| Project/Area Number |
26610152
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Kagoshima University |
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Principal Investigator |
Ohashi Masafumi 鹿児島大学, 理工学域工学系, 准教授 (00381153)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 二酸化炭素 / カラム量 / 二酸化炭素存在比 / FTS / FES-C / OSA / 温室効果ガス / カラム濃度計測 / 桜島 / 火山 / 観測機器開発 / 精度向上 / 大気モデル / 吸収スペクトル / 温室効果ガス計測 / 濃度データ解析 / 並列計算 |
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| Outline of Final Research Achievements |
The comparison involved operating the FES-C in parallel with a high resolution Fourier transform spectroscopy (FTS) situated at National Institute for Environment Studied, Japan. The difference of CO2 mixing ratio from FTS and FES-C was estimated to be ±2ppm. We measured the atmospheric CO2 by FES-C and OSA in Kagoshima and Tokyo Japan and ParankaRaya Indonesia. We setuped the OSA system and observed a CO2 mixing ratio in Kagoshima, where is near Sakurajima volcano. We observed the small variation of CO2 mixing ratio in Kagoshima city. We estimated to be 2.1 ppm per year the annual trend of CO2 mixing ratio in Tokyo in Japan, and cleared the increase in forest fire during the dry season raised the rise of CO2 mixing ratio by the observation in Indonesia. We improved on various types of Voigt algorithm with GPU boards ( c2075 and K20), and simulated rapidly CO2 spectra at about 9 times compared to the parallel processing the multi-CPU (6-cell).
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