2017 Fiscal Year Final Research Report
Development of a technique of measuring CO flux using a semiconductor laser
| Project/Area Number |
16K12583
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Environmental dynamic analysis
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
植山 雅仁 大阪府立大学, 生命環境科学研究科, 准教授 (60508373)
|
|---|
| Project Period (FY) |
2016-04-01 – 2018-03-31
|
| Keywords | レーザー分光法 / 一酸化炭素 / フラックス |
|---|
| Outline of Final Research Achievements |
A new technique for measuring atmospheric carbon monoxide (CO) flux near boundary layer has been developed, because CO is a major atmospheric pollutant in the urban atmosphere. Since the typical concentration of CO in the urban atmosphere is about several hundreds ppb and below, we utilized a semiconductor laser-based high-sensitive spectroscopy technique for in-situ and real-time detection of atmospheric CO. The laser spectrometer has been combined with a relaxed eddy accumulation (REA) equipment that has also been developed in this study, in which the REA approach is well-known as one of the major micrometeorological techniques for measuring the ecosystem CO2 flux. We made a performance test of our system by observations of urban air in Sakai, Osaka. This study has successfully revealed temporal variations of CO flux in the urban atmosphere.
|
| Free Research Field |
大気化学
|
