Identifiers for variables in the Hector carbon cycle component

These identifiers correspond to variables that can be read and/or set in the carbon cycle

LAND_CFLUX()

NBP()

ATMOSPHERIC_CO2()

NPP()

ATMOSPHERIC_C()

FFI_EMISSIONS()

LUC_EMISSIONS()

CO2_CONSTRAIN()

VEG_C(biome = "")

DETRITUS_C(biome = "")

SOIL_C(biome = "")

NPP_FLUX0(biome = "")

Arguments

biome: Biome for which to retrieve parameter. If missing or `""`, default to `"global"`.

Functions

CO2_CONSTRAIN: Constrain atmospheric CO2 concentration ("(ppmv CO2)")
VEG_C: Vegetation C pool (`"Pg C"`)
DETRITUS_C: Vegetation detritus C pool (`"Pg C"`)
SOIL_C: Soil C pool (`"Pg C"`)
NPP_FLUX0: Initial net primary productivity (NPP) flux (`"Pg C year^-1"`)

Output variables

These variables can be read using the GETDATA message type:

ATMOSPHERIC_CO2: Atmospheric CO2 concentration
ATMOSPHERIC_C: Atmospheric carbon pool
LAND_CFLUX: Annual global C flux from atmosphere into the land. A positive value means a net flux from atmosphere into land (i.e. land is a net carbon sink), while a negative value means a net flux from land into the atmosphere (i.e. land is a net carbon source)
NBP: Net biome production (synonymous with LAND_CFLUX). Note that despite the name, this is currently a globally-averaged variable.
FFI_EMISSIONS: Fossil fuel and industrial emissions
LUC_EMISSIONS: Land use change emissions

Input variables

FFI_EMISSIONS: Fossil fuel and industrial emissions ("Pg C/yr")
LUC_EMISSIONS: Land use change emissions ("Pg C/yr")
CO2_CONSTRAIN: Prescribed atmospheric CO2 concentration ("ppmv CO2")

Note

Because these identifiers are provided as #define macros in the hector code, these identifiers are provided in the R interface as function. Therefore, these objects must be called to use them; e.g., GETDATA() instead of the more natural looking GETDATA.