From August 12 to 19, 2023, Shi Jiuxin and Sun Yongming from the School of Oceanography and Atmospheric Sciences of Ocean University of China were invited by the organizers to represent Ocean University of China to Australia to participate in the SOOS Symposium 2023 held in Hobart, Tasmania. This conference aims to deepen understanding of the Southern Ocean climate system, explore the mechanisms behind current changes, and provide support for future scientific research and policy development. During the meeting, the two teachers actively participated in various activities, had in-depth exchanges, and shared the latest achievements and experiences of Ocean University of China in the observation of the Southern Ocean.
The theme of this conference is Southern Ocean in a Changing World, which fully reflects the severe challenges facing the Southern Ocean. As an important part of the global climate system, the Southern Ocean plays a key role in controlling ocean heat and carbon absorption. However, as climate change intensifies, the Southern Ocean is experiencing unprecedented changes, including record-breaking sea ice extent, frequent extreme heat events, and profound changes in ecosystems. This change has far-reaching implications for global climate and human society, making it particularly urgent to establish a continuous and coordinated Southern Ocean observing system.
The conference focused on the latest scientific research achievements of Southern Ocean observation, the innovation and development trend of observation technology, and how to deal with the challenges brought about by environmental changes in the Southern Ocean. The participants included experts and scholars from scientific research institutions, observation centers, universities and research institutions from all over the world, and they had in-depth discussions and exchanges on their respective research fields and topics.
Shi Jiuxin and Sun Yongming reported to international counterparts the latest research results of Ocean University of China in the observation of the Southern Ocean. Shi Jiuxin's report is titled Spatio-temporal variations and impact factors of the Amundsen Polynya, Antarctica, and this study reveals the spatio-temporal variations and influencing factors of the Amundsen Interglacial Lake, and by analyzing the satellite microwave radiometer data, it is found that the area and ice production of the Amundsen Interglacial Lake are significantly correlated with the wind direction of the Amundsen area. The easterly component affects the area of the interglacial lake by regulating sea ice transport, while the southerly component enhances heat loss, leading to increased ice production. In addition, the influence of cyclone passage on the evolution of interglacial lakes was observed. These efforts provide new insights into a better understanding of polar interglacial lakes.
孙永明的报告题目为“Observing and modeling circulations in Prydz Bay, Antarctica”，本研究揭示了普里兹湾复杂的环流结构，并通过数值模拟研究了冰山对湾内环流的影响。本研究通过声学多普勒流速计的现场观测数据和区域海洋模型系统（ROMS）的数值模拟结果，发现湾内存在两个流入口，普里兹湾的主要环流结构包括南极沿岸流、普里兹湾东部沿岸流和普里兹湾环流。本研究还证明搁浅的大冰山会对湾内环流产生重要影响，这些工作为更好地理解南极海洋动力过程提供了重要依据。
By participating in this seminar, Mr. Shi Jiuxin and Mr. Sun Yongming not only deepened their understanding of the Southern Ocean climate system, but also expanded their cooperation network with international counterparts. The reports of the two teachers showcased the latest achievements of Ocean University of China in the observation of the Southern Ocean and provided relevant research progress to the global scientific community. The research report shared by the two teachers at the conference has enhanced our country's influence in the field of Southern Ocean observation, and has been recognized and appreciated by other participants. In addition, the two teachers also had in-depth exchanges and cooperation with other delegates, promoting the coordination and cooperation of the Southern Ocean Observation Program.
