2011
DOI: 10.2151/jmsj.2011-a05
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Investigation of Kelvin Waves in the Stratosphere Using FORMOSAT-3/COSMIC Temperature Data

Abstract: Temperature data from Global Positioning System based Radio Occultation (GPS RO) soundings of the Formosa Satellite mission 3/Constellation Observing System for Meteorology, Ionosphere, and Climate (FORMOSAT-3/COSMIC or F-3/C) micro satellites has been investigated in detail to study the Kelvin wave properties. The high temporal and spatial resolution satellite data from August 2006 to August 2009 have enabled the investigation of Kelvin wave activity on each day. The dominant waves of wave numbers 1 and 2 (W1… Show more

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Cited by 10 publications
(5 citation statements)
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“…This was again different from the E1 waves, where the slow E1 waves gained more than the ultra-fast E1 waves. color axis scaling of 0-0.24 K. It is evident that the amplitude of the E2 waves was smaller than that of the E1 waves, and the result is consistent with the previous studies by [11,38]. In the lower stratosphere, E2 waves were active at periods ranging from 7 to 20 days, and both the fast and slow E2 waves were present.…”
Section: Properties and Long-term Variations Of E2 Wavessupporting
confidence: 90%
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“…This was again different from the E1 waves, where the slow E1 waves gained more than the ultra-fast E1 waves. color axis scaling of 0-0.24 K. It is evident that the amplitude of the E2 waves was smaller than that of the E1 waves, and the result is consistent with the previous studies by [11,38]. In the lower stratosphere, E2 waves were active at periods ranging from 7 to 20 days, and both the fast and slow E2 waves were present.…”
Section: Properties and Long-term Variations Of E2 Wavessupporting
confidence: 90%
“…In the present study, we further found that the amplitudes of those waves were most abundant (record amplitudes) during the past 40 years, since we used a long-term dataset (ERA-Interim) rather than a single satellite dataset such as FORMOSAT-3/COSMIC (data are available from 2006), which was used by [7]. Figure 4 shows the same period-altitude spectra as in Figure 2 but for E2 waves with a different color axis scaling of 0-0.24 K. It is evident that the amplitude of the E2 waves was smaller than that of the E1 waves, and the result is consistent with the previous studies by [11,38]. In the lower stratosphere, E2 waves were active at periods ranging from 7 to 20 days, and both the fast and slow E2 waves were present.…”
Section: Properties and Long-term Variations Of E1 Wavessupporting
confidence: 82%
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“…Using RO data, Alexander et al (2008b) and Randel and Wu (2005) studied convectively coupled equatorial waves. Brahmanandam et al (2010), Pan et al (2011), and Flannaghan and Fueglistaler (2013) studied the structures of Kelvin waves and their variability with longitude, seasons, quasibiennial oscillation (QBO), and El Niño-Southern Oscillation (ENSO). The Kelvin waves were confined to 30°W to 90°E in boreal winter, but propagated over most longitudes in boreal summer.…”
mentioning
confidence: 99%