Saturday, 28 August 2010

Irminger Current

Synchronous acceleration and thinning of southeast (SE) Greenland glaciers during the early 2000s was the main contributor that resulted in the doubling of annual discharge from the ice sheet. We show that this acceleration was followed by a synchronized and widespread slowdown of the same glaciers, in many cases associated with a decrease in thinning rates, and we propose that ice sheet–ocean interactions are the first-order regional control on these recent mass changes. Sea surface temperature and mooring data show that the preceding dynamic thinning coincides with a brief decline in the cold East Greenland Coastal Current (EGCC) and East Greenland Current.

We suggest this decline was partly induced by a reduction in ice sheet runoff, which allowed warm water from the Irminger Current to reach the SE Greenland coast.
A restrengthening of the cold waters coincides with the glaciers' subsequent slowdown.

We argue that this warming and subsequent cooling of the coastal waters was the cause of the glaciers' dynamic changes. We further suggest that the restrengthening of the EGCC resulted in part from cold water input by increased glacier calving during the speedup and increased ice sheet runoff. We hypothesize that the main mechanism for ice sheet mass loss in SE Greenland is highly sensitive to ocean conditions and is likely subject to negative feedback mechanisms

Wednesday, 25 August 2010

ALLO You are still alive? Allo Temporary Life Forms

ALLO allo Temporary Life Forms

Super Blooms in Cold Water und OBAMA y THE NOBEL PISS PRIZE

Super Blooms in Cold Water

New Oil Frontier
A fire ship hoses down an iceberg to make it melt near the Stena Fourth drilling ship. Photograph: Go and see

The rain was tipping down today on the cluster of multicoloured buildings in the heart of the capital of Greenland but there was no dampening the spirits of Nuuk's residents following news that hydrocarbons had been found.