Previous Seminars

Clouds and the Radiation budget over the Arctic Ocean - Results from CloudSat and CALIPSO

Speaker: 
Marta Zygmuntowska, University of Hamburg
Seminar Date: 
29. November 2010 - 14:15 - 15:00

Climate Impact of Greenland Ice Sheet melting

Speaker: 
Lei Yu
Seminar Date: 
25. November 2010 - 12:15 - 13:00

The Atlantic meridional overturning circulation (AMOC) plays an active
role in global climate change. Here, three numerical simulations with
Bergen Climate model have been performed with the additional freshwater
released from the entire coast, the western and the eastern coast of the
Greenland to study the response of AMOC in the three experiments and the
potential impacts on climate. The preliminary results show the AMOC is
weakening in a similiar way irrespective of the freshwater pattern.

Sensitivity of the Arctic ocean to the Bering Strait inflow: a modeling study

Speaker: 
Borghild Ness
Seminar Date: 
11. November 2010 - 12:15 - 13:00

Water from the Pacific Ocean flowing through the Bering Strait (BS) influences the heat and salt budget of the Arctic. With salinity between 31.4 and 32.9, it contributes with approximately 50% of the fresh water input to the Beaufort Gyre reservoir. The hydrography and transport of the inflow vary significantly throughout the year. Woodgate et al. (2010) suggested that warm water intrusions may act as a trigger for the onset of the seasonal melt of ice, as in the 2007 extreme event.

The role of ocean parameters on tropical cyclones in the BOB region

Speaker: 
Lakshemi Srikomth
Seminar Date: 
7. October 2010 - 12:15 - 13:00

Pilot TOPAZ reanalysis (2003-2008)

Speaker: 
Pavel Sakov
Seminar Date: 
9. September 2010 - 11:00 - 12:00

The pilot TOPAZ reanalysis is produced for MyOcean project for the period
2003-2008. It precedes the main (20-year) reanalysis and is now quickly
approaching the finish line.

We present some outcomes of the reanalysis, including characteristics of the
TOPAZ4 data assimilation system, DFS and SRF diagnostics, innovation
statistics, and some early validation attempts.

"Modelling the Benguela Current System" - using ROMS model

Speaker: 
Dr. Jennifer Veitch, University of Cape Town and Nansen-Tutu Center
Seminar Date: 
8. September 2010 - 10:15 - 11:00

The influence of Indonesian Through Flow on the Indian Ocean-a model study

Speaker: 
Madhusoodanan M.S., NERCI
Seminar Date: 
10. August 2010 - 12:15 - 12:45

Sea ice modeling in the Fram Strait

Speaker: 
Dany Dumont, NERSC
Seminar Date: 
1. July 2010 - 13:45 - 14:15

Numerical modelling of the interactions of ocean waves and sea ice

Speaker: 
Luke Bennetts, Department of Mathematics and Statistics, University of Otago, New Zealand
Seminar Date: 
1. July 2010 - 13:00 - 13:45

In this talk I will introduce the assumptions and methods that are typically used when modelling interactions between ocean waves and sea ice. I will then describe the stages through which the field has progressed to produce the current representation, which is ready to be assimilated into oceanic circulation models.