At first glance, the bright blue spots on a white sheet of Antarctica – a great illustration of the beauty of nature. However, scientists warn that melt ponds in abundance seen in the Antarctic are writing on the wall.
Almost 8000 dazzling blue lakes appeared on the glacier Langhovde in East Antarctica from 2000 to 2013. Newly appeared reservoirs may be a sign that the glacier is doomed. The same lake are observed in Greenland that melts at a much higher rate.
Known as nadlednikovye lake melt ponds form when warm air heats the surface of the ice sheet. According to new research, the lake water is removed from the ice, weakening it, because of what it cracks and breaks into pieces.
Scientists from the British Antarctic Survey have found out which part of the continent is not buried under the snow. The amount of bare soil turned out to be tiny – just 0.18% of the total area of Antarctica. Moreover, the researchers applied to place the card free of ice cover using satellite data.
Maps of naked rock in Antarctica – a key database for studies of the continent for a number of researchers and subject areas, including glaciology, geology and geomorphology. There is a digital map downloaded more than 2500 times in the last three years, – said the study’s lead author Alex Burton-Johnson of the British Antarctic Survey.