![(please configure the [header_logo] section in trac.ini)](/projects/climate/chrome/common/trac_banner.png)
CESM Biogeochemistry model variables used for microbes
http://www.cesm.ucar.edu/CMIP5/forcing_information/
ESG Collections
We use the experiments where the BGC model is on but CO2 levels in atmosphere are prescribed.
Time
pre-industrial: 500 year control run with constant 1850 forcing. 6,000 months of data for each variable.
historial: 156 years from 1850 to 2005. 1,872 months. Forced with observed CO2 and other forcings.
rcp45: 95 years from 2006 to 2100 with increasing CO2. 1140 months.
rcp85: 95 years from 2006 to 2100 with increasing CO2. 1140 months.
Data sizes
Most variables are 2D and all time values are in one file.
3D variables are split up into files that are less than 2GB in size.
e.g. mrlsl: soil moisture at each of 15 depth levels
total data size:
188GB
- historical: 36GB
- preindustrial: 108GB
- rcp45: 22GB
- rcp85: 22GB
Ocean Variables
Translate ocean BGC variables from old ScidAC2 test run to CESM CMIP5 data.
SciDAC2
cmip5
Most located in "model realm=ocnBgchem"
NH4 "Dissolved Ammonia" "mmol/m3"
nh4 "Dissolved Ammonium Concentration at Surface" "mol/m3"
NO3 "Dissolved Inorganic Nitrate" "mmol/m3"
no3 "Dissolved Nitrate Concentration at Surface" "mol/m3"
O2 "Dissolved Oxygen" "mmol/m3"
o2 "Dissolved Oxygen Concentration at Surface" "mol/m3"
SiO3 "Dissolved Inorganic Silicate" "mmol/m3"
si "Dissolved Silicate Concentration at Surface" "mol/m3"
diatChl "Diatom Chlorophyll" "mg/m3"
chldiat "Diatom Chlorophyll Mass Concentration at Surface" "kg/m3"
diazChl "Diazotroph Chlorophyll" "mg/m3"
chldiaz "Mass Concentration of Diazotrophs expressed as Chlorophyll in Sea Water at Surface" 'kg/m3"
spChl "Small phytoplankton Chlorophyll" "mg/m3"
chlpico "Mass Concentration of Picophytoplankton expressed as Chlorophyll in Sea Water at Surface" "kg/m3"
DIC "Dissolved Inorganic Carbon" "mmol/m3"
dissic "Dissolved Inorganic Carbon Concentration at Surface" "mol/m3"
DOC "Dissolved Organic Carbon" "mmol/m3"
dissoc "Dissolved Organic Carbon Concentration at Surface" "mol/m3"
Rest are in corresponding collections such as http://www.earthsystemgrid.org/dataset/cmip5.output1.NSF-DOE-NCAR.CESM1-BGC.piControl.mon.ocean.Omon.r1i1p2.html
SALT "Salinity" "gram/kilogram"
sos "Sea Surface Salinity" "psu"
TEMP "Potential Temperature" "degC"
tos "Sea Surface Temperature "K"
SFH_QSW "Solar Short-Wave Heat Flux" "watt/m2"
rsntds "Net Downward Shortwave Radiation at Sea Water Surface" "W/m2"
NOT AVAILABLE
DOFe"Dissolved Organic Iron" "mmol/m3"
DOFe is output by the model but not included in the CMIP5 data released on ESG.
("dfe" in CMIP5 is inorganic iron)
DON "Dissolved Organic Nitrogen" "mmol/m3"
("phyn" in CMIP5 is N in living matter)
DOP "Dissolved Organic Phosphorus" "mmol/m3" ("phyp" in CMIP5 is P in living matter)
BUT DOC = dissoc
and DON = 0.137 * DOC
and DOP is almost equal to DOC/117. (According to Keith Lindsey, NCAR)
DMSP "DiMethyl? SulfiPropitionate?" "mmol/m3"
NOT AVAILABLE in CMIP5 runs.
Land Variables
mrso
Description: Total Soil Moisture Content
tsl
Description: Temperature of Soil
cSoilFast
Description: Carbon Mass in Fast Soil Pool
cSoilMedium
Description: Carbon Mass in Medium Soil Pool
mrfso
Description: Soil Frozen Water Content
burntArea
Description: Burnt Area Fraction
cCwd
Description: Carbon Mass in Coarse Woody Debris
cSoil
Description: Carbon Mass in Soil Pool
cVeg
Description: Carbon Mass in Vegetation
cLeaf
Description: Carbon Mass in Leaves
