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The Tansuo 4500 self-contained robot submersible, developed at the Shenyang Institute of Automation, Chinese Academy of Sciences, successfully completed a research project in the Arctic, as part of the 12th Chinese high-latitude expedition. Four research associates studied the Arctic shelf from aboard the expedition icebreaker MV Xue Long 2.

The successful underwater mission by the Tansuo 4500 in the high-latitude Arctic zone helped obtain important statistics for use in conducting additional in-depth research, for comprehending geological processes and studying multiple energy-and-substance exchange cycles near the Mid-Atlantic Ridge.

This data will serve as a solid scientific foundation for actively involving China in Arctic environmental protection projects.

Due to the high density of sea-ice formations near the expedition’s operation zone, researchers developed an innovative method for obtaining soil samples from under the ice.

The method combines acoustic remote control and automatic guidance allowing the robot submersible to cope with certain difficulties caused by rapid ice-floe movements and a limited open-water section linking it with the vessel.

This made it possible to successfully complete several underwater missions in the high-latitude Arctic Ocean zone, covered with dense ice, and to safely return the robot to the icebreaker.

The robot managed to collect high-resolution multi-directional, hydro-dynamic and aero-magnetic data volumes that will form the mainstay of an advanced measuring technology.

This data will help provide insight into the topographical and geo-morphological specifics of the Mid-Atlantic Ridge, its magma and hydro-thermal activity. Until recently, scientists made very little headway in studying these phenomena.

The Chinese Academy of Sciences developed the deep-water Tansuo 4500 submersible under a pilot strategic science and technological project aimed at evaluating substance-and-energy exchanges in the tropical belt of the West Pacific and their influence.

Prior to joining the Arctic scientific expedition, the robot submersible was adapted to the new environment and to high-latitude Arctic navigation. It was also pre-programmed to measure the seabed and to eliminate malfunctions.

Experts also tested the equipment in lakes and seas, so as to effectively prove the system’s reliability.

The BBC presented the television documentary Blue Planet II (Blue planet II), which showed both the breathtaking beauty of the Northern seas and the global threats they face.

Now global attention is focused on the oceans of our planet. The shock of some of the world's most isolated and untouched environments choking on pollution, particularly plastic, highlighted the need for global transformative action.

The world economic conference "ocean Action Agenda" is one of the practical examples of high-level global cooperation. In order for this initiative to maximize its potential, special attention should be paid to the Arctic marine environment.

While our planet has five oceans - the Atlantic, Pacific, Indian, Arctic and southern (Antarctic) - it is the Arctic ocean that is most vulnerable to climate change. In fact, these changes are happening before our eyes; we have already lost more than half of the Arctic summer sea ice.

There are four reasons why the Arctic ocean is different from other oceans and is critical to the survival of our planet.

First, while this relatively small (by ocean standards) marine environment accounts for only 1% of the world's oceans and only 3% of the world's oceans, its impact on the global climate system is disproportionately large.

Second, although small in area, it receives more than 10% of the world's river flow, and 20 of the 100 longest rivers in the world flow into it.

Third, the Arctic marine domain occupies about a third of the world's coastline.

And fourthly, the Arctic ocean contains a quarter of the world's continental shelf, which is of great social and environmental importance.

In all respects, the small Arctic ocean is kept in the top on the world stage.

It is different from other oceans and is a major factor in the global ocean pipeline. For example, the Gulf stream and the North Atlantic current are strictly regulated by the processes taking place in the Arctic. The Arctic ocean is far away to many of us, but its influence is felt everywhere.

The processes taking place in the Arctic play a vital role in connecting the Pacific and the Atlantic. The legendary Northwest passage is not just a destination for explorers and commercial ships; the Arctic is an Oceanographic chain that links and influences other marine regions and the global climate system.

Changes in global temperature have had a highly visible impact on the Arctic ocean. In the last two decades alone, summer sea ice coverage in the Arctic ocean has decreased by about seven million square kilometres to just over 3 million square kilometres. This loss represents almost the total area of all countries in the world.

Ocean waters are becoming more acidic, and oxygen concentrations have fallen by almost 8% in the last 50 years alone.


 

Source: https://vistanews.ru/redaktor/284612