During China's 13th Arctic Scientific Expedition: What are the challenges facing 24-hour continuous scientific research? Expedition Team | Science | Arctic Ocean

Release time:Apr 14, 2024 17:25 PM

CCTV News: Yesterday, China's 13th Arctic Scientific Expedition team boarded the "Xuelong 2" polar research icebreaker and conducted operations at the Chukotchi Sea in the Arctic Ocean. CCTV reporters set sail with the ship and recorded the entire process of China's Arctic scientific expedition. So, what are the challenges currently faced by the team members of the Chukchi Sea scientific expedition? Read the report.

What are the key tasks of this Arctic scientific expedition?

The entire process of this scientific examination is about 80 days, and apart from the round-trip travel time, it is expected that there will be more than 40 days to carry out scientific research assignments. What are the key tasks of this Arctic scientific expedition?


During China's 13th Arctic Scientific Expedition: What are the challenges facing 24-hour continuous scientific research? Expedition Team | Science | Arctic Ocean

Wang Jinhui, leader of China's 13th Arctic Scientific Expedition Team: Our Arctic scientific expedition this time focuses on the changes in the ecosystem under the rapid changes in the Arctic, with four key tasks: first, investigating the ecological environment of the Pacific sector of the Central Arctic Ocean and comprehensively investigating sea ice; The second is the geological and geophysical investigation of the Jiake Ridge; The third is some scientific research plans, mainly focusing on research on circulation and sea ice. The fourth is international cooperation.

What are the black technologies for studying aerosols in the Arctic Ocean?

During this scientific examination, various new methods were used to study the polar atmosphere. It is understood that China conducted a LiDAR observation experiment on the aerosol situation in the Arctic Ocean in 2016. With the continuous optimization of radar performance, this year's Arctic scientific expedition began to fully utilize LiDAR to collect data.


During China's 13th Arctic Scientific Expedition: What are the challenges facing 24-hour continuous scientific research? Expedition Team | Science | Arctic Ocean

Chinese 13th Arctic Scientific Expedition Team member Le Fange: This instrument is called aerosol scattering lidar, mainly used to observe the vertical distribution of aerosol concentration from the near surface to 10000 meters in the high altitude, as well as some related physical parameters. This is a real-time generated data graph. It is preliminarily speculated that this may be mainly due to the increase in PM10 aerosol concentration caused by a large amount of sea salt aerosols emitted from the ocean.

What challenges do 24-hour continuous scientific examinations face?

CCTV reporter Wang Nan: The most obvious difficulty in scientific research in the Arctic Ocean is actually the harsh natural conditions. For example, nowadays, the outdoor temperature has dropped to below 0 degrees Celsius, but many work projects need to be carried out on the stern deck of the ship.


During China's 13th Arctic Scientific Expedition: What are the challenges facing 24-hour continuous scientific research? Expedition Team | Science | Arctic Ocean

Liu Kun, a member of the 13th Chinese Arctic Scientific Expedition Team: It will take about two hours. Cold, the seawater is relatively cold, and after coming up, it is around two degrees Celsius, and the temperature of the mud is also about two degrees Celsius.

Multiple operations on floating ice require finding a "pond"

Due to the focus of the homework project on the Chukchi Sea, which mainly focuses on water environment, biological ecology, etc., a large amount of floating ice on the sea surface has also brought considerable difficulties to the scientific research homework.


During China's 13th Arctic Scientific Expedition: What are the challenges facing 24-hour continuous scientific research? Expedition Team | Science | Arctic Ocean

In order to minimize the impact of floating ice, the "Xuelong 2" will use a radar system and visual inspection to find suitable ice water areas for operation, commonly known as "ponds", after sailing to the designated station.

Frequent sea fog and high pressure to prevent bears

In addition, frequent sea fog can bring another major risk to team members, which is polar bears. In addition to installing safe houses and bear cages, the inspection team will also use various means.


During China's 13th Arctic Scientific Expedition: What are the challenges facing 24-hour continuous scientific research? Expedition Team | Science | Arctic Ocean

Wang Jinhui, the leader of the 13th Arctic Scientific Expedition in China: Currently, the main method is through observation, which is to observe whether there are bears in the area where we work from several aspects of the bridge. If there are bears, ask the workers to quickly withdraw. In addition, when encountering low visibility and fog approaching, stop working immediately and withdraw. Thirdly, we will also use drones and some infrared sensors to detect the presence of bears, including helicopters that are also on standby.

Two women were stabbed to death and reported to have committed a crime 4 days before the follow-up visit for schizophrenia. Suspect of a bloody murder case in a Hong Kong shopping mall appeared in court today. Male | Last Friday | Murder case
Two women were stabbed to death and reported to have committed a crime 4 days before the follow-up visit for schizophrenia. Suspect of a bloody murder case in a Hong Kong shopping mall appeared in court today. Male | Last Friday | Murder case

