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- W2980252393 abstract "One of the anomalies which continue to receive much attention is the large-scaleplasma depletions, the ionospheric plasma bubbles. Equatorial plasma bubbleirregularity if not well monitored, can impair radio and Global Positioning System(GPS) navigations asides other systems. Consequently, the midnight seasonal andlongitudinal variability of plasma bubbles occurrence rate had been presented. Dataused spans January 1978-December 1979 (F10.7 = 143), and is obtained using theAtmospheric Explorer satellite ion drift meter. 18 longitudinal locations wereexamined and were divided into five sectors (African, Indian, Pacific, American andAtlantic) across the globe. The percentage occurrence rates (%R) of the bubblesrevealed 10, 39, 34, and 16% for March and September equinoxes, June solstice, andDecember solstices respectively, with the highest activity in the African-Atlanticsector for all seasons. Seasons with the highest %R are characterized withcorresponding higher correlation coefficients (R) of total number of trips (TT) to tripswith bubbles (TB) relation. June solstice and September equinox recorded higherTT/TB correlation relation values of R = 0.8270 and 0.7543 respectively. Theoccurrence activity rate of DB , the percentage ratio of number of bubbles (B) relativeto the number of trips with bubbles (TB) is lower during the solstices when comparedwith equinoxes for all longitudinal sectors. We suggested that the correlation valuefor the TT/TB relation is an indicator of the occurrence rate magnitude bothseasonally and longitudinally. Past results especially in the Pacific sector were alsoconfirmed.Keywords: ionosphere; solstice; equatorial plasma bubbles; GPS navigation; equator;electrodynamics." @default.
- W2980252393 created "2019-10-18" @default.
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- W2980252393 date "2018-10-01" @default.
- W2980252393 modified "2023-09-26" @default.
- W2980252393 title "Global pattern of plasma bubbles irregularities at midnight using ion drift spectrometer measurements" @default.
- W2980252393 hasPublicationYear "2018" @default.
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