The GLACIOCLIM SurfAce Mass Balance of Antarctica Observatory (SAMBA)
Download observatory data - Stake line data
(last update : 08.10.2020 => data D1, data DC, data AWS CP, data AWS KESAACO)
Data processing and distribution of data are performed in order to allow a direct use for research. However, a second quality control of data may be important in order to remove doubtful data when particular conditions where observed in the field.
Please contact us to inquire for latest information, status, availability and recommandations. Also please keep us informed of your uses of the GLACIOCLIM-SAMBA data. This is important for the long-term survival of the observatory.
Annual stakes surveys
A 150km stake line has been installed along the traverse way to Dome C. Stakes are measured once per year at the middle of summer. Snow density of the first 2.5m is obtained at each stake from ice cores.
How to read the surveys?:
- Column 1: Stake name
- Column 2: Year stake was set up
- Column 3: Stake emergence above the surface (cm)
- Column 4: Stake horizontal projection (cm) (Although vertical when initially set up, the stakes are flexible and tend to progressively bow as snow accumulates. It is recommended that emergences are corrected for this effect.)
- Column 5: (Warning!) Please note that several observation were made on stake quality. For instance, high wind broke several stakes and emergence data are not correct to assess accumulation during the year where the stake was broken. However, emergence data still make sense for the following years. As a consequence, emergence data is still available for these stakes, but a letter (b) in column 5 means that stake was broken.
Get data for:
Please note: Locations are accurate within a few meters to a few 100 meters only. This is because stakes move with the ice, in some cases as much as 100 m per year. Also, stakes are sometimes moved for practical reasons.
How to read stakes location?:
- Column 1: Stakes name
- Column 2: Longitude
- Column 3: Latitude
- Column 4: Along-track distance from coast
Get stakes location here
Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE)
54 Rue Molière - BP 96
38 402 Saint Martin d'Hères Cedex - FRANCE
Tel.: +33 (0) 4 76 82 42 00 - Fax.: +33 (0) 4 76 82 42 01