Previous Seminars

Issues and Methods for Modeling Arctic Ship Navigation

Speaker: 
Scott Stephenson
Seminar Date: 
5. December 2011 - 12:30 - 13:00

Resonant diurnal internal tides in the western North Atlantic

Speaker: 
Brian Dushaw
Affiliation: 
Applied Physics Laboratory, Seattle
Seminar Date: 
30. November 2011 - 13:00 - 14:00

There will be presented 3 lectures under the covering title "Measuring mode-1 internal tides by ocean acoustic tomography and satellite altimetry: Towards global predictions of the mode-1 internal tide". The lecturer has a 6 month Fulbright fellowship stay at NERSC.

(Lecture 2) 13:15-14:00

The future of EuroGOOS

Speaker: 
Hans Dahlin
Affiliation: 
Director of EuroGOOS
Seminar Date: 
28. November 2011 - 15:00 - 15:30

Hans Dahlin, the Director of EuroGOOS will give a talk at 1500 at Nansen Center. The content of the talk is: The future of EuroGOOS - are we moving towards a European (Economic) Interest Group (EIG)?. The talk will be for about 35-45 minutes dependent on the number of questions.

Session: How can the seminar series be improved?

Speaker: 
Kjetil Lygre
Seminar Date: 
24. November 2011 - 12:30 - 13:00

Everybody with an interest in the above question is invited to attend this session. When talking to people I find that there are some nuances in the expectations of the purpose of the seminar series, and various suggestions appear from time to time. Now it is time to bring your views forward.

There will be some imposed structure during the session (very simple) - that will be explained. it is based on OpenSpace: http://en.wikipedia.org/wiki/Open-space_technology

Observation of mode-1 internal tides by acoustic tomography

Speaker: 
Brian Dushaw
Affiliation: 
Applied Physics Laboratory, Seattle
Seminar Date: 
23. November 2011 - 13:00 - 14:00

There will be presented 3 lectures under the covering title "Measuring mode-1 internal tides by ocean acoustic tomography and satellite altimetry: Towards global predictions of the mode-1 internal tide". The lecturer has a 6 month Fulbright fellowship stay at NERSC.

(Lecture 1; starts 13:15!)

Workshop on the SEALEV project

Speaker: 
Carl Wunsch et al
Seminar Date: 
16. November 2011 - 12:30 - 14:30

Workshop on the SEALEV project
(Sea Level Change and Ice Sheet Dynamics)

Since Prof. Carl Wunsch will visit Bergen in connection with the Nansen Center’s 25-year Colloquium, a workshop on the SEALEV project will be held on 16 November. This is a very good opportunity to present the main activities in the SEALEV project and have a discussion with Prof. Carl Wunsch , who is a leading expert in sea level change.

The agenda is the following:

1) Introduction to the SEALEV project, by S. Sandven

Joint sun-glitter and radar imagery of surface slicks and IW

Speaker: 
Alexander Myasoedov
Affiliation: 
NIERSC/RSHU, SPb, Russia
Seminar Date: 
10. November 2011 - 12:30 - 13:00

Studying the parameterization of small-scale dynamics in the NorESM using a single column atmospheric model

Speaker: 
Jon Bergh
Seminar Date: 
3. November 2011 - 12:30 - 13:00

Computational capacity limits the spatial and temporal resolution in climate and earth system models and makes it necessary to develop sub-grid scale parameterization. The applied parameterization should be valid within a measurement based parameter range. Using a single column configuration of the Norwegian Earth System Model (NorESM), we are able to examine the parameterization in a systematic and controlled manner.

Trial Lecture: Status and feasibility for interannual to decadal prediction of Atlantic-European climate

Speaker: 
Helene R. Langehaug
Seminar Date: 
27. October 2011 - 13:00 - 14:00

Note that the trial lecture will start 13:15, and not 12:30

The 1960 Perth to Bermuda antipodal acoustic propagation experiment: A measure of a half-century of ocean warming?

Speaker: 
Brian Dushaw
Affiliation: 
NERSC and the Applied Physics Laboratory, University of Washington
Seminar Date: 
20. October 2011 - 12:30 - 13:30

In 1960, the sounds from explosive charges deployed off Perth, Australia were recorded at Bermuda, the antipode to Perth. The acoustic paths traveled by the sound are refracted geodesics. In 1988, calculations that accounted for the horizontal refraction of sound, across the strong fronts of the Southern Ocean in particular, gave the perplexing result that Bermuda was in the shadow of Africa.