SIO 219: Observational Oceanography Seminar

Fall Quarter 2009:

Topic:What Observationalists Need to Know About Modeling and Assimilation

Instructors: Bruce Cornuelle, Julie McClean, Matt Mazloff, Sarah Gille
Location: OAR Conference Room.
Time: Fridays, 12:00-1:00

Additional references that may be of interest.





25 Sep
Organizational meeting
Julie McClean, Matt Mazloff, Bruce Cornuelle

2 Oct
Z-coordinate models
Marina Frants
Brachet, S., P. Y. Le Traon, and C. Le Provost, 2004. Mesoscale variability from a high-resolution model and from altimeter data in the North Atlantic Ocean, J. Geophys. Res., 109, C12025, doi:10.1029/2004JC002360.

See also:
Semtner, A. J., 1986. Finite-difference formulation of a world ocean model, Proceedings of the NATO Advanced Physical Oceanographic Numerical Modelling, Reidel, Dordrecht, ed. J. J. O'Brien.

Semtner, A. J., 1997. Introduction to "A Numerical Method for the Study of the Circulation of the World Ocean", J. Computational Phys., 135, 149-153.

Bryan, K., 1997. A Numerical Method for the Study of the Circulation of the World Ocean, J. Computational Phys., 135, 154-169 (reprint of 1969 paper).

Smith, R. D. and P. R. Gent, 2004. Anisotropic Gent-McWilliams parameterization for ocean models. J. Phys. Oceanogr., 34, 2541-2564.
9 Oct
Sigma-coordinate models
Dian Putrasahan
Di Lorenzo, E, 2003. Seasonal dynamics of the surface circulation in the Southern California Current System, Deep-Sea Res. Part II, 50, 14-16, 2371-2388.

See also:
Haidvogel, D. B., H. Arango, W.P. Budgell, B.D. Cornuelle, E. Curchitser, E. Di Lorenzo, K. Fennel, W.R. Geyer, A.J. Hermann, L. Lanerolle, J. Levin, J.C. McWilliams, A.J. Miller, A.M. Moore, T.M. Powell, A.F. Shchepetkin, C.R. Sherwood, R.P. Signell, J.C. Warner, J. Wilkin, 2008. Ocean forecasting in terrain-following coordinates: Formulation and skill assessment of the Regional Ocean Modeling System. J. Computational Physics, 227, 3595-3624.
16 Oct
Hybrid-coordinate models
Yvonne Firing
Kelly, K. A., L. Thompson, W. Cheng, E. J. Metzger: 2007. Evaluation of HYCOM in the Kuroshio Extension region using new metrics, J. Geophys. Res., 112, C01004, doi:10.1029/2006JC003614.

See also:
Chassignet, E. P., L. T. Smith, G.R. Halliwell, and R. Bleck, 2003. North Atlantic Simulations with the Hybrid Coordinate Ocean Model (HYCOM): Impact of the vertical coordinate choice reference pressure, and thermobaricity. J. Phys. Oceanogr., 33, 2504-2526.
23 Oct
Matching Models to Data 1 (SODA and SODA POP)
Xue Fan and Kaushik Srinivasan
Carton. J. A., G. Chepurin, X. Cao, and B. Giese, 2000. A Simple Ocean Data Assimilation Analysis of the Global Upper Ocean 1950-95. Part I: Methodology, J. Phys. Oceanogr., 30, 294-309.

See also:
Carton, J. A., and B. S. Giese, 2008. A reanalysis of ocean climate using Simple Ocean Data Assimilation (SODA), Mon. Wea. Rev., 136, 2999-3017.
30 Oct
Matching Models to Data 2 (Kalman Filters)
Gordy Stephenson and San Nguyen
Fukumori, I., R. Raghunath, L.-L. Fu, and Y. Chao, 1999. Assimilation of TOPEX/Poseidon altimeter data into a global ocean circulation model: How good are the results?, J. Geophys. Res., 104(C11), 25,647-25,665.

See also:
C. L. Keppenne, M. M. Rienecker, 2003. Assimilation of temperature into an isopycnal ocean general circulation model using a parallel ensemble Kalman filter, J. Marine Systems, 40-41, The Use of Data Assimilation in Coupled Hydrodynamic, Ecological and Bio-geo-chemical Models of the Ocean. Selected papers from the 33rd International Liege Colloquium on Ocean Dynamics, held in Liege, Belgium on May 7-11th, 2001., April 2003, Pages 363-380, ISSN 0924-7963, DOI: 10.1016/S0924-7963(03)00025-3.

