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  • Station or cluster: CryoNet Cluster
  • Type: Not specified
  • WMO ID (if any):
  • Shape: point
  • Latitude, longitude: 45.1276389, 6.1115555
  • Altitude and/or range (m): 2720; 2700-2820
  • Landscape: Mountain
  • Year established: 1989
  • Year-round? No
  • Operations contact: Yannick Deliot
  • Science contact: Isabelle Gouttevin
  • Data contact: Hugo Merzisen
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Col du Lac Blanc
Not specified CryoNet Cluster Information

The Col du Lac Blanc pilot site is located near l'Alpe d'Huez resort in the Grandes-Rousses massif. The site is managed by Météo-France (CNRM/CEN) and IRSTEA (Université Grenoble Alpes). At this high altitude site, meteorological and snow/blowing snow parameters are recorded since 1992 using measurements at four stations: Lac Blanc, Dome, La Muzelle and Col. The four stations are described in separate questionnaires.

Stations in This Site

This site is comprised of the following stations:

Broad Research Focus

To site is primarily dedicated to study interactions between the cryosphere and the atmosphere at high altitudes, with a focus on blowing and drifting snow studies. The site is also used in snowpack modelling studies and as a target site to evaluate Numerical Weather Prediction (NWP) models.

Representativeness of the Cluster

The site is located at a high altitude with a very complex terrain configuration. The site is exposed to extreme meteorological situations.

Cluster Facilities

A field laboratory is located in the site.

Other Networks to Which This CryoNet Cluster Belongs

Measurement Methods Used

Data Information


- Guyomarc'h, G., Bellot, H., Vionnet, V., Naaim-Bouvet, F., Déliot, Y., Fontaine, F., Puglièse, P. , Nishimura, K., Durand, Y. & Naaim, M. (2019). A meteorological and blowing snow data set (2000–2016) from a high-elevation alpine site (Col du Lac Blanc, France, 2720 m asl). Earth System Science Data, 11(1), 57-69. https://doi.org/10.5194/essd-11-57-2019

- Schön, P., Naaim-Bouvet, F., Vionnet, V., & Prokop, A. (2018). Merging a terrain-based parameter with blowing snow fluxes for assessing snow redistribution in alpine terrain. Cold Regions Science and Technology, 155, 161-173. https://doi.org/10.1016/j.coldregions.2018.08.002

- Vionnet, V., Martin, E., Masson, V., Lac, C., Naaim Bouvet, F., & Guyomarc’h, G. (2017). High-resolution Large Eddy simulation of snow accumulation in alpine terrain. Journal of Geophysical Research: Atmospheres, 122. https://doi.org/10.1002/2017JD026947

- Naaim-Bouvet F., Picard G., Bellot H., Arnaud L., Vionnet V., 2016. Surface roughness monitoring using time-lapse terrestrial laserscan, International
Snow Science Workshop, Breckenridge.

- Schon P., Prokop A., Vionnet V., Guyomarch G., Naaim-Bouvet F., Heiser M., 2015, Improving a terrain-based parameter for the assessment of snow depths with TLS data in the Col du Lac Blanc area, Cold Regions science and Technology, Vol 114, 15-26. doi:10.1016/j.coldregions.2015.02.005

- Trouvilliez, A., Naaim-Bouvet, F., Bellot, H., Genthon C. and H. Gallee, 2015, Evaluation of the Flowcapt Acoustic Sensor for the Aeolian Transport of Snow, Journal of Atmospheric and Oceanic Technology, 32, 1630-1641.

- Vionnet, V., Martin, E., Masson, V., Guyomarch, G., Naaim-Bouvet, F., Prokop, A., Durand, Y., and Lac, C., 2014, Simulation of wind-induced snow transport in alpine terrain using a fully coupled snowpack/atmosphere model, The Cryosphere, 8, 395-415. DOI:10.5194/tc-8-395-2014

- Vionnet, V., Martin, E., Masson, V., Guyomarc'h, G., Naaim-Bouvet, F., Prokop, A., Durand, Y., and Lac, C., 2014, Simulation of wind-induced snow transport in alpine terrain using a fully coupled snowpack/atmosphere model, The Cryosphere, 8, 395-415. DOI:10.5194/tc-8-395-2014

- Naaim-Bouvet, F., Guyomarch G., Bellot H., Durand Y., Naaim M., Vionnet V., Genthon C., Nishimura K., Ito Y., Prokop A., 2013, Lac Blanc Pass : a natural wind-tunnel for studying drifting snow at 2700 m a.s.l., Proceedings of International Snow Science Workshop, Grenoble Chamonix Mont-Blanc, 1332-1339.

- Vionnet, V., Guyomarch, G., Naaim Bouvet, F., Martin, E., Durand, Y., Bel, C., Bellot, H., Pugliese, P. 2013. Occurrence of blowing snow events at an alpine site over a 10-year period: observations and modeling, Adv. Water Res., 55, 53-63.

- Naaim-Bouvet, F., Guyomarch, G., Naaim, M., Durand, Y., Bellot, H., Pugliese, P., 2012, Transport de neige par le vent sur un site de haute montagne : de la modelisation a l’observation, de l’observation a la modelisation. Houille Blanche-Revue Internationale de l eau, vol. 2012, 1, p. 51-57.

- Naaim-Bouvet, F., Naaim, M., Bellot, H., Nishimura, K., 2011, Wind and drifting-snow gust factor in an Alpine context. Annals of Glaciology, vol. 52, 58, p. 223-230.

- Naaim-Bouvet, F., Naaim, M., Bellot, H., 2010, Back analysis of drifting snow measurements over an instrumented mountainous site. Annals of Glaciology, vol. 51, no. 54, p. 207-217



The measurements made at Col du Lac Blanc are listed in the following tables. This is a combination of measurements made at the stations within the site, where the start and end years in the tables are the earliest and latest years of measurement. (Note: If End Year is blank, measurements are ongoing.)

Cryosphere Measurements

Element Variable Start Year End Year

Atmosphere Measurements

Element Variable Start Year End Year
MetAir temperature1989
MetHumidity/vapour pressure2011
MetWind speed and direction1989
RadiationDownwelling shortwave20112014
RadiationUpwelling shortwave20112014
RadiationDownwelling longwave2017
RadiationUpwelling longwave2017

Measurement Notes and Other Measurements

Category Description or List
SnowThe occurrence of drifting blowing snow events are available in the database.
AtmosphereHumidity/temperature profiles (six levels up to 7m above the ground) are also available since 2015.

Shortwave radiation measurements have been interrupted between 2014 and 2017. After autumn 2019 all radiation measurements will be transferred from Lac to Col station.

Last updated: 27 August 2019