| Budget Amount *help |
¥46,410,000 (Direct Cost: ¥35,700,000、Indirect Cost: ¥10,710,000)
Fiscal Year 2018: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2017: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2016: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2015: ¥24,960,000 (Direct Cost: ¥19,200,000、Indirect Cost: ¥5,760,000)
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| Outline of Final Research Achievements |
Volatile Organic Compounds (VOCs) are important trace gases that act as a fuel of photochemistry in the troposphere. The oceans play a key role in controlling a global budget of VOCs either as a source or a sink. Recent technological advancement enables us to make observations of seawater concentrations and air-sea exchange rate of VOCs. However, there is still a large uncertainty in our understanding of the role of global oceans, due to very limited observations. We customized a proton transfer reaction - time-of-flight mass spectrometer, and coupled with an air-sea equilibrator that can be deployed at a variety of marine observation platforms. The system was tested on a ship and overall evaluation was made. This will enable us to make systematic observations of VOCs dissolved in the ocean surface with a variety of marine platforms including research and commercial vessels.
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