Halley Research Station, Antarctica: calving risks and monitoring strategies

Calving Fronts of Antarctica: Mapping and Classification

Antarctica is surrounded by a variety of large, medium and small sized ice shelves, glacier tongues and coastal areas without offshore floating ice masses. We used the mosaic of the Radarsat-1 Antarctica Mapping Project (RAMP) Antarctic Mapping Mission 1 (AMM) to classify the coastline of Antarctica in terms of surface structure patterns close to the calving front. With the aid of an automated ...

Calving and rifting on the McMurdo Ice Shelf, Antarctica

On 2 March 2016, several small en échelon tabular icebergs calved from the seaward front of the McMurdo Ice Shelf, and a previously inactive rift widened and propagated by ∼3 km, ∼25% of its previous length, setting the stage for the future calving of a∼14 km iceberg. Within 24 h of these events, all remaining land-fast sea ice that had been stabilizing the ice shelf broke-up. The events were w...

Mitigating snowdrift at the elevated SANAE IV research station in Antarctica: CFD simulation and field application

The elevated and aerodynamically streamlined South African Antarctic research base SANAE IV, in Queen Maud Land, off the Fimbul ice-shelf in Antarctica, exhibits unique wind driven snow drift formations. The longitudinal snowdrifts that form behind the interconnecting links that join the elevated research buildings are approximately 4 m high, 15 m wide and 60 m long are annually removed during ...

Monitoring atmospheric nitrous oxide background concentrations at Zhongshan Station, east Antarctica.

At present, continuous observation data for atmospheric nitrous oxide (N2O) concentrations are still lacking, especially in east Antarctica. In this paper, nitrous oxide background concentrations were measured at Zhongshan Station (69°22'25″S, 76°22'14″E), east Antarctica during the period of 2008-2012, and their interannual and seasonal characteristics were analyzed and discussed. The mean N2O...

The Palmer LTER: A Long-Term Ecological Research Program at Palmer Station, Antarctica