribed reconstructed global CO2 time series through 2005 and constant value of 550.0 ppmv through 2100
1.7.5. N Deposition: Time series through 2005 and constant 2005 value through 2100
1.7.6. Land Cover: Pre-industrial static land cover of 1798

2. Experiment 2: Partially coupled atmosphere-land carbon model simulations

2.1. Experiment 2.1: Spin up run
2.1.1. Initialization: From the end of Experiment 1.1
2.1.2. Time Period: Run as long as necessary to achieve equilibrium
2.1.3. Sea Surface Temperatures and Sea Ice Cover: Hadley Centre, cycling years 1875-1899
2.1.4. Radiative [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.1.5. Land [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.1.6. Land CO2 Fluxes: Off
2.1.7. Fossil Fuel Emissions: None
2.1.8. Ocean CO2 Fluxes: None
2.1.9. N Deposition: Pre-industrial climatology
2.1.10. Land Cover: Pre-industrial static land cover of 1798
2.2. Experiment 2.2: Control run
2.2.1. Initialization: From the end of Experiment 2.1
2.2.2. Time Period: 1800-2004
2.2.3. Sea Surface Temperatures and Sea Ice Cover: Hadley Centre, cycling years 1875-1899
2.2.4. Radiative [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.2.5. Land [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.2.6. Land CO2 Fluxes: On
2.2.7. Fossil Fuel Emissions: None
2.2.8. Ocean CO2 Fluxes: None
2.2.9. N Deposition: Pre-industrial climatology
2.2.10. Land Cover: Pre-industrial static land cover of 1798
2.3. Experiment 2.3: Climate varying run
2.3.1. Initialization: From the end of Experiment 2.1
2.3.2. Time Period: 1800-2004
2.3.3. Sea Surface Temperatures and Sea Ice Cover: Hadley Centre, cycling years 1875-1899 for 1800-1874 and time series for 1875-2004
2.3.4. Radiative [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.3.5. Land [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.3.6. Land CO2 Fluxes: On
2.3.7. Fossil Fuel Emissions: None
2.3.8. Ocean CO2 Fluxes: None
2.3.9. N Deposition: Pre-industrial climatology
2.3.10. Land Cover: Pre-industrial static land cover of 1798
2.4. Experiment 2.4: Climate, CO2, and N deposition varying run
2.4.1. Initialization: From the end of Experiment 2.1
2.4.2. Time Period: 1800-2004
2.4.3. Sea Surface Temperatures and Sea Ice Cover: Hadley Centre, cycling years 1875-1899 for 1800-1874 and time series for 1875-2004
2.4.4. Radiative [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.4.5. Land [CO2]: Prescribed reconstructed global CO2 time series
2.4.6. Land CO2 Fluxes: On
2.4.7. Fossil Fuel Emissions: Prescribed annual SRES A2 emissions
2.4.8. Ocean CO2 Fluxes: Prescribed time series
2.4.9. N Deposition: Pre-industrial climatology for 1798-1889 and time series for 1890-2004
2.4.10. Land Cover: Pre-industrial static land cover of 1798
2.5. Experiment 2.5: Climate, CO2, N deposition, and land cover varying run
2.5.1. Initialization: From the end of Experiment 2.1
2.5.2. Time Period: 1800-2004
2.5.3. Sea Surface Temperatures and Sea Ice Cover: Hadley Centre, cycling years 1875-1899 for 1800-1874 and time series for 1875-2004
2.5.4. Radiative [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.5.5. Land [CO2]: Prescribed reconstructed global CO2 time series
2.5.6. Land CO2 Fluxes: On
2.5.7. Fossil Fuel Emissions: Prescribed annual SRES A2 emissions
2.5.8. Ocean CO2 Fluxes: Prescribed time series
2.5.9. N Deposition: Pre-industrial climatology for 1798-1889 and time series for 1890-2004
2.5.10. Land Cover: Prescribed land cover time series for 1798-2004
2.6. Experiment 2.6: Climate, CO2, N deposition varying run with seasonalized fossil fuel emissions
2.6.1. Initialization: From the end of Experiment 2.1
2.6.2. Time Period: 1800-2004
2.6.3. Sea Surface Temperatures and Sea Ice Cover: Hadley Centre, cycling years 1875-1899 for 1800-1874 and time series for 1875-2004
2.6.4. Radiative [CO2]: Global constant pre-industrial value of 283.1878 ppmv
2.6.5. Land [CO2]: Prescribed reconstructed global CO2 time series
2.6.6. Land CO2 Fluxes: On
2.6.7. Fossil Fuel Emissions: Prescribed seasonalized monthly SRES A2 emissions
2.6.8. Ocean CO2 Fluxes: Prescribed time series
2.6.9. N Deposition: Pre-industrial climatology for 1798-1889 and time series for 1890-2004
2.6.10. Land Cover: Prescribed land cover time series for 1798-2004

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Contact: Forrest Hoffman (forrest@climatemodeling.org)