Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2010, Vol. 7, No. 1, pp. 190-200
Study of wave disturbances of ionospheric plasma during tropical cyclone Katrina using remote sounding data
N.P. Perevalova
, A.S. Polyakova
, A.B. Ishin
, S.V. Voeykov
Institute of Solar-Terrestrial Physics, Russian Academy of Sciences SB RAS, 664043, Russia, Irkutsk, p/b 291
Spatial-temporal dynamics of Total Electron Content (TEC) disturbances during tropical cyclone Katrina (23-31.08.2005) was examined. The TEC data from the international network of two-frequency ground-based GPS receivers were used. An increase in intensity of TEC oscillations with periods of 02-20 min and 15-40 min was registered during the maximum cyclone phase. We mapped the TEC disturbance intensity within the cyclone coverage and made comparative analysis of spatial-temporal dynamics of TEC disturbances and maps of near-surface meteorological parameters. For this purpose, the NSEP/NCAR Reanalysis meteorological data were used. We also showed efficiency of construction and comparative analysis of TEC disturbance intensity maps and meteorological maps for studying tropospheric effects on the ionosphere.
Keywords: ionospheric disturbances, tropical cyclones, GPS
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