According to Hong Kong's Wen Wei Po, a bloody knife stabbing case occurred at Hollywood Square in Diamond Hill last Friday. The police arrested a 39 year old man on suspicion of stabbing two young women, one of whom was stabbed over 30 times. The suspect appeared in the Kwun Tong Magistrates Court this morning. The police at the Kwun Tong Magistrate's Court temporarily charged the suspect with two counts of murder last Sunday. The suspect appeared in court this morning at the Kwun Tong Magistrate's Court. Acting Chief Magistrate Zheng Jihang, after listening to the opinions of both the prosecution and defense, decided to postpone the hearing for two weeks until 9:30 am on June 19th, waiting for two psychiatric expert reports to be obtained. The defense did not object. Zheng Jihang approved the application, and the defendant needs to be temporarily detained at Xiaolan Mental Hospital. When the suspect appeared in court, he wore black framed glasses, a light gray shirt, and camouflage green shorts, and was able to answer the judge's questions normally. accordingly

Secretary of the Provincial Party Committee: The focus of Henan's "summer harvest" has shifted to agricultural machinery in the northern region of Henan Province. | Support | Science | Organization | Province | Northern Henan | Summer Harvest | Rush Harvest
Secretary of the Provincial Party Committee: The focus of Henan's "summer harvest" has shifted to agricultural machinery in the northern region of Henan Province. | Support | Science | Organization | Province | Northern Henan | Summer Harvest | Rush Harvest

Currently, the highly anticipated summer harvest work in Henan has shifted its focus to the northern region of Henan. According to the Henan Daily client, on June 4th, Lou Yangsheng, Secretary of the Henan Provincial Party Committee, presided over a special video scheduling meeting on the "Three Summers" work in the province, listened to the situation report, analyzed and judged the situation, and arranged and deployed the next steps of work. Governor Wang Kai made specific arrangements. On the evening of May 31, 2023, in Xiafutou Village, Xuliang Town, Boai County, Jiaozuo, Henan Province, villagers braved light rain in the wheat fields to harvest wheat. Visual China Map Lou Yangsheng pointed out that the current summer harvest battle in the province has entered the decisive stage. Doing a good job in summer harvest in northern Henan Province is related to the summer grain yield and seed safety. We should focus on seizing opportunities and make every effort to organize the wheat harvesting work in the northern Henan region, minimize losses, and protect the interests of farmers to the greatest extent possible. Accurate forecasting is essential

Xinhua All Media+| Welcome home! What innovative technologies are protecting the return journey of Shenzhou 15? Spaceship | Shenzhou | Technology
Xinhua All Media+| Welcome home! What innovative technologies are protecting the return journey of Shenzhou 15? Spaceship | Shenzhou | Technology

On June 4th, the return capsule of the Shenzhou-15 manned spacecraft successfully landed at the Dongfeng landing site. Astronauts Fei Junlong, Deng Qingming, and Zhang Lu all safely and smoothly exited the spacecraft, and the Shenzhou-15 manned flight mission was a complete success. What innovative technologies are there to safeguard the return journey of Shenzhou 15 in this mission? On June 4th, the return capsule of the Shenzhou-15 manned spacecraft successfully landed at the Dongfeng landing site. Xinhua News Agency reporter Lian Zhen photographed that "the sky and the ground" ensure the high-precision return of spacecraft. For the Shenzhou series spacecraft, the return and re-entry GNC technology is directly related to the life safety of astronauts. Taking the success of this return mission as a symbol, China has comprehensively upgraded its GNC system since the Shenzhou-12 manned spacecraft, which features autonomous rapid rendezvous and docking, autonomous adaptive prediction and re-entry return guidance, and has completed a comprehensive update and replacement

The Chinese naval fleet has arrived! Assembly | Navy | Chinese Fleet
The Chinese naval fleet has arrived! Assembly | Navy | Chinese Fleet

At noon today, a Chinese naval fleet consisting of Zhanjiang and Xuchang ships arrived at the assembly area of the "Comodo-2023" multinational maritime joint exercise. It is understood that the assembly anchorage for this exercise is 3 nautical miles long and 1.5 nautical miles wide, capable of anchoring up to 50 ships. Naval vessels from various countries participating in the exercise will also arrive at the anchorage today to complete the assembly of the "Komodo 2023" multinational maritime joint exercise, which is held every two years by the Indonesian Navy. This year is already the fourth edition of the exercise. The exercise will be held from June 5th to 8th in the city of Jakarta, South Sulawesi Province, Indonesia, including the port and sea phases. In the coming days, participating navies from various countries will participate in ship reading style search and rescue exercises, maritime interception and damage management exercises, aerial exercises, and other course objectives exercises

New comment: Donkey like "morale" limit pulls US debt "bomb" fuse hard to dismantle US | debt | morale
New comment: Donkey like "morale" limit pulls US debt "bomb" fuse hard to dismantle US | debt | morale

On the evening of June 1st, the US Senate passed a bill on the federal government's debt ceiling and budget, and the flame of the US debt bomb was temporarily extinguished at the last moment. The two parties in the United States have staged an extreme tug of war over the US debt bomb. Some experts believe that the US debt crisis is the result of the reckless politics promoted by the US dollar hegemony, and the underlying cause of this crisis is the highly polarized political system of the US. Since the end of World War II, the US Congress has adjusted the debt ceiling more than a hundred times. The recurring debt crisis will not only have a catastrophic impact on the US economy and people's livelihoods, but also continuously erode the value of US dollar assets such as government credit and US bonds, bringing significant and far-reaching impacts to the global economic landscape. 【