GlacioBasis Zackenberg - Glacier ice - Surface mass balance

Surface mass balance Glacier ice:Glacier ice GlacioBasis Zackenberg:Since 2008, the GlacioBasis programme has been monitoring the glacier surface mass balance at the A.P. Olsen Ice Cap and its response to climate forcing. Greenland’s glaciers and Ice Caps are losing mass at a rate more than double of the Ice Sheet when adjusted for size, accounting for 14-20 % of the total sea level rise contribution from Greenland. As the glaciological component of a core WMO GCW CryoNet site and a contributor to the GTN-G through WGMS, the GlacioBasis datasets complement the ongoing monitoring based at Zackenberg, enable process-based understanding of physical processes driven by glacier melt water run-off in the downstream terrestrial and marine ecosystems, and can inform regional and global assessments under AMAP and IPCC. GlacioBasis operates the year-round automatic monitoring of A.P. Olsen Ice Cap near-surface weather at three stations, a network of ablation stakes covering the entire altitude range, and geophysical survey campaigns on the ground (radar snow depth) and airborne (surface elevation from lidar, ice thickness from radar). GlacioBasis data collection is adaptively updated to support research in processes emerging as key sources of nonlinearity in the cryosphere, including melt water retention and albedo feedbacks. As a representative Northeast Greenland Ice Cap, A.P. Olsen observations delivered by GlacioBasis are available to the national and international remote sensing and climate modelling communities for calibration, validation and upscaling purposes.

Data and Resources

Dataset extent

Map data © OpenStreetMap contributors
Version 1
Citation Read the GEM terms of use and how to cite: For example: Data were provided by the Greenland Ecosystem Monitoring Programme. Dataset: GlacioBasis Zackenberg - Glacier ice - Surface mass balance. (10.17897/SNZB-ZA54) [download date: 2021-05-26]
  • Author Name: Greenland Ecosystem Monitoring
Temporal coverage
  • Temporal coverage start: 2009-05-13  Temporal coverage end: 2020-07-01
Spatial coverage { "coordinates": [ -21.6000003814697, 74.6500015258789 ], "type": "Point" }
Station zackenberg-research-station
Variable measured
  • Variable name: date  Variable description: date of spring measurement  Variable unit: YYYY-MM-DD  Variable URL:
  • Variable name: time  Variable description: time (not relevant but mandatory)  Variable unit: HH:MM:SS  Variable URL:
  • Variable name: site_name  Variable description: Site name  Variable unit: -  Variable URL:
  • Variable name: comments  Variable description: Comments  Variable unit: -  Variable URL:
  • Variable name: ablation  Variable description: Ablation  Variable unit: m w.e.  Variable URL:
  • Variable name: accumulation  Variable description: Accumulation  Variable unit: m w.e.  Variable URL:
  • Variable name: year  Variable description: Mass balance year  Variable unit: yyyy  Variable URL:
Measurement Technique
    Date published 2020-01-01
    Date modified
    • Publisher name: Greenland Ecosystem Monitoring  Publisher URL: