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Hot September in Greenland causes record melting of glaciers

In Greenland, located between the Atlantic Ocean and the Arctic Ocean, the ice cover, the melting process of which begins in May under normal conditions and stops in September, expands with the frost that begins with the season winter and reaches its full mass. However, in September this year, an unusual situation occurred on the island, which is 80% covered in ice.

In a statement from the US National Aeronautics and Space Administration (NASA), “On September 3, 592,000 square kilometers of the ice cap melted. It is the second largest in 2022 and the largest recorded in September since records began. Melt events of this magnitude are unlikely in September, as seasonal temperatures often drop as sunshine hours decrease.‘ it was said.

The US National Snow and Ice Data Center (NSIDC), which conducts research on the poles and glaciers, said the melt, normally seen in midsummer, occurred in September. In the NSIDC report, which claimed that such a melt had never been seen before, “Between September 2 and 5, an end-of-season heat wave and melt occurred in Greenland. When the melt peaked on September 3, 600,000 square kilometers of the ice sheet, or 36%, had melted at the surface.‘ have been included.

“A SERIOUS CLIMATE CHANGE ALERT”

Assessing the extent of glacial melt in Greenland teacher. Dr. Murat TurcesHe said that due to human-induced climate change, particularly over the past 45 to 50 years, all permanent ice masses and snow covers in the world have melted and decreased in area and size. volume.

Türkeş said the widespread melting of the Greenland Glacier in September is associated with many successive events.For a long time it has been recorded that even in winter in the arctic region and in Greenland, there are days that are around 10, 15, 20 degrees warmer than the long-term averages. Record temperatures were again recorded in September this year. These are the most serious repercussions of global warming.” said.

Emphasizing that global warming has changed the snow-ice regime, Türkeş said:

This year, a hot summer has been experienced in the region which started in Northwest Africa and includes Western Europe, parts of the Arctic region and Greenland. So this is an unexpected collapse and a serious warning of climate change. During the period of about 40 to 45 years, the balance of formation and melting of snow and ice has been disturbed in Arctic glaciers, including the Greenland Ice Shield, and more ice was lost than holding ice. Especially with the spring and summer periods, there has been a deterioration of the glacial balance in Greenland and the Arctic region.

EFFECT OF HOT AIR WAVES

Explaining that one of the reasons for the melting in Greenland is the heat wave felt especially on the European continent this summer, Türkeş said: “Heat waves affect not only the tropical region, mid-latitudes and the Mediterranean, but also the Arctic region. We know that even there are heat waves, even marine heat waves occur. This is why the rate of ice melt in Greenland and many parts of the Arctic region was much higher in 2022.‘ he said.

Turks continued:

In the future, not only the average temperatures, but also the highest and lowest air temperatures, as well as the frequency, severity, duration and impact of heat waves will increase. Of course, due to melting snow ice, glaciers, permafrost, lakes and sea ice, mean sea level rise, coastal flooding and erosion, heat waves marine, the acidity of the oceans will be felt more and more in the period to come. .

“THE ECOSYSTEM AND PEOPLE WILL ALSO BE AFFECTED”

Emphasizing that the recorded collapse will also have effects on the ecosystem, biodiversity and people of the Arctic region, Türkeş said: “Warmer water means more carbon dioxide buildup in the oceans, more ocean acidity. Fewer microorganisms means less microalgae, less phytoplankton, and therefore deterioration of the food chain and weakening of fisheries. Adverse effects in the Arctic region and Greenland may also have social and economic consequences. It’s all about the climate now. Resulting in negative effects on socio-economic and other natural systems“, he assessed.

Sharing his prediction that temperatures in Antarctica will be above long-term averages in the coming weeks, Türkeş concluded his remarks by warning that the glaciers in the polar regions, which are an important factor of balance in the world, are under threat. :

Unfortunately, in nature, the system can never recover in a year because what happened is the result of a few years. Several consecutive years of relatively cold and wet conditions are required for Greenland and the Arctic region to spatially and volumetrically recover sea ice mass losses. lands and seas in recent years and heat waves this year in the west and these regions. It appears that for some time these regions will be much warmer than the long-term averages. This is bad news.

Source: Cumhuriyet

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