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30TH INTERNATIONAL LIEGE COLLOQUIUM ON OCEAN HYDRODYNAMICS
INTERNATIONAL YEAR OF THE OCEAN
Liège, May 4-8, 1998
" Hydrodynamical and ecosystem processes in ice covered seas of
the Southern and Northern Hemispheres "
PRELIMINARY PROGRAM
Last modification 30th April
I wish you a good travel to Liège
How to reach the Colloquium ?
From Brussels Airport to Liège
Take Aiport City Express train at the airport (every 20 minutes, to
Brussels).
Change at Station BRUSSELS Nord for train to Liège Guillemins
(every 30 minutes).
The Colloquium will be held at the University of Liège, Sart
Tilman Campus, Bâtiment des Nouveaux Amhithéatres, B7, Auditorium
202.
The Campus is served by buses n°48 and in addition, a special bus
will take the participants from the downtown Hotels to the Campus, each
morning, according to the following time table:
Ibis : a.m. 8.00, Mercure : a.m. 8.05, Cygne d'Argent : a.m. 8.15,
Univers : a.m. 8.25, Holiday Inn : a. m. 8.35.
The Colloquium will be held at the Sart Tilman campus of the
University of Liege, building
7b ''batiment des arts'' (instructions in french)
Dr. Jean-Henri Hecq: (e-mail : JH.Hecq@ulg.ac.be)
PROGRAMME
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Monday May 4th
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Tuesday May 5th
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Wednesday May 6th
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Thursday May 7th
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Friday May 8th
30th International Liège Colloquium on Ocean Hydrodynamics
Liège, May 4-8, 1998
" Hydrodynamical and ecosystem processes in ice covered
seas of the Southern and Northern Hemispheres "
MONDAY, May 4th, 1998
9.00 - 10.00 : Registration, Coffee, Display of posters
10.00 - 12.30
Introduction
J.C.J. Nihoul.
Université de Liège. Belgium
Session 1 Chairman L. Legendre
General hydrodynamical processes in ice covered seas
10h30.- Intensive current disturbance in the Northern-East Norvegian
Sea.
V. M. Kushnir
Marine Hidrophysical Institute. Sevastopol. Ukraine
11h00.- Deep water ventilation by gravity currents forming on
polar shelves - a numerical investigation -
J. Kämpf1, H. Fohrmann2, and J. O. Backhaus1
1: Institut für Meereskunde, Hamburg, Germany
2: Sonderforschungsbereich, Kiel, Germany
11h30.- Modeling of the large-scale water circulation and transport
of pollutants in the Arctic Ocean
V.K. Pavlov.
Arctic and Antarctic Research Institute, St.-Petersburg, Russia
12h00.- Two-dimensional vortex motions of fluid in harbour-like
basins at large Reynolds numbers
V. Goncharov1 and V. Pavlov2
1: Institute of Atmospheric Physics, Moscow, Russia
2: UFR de Mathématiques Pures et Appliquées, Lille, France
MONDAY, May 4th, 1998 14.00 - 18.30
Session 2 Chairman A. Kostianoy
Specific Hydrodynamical processes in ice covered seas
14h00.- Vertical turbulent structure of ice-covered flows in
coastal areas of tidal seas
E.I. Debol'skaya
Institute of Russian Academy of Science, Moscow, Russia
14h30.- Modelling contaminant transport in Arctic Ocean
I.H. Harms1 and M..J. Karcher2
1: Institut fuer Meereskunde, Hamburg, Germany
2: Bundesamt fuerSeeschiffahrt und Hydrographie Hamburg, Germany
15h00.- General characteristics of density-turbidity currents
in the Ross Sea (Antarctica)
E. Salusti
Universita la Sapienza. Roma, Italy
15h30.-First Numerical Investigations of the Ross Sea
(Antarctic) General Circulation
A. Bergamasco and S. Carniel
CNR-ISDGM, Venice, Italy
(16.00 - 16.30 Coffee Break and Poster Display)
Session 3 Chairman
Front and polynya processes in ice covered seas
16h30.- Oceanic fronts of the Nordic Seas
A.G.Kostianoy and V.B.Rodionov
P.P.Shirshov Institute of Oceanology, Moscow, Russia
17h00.- On the formation of the Ross Sea polynya in a large-scale
ice-ocean model
H. Goosse and Th. Fichefet
Institut d'Astronomie de Géophysique G. Lemaitre, Louvain, Belgium
17h30.- Convective processes in the Ross Sea Shelf (Antarctica)
G.Buffoni, A.Cappelletti, G M.R. Manzella and P. Picco
ENEA, La Spezzia, Italy
18h00.- Antarctic Coastal Polynyas and katabatic winds
H. Gallée
Université Catholique de Louvain, Louvain la Neuve, Belgium
Université de Grenoble, France
18.30 Reception by J.C.J. Nihoul, Chairman of the Scientific
Organizing Committee
TUESDAY, May 5th, a.m. 9.00 - 12.30
Session 4 Chairman Ch Gerday
Ice and snow processes in ice covered seas
09h00.- Influence of Ice Deformation on Water Column in the Weddell
Sea
B. Petit
Management Unit of the North Sea Mathematical Models (MUMM), Brussel,
Belgium
Session 5. Chairman R.F. Matagne
Ecophysiological processes in ice covered seas
09h30.- Enzymes from cold adapted organisms: a thermodynamic
challenge
Charles Gerday.
