Open Science: Iceberg calving has increased
New study shows the iceberg calving from the Greenlandic glaciers has increased with almost 20 percent since 1986. The data and code from the research is accessible for anyone interested.
A new study led by The Geological Survey of Denmark and Greenland (GEUS) and published with Earth Systems Science Data estimate the ice discharge -transfer of land-ice into the ocean, at 276 tidewater glaciers around the Greenland Ice Sheet between 1986 and 2017. This makes it the most dense sampling of the ice sheet’s tidewater glaciers to date.
The ice-sheet-wide discharge or iceberg calving is estimated to have increased from less than 450 Gt/year in the 1980s and 1990s to closer to 500 Gt/year now. That increase of 50 Gt/year is equivalent to an extra 1600 tons per second of icebergs year-round relative to the 1980s and 1990s.