海洋表层温度剖面数值模拟

doi:10.11978/j.issn.1009-5470.2014.06.005

热带海洋学报 ›› 2014, Vol. 33 ›› Issue (6): 31-40.doi: 10.11978/j.issn.1009-5470.2014.06.005cstr: 32234.14.j.issn.1009-5470.2014.06.005

海洋表层温度剖面数值模拟

张扬^1,2, 孙志林³, 张欣⁴

1.浙江大学建筑工程学院, 浙江杭州310058;2.上海海洋大学海洋科学学院, 上海201306;3.浙江大学海洋科学与工程学系, 浙江杭州310058;4.加利福尼亚大学圣迭戈分校斯克里普斯海洋研究所, 美国加利福尼亚拉霍亚92037

收稿日期:2013-03-25 修回日期:2013-08-28 出版日期:2015-01-07 发布日期:2015-01-07
作者简介:张扬(1985~), 男, 浙江省杭州市人, 博士, 主要研究方向为海表温盐剖面、海气交换。E-mail: jasonnety@gmail.com
基金资助:
国家自然科学基金资助项目(40776007)

A numerical simulation of near-surface ocean temperature

ZHANG Yang^{1, 2}, SUN Zhi-lin³, ZHANG Xin⁴

1. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China; 2. College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; 3. Department of Ocean Science and Engineering, Zhejiang University, Hangzhou 310058, China; 4. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, 92037, USA

Received:2013-03-25 Revised:2013-08-28 Online:2015-01-07 Published:2015-01-07

摘要/Abstract

摘要： 遥感测量海水表面温度(SST)需用海表面以下实测温度资料加以校正, 由于长时间大范围进行海洋表层海水垂向温度剖面野外观测非常困难, 建立经有限资料验证的数值模型十分重要。文章基于美国加利福尼亚湾3组船载光学实验的气象及海温资料, 考虑太阳热辐射作用与海表面冷温层效应, 建立了一个海表下20m深度范围内水温剖面演变的数值模型。通过冷温层计算合理加密了表层网格, 使数值模型更准确地估计海表散热作用。计算结果与野外实测海温资料对比显示, 海表剖面测试仪(SkinDeEP)未能准确定位和捕捉海表冷温层, 实验方法有待改进。整合模型能准确描述海温剖面的演变趋势, 在近海表20cm深度内, 特别是与遥感SST相关的近海表1cm深度内, 模拟结果优于无本皮肤层模型的计算结果。

关键词: 海水温度剖面, 数值模拟, 冷温层效应, 遥感海温

Abstract: The vertical water temperature profile in the upper few meters of the ocean is essential for calibrating the sea surface temperature (SST) from remotely sensed surface radiation fields. Also, a reliable way to predict the sea water temperature profiles is necessary for many oceanographic applications, since high temporal and spatial coverage of surface profile observations are impractical. Based on several full sets of meteorological data and observed near-surface ocean temperature, measured in the Gulf of California during the Marine Optical Characterization Experiment (MOCE-5), a numerical model is made to simulate the vertical temperature profiles for the upper 20 meters of the ocean, considering both the sun’s radiation and the cool skin effects. The simulated cool skin thickness can refine meshes near sea surface, because of which, the model can better estimate the sea surface cooling effect. Comparing the simulation results and observed data, the result shows that SkinDeEP didn’t catch the cool skin layer, and the experiment method needs to be refined. The computation results are in reasonable agreement with the observed vertical temperature profiles in the ocean, and better simulation within the top 20 cm especially 1 cm is made by the model with Xin-Yang cool skin layer model.

Key words: sea water temperature profile, numerical simulation, cool skin effect, sea surface temperature remote sensing

中图分类号:

P731.11

张扬, 孙志林, 张欣. 海洋表层温度剖面数值模拟[J]. 热带海洋学报, 2014, 33(6): 31-40.

ZHANG Yang, SUN Zhi-lin, ZHANG Xin. A numerical simulation of near-surface ocean temperature[J]. Journal of Tropical Oceanography, 2014, 33(6): 31-40.

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海洋表层温度剖面数值模拟

A numerical simulation of near-surface ocean temperature

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