Regional features of atmospheric manifestations of tropical cyclones according to ground-based GPS network dataстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Using statistically significant data, we show that the GPS observation method is efficient for revealing the response of the upper atmosphere to global synoptic processes with the help of correlation techniques. The wave structures detected with the help of GPS interferometry in the given observational network were found to be geographically associated with places of orographic disturbances. For example, disturbances of acoustic gravity waves may arise along coastlines from typhoon-captured airflows. The excitation of these wave structures is most efficient at large rates of increase or decrease in the typhoon intensity. In this case, there occurs a sharp change in the structure (namely, the spectrum roll-off factor of wavelike disturbances). Our analysis revealed no statistically significant correlation between the emergence of wave structures and the core (eye) of a typhoon or cyclone.