Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2010, Vol. 7, No. 4, pp. 104-111
Interpolation of on-line data of the ARGO buoy system for data assimilation
in the World ocean circulation model
N.B. Zakharova
1, S.A. Lebedev
21 Institute of Numerical Mathematics, RAS, 119333 Moscow, Gubkina st. 8
2 Geophysical center of RAS, 119296 Moscow, Molodezhnaya st. 3
The basic parameters of the World ocean state are temperature, salinity, velocity and direction of currents, sea water
level, content of oxygen etc. For many years this parameters were measured by traditional contact measure methods
that lacked efficiency and the ability to measure temperature much beneath the surface. The ARGO buoy system
involves both contact and distance ocean parameters measure methods. Temperature and salinity profiles are measured
by contact methods, but data communication is made by satellites. So the ARGO buoy system has added efficiency
and greater reliability to ocean parameters measurements.
In the meteorology and oceanology measurement data of basic physical atmosphere and ocean fields are assimilated
in mathematical models for the purpose of finding initial conditions (or other parameters of the model) or more adequate
reproduction of the real physical processes and their forecast.
Interpolation and extrapolation methods of input information are important among numerical mathematics methods
used for solving the data assimilation problems. In this connection the development of such algorithms and programs
based on up-to-date approaches and taken into account recent scientific results in that way is a timely problem.
Keywords: interpolation, observation data, ARGO buoy system, temperature, salinity, World ocean
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