University de Liège, Belgium
10h00.-Salinity and temperature tolerance of sea ice organisms
from pack ice of the Greenland Sea
C. Friedrich & R. Gradinger
Institute for Polar Ecology, Kiel Germany
(Coffee Break and Poster Display : 10.30 - 11.00)
11h00.-Life style and biochemical adaptation in Antarctic fishes
Guido di Prisco
Institute of Protein Biochemistry and Enzymology, C.N.R., Naples, Italy
Special Session Chairman R. Azzolini
International Collaboration at the Italian Arctic Base at Ny-Alesund
(Svalbard)
11h30.
General Introduction R. Azzolini , CNR, Rome, Italy
Project Presentation. I. Allegrini, CNR, Rome Italy
Relations with NY-Smac. G. Diprisco, CNR, Naples, Italy
TUESDAY, May 5th, p.m. 14.00 - 18.30
Session 6 Chairman L. Anderson
Physical/ecological interactions in ice covered seas
14h00.- Ecological and physical processes in the Marginal Ice
Zone of the northern Barents Sea during the summer melt period.
S. Falk-Petersen1, H. Hop1, W. P. Budgell1, R. Korsnes1 and E. Nøst
Hegseth2,
1: Norwegian Polar Institute, Tromsø, Norway
2: University of Tromsø, Norway
14h45.- Dynamics and downward export of first-year ice algae
and under-ice phytoplankton on the Canadian Arctic Shelf
L. Legendre, M. Fortier, C. Michel et B. LeBlanc
GIROQ, Université Laval, Québec, Canada
15h30.- Meso-scale features of co-occurrence of diatom blooms
and copepod abundance along the Antarctic Polar Front: The role of hydrodynamics
and biology.
U. Bathmann
Institut für Polar und Meeresforschung, Bremerhaven, Germany
(16.15 - 16.45 Coffee Break and Poster Display)
16h45.- Modeling hydro- and thermodynamics, including sea ice,
in the North Sea and the Baltic Sea on a decadal timescale.
C. Schrum.
Institut fuer Meereskunde Universitaet Hamburg
17h15.- Relationship between phytoplankton communities and water
column structure in the Ross Sea
A. Goffart1, L. Guglielmo2, G. Catalano3 and J.H. Hecq1
1: Université de Liège, Belgium
2: Universita di Messina, Italy
3: Istituto Talassografico di Trieste, Italy
17h45.- Modeling the Ross Sea ecosystems in relation to hydrodynamical
constraints.
J.H. Hecq1, A. Goffart1, B. Petit2, P. Brasseur3
1 Université de Liège, Belgium
2 Management Unit of the North Sea Mathematical Models (MUMM), Brussel,
Belgium
3 Université de Grenoble, France
WEDNESDAY, May 6th, a.m. 9.00 - 12.30
Session 7 Chairman C. Lancelot
Ecosystem processes in ice covered seas
09h00.- Lake Baikal ice properties and diatoms-picoplankton relationship
in water ecosystem.
S. V.Semovski1, P. P.Sherstyankin1 and N. P.Minko2
1: Limnological Institute, Irkutsk, Russia
2: Institute of Solar- Terrestrial Physics, Irkotsk, Russia
09h30.- Structure of phytoplankton communities in the waters
around Svalbard in summer 1991 (EPOS II project)
G. Socal1, and J. Wiktor2
1: Istituto di Biologia del Mare C.N.R., Venice, Italy
2: Arctic Ecology Group, Institute of Oceanology, PAN Sopot, Poland
10h00.- An assessment of primary production at the Polar Front
of Barents Sea: a region of the european Arctic shelf influenced by an
inflow of Atlantic water and by retreating ice edge.
