STEMMUS_SCOPE BMI: which variables to expose

[BSchilperoort]

In #208 and EcoExtreML/STEMMUS_SCOPE_Processing#89 I have implemented a BMI for STEMMUS_SCOPE.

For testing purposes I have exposed two variables: the output variable fluxes.Resp and input+output variable TT (soil temperature).

For the implementation of the full BMI we will need to know which variables we want to expose. For these variables we will also need a long or standard name, as well as their unit.

Variables can be an "input variable" an "output variable" or both.

Variable standard name	Variable name in code	Input/output?	Unit	Grid
vegetation_respiration	fluxes.Resp	out	?	none
soil_temperature	TT	in+out	degC	ModelSettings.mN

@yijianzeng @bobzsu @Yunfei-Wang1993 could you fill in this table for all variables that need to be exposed?

[SarahAlidoost]

@MostafaGomaa93 please see the comment above. Which variables do you need to couple STEMMUS_SCOPE to the groundwater model (MODFLOW 6), please add them to the table above, thanks. relates #205

[MostafaGomaa93]

@SarahAlidoost. thanks. I am still not yet familiar with the variable names in the code, but I tried my best above. @yijianzeng can confirm the variables I add.

Variable standard name	Variable name in code	Input/output?	Unit	Grid
Sum of liquid and vapor water fluxes	sum of (QL, Qv, Qa)	out	kg/m2/s	none
Specified matric head at the deepest sublayer (Groundwater head)	hN (used when BoundaryCondition.NBChB == 1)	in	m	none

[BSchilperoort]

Hi @MostafaGomaa93, I've moved the variables you added to your own comment.

By grid I mean if they are on a certain model grid (for example the soil layers, or fluorescent wavelengths). I think the variables you specify are not on a specific model grid (if they are just one value, not an array).

[MostafaGomaa93]

Hi @BSchilperoort, thanks for your update. Sorry for my misunderstanding of what it means by "Grid". I think indeed the variables I add are one value, not an array.

[yijianzeng]

Variable standard name (refers to ALMA)	Variable name in code	variable name in equation (add also a link to paper)	Input/output?	Unit	Grid
vegetation_respiration	fluxes.Resp		out	?	none
soil_temperature	TT		in+out	degC	ModelSettings.mN
SoilVariables.hh	'hh'		in+out	mH2O	ModelSettings.mN+KT
not_availalbe (leaf water potential)	'PSI'		in+out	mH2O(need to check)	ModelSettings.mN+KT

Before i continue further, these two important soil-plant state varables (soil matric water potential and leaf water potential) are not output with time dimensions?

@Yunfei-Wang1993