Cane, M. A., A. Kaplan, R. N. Miller, B. Tang, E. C. Hackert, and A. J. Busalacchi, 1996. Mapping tropical Pacific sea level: Data assimilation via a reduced state space Kalman filter, J. Geophys. Res., 101(C10), 22,599-22,617. (Note AGU scanned version has a missing page, available here.
6 Nov
Adjoint Example 1 (Sensitivity) Oliver Sun
Marotzke, J., R. Giering, Q. K. Zhang, D. Stammer, C. N. Hill and T. Lee, 1999. Construction of the adjoint MIT ocean general circulation model and application to Atlantic heat transport sensitivity, J. Geophys. Res., 104, 29,529 - 29,548.
13 Nov
Adjoint Example 2 (Water Mass Concentrations)
Donata Giglio

Chhak, K., and E. Di Lorenzo, 2007. Decadal variations in the California Current upwelling cells, Geophys. Res. Lett., 34, L14604, doi:10.1029/2007GL030203.

See also:
Di Lorenzo, E., A. M. Moore, H. G. Arango, B. D. Cornuelle, A. J. Miller, B. Powell, B. S. Chua, A. F. Bennett, 2007. Weak and strong constraint data assimilation in the inverse Regional Ocean Modeling System (ROMS): Development and application for a baroclinic coastal upwelling system, Ocean Modelling, 16, 160-187, ISSN 1463-5003, DOI: 10.1016/j.ocemod.2006.08.002.

Fukumori, I., T. Lee, B. Cheng, and D. Menemenlis, 2004. The Origin, Pathway, and Destination of Niño Water Estimated by a Simulated Passive Tracer and Its Adjoint. J. Phys. Oceanogr., 34, 582-604.

Primeau, F., 2005. Characterizing transport between the surface mixed layer and the ocean interior with a forward and adjoint global ocean transport model. J. Phys. Oceanogr, 35, 545-564. doi: 10.1175/JPO2699.1
20 Nov
Global state estimation by ECCO: "strong constraint" 4DVAR
Robert Todd
Wunsch, C. and P. Heimbach, 2007. Practical global ocean state estimation. Physica D, 230(1-2), 197-208, doi:10.1016/j.physd.2006.09.040. Focus on sections 1-3.

Stammer, D., C. Wunsch, R. Giering, C. Eckert, P. Heimbach, J. Marotzke, A. Adcroft, C.N. Hill and J. Marshall, 2002. The global ocean circulation during 1992 --1997, estimated from ocean observations and a general circulation model. J. Geophys. Res., 107, C9 3118, doi:10.1029/2001JC000888. Focus on sections 1-3.

See also:
Stammer, D., C. Wunsch, R. Giering, C. Eckert, P. Heimbach, J. Marotzke, A. Adcroft, C.N. Hill and J. Marshall, 2003 Volume, heat and freshwater transports of the global ocean circulation 1993 --2000, estimated from a general circulation model constrained by World Ocean Circulation Experiment (WOCE) data, J. Geophys. Res., 108, C1 3007, doi:10.1029/2001JC001115.

Stammer, D., K. Ueyoshi, A. Köhl, W. G. Large, S. A. Josey, and C. Wunsch, 2004 Estimating air-sea fluxes of heat, freshwater, and momentum through global ocean data assimilation, J. Geophys. Res., 109, C05023, doi:10.1029/2003JC002082.

27 Nov
No meeting: Thanksgiving Break

4 Dec
"Weak Constraint" 4DVAR: Allowing model error
Aneesh Subramanian
Bennett, A. F., B. S. Chua, D. E. Harrison, and M. J. McPhaden, 1998. Generalized Inversion of Tropical Atmosphere-Ocean Data and a Coupled Model of the Tropical Pacific. J. Climate, 11, 1768-1792.

See also:
M.G.G. Foreman, G. Sutherland, P.F. Cummins, 2004. M2 tidal dissipation around Vancouver Island: an inverse approach, Continental Shelf Research, 24(18), Recent Developments in Physical Oceanographic Modelling: Part I, 2167-2185, ISSN 0278-4343, DOI: 10.1016/j.csr.2004.07.008.

Egbert, G. D., A. F. Bennett, and M. G. G. Foreman, 1994. TOPEX/POSEIDON tides estimated using a global inverse model, J. Geophys. Res., 99(C12), 24,821-24,852.

The observational seminar meets on Friday from 12:00-1:00 during the academic quarters, in the OAR Conference Room. (We used to meet in Nierenberg Hall 400, until the group grew too big.) The seminar is open to all. It is a forum for informal discussion of current literature on observational aspects of physical oceanography and for presentation of individuals' work in progress. The subject matter for each quarter is determined by the participants, weighted towards the preferences of the enrolled students. Observational oceanography is often most successful when it is grounded in theory and models and when it makes use of a broad range of data products (including historic data and satellite observations in addition to recent in situ measurements). We therefore cast a broad net in considering appropriate topics for the seminar.

Reading each week is chosen to complement the topic. Normally the reading can be downloaded from UCSD's electronic reserves or directly from the journal. Readings that are not available electronically are placed in the NH reading room.

Enrolled students are expected to come prepared to participate in discussions and ask questions based on the reading material.

Sarah Gille (