CARDAMOM Netcdf input file

Summary

The CARDAMOM netcdf input file is a “one-stop shop” for all inputs required to configure CARDAMOM including:

• Model structure choice (Model ID [add link here])

• Forcing data required by model structure (meteorlogical drivers, latitude)

• Observations (datasets, time varying uncertainties, and other cost function options)

• MCMC options

• Minimal ancillary non-functional data (these are optional: includes longitude, notes, etc.)

Variable names, definitions and conventions

DALEC Meteorological Driver	Description	Units
BURNED_AREA	Burned area	m2/m2 (meters squared per meters squared)
CO2	Atmospheric carbon dioxide concentration	ppm (parts per million)
DOY	Day of year	Days
Total_Prec	Total precipitation	mm/day (millimeters per day)
SNOWFALL	Total snowfall	mm/day (millimeters per day)
SSRD	Surface shortwave radiation downwards (Solar irradiance or radiation from sun reaching surface)	MJ/m2/day (Mega Joules per meters squared per day)
T2M_MIN	Minimum 2-meter air temperature	oC (degrees Celsius)
T2M_MAX	Maximum 2-meter air temperature	oC (degrees Celsius)
time	Time since January 01/01/2000 00:00	Days
VPD	Vapor pressure deficit	hPA (hectopascal)

Time Varying Observations	Description	Units
ABGB	Above and belowground biomass	g C/m2/day (grams of carbon per meters squared)
CH4	Methane	g CH4/m2/day (grams of methane per meters squared per day)
ET	Evapotranspiration	mm/day (millimeters per day) equivalent to kg H2O/m2/day (kilograms water per meters squared per day)
EWT	Equivalent Water Thickness	cm (centimeters)
GPP	Gross primary productivity or Solar induced fluorescence	g CO2/m2/day (grams of carbon dioxide per meters squared per day) or
LAI	Leaf area index	m2/m2(meters squared per meters squared)
NBE	Net Biosphere Exchange	g CO2/m2/day (grams of carbon dioxide per meters squared per day)
SCF
SOM	Soil Organic Matter	g C/m2(grams of carbon per meters)

Time Invariant Observations	Description	Units
Mean_Biomass	Mean above and belowground biomass	m2/m2
Mean_Fire	Mean fire emissions	g CO2/m2/day (grams of carbon dioxide per meters squared per day)
Mean_GPP	Mean gross primary productivity	g CO2/m2/day (grams of carbon dioxide per meters squared per day)
Mean_LAI	Mean leaf area index	m2/m2(meters squared per meters squared)
PEQ_Cefficiency	Canopy efficiency – If in tropics assign value as 17.5
PEQ_CUE	Autotrophic fraction – If NBE and GPP are used do not assign this otherwise assign value of 0.5
PEQ_iniSOM	Initial soil organic matter	g C/m2(grams of carbon per meters squared per day)

Important NETCDF Variables	Description	Units
MCMCID	Monte Carlo Markov chain algorithm	unitless
ID	DALEC Model ID	unitless
EDC	Environmental dependent constraints	unitless
LAT	Latitude	odegrees

FAQ

Q: If I’m not assimilating an observation, can I just delete the corresponding OBS field my cbf.nc file, or do I have to keep it and put NaN in the corresponding subsets?

Answer: you can delete it