134
A. Bergamasco et al.
4 Conclusions
The velocity fields obtained from the model seem to be in good agreement both
with experimental observations and with theoretical studies commonly accepted
by the international scientific community. This is valid also for the vertical sections of température and salinity values. Still, the model assumptions could be
improved. For example, embedding an enhanced description of the sea-ice interaction, especially near the RIS area, should improve the accuracy of melting phenomena.
Velocity modules hâve been underestimated; more realistic values may be
probably reached using wind time sériés, which, at the moment, are being
acquired by authors: this is mandatory in order to start modelling the Ross Sea
seasonal variability. The topography also deserves another comment; the authors
received a more detailed and recent bathymetry from Jacobs [1], which could
change some important factors, such as the RIS edge latitude.
Acknowledgenients. The authors wish to thank the CLIMA Project, which operated in the second leg of the tenth Italian expédition in Antarctic in the person of
the coordinator, Prof. G. Spezie. Spécial thanks are given to Dr. A. Artegiani and
Dr. G. Budillon, for their helpful collaboration in the CTD data acquisition, to Ing.
R. Meloni and Dr. M. Ravaioli for the mooring data availability, and to Mr. G.
Arcari and Dr. F. De Biasio for supporting the data élaboration.
References
1. Jacobs SS (1989) Marine Controls on modem sédimentation on the Antarctic continental shelf.
Marine Geol 85:121-153
2. Locarnini RA (1994) Water masses and circulation in the Ross Gyre and environs. PhD dissertation, Texas A&M University
3. Mellor GL ( 1991 ) User's guide for a three dimensional, primitive équation, numerical océan model.
Progress in atmosphère and océan science. Princeton University, Princeton, New Jersey, p 35
4. Jacobs SS, Gordon AL, Ardai JL (1979) Circulation melting beneath the Ross Ice Shelf. Science
203:439-443
5. Buzzi A, Malguzzi P, Cadelli R (1996) Simulations of a low level jet over the Antarctic région: 3-D
diagnostics of potential vorticity. In: Colacino M, Giovannelli G, Stefanutti L (eds), Conférence
Proceedings Vol 51, Italian Research on Antarctic Atmosphère, SIF, Bologna
6. Picco P, Bergamasco A, Demicheli L, Langone L, Manzelîa GMR, Meloni R (1998) Current meter,
température and salinity measurements in the Ross Sea shelf (Antarctica) during 1995/1996: data
présentation. In: Picazzo M (ed) Atti del XII Congresso Nazionale dell’Associazione Italiana di
Oceanologia e Limnologia-AIOL, Genova 11:105-120
A. Bergamasco et al.
4 Conclusions
The velocity fields obtained from the model seem to be in good agreement both
with experimental observations and with theoretical studies commonly accepted
by the international scientific community. This is valid also for the vertical sections of température and salinity values. Still, the model assumptions could be
improved. For example, embedding an enhanced description of the sea-ice interaction, especially near the RIS area, should improve the accuracy of melting phenomena.
Velocity modules hâve been underestimated; more realistic values may be
probably reached using wind time sériés, which, at the moment, are being
acquired by authors: this is mandatory in order to start modelling the Ross Sea
seasonal variability. The topography also deserves another comment; the authors
received a more detailed and recent bathymetry from Jacobs [1], which could
change some important factors, such as the RIS edge latitude.
Acknowledgenients. The authors wish to thank the CLIMA Project, which operated in the second leg of the tenth Italian expédition in Antarctic in the person of
the coordinator, Prof. G. Spezie. Spécial thanks are given to Dr. A. Artegiani and
Dr. G. Budillon, for their helpful collaboration in the CTD data acquisition, to Ing.
R. Meloni and Dr. M. Ravaioli for the mooring data availability, and to Mr. G.
Arcari and Dr. F. De Biasio for supporting the data élaboration.
References
1. Jacobs SS (1989) Marine Controls on modem sédimentation on the Antarctic continental shelf.
Marine Geol 85:121-153
2. Locarnini RA (1994) Water masses and circulation in the Ross Gyre and environs. PhD dissertation, Texas A&M University
3. Mellor GL ( 1991 ) User's guide for a three dimensional, primitive équation, numerical océan model.
Progress in atmosphère and océan science. Princeton University, Princeton, New Jersey, p 35
4. Jacobs SS, Gordon AL, Ardai JL (1979) Circulation melting beneath the Ross Ice Shelf. Science
203:439-443
5. Buzzi A, Malguzzi P, Cadelli R (1996) Simulations of a low level jet over the Antarctic région: 3-D
diagnostics of potential vorticity. In: Colacino M, Giovannelli G, Stefanutti L (eds), Conférence
Proceedings Vol 51, Italian Research on Antarctic Atmosphère, SIF, Bologna
6. Picco P, Bergamasco A, Demicheli L, Langone L, Manzelîa GMR, Meloni R (1998) Current meter,
température and salinity measurements in the Ross Sea shelf (Antarctica) during 1995/1996: data
présentation. In: Picazzo M (ed) Atti del XII Congresso Nazionale dell’Associazione Italiana di
Oceanologia e Limnologia-AIOL, Genova 11:105-120