Laboratory of Atmosphere Physics (LAPh)

Laboratory of Atmosphere Physics (LAPh)

The main aim of LAPh is the investigation of dynamic processes in geospherical shells initiated by solar and lithospheric effects. The aim is attained by solving the following tasks:

1. Investigation of magnetospheric plasma dynamics in drift approximation applying nonequilibrium thermodynamics variation methods uniting Prigozhin and Onsager principles.

2. Investigation of magnetized plasma behavior in axial nonstationary field in magnetosphere capture region considering three adiabatic invariants:

-modeling of ring current formation and decay during the main and recovery phases of magnetic storm.

-modeling of disturbed magnetosphere dynamics.

-modeling of ion drift in the inner plasmasphere during magnetospheric disturbances and their temperature dynamics.

3. Investigation of the effect of lithospheric origin process on ionosphere parameter dynamics:

-analysis of critical frequency FoF2 changes applying mathematical methods of wavelet-transform superposed with autoregressive model class – integrated moving average, and using neural net methods;

-analysis of the variation of Es and E2 (Еs-spread and   F-spread) layer turbulization manifestation by statistical methods.

4. Development of mathematical models and numerical methods to determine anomalous behavior of ionospheric parameters according to satellite (“Demeter” satellite) and ground observations in seismically active regions.

5. Application and development of radiotechnology methods to study large-scale ionospheric disturbances in terms of satellite GPS-radiointeroferometry methods on the basis of Kamchatka network of GPS satellite navigational system receivers;   

6. Complex investigation by the means of automatization technologies and applying low-orbital navigational satellite, GPS-radiointeroferometry and ionosond network signals to investigate wave processes in the ionospheric plasma.

7. Development of methods for construction of tomograms of ionosphere electron temperature meridional distribution on the basis of reception of signals from low-orbit navigational satellites.

8. Development of a model for electric field pulse generation considering radon and aerosol emission in seismically active regions causing redistribution of electric field and IR radiation (together with the Institute of Erath Physics and Moscow State University).

9. Application of probabilistic approach to the earthquake catalogue and development of algorithms on its bases for numerical modeling of seismic regime dynamics in Kamchatka region to locate possible catastrophic events in time and space.

 Monography:

1.Bogdanov V.V., Geppener V.V., Mandrikova O.V. Modeling of geophysical parameter time series on the basis of wavelet-transform. St.P.: Pub: StPSETU “LETI”, 2006. 108p.

2.Bogdanov V.V. Magnetophseric plasma dynamics in drift approximation. – Vladivistok: Dalnauka, 2006. – 138 p.