課程資訊
課程名稱
海洋小尺度運動
Small-scale Processes in the Ocean 
開課學期
105-2 
授課對象
理學院  海洋物理組  
授課教師
楊穎堅 
課號
Ocean5103 
課程識別碼
241 U6000 
班次
 
學分
2.0 
全/半年
半年 
必/選修
選修 
上課時間
星期五6,7(13:20~15:10) 
上課地點
115研討室 
備註
與張明輝合開
總人數上限:12人 
Ceiba 課程網頁
http://ceiba.ntu.edu.tw/1052Ocean5103_ 
課程簡介影片
 
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課程概述

Small-scale processes in the ocean are crucial in shaping the oceanic general circulation, ocean’s energy cascade, and mixing and spawn interdisciplinary interactions. The internal waves and flow instability play an important role to draw energy from the large-scale flow to turbulence and is a major mechanism in the production of turbulent mixing in the ocean.

This course will review those important small-scale processes, including internal waves, instability waves and turbulence. Both the theoretical framework and observational results will be provided. The parameterization of those processes to large-scale modeling will be introduced as well.
 

課程目標
Our goal is to improve Students’ understanding to:
(1) Small-scale processes on the basis of theoretical and observational framework,
(2) Their impacts/importance for large-scale circulations.
(3) How the internal waves and instability draw energy from large-scale to turbulent dissipation and mixing
(4) Quantification of turbulent dissipation and mixing in the ocean
(5) Technique and methodology to perform field observation
 
課程要求
無 
預期每週課後學習時數
 
Office Hours
 
指定閱讀
 
參考書目
Benoit Cushman-Roisin and Jean-Marie Beckers, Introduction to Geophysical Fluid Dynamics.
Kundu, P. K. and I. M. Cohen, Fluid Mechanics, 3rd ed., Academic Press, San Diego, CA.

Tennekes H. and J. L. Lumley, A FIRST COURSE IN TURBULENCE., The MIT Press. Cambridge,
Massachusetts, and London, England
 
評量方式
(僅供參考)
 
No.
項目
百分比
說明
1. 
作業 
50% 
 
2. 
課堂表現 
10% 
 
3. 
期末報告 
40% 
 
 
課程進度
週次
日期
單元主題
第1週
2/24  Brief Introduction to instability and turbulence; symmetric instability (static instability and inertial instability) 
第2週
3/03  Barotropic and baroclinic instability 
第3週
3/10  Shear instability: Fundamentals of Kelvin-Helmholtz Instability 
第4週
3/17  Shear Instability: Holmboe mode and secondary Instability 
第5週
3/24  Turbulence transport of momentum 
第6週
3/31  Turbulence transport of momentum 
第7週
4/07  Dynamics of turbulence 
第8週
4/14  Observations of instability and turbulence 
第9週
4/21  期中考 
第10週
4/28  Internal-Wave Theory 
第11週
5/05  海洋年會、調課至5/12、19之15:30~16:20。
K-dV Equation and Solutions 
第12週
5/12  Solutions for 1, 2, and 3 layers
補5/5之1小時的課 
第13週
5/19  DJL Equation and Solution
補5/5之1小時的課 
第14週
5/26  出海調課至5/15、當天張老師補課。
Internal Wave Observations 
第15週
6/02  Internal Wave Data Analysis 
第16週
6/09  出海調課至5/22、當天張老師補課。
Amplitude estimate from Radar Image 
第17週
6/16  Internal Wave Energy Budget 
第18週
6/23  期末報告