China News Service, Beijing, September 11 (Reporter Ruan Yulin) The latest news of the "Xuelong 2", at 13:00 on September 8, 2020, Beijing time, the "Xuelong 2" that carried out China's 11th Arctic scientific expedition, passed After nearly 4 hours of fighting, using the gravity piston sampler, the columnar sediment core sample was successfully obtained at a water depth of 1870 meters in the Northwind Basin of the Arctic Ocean at 18.65 meters, setting a new record for China's Arctic scientific research.
According to Liu Yanguang, assistant chief scientist of the expedition team and researcher of the First Institute of Oceanography, Ministry of Natural Resources, this is the first time that China has used a long cylindrical gravity piston of more than 20 meters for sampling in the Arctic Ocean. The "Xuelong 2" is equipped with advanced scientific research equipment. And superior maneuverability is the key to the success of this sampling.
With the further analysis and research of the samples, it can provide scientific support for in-depth study of the process and mechanism of Arctic sea ice and ice cover change, the evolution of Arctic Ocean circulation, and the exchange with the North Atlantic and North Pacific water masses.
On July 15, 2020, China's 11th Arctic Science Expedition Team set off from Shanghai on the "Snow Dragon 2" to embark on an Arctic scientific expedition trip.
This is also China's first self-built polar scientific expedition icebreaker "Xuelong 2", and it is the first to undertake the Arctic scientific expedition.
According to reports, China’s 11th Arctic Scientific Expedition was organized and implemented by the Ministry of Natural Resources. It mainly focused on responding to global climate change, comprehensive Arctic environmental surveys, and the establishment of an Arctic operational observation and monitoring system. It was conducted in the Chukchi Sea Platform, the Canadian Basin and the Arctic Ocean. Central area and other Arctic high seas, by navigating observations, comprehensive cross-sectional surveys, and ice station surveys, focus on the comprehensive survey of the Arctic Ocean central area, the Arctic Ocean biodiversity and ecosystem survey, the Arctic Ocean ocean acidification monitoring and chemical environment survey, new pollution Survey missions such as the observation of the physical monitoring and the observation of the Arctic Ocean sea-ice-air interaction
According to the arrangement, the expedition has a planned voyage of 12,000 nautical miles and is expected to return to Shanghai in late September this year.
(Finish)