Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 1, pp. 22-31
The method of studying of structure of a radio thermal field of the Earth based on Takens procedure
N.M. Astafieva
, M.D. Raev
, G.R. Khairullina
Space Research Institute of RAS (IKI RAS), 117997 Moscow, Profsoyuznaya 84/32
Interannual oscillations of a radio thermal field of the Earth are studied on the basis of data of microwave satellite monitoring on the frequencies containing the information on distribution of a troposphere moisture and water stock (on daily radio thermal fields from electronic collection of Space Research Institute of RAS GLOBAL-Field, http://www.iki.rssi.ru/asp). The analysis of existential structure of a radio thermal field was performed by using the method based on Takens procedure. The idea of the analysis of random signals for the purpose of reconstruction the properties of the sources (physical processes) generating them, for the first time set forth in (Takens F. Lect. Notes Math. 1981. № 899. P. 366-381) and developed in (Grassberger P., Procaccia I. Phys. Rev. Lett. 1983. V. 50. № 5. P. 346-349), is to construct a diagnostic of the physical process on the basis of the analysis of a long enough, but the final time realization of the investigated physical process. The study presents the method based on Takens procedure and results of its application for the analysis of existential structure of a radio thermal field over Atlantic ocean. Interannual oscillations of a radio thermal field are studied by using the offered method (and the filtration of different time scales, less than a year and annual). There are revealed latitudinal structure of the annual cycle and the quasi-biennial oscillations in the troposphere. Comparison with the results obtained by other methods (wavelet transform, in particular) showed the efficiency of the technique and good agreement.
Keywords: interannual oscillations, troposphere of the Earth, microwave satellite monitoring, global radio thermal field, Takens procedure
Full textReferences:
- Grassberger P., Procaccia I., Characterization of Strange Attractors, Physical Review Letters, 1983, Vol. 50, No. 5, pp. 346–349.
- Daubechies I., Ten lectures on wavelets, CBMS Lecture Notes Series, SIAM. Philadelphia, 1991, 136 p.
- Doyle J. F. A., Wavelet deconvolution method for impact force identification, Experimental Mechanics, 1997, Vol. 37, No. 4, pp. 403–408.
- Takens F., Detecting strange attractors in turbulence, Lecture Notes in Mathematics, 1981, No. 899, pp. 366–381.
- Astaf'eva N.M., Uspekhi fizicheskikh nauk, 1996, Vol. 166, No. 11, pp. 1145–1170.
- Astaf'eva N.M., Raev M.D., Sharkov E.A., Issledovanie Zemli iz kosmosa, 2006, No. 3, pp. 64–69.
- Malinetskii G.G., Potapov A.B., Sovremennye problemy nelineinoi dinamiki (Actual problems of nonlinear dynamics), Moscow: Editorial URSS, 2000, 336 p.
- Khairullina G.R., Astaf'eva N.M., Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2010, Vol. 7, No. 3, pp. 53–61.
- Khairullina G.R., Astaf'eva N.M., Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2011, Vol. 8, No. 1, pp. 271–279.
- Khairullina G.R., Astaf'eva N.M., Issledovaniya Zemli iz kosmosa, 2011, No. 4, pp. 78–84.