SCHEDULE: October

Filed under FALL Term 2008 - Schedule by Sack Lunch Staff |

October 1st

Anne Willem OMTA

Faculty of Earth and Life Sciences, Amsterdam, NL
Critical turbulence revisted: The impact of submesoscale vertical mixing on phytoplankton patchiness

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ABSTRACT: This is purely theoretical (simulation) work, in which I have looked at phytoplankton distributions in a submesoscale baroclinically unstable eddy under different light conditions. It turns out that the plankton patterns are very different, if the plankton is light-limited than if the plankton is nutrient-limited which can be understood with a variant of Jef Huisman’s critical turbulence concept.
Omta et al., J. Mar. Res. 66, 61-85 (2008)
October 8th

Carl WUNSCH

MIT-EAPS

Altimetric spectra, trends, and low frequency ocean variability

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ABSTRACT: Evaluation of the significance of apparent long-term trends in the ocean circulation and sea level, as well as the testing of the skill of time-varying models,  requires a description of the background variability. As a step toward that end, the longest available truly global records (15 years of satellite altimetry plus fragmentary other bits) are examined in an effort to generalize about oceanic behavior below one cycle/year.
October 15th

John MARSHALL

MIT-EAPS

Using dynamics to interpret satellite altimetric observations, and visa-versa.

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ABSTRACT: In this talk I will use inferences from text-book dynamics (the theory of linear Rossby waves, baroclinic instability and geostrophic turbulence) to discuss two topics inspired by satellite observations, and the connection between them:
(i) The interpretation of the propagation of surface altimetric observations in terms of linear planetary waves and geostrophic turbulence
(ii) The geography of eddy stirring and mixing in the southern ocean: altimetric evidence for enhanced mixing at critical levels.
October 22nd

Anthony KIRINCICH

WHOI

Calculating Reynolds stresses from ADCP measurements in the presence of surface gravity waves using the cospectra-fit method.
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ABSTRACT: TBA
October 29th

Shekeela BAKER

MIT-EAPS

On the Structure of Agulhas Eddies
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ABSTRACT: TBA

To get to building 54 follow the directions to MIT and campus map. For more information, contact the organizers.