Configuration (tracking) file keywords

Options

Keyword	Description
water_2H	Boolean switch to turn deuterium tracking on (1) or off (0)
water_18O	Boolean switch to turn oxygen-18 tracking on (1) or off (0)
water_Cl	Boolean switch to turn chloride tracking on (1) or off (0)
water_Age	Boolean switch to turn water age tracking on (1) or off (0)
water_frac	Boolean switch to turn evaporative fractionation (for \(^2H\) and \(^{18}O\) in the topsoil) on (1) or off (0)
water_fMelt	Boolean switch for snowmelt fraction
water_fGWlat	Boolean switch for tracking the fraction of water that once laterally flowed (gw in L1, L2 or L3)
water_fGWlat1	Boolean switch for tracking the fraction of water that once laterally flowed in L1
water_fGWlat2	Boolean switch for tracking the fraction of water that once laterally flowed in L2
water_fGWlat3	Boolean switch for tracking the fraction of water that once laterally flowed in L3
water_fGWseep	Boolean switch for tracking the stream water fraction that seeped from groundwater (L1, L2 or L3)
water_fGWseep1	Boolean switch for tracking the stream water fraction that seeped from L1
water_fGWseep2	Boolean switch for tracking the stream water fraction that seeped from L2
water_fGWseep3	Boolean switch for tracking the stream water fraction that seeped from L3

Toggle switches

Keyword	Description
Mixing_mode	Discretization of the tracer mass balance equation in a given compartment and subtimestep, i.e. the representative volumes and concentration used for \(C\frac{dV}{dt}+V\frac{dC}{dt}=QC_{in}-QC_{out}\). 0: uses \(C=C^{t+1}\) & \(V= V^{t+1}\). 1: uses \(C=\frac{C^t+C^{t+1}}{2}\) & \(V=\frac{1}{2}(V^t+Q_{in}+max(0,V^t-Q_{out}))\)
if water_frac = 1
Fractionation_surface_relhum	Relative humidity in air space of soil pores. 0: fixed to 1; 1: follows Lee and Pielke (1992); 2: follows Soderberg et al. (2012)
Fractionation_turbulent_factor	Choice of turbulent factor n in kinetic fractionation. 0: n =1; 1: n depends on soil water content, following Mathieu and Bariac (1996)
Fractionation_kinetic_diffusion	Ratio of isotopologues’ diffusivities (\(D_{^1H^2H ^{16}O}/D_{H_2 ^{16}O}\) and \(D_{H_2 ^{18}O}/D_{H_2 ^{16}O}\)). 0: follows Merlivat (1978); 1: follows Vogt (1976); 2: empirical model by Merlivat and Jouzel (1979) adapted by Haese et al. (2013)
Signature_air_moisture	Isotopic signatures of ambient air moisture. 0: derived from the precipitation with equilibrium assmuption (Gat, 1995 + Gibson and Reid, 2014). 1: Read from dedicated input time series.

Two-pore domain

optional map file must be placed in Maps_Folder

Keyword	Type	Unit	Description
water_two-pore_domain	boolean switch	\([-]\)	Turns on (1) or off (0) two-pore domain conceptualization of subsurface water mixing (first two hydrological layers)
MobileWater_Transition_Head	Map file name	meters of head	if water_two-pore_domain = 1, map of map of pressure head delimiting the two domains: mobile water and tightly-bound

Climate information for tracers

Binary files must be placed in Clim_Maps_Folder. Only necessary if the corresponding tracking switches (water_2H, water_18O and/or water_Cl) are set to 1.

Keyword	Type	Unit	Description
d2H_precip	Binary climate file name	‰	Deuterium signature of precipitation
d18O_precip	Binary climate file name	‰	Oxygen 18 signature of precipitation
cCl_precip	Binary climate file name	\(mg\ L^{-1}\)	Chloride concentration of precipitation

if Irrigation_Input is set to 1

Keyword	Type	Unit	Description
d2H_irrig	Binary climate file name	‰	Deuterium signature of irrigation
d18O_irrig	Binary climate file name	‰	Oxygen 18 signature of irrigation
cCl_irrig	Binary climate file name	\(mg\ L^{-1}\)	Chloride concentration of irrigation

if Signature_air_moisture is set to 1

Keyword	Type	Unit	Description
d2H_air	Binary climate file name	‰	Deuterium signature of ambient air mositure
d18O_air	Binary climate file name	‰	Oxygen 18 signature of ambient air moisture

Initial conditions for water tracers

Files must be located in Maps_Folder. Only necessary if the corresponding tracking switches ``water_``*trc* are set to 1, with trc being either d2H, d18O, cCl, Age, fMelt, fGWlat, fGWlat1, fGWlat2, fGWlat3, fGWseep, fGWseep1, fGWseep2, fGWseep3.

