Langmuir mixing schemes based on the K-profile parameterization
编号:1129 访问权限:仅限参会人 更新:2025-01-04 15:42:14 浏览:174次 口头报告

报告开始:2025年01月15日 16:20(Asia/Shanghai)

报告时间:15min

所在会场:[S39] Session 39-Ocean Boundary Layer Turbulence: Dynamics and Its Impact on the Earth System [S39-1] Ocean Boundary Layer Turbulence: Dynamics and Its Impact on the Earth System

暂无文件

摘要

Langmuir turbulence, prevalent in the ocean surface boundary layer, induces significant vertical mixing, influencing temperature, salinity, mixed layer depth, and the distribution of biogeochemical tracers. However, resolving Langmuir turbulence in ocean and climate models is not feasible; thus, its mixing effects are typically parameterized, often within an existing turbulent mixing framework such as the K-profile parameterization (KPP). Here, we propose a novel scheme for Langmuir mixing effects within the KPP framework. Unlike the original KPP, which determines boundary layer depth using the bulk Richardson number, the KPP adopted here employs an alternative integral criterion to define boundary layer depth. This integral-criterion KPP exhibits markedly reduced sensitivity to model vertical resolution compared to the original KPP. We compare the performance of this new Langmuir mixing scheme with previous schemes using a 1D model across five distinct scenarios, including large eddy simulation (LES) results and field observations. The comparisons demonstrate that the new Langmuir mixing scheme, tailored for the integral-criterion KPP framework, overall outperforms previous schemes while retaining reduced sensitivity to vertical resolution.

关键词
Langmuir turbulence, KPP, Langmuir mixing
报告人
Peng Wang
Associate Professor Sun Yat-sen University

稿件作者
Peng Wang Sun Yat-sen University
发表评论
验证码 看不清楚,更换一张
全部评论
重要日期
  • 会议日期

    01月13日

    2025

    01月17日

    2025

  • 09月27日 2024

    初稿截稿日期

  • 01月17日 2025

    注册截止日期

主办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
承办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
Department of Earth Sciences, National Natural Science Foundation of China
联系方式
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询