Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa13a1079b&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SA13A-1079
Physics
2427 Ionosphere/Atmosphere Interactions (0335), 2435 Ionospheric Disturbances, 2439 Ionospheric Irregularities, 2443 Midlatitude Ionosphere
Scientific paper
Evidence of coupling between lower atmospheric regions and the ionosphere/thermosphere has steadily increased with the utilization of various instrument suites and sophisticated modeling efforts. In this presentation we utilize satellite-based GPS sensors to determine the extent of ionospheric disturbances in the vicinity of hurricanes/typhoons. Using GPS occultation data from the PicoSat and COSMIC satellites we investigate TEC levels and ionospheric scintillation near tropical storms. We characterize the relationship between any ionospheric effects and a storm's horizontal size, strength, and relative position. After examining over 150 tropical storms between 2001 and 2004, we find that scintillation occurs over 50% of the time within 1000 km of a storm center. The occurrence of scintillation seems to favor the area east and northeast of the storms" center.
Bishop Richard L.
Straus Paul R.
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