第42次南极考察｜“雪龙”号完成大洋考察作业

Core Viewpoint - The 42nd Antarctic Expedition by China, conducted by the "Snow Dragon" research vessel, successfully completed its ocean survey tasks, focusing on various multidisciplinary investigations in the Amundsen Sea and Ross Sea, including marine biology and environmental studies [1][2]. Group 1: Ocean Survey Achievements - The "Snow Dragon" team conducted comprehensive investigations on hydrological environment, marine biology, marine chemistry, and atmospheric environment, while also studying penguin habitats [1]. - From January 24 to February 19, the team overcame adverse weather conditions to carry out ocean surveys, emphasizing key elements of the marine ecosystem [1]. - A total of 4 ecological buoys were successfully recovered and deployed, along with a rich collection of biological samples including krill, midwater fish, and benthic organisms, providing scientific references for understanding the nutrient structure and population trends of key species in the surveyed areas [1]. Group 2: Technological Innovations - New technologies and equipment were utilized during the operations, including domestically developed acoustic and optical detection modules on the polar ecological buoys for long-term observations beneath the ice [2]. - An improved design of the krill trawl net significantly increased catch volume and facilitated the understanding of krill distribution across different water layers [2]. Group 3: Future Plans - Following the completion of the current mission, the "Snow Dragon" team will head to Hobart, Australia, before returning to China, while the vessel will proceed to Zhongshan Station for subsequent tasks [2]. - The 42nd Antarctic Expedition is organized by the Ministry of Natural Resources and is a crucial part of China's long-term monitoring and scientific research efforts in Antarctica, contributing to studies on climate change and ecological environments [2].