[2] CAM3 configurations for LGM and TP topography

CAM3 run configurations  (available)

by Wang Yue (163wangyue@163.com)

(1) CAM3 experiment case name:  cam0ka  

General description: T42 Preindustrial

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = 1950
  • co2vmr = 2.80000e-4 (280 ppmv)
  • ch4vmr = 7.60000e-7 (760 ppbv)
  • n20vmr = 2.70000e-7 (270 ppbv)
  • dtime = 1200

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • SST = sst_pmip2_0k_CCSM_64x128_clim_c140903.nc

Initial Conditions: cami_0000-09-01_64x128_L26_c030918.nc

Model Years of Run: 50 (the last 30 Model years available);

 

(2) CAM3 experiment case name:  cam21k

General description: T42 Last Glacial Maximum 21kyr BP

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = -19050 (relative to 1950: 1950-21000)
  • co2vmr = 1.85000e-4 (185 ppmv)
  • ch4vmr = 3.50000e-7 (350 ppbv)
  • n20vmr = 2.00000e-7 (200 ppbv)

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • topography & ice sheet = ICE-5G(Peliter,2004)
  • coastline = ICE-5G(Peliter,2004) , corresponding to ~120 m lowering of sea level
  • SST = sst_pmip2_21k_CCSM_64x128_clim_c140903.nc

Initial Conditions: branch from b30.104w, year 400 (PI 1780 control, T42x1)

Model Years of Run: 100 (the last 100 Model years available);

 

(3) CAM3 experiment case name:  cam21kice

General description: T42 Preindustrial but with LGM Ice sheet and sst

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = 1950
  • co2vmr = 2.80000e-4 (280 ppmv)
  • ch4vmr = 7.60000e-7 (760 ppbv)
  • n20vmr = 2.70000e-7 (270 ppbv)

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • topography & ice sheet = ICE-5G(Peliter,2004)
  • coastline = ICE-5G(Peliter,2004) , corresponding to ~120 m lowering of sea level
  • SST = sst_pmip2_21k_CCSM_64x128_clim_c140903.nc

Initial Conditions: branch from b30.104w, year 400 (PI 1780 control, T42x1)

Model Years of Run: 50 (the last 30 Model years available);

 

(4) CAM3 experiment case name:  camsst

General description: T42 Preindustrial but with LGM SST

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = 1950
  • co2vmr = 2.80000e-4 (280 ppmv)
  • ch4vmr = 7.60000e-7 (760 ppbv)
  • n20vmr = 2.70000e-7 (270 ppbv)
  • dtime = 1200

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • topography & ice sheet & coastline = present day prescribed
  • SST = sst_pmip2_21k_CCSM_64x128_clim_c140903.nc

Initial Conditions: cami_0000-09-01_64x128_L26_c030918.nc

Model Years of Run: 50 (the last 30 Model years available);

 

(5) CAM3 experiment case name:  cam21ksst

General description: T42 Last Glacial Maximum 21kyr BP but with modern sst

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = -19050 (relative to 1950: 1950-21000)
  • co2vmr = 1.85000e-4 (185 ppmv)
  • ch4vmr = 3.50000e-7 (350 ppbv)
  • n20vmr = 2.00000e-7 (200 ppbv)

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • topography & ice sheet = ICE-5G(Peliter,2004)
  • coastline = ICE-5G(Peliter,2004) , corresponding to ~120 m lowering of sea level
  • SST = sst_pmip2_21ksst_CCSM_64x128_clim_c140903.nc

Initial Conditions: cam21ksst.cam2.i.0496-01-01-00000.nc

Model Years of Run: 100 (the last 100 Model years available);

 

(6) CAM3 experiment case name: cam21kjfmsst

General description: T42 Last Glacial Maximum 21kyr BP but with modern sst (only JFM)

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = -19050 (relative to 1950: 1950-21000)
  • co2vmr = 1.85000e-4 (185 ppmv)
  • ch4vmr = 3.50000e-7 (350 ppbv)
  • n20vmr = 2.00000e-7 (200 ppbv)