A. Luchetta1, M. Lipizer1 , G. Socal2 and U. Schauer3
1- Istituto Talassografico C.N.R., Trieste, Italy
2 - Istituto di Biologia del Mare C.N.R., Venice, Italy
3 - Alfred Wegener Institute for Polar and Marine Research, Bremerhaven,
Germany
(Coffee Break and Poster Display : 10.30 - 11.00)
11h00.- Phytoplankton growth rates in the Ross Sea determined
by independent methods: temporal variations
W. O. Smith1, S. Mathot1, D. Nelson2, D. Garrison3, E. Lessard4, G.
DiTullio5, M. Gowing3, and L. Gordon2
1: University of Tennessee, Knoxville, USA
2: Oregon State University, Corvallis, USA
3: University of California, Santa Cruz, USA
4: University of Washington, Seattle, USA
5: University of Charleston, Charleston, USA
11h30.- Estimate of Phaeocystis sp. carbon biomass: methodological
problems related to the mucilaginous nature of the colonial matrix
S. Mathot1, W.O. Smith1, D.L. Garrison2, M.M. Gowing2,
C.A. Carlson3
1: University of Tennessee, Knoxville, USA.
2: University of California, Santa Cruz, USA.
3: Bermuda Biological Station for Research, USA
WEDNESDAY, May 6th, p.m. 14.00 - 18.30
Session 7 bis Chairman S. Falk Petersen
Ecosystem processes in ice covered seas
14h00.- Significance of photo- and heterotrophic flagellates
in Arctic sea ice
R. Gradinger
Institute for Polar Ecology, University of Kiel, Germany
14h45.- The comparative role of
large grazers in the control of the silica cycle in ice-covered and in
open-ocean zones of the polar seas
J. Lefèvre and P. Treguer
Universite de Bretagne Occidentale, Brest, France
15h30.- Distribution and development of the microalgal community
in the Laptev Sea kryo-pelagic system during autumnal freeze-up
K. von. Juterzenka1, K. Tuschling1, A. Anoshkin2, K. Knickmeier1
1: Institut für Polarökologie, Kiel University, Germany
2: Krylov Shipbuilding Research Institute, St. Petersburg, Russia
(16.00 - 16.30 Coffee Break and Poster Display)
16h30.- Photosynthetic pigment fingerprints as indicators of
algae assemblages from the water column, first- and multi-year sea-ice
in the high Arctic (Barents-/ Greenland-Sea).
I. Peeken
Institut für Meereskunde, Kiel, Germany
17h00.- Nutrients depletions in the Ross Sea and their relations
with pigment stocks.
L. Goeyens1, A. Goffart2 and G.Catalano3.
1: University of Brussels, Belgium
2: Université de Liège, Belgium
3: Istituto Talassografico di Trieste, Italy
17h45.- Annual changes in primary production and phytoplankton
in relation to water mass,
nutrients, and light, wih emphasis on the sea ice zone (Austral Ocean)
B. Griffiths,
Australia
19.30 COLLOQUIUM DINNER AT THE CHATEAU DE COLONSTER
THURSDAY, May 7th, a.m. 9.00 - 12.30
Session 8 Chairman P. Sedwick
Geochemical processes and vertical fluxes in ice covered
seas
09h00.- Particle fluxes and biogeochemical processes in an area
influenced by seasonal retreat of the ice margin (Northwestern Ross Sea,
Antarctica)
L. Langone, M. Frignani, M. Ravaioli and C. Bianchi
Istituto di Geologia Marina (CNR), Bologna, Italy
09h15.- Seasonality and Composition of particulate fluxes in
the Southern Ross Sea (Antarctica)
A. Accornero1, D. Marino2, A. Monaco3 and S. Razouls4
1: Istituto di Meteorologia ed Oceanografia, Istituto Universitario
Navale, Napoli, Italy
2: Stazione Zoologica "A. Dhorn", Napoli, Italy
3: Laboratoire de Sedimentologie et Geochimie Marines, Universite de
Perpignan, France
4: Observatoire Oceanologique, Universite Pierre et Marie Curie, Banyuls
sur Mer, France
09h45.- Vertical flux patterns of marine and terrigenous matter
in the ice-covered Laptev Sea
E.-M. Nöthig1, K. Fahl1, M. Gleitz1, S. Grossmann1 and V.Shevshenko2
1: Alfred Wegener Institute for Polar and Marine Research, Bremerhaven,
Germany
2: Shirshov Institute of Oceanology, Moscow, Russia
(Coffee Break and Poster Display : 10.30 - 11.00)
11h00.- Distribution of dissolved organic carbon in the central
Arctic Ocean
I. Bussmann and G. Kattner,
Institut für Polar und Meeresforschung, Bremerhaven, Germany
11h30.- Using Nitrate-Phosphate Relationships to Trace Atlantic
and Pacific Waters in the Upper Arctic Ocean.
E P Jones 1, L G Anderson 2, J H Swift 3
1: Bedford Institute of Oceanography, Nova Scotia, Canada
2: Department of Analytical and Marine Chemistry, Göteborg University,
Sweden
3: Scripps Institution of Oceanography, University of California San
Diego, USA
12h00.- Sinks of carbon dioxide in the Greenland Sea and the
Arctic Ocean
Leif G. Anderson 1, Melissa Chierici 1, Agneta Fransson 1 and E. Peter
Jones 2
1: Department of Analytical and Marine Chemistry, Göteborg University,
Sweden
2: Bedford Institute of Oceanography, Nova Scotia, Canada
THURSDAY, May 7th, p.m. 14.00 - 18.30
Session 8 bis Chairman U. Bathmann
Geochemical processes and vertical fluxes in ice covered
seas
14h00. The Sub-Ice Boundary Layer: Ecosystem Properties of the
Arctic Marginal Ice Zone.
