Dataset: Direct insertion of NASA Airborne Snow Observatory-derived snow depth time-series into the iSnobal energy balance snow model

This dataset is a companion to the submitted WRR publication entitled ‘Direct insertion of NASA Airborne Snow Observatory-derived snow depth time-series into the iSnobal energy balance snow model’. The file structure is organized as follows:

• ASO_50m_depth_surfaces - This folder contains the Airborne Snow Observatory lidar-derived snow depth products aggregated to 50m gridded spatial resolution. Each file is titled with a date such as ‘TBYYYYMMDD_SUPERsnow_depth.asc’. The coordinates are in UTM zone 11N and use the WGS84 coordinate system.
• static_grids
  • Static grids are used in each of the subsequent folders and are not changed between years.
  • init0000.ipw
    • Initialization file to begin the model run. Contains the digital elevation model in band 1, surface roughness raster in band 2, and zeroed images of snow properties in bands 3-7.
  • maxus.nc
    • netCDF file of 72 separate images of maximum upwind slope for all upwind directions from 0 (north) to 355 degrees in 5-degree increments. Derived using Adam Winstral’s Sx algorithm.
  • tuolx_dem_50m.ipw
    • Digital elevation model from ASO snow-free acquisition aggregated to 50m gridded spatial resolution. Same information as band 1 in the init0000.ipw file.
  • tuolx_hetchy_mask_50m.ipw
    • Basin mask of the Tuolumne River Basin above Hetch Hetchy Reservoir. Out-of-basin cells denoted as 0, and in-basin cells denoted as 1.
  • tuolx_vegheight_50m.ipw
    • Vegetation height raster in meters. Derived from NLCD dataset of vegetation type..
  • tuolx_vegk_50m.ipw
    • Emissivity of the vegetation canopy. Derived from NLCD dataset of vegetation type.
  • tuolx_vegnlcd_50m.ipw
    • Vegetation type from the National Land Cover Database.
  • tuolx_vegtau_50m.ipw
    • Fractional transmissivity of the vegetation canopy. Derived from NLCD dataset of vegetation type.
• level1_raw_data
  • {Hourly data interpolated to nearest hour from downloaded raw data (CDEC/MesoWest)}
  • air_temp_level1.csv
  • precip_accum_level1.csv
  • relative_humidity_level1.csv
  • solar_radiation_level1.csv
  • wind_direction_level1.csv
  • wind_speed_level1.csv

The directories for each water year contain the configuration file for that year along with the vector meteorological data from measurement sites and site metadata in .csv format.

• wy2013
• wy2014
• wy2015
• wy2016
  • • backup_config.ini {Initialization file used to distribute station data over a regular grid for each water year.}
    • air_temp.csv
    • cloud_factor.csv
    • metadata.csv
    • precip.csv
    • vapor_pressure.csv
    • wind_direction.csv
    • wind_speed.csv
    • data/
      • [subdirectory containing all future created forcing grid files]
    • runs/
      • [subdirectory containing all iSnobal output files in addition to reinitialization scripts for ASO snow depth updates]