Sentences with phrase «lower part of the ice sheet»

Previous studies suggested impurities such as black carbon and dust drive melting of bare ice on the lower part of the ice sheet.

Not exact matches

Any parts of the bed this low are easily exposed to ocean water, allowing the ice sheet to weaken from below as the ocean water warms.

Based on the southern core we thought this was a localized low heat - flux region — but our model shows that a much larger part of the southern ice sheet has low heat flux.

Satellites detect a thinning of parts of the Greenland Ice Sheet at lower elevations, and glaciers are disgorging ice into the ocean more rapidly, adding 0.23 to 0.57 mm / yr to the sea within the last decaIce Sheet at lower elevations, and glaciers are disgorging ice into the ocean more rapidly, adding 0.23 to 0.57 mm / yr to the sea within the last decaice into the ocean more rapidly, adding 0.23 to 0.57 mm / yr to the sea within the last decade.

A massive ice sheet almost completely covers Greenland, and as summertime temperatures climb and sunlight hours lengthen, parts of the ice sheet surface usually melt, especially at lower elevations near the coast.

A CO2 pulse in the atmosphere will take centuries to finally return to original levels, and that is completely ignoring any potential feedbacks from other parts of the system (ie temperatures raised for centuries could result in massve methane releases and loss of signficant low albedo ice sheets etc.) The experiments I am aware of that show improved plant growth in elevated CO2 levels require that all additional biological needs are amply provided for.