Analysis and measurement of carbon dioxide exhaled from Sakurajima

2015 Fiscal Year Final Research Report

• Project/Area Number: 26610152
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Kagoshima University
• Principal Investigator: Ohashi Masafumi 鹿児島大学, 理工学域工学系, 准教授 (00381153)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 二酸化炭素 / カラム量 / 二酸化炭素存在比 / FTS / FES-C / OSA

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).

Free Research Field

大気分析および解析