Prior to starting our analysis, we were expecting to find a decline in ice thickness and grounded ice
based on our examination of temperature and precipitation records of the past five decades from the Barrow meteorological station," said Surdu "At the end of the analysis, when looking at trend analysis results, we were stunned to observe such a dramatic ice decline during a period of only 20 years.
Image with caption: "Graph showing the reduction in grounded ice
between 1992 and 2011.
The grounded ice
bridge constructed by the 6th Engineer Battalion (Combat) (Airborne) was a structure that closely resembled a road rather than a bridge.
However, the problem is that global warming is melting ice that's sitting on the land of Greenland and Antarctica; the releasing of the grounded ice
adds additional water to the oceans, thus raising the sea level.
The sonar images clearly showed objects resembling rocks and other debris that may have once been dragged along the seafloor beneath the grounded ice
During the next 100 years, and perhaps the next 200 years, it is probable that greater snowfall on Antarctica will outweigh the increased loss of grounded ice
caused by increasing ocean temperatures, the statement says.
The match-up indicates that the water flow beneath the grounded ice
sheet is responsible for the formation of the channels beneath the floating ice shelf.
As that grip continues to loosen, these already-thinning ice shelves will be even less able to hold back grounded ice
upstream, according to glaciologists at The University of Texas at Austin's Institute for Geophysics (UTIG).
Later, the grounded ice
retreated, leaving a permanent floating ice canopy.
This habitat was released after the retreat of the grounded ice
sheet in the Ross Sea Embayment 7,500-8,000 years ago, and is within the range of modern foraging excursions from the Macquarie Island colony.