报告详情
Assessment of Antarctic Bottom Water in Observation, Reanalysis, and CMIP6 Models
编号：145
访问权限：仅限参会人
更新：2025-11-06 17:10:49 浏览：6次
口头报告
报告开始：暂无开始时间（Asia/Shanghai）
报告时间：暂无持续时间
所在会场：[暂无会议] [暂无会议段]
暂无文件
摘要
Antarctic Bottom Water (AABW), a key component of the global meridional overturning circulation, is formed in distinct source regions around Antarctica. However, many studies treat AABW as a homogeneous water mass, potentially overlooking significant regional variations. This study uses a classification scheme to delineate AABW into three subtypes based on their source regions: Weddell Sea-originated AABW (WS-AABW), Ross Sea-originated AABW (RS-AABW), and Adélie Land-originated AABW (ADL-AABW). The definition combines salinity and neutral density, building upon in-situ observations. We then assess the capability of multiple datasets—including World Ocean Atlas 2023 (WOA23), an ensemble ocean reanalysis product (GLOBAL_MULTIYEAR_PHY_ENS_001_031), and outputs from 16 CMIP6 models—to exhibit spatial distribution and properties of these AABW subtypes. The results show that WOA23 provides a climatological representation of all three AABW subtypes. The ensemble reanalysis product also performs well compared to WOA23, albeit with an overestimation of ADL-AABW. Almost all CMIP6 models cannot simulate the three types of AABW, but some models can reflect them after bias correction.
关键词
Antarctic Bottom Water, classification, CMIP6 models.
报告人
Siran Chen
Student Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)；School of Atmospheric Sciences, Sun Yat-sen University稿件作者
全部评论
重要日期
-
会议日期
11月20日
2025
至11月24日
2025
-
11月10日 2025
初稿截稿日期
-
11月24日 2025
注册截止日期
主办单位
太平洋科学协会
承办单位
Shantou University
Xiamen University
Xiamen University
联系方式
- Prof. Ping Li
- ps******@stu.edu.cn
- 86-*********
发表评论