031.doc
Analysis of Annual Sea Level Variation of Barents and White Seas by Satellite
Altimetry Data, Results of Hydrodynamic Simulation and Tide Gauge Stations
Data
Sergey A. Lebedev, Geophysical Center of Russian Academy of Sciences, 3,
Molodezhnaya, Moscow, Russia, 117296, lebedev@wdcb.ru. Phone: +7 (095)
930-5639. Fax: +7 (095) 930-5509
Oleg I. Zilberstein, Sergey K. Popov, Olga V. Tikhonova, Hydrometeorological Center
Research of Russian Federation, 9-13, Bol. Predtechensky per., Moscow, Russia,
123242, infomar@orc.ru. Phone: +7 (095) 255-2296. Fax: +7 (095) 255-9307.
The variability of an arctic seas is level of the usually analysed by the data of tidal
gauge coast stations. However, researching level variation in the open part of the sea
White and Barents seas by these data it is impossible. It is connected to features of a
hydrodynamic mode. Near of the coast sea level fluctuations of these seas are
conditioned not only tides, but also storm surges. Therefore, results of hydrodynamic
simulation, of a satellite altimetry data and tide gauge data stations were used for the
analysis of annual level variability of all sea and its open part.
The specialists Hydrometeorological Center Research of Russian Federation
(HMCRF) built three-dimensional baroclinic model with a free surface, which one
allows for storm surges and tides. Under the data about mean temperature and the
salinity were conducted calculations since 1948-1998 years with usage of atmospheric
fields of the Project REANALYSIS.
In research the satellite altimetry data of GEOSAT, ERS-1/2 and TOPEX/POSEIDON
of the NASA/GSFC Ocean Altimeter Pathfinder Project and results of calculations on
regional tidal model were used also built in HMCR.
This method of the analysis of an annual sea level variation of Barents and White
Seas has shown good coincidence between independent data types.
The research was undertaken with partial support from the Russian Basic Research
Foundation.
Oral presentation (may be used if it possible ppt-computer presentation)
Satellite altimetry and oceanography