2010
DOI: 10.2151/sola.2010-025
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Cloud-Top Height Variability Associated with Equatorial Kelvin Waves in the Tropical Tropopause Layer during the Mirai Indian Ocean cruise for the Study of the MJO-Convection Onset (MISMO) Campaign

Abstract: Cloud-top height (CTH) variability in the tropical tropopause layer (TTL) in association with equatorial Kelvin waves is investigated using a new CTH dataset based on MTSAT-1R geostationary satellite measurements with a statistical look-up table constructed based on CloudSat measurements. We focus on a case in the tropical Indian Ocean during October−December 2006, when shipboard radiosonde, TTL water vapor, and 95-GHz cloud radar measurements were taken during the Mirai Indian Ocean cruise for the Study of th… Show more

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Cited by 8 publications
(8 citation statements)
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“…These results imply that the wave activities may change the water vapor and ozone budget in the TTL at time scales on the order of a week, as shown in recent observations by Fujiwara et al (2009) and Suzuki et al (2010b). Because of its quasi-conservative nature, ozone may be more suitable for detecting signals of turbulent mixing.…”
Section: Discussionsupporting
confidence: 59%
“…These results imply that the wave activities may change the water vapor and ozone budget in the TTL at time scales on the order of a week, as shown in recent observations by Fujiwara et al (2009) and Suzuki et al (2010b). Because of its quasi-conservative nature, ozone may be more suitable for detecting signals of turbulent mixing.…”
Section: Discussionsupporting
confidence: 59%
“…The changes in tropospheric upwelling are driven by changes in convective activity, which are triggered by anomalously low temperatures near 100 hPa. Variations in tropopause temperatures associated with tropical waves are known to be capable of modulating equatorial convective activity (Zhou and Holton 2002;Suzuki et al 2010). A similar process could explain the impact of cooling in the equatorial stratosphere on the troposphere during SSW events.…”
Section: Discussionmentioning
confidence: 96%
“…An alternative method to diagnose convective penetration, such as that used by Suzuki et al (2010) employing cloud top height data by Hamada and Nishi (2010), is not used in the present analysis because the data set does not fully cover the SOWER campaign period and region.…”
Section: A2 Convective Penetrationmentioning
confidence: 99%