Domine, Florent; Lalande, Mickaël; Tremblay, Étienne; Sarrazin, Denis; Poirier, Mathilde; Thiboult, Antoine; Kinnard, Christophe: Field measurements of vertical profiles of snow thermal conductivity (2014-2025) from a High-Arctic tundra permafrost site at Bylot Island, Canada [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.997506 (dataset in review), In: Domine, F et al.: Twelve years of meteorological, snow and soil data (2013-2025) from a High-Arctic tundra permafrost site at Bylot Island, Canada [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.997478 (dataset in review)
Abstract:
We present a detailed twelve-year dataset for an ice-wedge polygonal site in the Canadian High-Arctic, on Bylot Island at 73.15°N, 80°W which can be used to drive and test snow and land surface models. The site has prostrate vegetation and features thick continuous permafrost. Data are from 11 July 2013 to 1 August 2025. Continuous gap-free, quality-checked data with hourly measurements are presented. We provide driving data for energy budget calculations: air temperature at 2.3 m height, relative and specific humidity at 2.3 m height, atmospheric pressure, wind speed at 2.3 m height, shortwave downwelling radiation, longwave downwelling radiation, and precipitation as rain and snow. Model validation data are shortwave upwelling radiation, shortwave albedo, long-wave upwelling radiation, surface temperature, snow height, snow temperature at five heights, ground temperature and ground volume liquid water fraction at five depths. Measurements of snow thermal conductivity at three heights and ground thermal conductivity at three depths are provided every other day. Data on snow physical measurements from field campaigns in mid-May for nine of the twelve years are presented. Measurements provided are vertical profiles of snow density, snow specific surface area and snow thermal conductivity. Date/time used are UTC. Data are provided as TAB and netCDF.
This data set comprises manual measurements of the vertical profile of snow thermal conductivity during yearly field campaigns in mid-May. Measurements could not be performed in 2016 (logistical issues) and in 2020 and 2021 (Arctic closed to travel because of COVID-19). Two profiles were performed in May 2025. There is no quality flag because there is no gap-filling and all measurements were obtained using the same method: heated needle probe. Time is not indicated as it is irrelevant.
Related to:
Domine, Florent; Lalande, Mickaël; Tremblay, Étienne; Sarrazin, Denis; Poirier, Mathilde; Thiboult, Antoine; Kinnard, Christophe (in prep.): Twelve years of meteorological, snow and soil data (2013-2025) from a High-Arctic tundra permafrost site at Bylot Island, Canada, for running and testing snow and land-surface models. Earth System Science Data Discussions
Other version:
Yearly vertical profiles of snow density, specific surface area and thermal conductivity in netCDF format. profiles_insitu_byl_2014_2025_v0.2.nc
Funding:
Natural Sciences and Engineering Research Council (NSERC), grant/award no. NewClimateFeedbacks: New climate feedbacks in the Arctic
Coverage:
Median Latitude: 73.150327 * Median Longitude: -80.004496 * South-bound Latitude: 73.150083 * West-bound Longitude: -80.004720 * North-bound Latitude: 73.150401 * East-bound Longitude: -80.004222
Date/Time Start: 2014-05-14T00:00:00 * Date/Time End: 2025-05-18T00:00:00
Minimum HEIGHT above ground: 0.02 m * Maximum HEIGHT above ground: 0.50 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Domine, Florent | Geocode | ||
| 2 | LATITUDE | Latitude | Domine, Florent | GPS in field | Geocode | |
| 3 | LONGITUDE | Longitude | Domine, Florent | GPS in field | Geocode | |
| 4 | HEIGHT above ground | Height | m | Domine, Florent | Foldable ruler | Geocode |
| 5 | Conductivity, thermal, snow | k snow | W/m/K | Domine, Florent | Heated needle probe, Hukseflux, TP02 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
67 data points