Japan Geoscience Union Meeting 2018

Presentation information

[JJ] Oral

A (Atmospheric and Hydrospheric Sciences) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS07] Stratosphere-troposphere Processes And their Role in Climate

Wed. May 23, 2018 9:00 AM - 10:30 AM A07 (Tokyo Bay Makuhari Hall)

convener:Shingo Watanabe(Japan Agency for Marine-Earth Science and Technology), Yoshio Kawatani(Japan Agency for Marine-Earth Science and Technology), Takashi Sekiya(国立研究開発法人 海洋研究開発機構, 共同), Kaoru Sato(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Chairperson:Kawatani Yoshio

9:45 AM - 10:00 AM

[AAS07-04] A study of gravity wave activities based on intensive radiosonde observations at Bengkulu during YMC-Sumatra 2017

★Invited Papers

*Takenari Kinoshita1, Ryuichi Shirooka1, Junko Suzuki1, Shin-Ya Ogino1, Suginori Iwasaki2, Kunio Yoneyama1 (1.Japan Agency for Marine-Earth Science and Technology, 2.National Defense Academy)

Keywords:gravity wave, meridioanl circulation

Gravity waves are generated from local region such as convection, topography, jet stream and fronts. Their activities affect the quasi-biennial and semiannual oscillations and general circulation in middle atmosphere. However, the scale of gravity waves is too broad to understand their characters and activities in detail. The purpose of this study is to clarify three-dimensional dynamical circulation driven by gravity waves around equatorial region.
The Campaign of Years of Maritime Continent-Sumatra (YMC-Sumatra) has been operated since 2017 to expedite the progress of improving understanding and prediction of local multi-scale variability of the maritime continent weather-climate system and its global impact. We use intensified radiosonde observation data at Bengkulu during December 2017 and report the analysis results of the relation between gravity wave activities and vertical structure of ozone.