Database corresponding to the research work submitted to Water Resources Research : "Capturing the Little Washita watershed water balance with a physically-based two-hydrologic-variable model" Fanny Picourlat (fanny.picourlat@lsce.ipsl.fr), Emmanuel Mouche, Claude Mugler

"Geomorphic_Analysis" directory ------------------------------------------------------------------------------

Little Washita geomophic analysis results. Analysis conducted on the 100 m resolution DEM (from USGS datadase, accessible at https://www.usgs.gov/core-science-systems/national-geospatial-program/small-scale-data) using a flow paths modeling algorithm developped by Maquin (2016).

- Hillslopes_Length.csv : List of hillslopes lengths [m]

- Hillslopes_MeanSlopes.csv : List of hillslopes mean slopes [%]

"3DREF_model_19981999" directory ------------------------------------------------------------------------------ Three-dimensional reference model files : exemple of the 1998-1999 water year simulation.

- LWo.grok : Data file prepared for the pre-processor, which is then run to generate the input data files for HydroGeoSphere.

- "Outputs" directory ---------------------------------------------
Output files that form paper's figures.

  - LWo.hydrograph.Hydrographe_USGS1_07327550.dat : Streamflow at USGS1
  - LWo.water_balance.dat : Water balance
  - LWo.pm.dat : Subsurface domain variables for all nodes for all output times. File used for plotting depth to water table.
  - LWo.olf.dat : Surface domain variables for all nodes for all output times. File used for plotting evapotranspiration at the closest node from the Ameriflux station.

"Hillslope_Model" directory ----------------------------------------------------------------------------------- Equivalent hillslope model files for the 20-year simulation.

- LWo.grok : Data file prepared for the pre-processor, which is then run to generate the input data files for HydroGeoSphere.

- "Outputs" directory ----------------------------------------------

  - LWo.water_balance.dat : Water balance. File used for plotting hillslope discharge and evapotranspiration.
  - LWo.observation_well_flow.Well_1.dat : Outputs at nodes located at x=100m. File used for plotting depth to water table.
  - LWo.pm.dat : Subsurface domain variables for all nodes for all output times. File used to extract the "post-processed" files described below.


  - "Post_processed" directory -------------------------------
   Data extracted from the output file LWo.pm.dat.


    - TAB_xzy_sat.csv : Saturation for all nodes for all output times. Used for defining the seepage face extension Xs(t).
    - x(t).csv : x coordinate (for all output times) of the intersection point between roots ending limit and water table. Used for defining the water table slope tan(i(t)).

"Params" directory -------------------------------------------------------------------------------------------- Parameters files for both 3DREF model (1998-1999 simulation) and hillslope model (20-year simulation).

- "Topography" directory --------------------------------------------
  - maillage_hgs_corr3_riv.2dm : Horizontal 3D mesh file
  - fichier_altitude_grok_corr3_riv_b.txt : 3D surface nodes elevation [m]

- "Props" directory -------------------------------------------------
  - LW.mprops : Subsurface material parameters
  - LW.oprops : Surface domain parameters
  - LW_LAI.etprops : Vegetation parameters

- "Zones_vg" directory ----------------------------------------------
  - zone_1_ele.txt : Bare soil 3D elements IDs
  - zone_2_ele.txt : Deciduous forest 3D elements IDs
  - zone_3_ele.txt : Evergreen forest 3D elements IDs
  - zone_4_ele.txt : Shrubs 3D elements IDs
  - zone_5_ele.txt : Grassland 3D elements IDs
  - zone_6_ele.txt : Pasture 3D elements IDs
  - zone_7_ele.txt : Crops 3D elements IDs

- "Forcings" directory ----------------------------------------------
  - NARR_day_9899.csv : Daily rainfall [m/s] on 1998-1999
  - NARR_day_etp_9899.csv : Daily Potential Evapotranspiration [m/s] on 1998-1999
  - NARR_day_9313.csv : Daily rainfall [m/s] on 1993-2013
  - NARR_day_etp_9313.csv : Daily Potential Evapotranspiration [m/s] on 1993-2013

- "Output_times" directory ------------------------------------------
  - output_times_365d.csv : Output times [s] for 365 days
  - output_times_20y.csv : Output times [s] for 20 years

- "Rivers" directory ------------------------------------------------
  - no_rivers_ele.txt : No river 3D elements IDs
  - rivers_ele.txt : River 3D elements IDs

- "LAI" directory ---------------------------------------------------
LAI files (1st column : time [s], 2nd column : LAI [-])
  - LAI_2_hydro.csv : Deciduous forest LAI over one water year
  - LAI_4_5_6_hydro.csv : Shrubs, grassland and pasture LAI over one water year
  - LAI_winterwheat_OAlaoui.csv : Crops LAI over one water year
  - LAI_eq_20y.csv : Equivalent LAI (for hillslope model) over 20 years

"Analytical_Model" directory -----------------------------------------------------------------------------------

- Analytical_model.py : Analytical model code for the 20-year simulation of the equivalent hillslope water balance.

This contains two datasets that support the manuscript referenced in the titleK600 dataset contains the k600 values and hydrology parameters for the study sites. See sections 2.2-2.6 for more details on the methodology for each method. The columns are as follows:Date: YYYY-MM-DDSite: Denotes the siteRaymond2: K600 calculated from Raymond eq 2 (m d-1)Raymond5: K600 calculated from Raymond eq 5 (m d-1)Natchimuthu: K600 calculated from Natchimuthu (m d-1)Ulseth: K600 calculated from Ulster (m d-1)Chamber: K600 calculated from the floating chamber (m d-1)CO2.MassBalance: K600 calculated from the CO2 tracer gas as a mass balance (m d-1)CO2.FirstOrder: K600 calculated from the CO2 tracer gas as a first order (m d-1)Propane.FirstOrder: K600 calculated from the propane tracer gas as a first order (m d-1)V: flow velocity (m s-1)Q: flow rate (L s-1)The fluxes dataset contains upscaled flux estimates for three different day for the entire study reach using 9 different methods. See section 2.7 and SI Text 2 for detailed info. All flux units are mol CO2 d-2.