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Antarctic-Coastal Waters -Growing Faster

The western part is Antarctica is undergoing a tremendous change. Melting ice is causing a rise in sea levels in places that are about the coast of Antarctica, says a report in Nature Geoscience.

The water goes by around 2mm which is way above what has been experienced for the last decade. Scientists have pointed out that melt ice glaciers and ice is dumping up to 350 billion tones of water into the sea, which warms and freshens the ocean, thus causing a rise in the water level.

“Freshwater have lower density than ice, so places that experience a lot of melting will absolutely have its shores rising,” said Dr Craig Rye, who is the lead author and researcher.

All over the world, sea levels are going up and this is one of the leading causes of the diminishing water supplies. However, the Nature Geoscience is the very first of reports to show the consequence of the rising sea surface in Antarctica and adjacent areas.

While the data from satellite records show that there was a general upward trend of up to 2.4 mm yearly, the data also show a massive rise in water levels, especially those   that are above the continental shelf.

Modeling which was presented by Dr Rye’s team show that the rise in height by up to 2mm can purely be attributed to freshwater runoff from the Antarctica, but not oscillation which would occur in the sea at times.

“ We can do a precise estimation about the volume of water that the wind is forcing towards the continental shelf and show with clarity why the rise in sea level cannot be attributed to the wind,” Dr Rye Said.

“ Since we can come up with fresh water modeling, we can authoritatively say that this is mostly like what we see out there everyday and we can clearly conclude that the signal is due to freshwater forcing”.

Recent pictures picked from the satellite have shown that there was increased loss of mass in the Antarctica and much of these can be attributed by increased discharge that occurs in the western side of the continent, especially along the Antarctica Peninsula.

The researchers further said” the growth is limited, but takes a complete regional character. However, it can be said to be significant, for now”. But how freshening of the surface water is now one of the target areas of study.

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