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The following Mountain MESH setup file contains all the required files to run the mountain MESH. It can be used as a template to prepare the required setup file to run Mountain MESH for the study basin.  The forcing file is GEM-CaPA ~ 10km for two years from 01-01-2002 to 31-13-2003. The MESH drainage file and MESH parameters files were produced from available land surface data consist of digital elevation models (DEMs), i.e. the hydrologically conditioned HydroSheds DEM that has a spatial resolution of approximately 90 m available at (https://www.mrlc.gov/downloads/sciweb1/shared/hydrosheds), and its derived products including flow direction and drainage density. Soil data was collected from a rasterized version of the Soil Landscapes of Canada (SLC) dataset (https://open.canada.ca/data/en/dataset). The dataset covers Canada at 90 m spatial resolution and is derived from original data at a scale of 1:1M. This dataset has some missing information for the Bow River Basin, for instance, there is no information on the percentages of clay and sand of the first soil layer (0 – 5 cm depth). Landcover data was downloaded from the Commission for Environmental Cooperation (CEC) (http://www.cec.org/north-american-land-change-monitoring-system/) covering all of North America at a resolution of 30 m with 19 land cover classes. The Randolph Glacier Inventory 6.0 data (https://www.glims.org/RGI/rgi60_dl.html), based on Landsat imagery from 2004–06, were used to delineate glacier coverage in the basin. The inventory was generated and manually checked in 2008 (Bolch et al., 2010). The detail on the mountain MESH can be found in the reference below.

A Sample Mountain MESH setup

A sample Mountain MESH setup file for Bow River at Banff can be accessed here.

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namebasinminmax_humidityparameters.nctxt
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namebasinMESH_longwaveinput_streamflow.nctxt
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namebasinMESH_presparameters.ncr2c
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namebasinMESH_rainparameters_CLASS.ncini
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namebasinMESH_shortwaveparameters_hydrology.ncini
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namebasinMetrics_temperatureBAD.nctxt
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namebasin_windrain.nc
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namebasin_winddirlongwave.nc
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nameMESHbasin_drainage_databasehumidity.r2cnc
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nameMESHoutputs_input_reservoirbalance.txt
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nameMESH_input_run_optionsmesh.inish
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nameMESH_inputdrainage_soil_levelsdatabase.txtr2c
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nameMESH_input_streamflowreservoir.txt
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nameMESH_parameters.r2cinput_run_options.ini
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nameMESHbasin_parameters_CLASSwinddir.ininc
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nameMESHbasin_parameters_hydrologywind.ininc
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nameMetricsbasin_BADshortwave.txtnc
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nameminmaxbasin_parameterstemperature.txtnc
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nameoutputsbasin_balancepres.txtnc
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namerun_mesh.shMESH_input_soil_levels.txt
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Script to automate MESH setup

Automating MESH model setup helps to make the setup reproducible. This R script (https://github.com/zktesemma/MESH_Pre-Processing) intend to facilitate model setup with a minimum efforts. Unlike Green Kenue, this script uses the minimum elevation of the maximum flow accumulation in each of the modeling grid (mostly set as the same as the forcing data grid size) to mimic the digital river network (then flow direction) when upscaling the flow direction from high resolution dem to low resolution modeling grid. The following steps are used in locating and identifying the flow direction from high resolution dem: mask out all the maximum flow accumulation cell in the modeling grid and then mask out the maximum flow accumulation cell by the minimum elevation

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