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