Greenland Ice-core Project/Greenland Ice Sheet Project 2
Quick Summary
The Greenland Ice-core Project/Greenland Ice Sheet Project 2 (GRIP/GISP2) involved drilling deep into the Greenland ice sheet to retrieve ice cores. These cores provide a detailed record of past climates, extending back over 100,000 years. By analyzing annual layers of snow and ice, scientists can reconstruct temperature variations using oxygen and hydrogen isotopes.123
These ice cores also preserve trapped air bubbles, offering insights into the composition of ancient atmospheres, including levels of greenhouse gases like carbon dioxide and methane. Studies of these cores have revealed significant fluctuations in climate, including rapid shifts that occurred over short periods, which have important implications for understanding future climate change.31
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
glacierInformation from deep cores…some locations, such as the Greenland Ice core Project/Greenland Ice Sheet Project 2 (GRIP/GISP2) sites at the summit of Greenland, these annual layers can be traced back more than 40,000 years, much like counting tree rings. The result is a remarkably high-resolution record of climatic change. When individual layers are…
Read More…some locations, such as the Greenland Ice core Project/Greenland Ice Sheet Project 2 (GRIP/GISP2) sites at the summit of Greenland, these annual layers can be traced back more than 40,000 years, much like counting tree rings. The result is a remarkably high-resolution record of climatic change. When individual layers are…
Read More
ice coreCore sites…to 1992 the joint European Greenland Ice-core Project (GRIP) at Summit station in east-central Greenland drilled through 3,029 metres (9,935 feet) of ice before striking bedrock. The following year GISP-2 was completed at a site 30 km (19 miles) to the west of the GRIP site. This effort reached a…
Read More…to 1992 the joint European Greenland Ice-core Project (GRIP) at Summit station in east-central Greenland drilled through 3,029 metres (9,935 feet) of ice before striking bedrock. The following year GISP-2 was completed at a site 30 km (19 miles) to the west of the GRIP site. This effort reached a…
Read More
