Meteorological and snowpack observations from the Jeff Dozier Snow Study Site [formerly the CRREL/UCSB Energy Site (CUES)] on Mammoth Mountain, CA, USA: 1 January 2015 – 30 June 2025

Overview This is a post-processed dataset of select measurements from the Jeff Dozier Snow Study Site—formerly the CRREL/UCSB Energy Site (CUES)—on Mammoth Mountain, California, USA (https://snow.ucsb.edu/) over the 1 January 2015 – 30 June 2025 period. Coordinates: 37.6431°N, 119.0291°W [map] Elevation: 2936 m (9633 ft) Processing of this dataset was conducted by Manda Chasteen, Leidos Inc., in 2025 as part of work supported by U.S. Army Cold Regions Research and Engineering Laboratory award W913E523C0002. The raw uncleaned data—and other observations from this same period that were not included herein—can be downloaded from https://snow.ucsb.edu/. DoD Distribution Statement A. Approved for public release: distribution is unlimited. _____________________________________________________________________________________________________________________________________________ File Descriptions See README for more information 1-min data: CUES_1min_data_atmos_radiation_soiltemp_precip_2015to2025.nc: netCDF file containing 1-min observations of atmospheric variables, upwelling and downwelling radiation, soil temperature, and disdrometer precipitation measurements. ncdump_CUES_1min_data_atmos_radiation_soiltemp_precip_2015to2025.txt: text file summarizing the file contents via the output from ncdump -h CUES_1min_data_atmos_radiation_soiltemp_precip_2015to2025.nc Atmosphere: air_temperature air_temperature_data_flag relative_humidity relative_humidity_data_flag station_pressure station_pressure_data_flag wind_speed wind_direction Radiation: surface_skin_temperature surface_skin_temperature_data_flag downwelling_longwave_platform downwelling_longwave_platform_data_flag downwelling_shortwave_platform downwelling_shortwave_platform_data_flag downwelling_shortwave_platform_instrument_flag downwelling_shortwave_adj_boom downwelling_shortwave_adj_boom_data_flag upwelling_shortwave_fixed_boom upwelling_shortwave_fixed_boom_data_flag upwelling_shortwave_adj_boom upwelling_shortwave_adj_boom_data_flag Soil temperature: soil_temperature_0cm_north soil_temperature_10cm_north soil_temperature_20cm_north soil_temperature_30cm_north soil_temperature_40cm_north soil_temperature_50cm_north soil_temperature_70cm_north soil_temperature_70cm_north soil_temperature_80cm_north soil_temperature_90cm_north soil_temperature_0cm_south soil_temperature_10cm_south soil_temperature_20cm_south soil_temperature_30cm_south soil_temperature_40cm_south soil_temperature_50cm_south soil_temperature_70cm_south soil_temperature_70cm_south soil_temperature_80cm_south soil_temperature_90cm_south soil_temperature_0cm_center soil_temperature_10cm_center soil_temperature_20cm_center soil_temperature_30cm_center soil_temperature_40cm_center soil_temperature_50cm_center soil_temperature_70cm_center soil_temperature_70cm_center soil_temperature_80cm_center soil_temperature_90cm_center Precipitation: rainfall_rate snowfall_swe_rate accumulated_rain_1min precipitation_type precipitation_phase number_of_hydrometeors equivalent_radar_reflectivity visibility _____________________________________________________________________________________________________________________________________________ 5-min data: CUES_5min_data_snowdepth_swe_density_2015to2025.nc: netCDF file containing 5-min observations of snow depth, snow water equivalent (SWE), and derived snow density. ncdump_CUES_5min_data_snowdepth_swe_density_2015to2025.txt: text file summarizing the file contents via the output from ncdump -h CUES_5min_data_snowdepth_swe_density_2015to2025.nc Snow depth: snow_depth_wind_mast snow_depth_wind_mast_data_flag snow_depth_wind_mast_instrument_flag snow_depth_fixed_boom snow_depth_fixed_boom_data_flag snow_depth_fixed_boom_instrument_flag snow_depth_platform_south snow_depth_platform_south_data_flag snow_depth_platform_south_instrument_flag snow_depth_remote_boom snow_depth_remote_boom_data_flag snow_depth_remote_boom_instrument_flag snow_depth_remote_boom_density_calc snow_depth_platform_north snow_depth_platform_north_data_flag snow_depth_platform_north_instrument_flag snow_depth_platform_north_density_calc SWE: swe_dri_pillow swe_dri_pillow_data_flag swe_dwr_pillow swe_dwr_pillow_data_flag snowless_periods_dwr_pillow_flag swe_dwr_pillow_density_calc swe_ssg_pillows swe_ssg_pillow_data_flag snowless_periods_ssg_pillow_flag swe_ssg_pillow_density_calc Derived snow density: snow_density_dwr_pillow snow_density_ssg_pillow _____________________________________________________________________________________________________________________________________________ 15-min data: CUES_15min_data_meltwater_soilmoisture_2015to2025.nc: netCDF file containing 15-min observations of snow meltwater and soil moisture. ncdump_CUES_15min_data_meltwater_soilmoisture_2015to2025.txt: text file summarizing the file contents via the output from ncdump -h CUES_15min_data_meltwater_soilmoisture_2015to2025.nc Snow meltwater: meltwater_south_1 meltwater_south_1_NaN_flag meltwater_south_1_large_flag meltwater_south_1_scaling_flag meltwater_south_2 meltwater_south_2_NaN_flag meltwater_south_2_large_flag meltwater_south_2_scaling_flag meltwater_south_3 meltwater_south_3_NaN_flag meltwater_south_3_large_flag meltwater_south_3_scaling_flag meltwater_south_4 meltwater_south_4_NaN_flag meltwater_south_4_large_flag meltwater_south_4_scaling_flag meltwater_north_5 meltwater_north_5_NaN_flag meltwater_north_5_large_flag meltwater_north_5_scaling_flag meltwater_north_6 meltwater_north_6_NaN_flag meltwater_north_6_large_flag meltwater_north_6_scaling_flag meltwater_north_7 meltwater_north_7_NaN_flag meltwater_north_7_large_flag meltwater_north_7_scaling_flag meltwater_north_8 meltwater_north_8_NaN_flag meltwater_north_8_large_flag meltwater_north_8_scaling_flag Soil moisture: soil_moisture_10cm_south soil_moisture_20cm_south soil_moisture_30cm_south soil_moisture_40cm_south soil_moisture_60cm_south soil_moisture_100cm_south soil_moisture_10cm_north soil_moisture_20cm_north soil_moisture_30cm_north soil_moisture_40cm_north soil_moisture_60cm_north soil_moisture_100cm_north _____________________________________________________________________________________________________________________________________________ Grouped data: CUES_grouped_data_2015to2025.nc: consolidated netCDF file containing all prior observations, split into groups: data_1_min, data_5_min, data_15_min. ncdump_CUES_grouped_data_2015to2025.txt: text file summarizing the file contents via the output from ncdump -h CUES_grouped_data_2015to2025.nc