Improving Predictions of Melting Rate of Ice Sheets

Researchers are tracking the influence of geothermal heat flux on ice.

via the Johns Hopkins News-Letter

The ice sheets in Greenland and Antarctica comprise more than 90% of Earth’s freshwater ice. When it comes to glaciology, global warming is often touted as the most important issue. But according to some scientists, there is another issue that is just as important: geothermal heat flux (GHF).

GHF refers to the amount of heat that originates from the Earth’s interior and transfers to the surface. The rocky layer of bedrock sediment at the surface comes in contact with basal layer ice. Heat emanates from the sediment to the basal ice layer, which in turn affects the temperature of ice at the base layer.

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