O. J. Haupt1, R. Gradinger2, T. Mock2
1 Sonderforschungsbereich University of Kiel, Germany
2 Institut für Polarökologie, University of Kiel, Germany
14h30.- Arctic sea-ice communities - Sources of particulate matter
for the pelagic ecosystem.
I. Werner, R. Gradinger & C. Friedrich
Institute for Polar Ecology, Kiel, Germany
15h00.- Pelagic production and export patterns as related to
the ice regime in the Greenland Sea
R. Peinert1, O. Haupt1, R. Ramseier2, E. Bauerfeind1
1: Institute for Marine Research, Kiel, Germany
2: Microwave Group Ottawa-River, Dunrobin, Canada
15h30.- Downward export of phytoplankton production in the Northeast
Water Polynya: Influence of wind and hydrodynamic conditions.
S. Pesant1, E. Bauerfeind2, M. Johnson3, L. Legendre1, M. Gosselin4,
O. Haupt2
1: GIROQ, Université Laval, Québec, Canada
2: University of Kiel, Germany
3: University of Alaska, Fairbanks, Alaska, USA
4: Université du Québec à Rimouski, Québec,
Canada
(16.00 - 16.30 Coffee Break and Poster Display)
16h30.- Bentho-pelagic coupling in the Northeast Water Polynya:
A self-sustaining system vs. a potential export from a semi enclosed Arctic
ecosystem.
W. Ritzrau1, S. Pesant2, D. Piepenburg1, G. Graf3, L. Legendre2, R.
Ramseier4
1: University of Kiel, Germany
2: GIROQ, Université Laval, Québec, Canada
3: University of Rostock, Germany
4: Microwave Group-Ottawa River, Ontario, Canada
17h00.- The release of iron from melting sea ice and ice-edge
algal blooms in the Southern Ocean
P. N. Sedwick1 G. R. DiTullio2 and P. R. Edwards3
1: Antarctic CRC, Hobart, Tasmania, Australia
2: Grice Marine Biological Laboratory, Charleston, South Carolina,
USA
3: IASOS, University of Tasmania, Hobart, Tasmania, Australia
17h45.- Iron and light are controlling phytoplankton bloom development
and carbon exportation in the Southern Ocean : observational and mathematical
evidence
C. Lancelot1, E. Hannon, S. Becquevort1, H. de Baar2 and C.Veth2
1: GMMA, Université Libre de Bruxelles, Belgium
2: NIOZ, Texel, The Netherlands
FRIDAY, May 8th, a.m. 9.00 - 12.30
Session 9 Chairman F. Faranda
Zooplankton, heterotrophy and Upper trophic levels
09h00.- Meso- and bathypelagic copepods in the ice-covered Greenland
Sea: water column partitioning and hydrographic influences
H. Auel
Institute for Polar Ecology, University of Kiel, Germany
09h30.- Life Cycle Strategies and the Lipid Diversity of Polar
Zooplankton
W. Hagen1, G. Kattner2, J.R. Sargent3 and S. Falk-Petersen4
1: Institut für Polarökologie, Universität Kiel, Kiel,
Germany,
2:-Institut für Polar- und Meeresforschung, Bremerhaven, Germany,
3: NERC, University of Stirling, United Kingdom
4: Norsk Polarinstitutt, Tromsø, Norway
10h00.-Mass occurrence of Pseudocalanus minutus in giant box
corer samples
Dan Seiler
Institute for Polar Ecology, Kiel, Germany
(Coffee Break and Poster Display : 10.30 - 11.00)
11h00.-Zooplankton biodiversity in the Ross Sea (Antarctica)
L. Guglielmo1, A. Granata and J.H. Hecq2
1: Universita di Messina, Italy
2: Université de Liège, Belgium
11h30. At-sea distribution of seabirds and marine mammals in
polar ecosystems reflect high production, low diversity in Weddell Sea
pack-ice.
Claude R. Joiris
Free University of Brussels, Belgium
12h00. Modelling approach of the upper trophic levels of the
Southern Ocean ecosystem
Siegrid Jans, Khalid Elkhalahi and Nikos Skliris
Université de Liège, Belgium
12h15. Ocean-Atmosphere Heat Fluxes in the Ross Sea - Preliminary
Results
G. Budillon, G. Fusco, G. Spezie
Istituto di Meteorologia e Oceanografia - IUN, Napoli - ITALY
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