https://safirsoft.com New observations suggest that Arctic buildings may be in trouble

Researchers have a more precise way of looking at how the Arctic developed.

As the world warms, countries in the Arctic are increasingly looking to the region for development and use. As Ars reported last July, the cold Arctic may be open to more transportation because it remains ice-free for longer periods under climate change.

However, policymakers and scientists need better tools to understand the extent of human use of the Arctic and the future that awaits roads, settlements, and other developments in the region. New research claims to provide a more accurate way of looking at how human use is changing in the Arctic. Weak Arctic infrastructure He said OpenStreetMap in the Arctic is "incomplete and incompatible" and previous research has acknowledged its use has its limits.

This new effort uses machine learning. Previously less used satellite data (among other data). collectibles), and the hours of human labor for their methods and insights. What Bart says is a better picture of human infrastructure in one of the coldest parts of the world. It focuses primarily on coastal regions - because many Arctic communities are close to the ocean - but also inland.

“We wanted to create something that was 'as compatible as possible,'" said Bartsch Ars.

Hi-res

A few years ago, high-resolution satellite imagery was made available from During the European Space Agency and accessed by Bartsch and his team.Be the basis of modern research.The resolution of these images is 10m, which is higher than the 30m resolution previously available via the Landsat program.This may not seem like a big difference, but it could make a lot of sense when Measure buildings and roads.

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Capture anything but 10 meters away, it's all fun. The team used machine learning to determine which feature they could do — a process that took several years, a year or two after developing Algorithms. Because of the research paper, the team also combined other relevant data such as global temperature trends, permanent freezing levels, vegetation change, and more. The researchers also put a human eye on the results as a form of quality control. In addition to this, he said: Providing a new way to monitor human land use in the Arctic, this research also provides such insights Interesting little about how we got there." We spoiled the shows. . By studying changes in vegetation cover - and assuming that the decline of vegetation cover in some areas is linked to human activities - the team generalized the extent of humanity's spread on Earth. At least 15 percent (about 180 square kilometres) of progress since 2000 is new.

Since Toronto has an area of ​​more than 600 square kilometers, it might not seem like much - but so does the North Pole. it's hard . In addition to making things, Bart noted, the estimate is probably conservative because vegetation is so rare in the Arctic highlands. Additionally, only about 4 million people live throughout the Arctic, compared to about 3 million in Toronto (not the region).

According to research, a lot of spread occurred in Russia. But the United States and Canada are also high. In addition, 31% of the oil and gas extraction area has been developed since 2000. For mining, the figure is 5 percent.

One of the clearest findings of this paper shows that by 2050, 55 percent of Arctic development will fall in areas where permafrost disappears above two metres. may remain deeper). To achieve this, the researchers extracted temperature trends from the past 20 years and generalized them to the future.

According to Bartsch, this disappearance could pose a threat to the area's roads and buildings. Because they are often made to special specifications that may not exist due to the high temperatures and soils of the Arctic. These changes may cause structural damage to buildings and roads in the area.

Environment. Precision. 2021. DOI: 10.1088/1748-9326/ac3176 (about DOI)

New observations suggest that Arctic buildings may be in trouble
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