THEORY SEMINAR FALL 2016

SIO 219, 1 unit S/U
Professor Paola Cessi
pcessi at ucsd.edu
Phone: 858 534 0622
Office: Keck room 366 - this is on the 3rd floor of Keck, south-west corner.

Meetings Friday 3:30pm, Keck Conference Room

Description The theme of the theory seminar this quarter is "Transformed Eulerian Mean/ Residual mean theory with applications to the dynamics of the Antarctic Circumpolar Current". There'll be a mixture of research seminars and student-led presentations of key papers. Students are encouraged to register for the class, and participation by interested post-docs and faculty is very welcome.

Course Requirements Students should register as S/U. Registered students will be expected to present at least one paper during the quarter and participate in the discussion each week.

The reading list below is under development. Participants are encouraged to suggest papers that they like to read and discuss.

READING LIST

1a. Vallis, G.K. Atmospheric and Oceanic Fluid Dynamics (2nd edition). Chapter 4: Waves, Mean Flows and their Interaction. Preprint.

1b. Andrews, D.G., Holton, J.R., Leovy C.B. Middle Atmosphere Dynamics. Chapter 3: Basic Dynamics. Academic Press.

1c. Buhler, O. 2014. A gentle stroll through EP flux theory. European Journal of Mechanics B/Fluids 47 (2014) 12–15.

2. Young, W.R. 2012. An Exact Thickness-Weighted Average Formulation of the Boussinesq Equations. J. Phys. Oceanogr., 42, 692-707.

3. Salmon, R. 2016. Variational treatment of inertia-gravity waves interacting with a quasigeostrophic mean flow. J. Fluid Mech., sub judice.

4a. Gent, P.R. and Mcwilliams, J.C., 1990. Isopycnal mixing in ocean circulation models. J. Phys. Oceanogr., 20, pp.150-155.

4b. Griffies, S.M. 1998. The Gent-McWilliams Skew Flux. J. Phys. Oceanogr., 28, 831-841.

5a. Marshall, J. and Radko, T., 2003. Residual-Mean Solutions for the Antarctic Circumpolar Current and Its Associated Overturning Circulation. J. Phys. Oceanogr., 33, 2341-2354.

5b. Karsten, R.H. and Marshall, J., 2002. Constructing the residual circulation of the ACC from observations. Journal of physical oceanography, 32, 3315-3327.

6a. Radko, T. and Marshall, J., 2006. The Antarctic Circumpolar Current in three dimensions. J. Phys. Oceanogr., 36, 651–669.

6b. Thompson, A. F., A. L. Stewart, and T. Bischoff, 2016: A Multibasin Residual-Mean Model for the Global Overturning Circulation. J. Phys. Oceanogr., 46, 2583–2604.

7a. Gnanadesikan, A., 1999. A simple predictive model for the structure of the oceanic pycnocline. Science, 283(5410), 2077-2079.

7b. Nikurashin, M. and Vallis, G., 2012. A theory of the interhemispheric meridional overturning circulation and associated stratification. Journal of Physical Oceanography, 42, 1652-1667.

8a. Meredith, M. P. A. C. Naveira Garabato, A. McC. Hogg, and R. Farneti, 2012: Sensitivity of the Overturning Circulation in the Southern Ocean to Decadal Changes in Wind Forcing. J. Climate, 25, 99–110.

8b. Morrison, A.K. and Hogg, A.M., 2013. On the Relationship between Southern Ocean Overturning and ACC Transport, 43, 140-148.

SCHEDULE

• September 23, 2016: Organizational meeting.

• September 30, 2016: Paul Chamberlain: Introduction to wave-meanflow interactions, Transformed Eulerian Mean and Residual Mean theory. Primary reading is paper 1a, secondary reading is paper 1b, especially sections 3.3-3.5. Paul Chamberlain's presentation.

• October 7, 2015: Spencer Jones: Thickness-Weighted Average. Primary reading is paper 2. Spencer Jones' presentation.

• October 14, 2016: Rick Salmon: Variational treatment of inertia-gravity waves interacting with a quasigeostrophic mean flow. Primary reading is paper 3. Rick Salmon's presentation.

• October 21, 2016: Cesar Rocha: The Gent-McWilliams parametrization of eddy buoyancy fluxes. Primary reading is paper 4a, secondary reading is paper 4b. Cesar Rocha's presentation.

• October 28, 2016: Shangtong Sun: Two-dimensional residual mean theory in the ACC. Primary reading is paper 5a, secondary reading is paper 5b. Shangtong Sun's presentation.

• November 4, 2016: Veronica Tamsitt: Three-dimensional residual mean theory in the ACC: connection between the Atlantic and the Indo-Pacific. Primary reading is paper 6a, secondary reading is paper 6b. Veronica Tamsitt's presentation.

• November 11, 2016: Veterans Day holiday.

• November 18, 2016: Manuel Gutierrez-Villanueva: Theories of the global deep stratification and MOC: Papers 7a and 7b. Manuel Othon Gutierrez Villanueva's presentation.

• November 25, 2016: Thanksgiving holiday.

• December 2, 2016: Navid Constantinou: Saturation and compensation in the ACC. Primary paper is 8a, secondary paper is 8b. Navid Constantinou's presentation.