中山大学Chengyan LIU团队研究了区域海洋-海冰-冰架耦合模型中罗斯海大陆架热量收支的季节性。该研究于2025年4月10日发表在《大气科学进展》杂志上。

罗斯海陆架水团热含量（HC）对罗斯海陆架环流和基底融化起着重要的调节作用。然而，由于观测较少，人们对罗斯海大陆架HC的演变尚不清楚。采用罗斯海区域海-海-冰架耦合模式，研究组分析了大陆架和RIS空腔水团的热收支。根据地形特征和HC密度，将大陆架区域划分为17个子域。分析了各子域的中间层热收支。

此外，首次对RIS腔体的热收支进行了评估。由于修正的环极深水intrthemion，东部陆架的水团比西部陆架的水团温暖，其中西南陆架的水最冷。水平热通量主要向大陆架提供热量，而大气强迫倾向于在融冰期使海洋升温，在结冰期使海洋降温。垂直热通量一般是向上的，并将热量从深层输送到上层。在RIS空腔中，HC的季节循环主要由穿越RIS锋的水平通量主导，而不是由RIS的基底热强迫主导。

附：英文原文

Title: The Seasonality of the Heat Budget on the Ross Sea Continental Shelf in a Coupled Regional Ocean-Sea Ice-Ice Shelf Model

Author: Jiabao Zeng, Chengyan LIU, Zhaomin Wang, Liangjun Yan, Yang Liu, Yue Xia, Xi Liang, Xiang LI, Wen Xu

Issue&Volume: 2025-04-10

Abstract: The Heat Content (HC) of water masses on the Ross Sea continental shelf plays an important role in regulating the circulations and the basal melting of the Ross Ice Shelf (RIS). Yet, the evolution of the HC on the Ross Sea continental shelf is still not clear due to the sparsity of observation. By employing a coupled regional ocean-sea ice-ice shelf model for the Ross Sea, this study analyzes the heat budget of water masses over the continental shelf and in the RIS cavity. According to the topographic features and the HC density, the continental shelf region has been divided into seventeen subdomains. The heat budget of the middle layer for every subdomain has been analyzed. In addition, the heat budget for the RIS cavity is assessed for the first time. Owing to Modified Circumpolar Deep Water intrusion, water masses over the eastern shelf are warmer than over the western shelf, with the coldest water identified in the southwestern inner shelf. The horizontal heat flux mainly provides heat to the continental shelf, while the atmospheric forcing tends to warm up the ocean during the ice-melting period and cool down the ocean during the ice-freezing period. The vertical heat flux is generally upward and transports heat from the deep layer to the upper layer. In the RIS cavity, the seasonal cycle of the HC is dominated by the horizontal flux across the RIS front rather than the basal thermal forcing of the RIS.

DOI: 10.1007/s00376-025-4391-z

Source: http://www.iapjournals.ac.cn/aas/article/doi/10.1007/s00376-025-4391-z