Keyword	Type	Unit	Description
init_trc_snowpack	Map file name	‰, mg/L, or days	Initial snowpack signature
init_trc_surface	Map file name	‰, mg/L, days or fraction	Initial surface (channel and ponding) signature
init_trc_soil1	Map file name	‰, mg/L, days or fraction	Initial signature in hydrological layer 1
init_trc_soil2	Map file name	‰, mg/L, days or fraction	Initial signature in hydrological layer 2
init_trc_soil3	Map file name	‰, mg/L, days or fraction	Initial signature in hydrological layer 3

Simulation outputs: map report switches

Simulation outputs: time series report switches

Written outputs file are time series tables at cells identified in TS_mask (see main configuration file). In the output files, the order of columns might differ from that of locations IDs specified in TS_mask, please check the output files’ header. Only relevant if the corresponding tracking switches ``water_``*trc* are set to 1, with trc being either d2H, d18O, cCl, Age, fMelt, fGWlat, fGWlat1, fGWlat2, fGWlat3, fGWseep, fGWseep1, fGWseep2, fGWseep3.

Keyword	Unit	Description	File name
Ts_trcprecip	‰, mg/L	Precipitation signature (climate input)	trc_precip.tab
Ts_trcirrig	‰, mg/L, or days	Irrigation signature (climate input)	trc_irrig.tab
Ts_trcair	‰	Ambient air moisture signature (calculated or climate input)	dH/dO + air
Ts_trccanopy	‰, mg/L, or days	Signature of intercepted water storage of species \(k\)	trc_canopy_\(k\).tab
Ts_trccanopy_sum	‰, mg/L, or days	Signature of intercepted water storage, summed over species fractions	trc_canopy.tab
Ts_trcsnowpack	‰, mg/L, or days	Snowpack signature	trc_snowpack.tab
Ts_trcsnowmelt	‰, mg/L, or days	Snowmelt signature	trc_snowmelt.tab
Ts_trcponding	‰, mg/L, days or fraction	Surface ponding signature	trc_ponding.tab
Ts_trcchannel	‰, mg/L, days or fraction	Stream water signature	trc_channel.tab
Ts_trcinfilt	‰, mg/L, days or fraction	Water signature of surface infiltration	trc_infilt.tab
Ts_trcsoil1	‰, mg/L, days or fraction	Water signature in 1st hydrological layer	trc_soilL1.tab
Ts_trcsoil2	‰, mg/L, days or fraction	Water signature in 2nd hydrological layer	trc_soilL2.tab
Ts_trcsoil3	‰, mg/L, days or fraction	Water signature in 3rd hydrological layer	trc_soilL3.tab
Ts_trcsoilUp	‰, mg/L, days or fraction	Storage-weighted average water signature in 2 uppermost hydrological layers	trc_soilUp.tab
Ts_trcsoilAv	‰, mg/L, days or fraction	Storage-weighted average water signature in the subsurface layers	trc_soilAv.tab
Ts_trcgroundwater	‰, mg/L, days or fraction	Signature of water above field capacity in subsurface layers (storage-weighted)	trc_groundwater.tab
Ts_trcwatertable	‰, mg/L, days or fraction	Signature of water in the shallowest layer with storage above field capacity	trc_watertable.tab
Ts_trcevapS	‰, days or fraction	Signature of water directly evaporated from the soil under species \(k\)	trcevapS_\(k\).tab
Ts_trcevapS_sum	‰ , days or fraction	Signature of water directly evaporated from the soil, averaged over species fractions (including bare soil)	trc_evapS.tab
Ts_trcevapI.tab	‰ or days	Signature of evaporated canopy interception in species \(k\)	trcevapI_\(k\).tab
Ts_trcevapI_sum	‰ or days	Signature of evaporated canopy interception, averaged over species fractions	trc_evapI.tab
Ts_trcevapT	‰ , days or fraction	Signature of root-uptaken water in species \(k\)	trcevapT_\(k\).tab
Ts_trcevapT_sum	‰ , days or fraction	Signature of root-uptaken water, summed over species fractions	trc_evapT.tab
If water_two-pore_domain set to 1
Ts_trcsoil1_MobileWater	‰, mg/L, days or fraction	Signature of mobile water in 1st hydrological layer	trc_MW1.tab
Ts_trcsoil2_MobileWater	‰, mg/L, days or fraction	Signature of mobile water in 2nd hydrological layer	trc_MW2.tab
Ts_trcsoil1_TightlyBound	‰, mg/L, days or fraction	Signature of tightly-bound water in 1st hydrological layer	trc_TB1.tab
Ts_trcsoil2_TightlyBound	‰, mg/L, days or fraction	Signature of tightly-bound water in 2nd hydrological layer	trc_TB2.tab