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • topography & ice sheet = ICE-5G(Peliter,2004)
  • coastline = ICE-5G(Peliter,2004) , corresponding to ~120 m lowering of sea level
  • SST = sst_pmip2_21kJFM-sst_CCSM_64x128_clim_c140903.nc

Initial Conditions: cam21kjfmsst.cam2.i.0496-01-01-00000.nc

Model Years of Run: 100 (the last 100 Model years available);

 

(7) CAM3 experiment case name:  camco2

General description: T42 Preindustrial but with LGM GHG

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = 1950
  • co2vmr = 1.85000e-4 (185 ppmv)
  • ch4vmr = 3.50000e-7 (350 ppbv)
  • n20vmr = 2.00000e-7 (200 ppbv)
  • dtime = 1200

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • SST = sst_pmip2_0k_CCSM_64x128_clim_c140903.nc

Initial Conditions: cami_0000-09-01_64x128_L26_c030918.nc

Model Years of Run: 50 (the last 30 model years available);

 

(8) CAM3 experiment case name:  camorbit

General description: T42 Preindustrial but with LGM orbit parameters

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = -19050 (relative to 1950: 1950-21000)
  • co2vmr = 2.80000e-4 (280 ppmv)
  • ch4vmr = 7.60000e-7 (760 ppbv)
  • n20vmr = 2.70000e-7 (270 ppbv)
  • dtime = 1200

Boundary Conditions

  • ozone = pcmdio3.r8.64x1_L60_clim_c970515.nc
  • sulfates = AerosolMass_V_1870_SO4_64x128_clim_c040224.nc
  • dust & sea salt = present day prescribed
  • SST = sst_pmip2_0k_CCSM_64x128_clim_c140903.nc

Initial Conditions: cami_0000-09-01_64x128_L26_c030918.nc

Model Years of Run: 50 (the last 30 model years available);

 

(9) CAM3 experiment case name:  camt85

General description: T85 (Res =128×256, dycore=eul) Preindustrial

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = 1950
  • co2vmr = 2.80000e-4 (280 ppmv)
  • ch4vmr = 7.60000e-7 (760 ppbv)
  • n20vmr = 2.70000e-7 (270 ppbv)
  • dtime = 600

Boundary Conditions

  • sulfates = AerosolMass_V_128x256_clim_c031022.nc
  • SST = sst_HadOIBl_bc_128x256_clim_c031031.nc

Initial Conditions: cami_0000-09-01_128x256_L26_c040422.nc

Model Years of Run: 60 (the last 40 model years available);

 

(10) CAM3 experiment case name:  camt85tp

General description: T85 (Res =128×256, dycore=eul) Preindustrial with TP above 700m all removed

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = 1950
  • co2vmr = 2.80000e-4 (280 ppmv)
  • ch4vmr = 7.60000e-7 (760 ppbv)
  • n20vmr = 2.70000e-7 (270 ppbv)
  • dtime = 600

Boundary Conditions

  • sulfates = AerosolMass_V_128x256_clim_c031022.nc
  • SST = sst_HadOIBl_bc_128x256_clim_c031031.nc

Initial Conditions: cami_0000-09-01_128x256_L26_TPall_c150330.nc

Model Years of Run: 60 (the last 40 model years available);

 

(11) CAM3 experiment case name:  camt85mio

General description: T85 (Res =128×256, dycore=eul) Preindustrial with Miocene TP (with northeastern edge of TP above 700m removed)

Forcings

  • scon = 1.36500e+6 (solar constant = 1365.0 W/m^2)
  • orb_year = 1950
  • co2vmr = 2.80000e-4 (280 ppmv)
  • ch4vmr = 7.60000e-7 (760 ppbv)
  • n20vmr = 2.70000e-7 (270 ppbv)
  • dtime = 600

Boundary Conditions

  • sulfates = AerosolMass_V_128x256_clim_c031022.nc
  • SST = sst_HadOIBl_bc_128x256_clim_c031031.nc

Initial Conditions: cami_0000-09-01_128x256_L26_Miocene-L_c150330.nc

Model Years of Run: 60 (the last 40 model years available);