2013 Fiscal Year Final Research Report
High resolution lidar observation of tropopause ozone in the equatorial area
| Project/Area Number |
23340143
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
NAGASAWA Chikao 首都大学東京, システムデザイン研究科, 教授 (80145664)
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| Co-Investigator(Kenkyū-buntansha) |
SHIBATA Yasukuni 首都大学東京, システムデザイン研究科, 准教授 (10305419)
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| Co-Investigator(Renkei-kenkyūsha) |
ABO Makoto 首都大学東京, システムデザイン研究科, 教授 (20167951)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | オゾン / ライダー / 赤道 / 対流圏界面 |
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| Research Abstract |
Stratosphere-troposphere exchange is important for the budget of ozone in the lower stratosphere as well as in the troposphere. Upward transport occurs in the tropical region, but it was not observed directly. The exact mechanism controlling the transport is not clear. We have installed DIAL (differential absorption lidar) system for high-resolution measurements of vertical ozone profiles in the equatorial tropopause region over Kototabang, Indonesia and have observed ozone profiles in the tropopause region. We will contribute to the elucidation of the climate change by getting observational information about high-resolution ozone density profiles, and the wave-propagation and material transportation using ozone as a tracer from the troposphere to the lower stratosphere over the equator.
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