| Budget Amount *help |
¥22,880,000 (Direct Cost: ¥17,600,000、Indirect Cost: ¥5,280,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
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| Outline of Final Research Achievements |
Arctic mixed-phase clouds composed of both supercooled liquid droplets and ice crystals occur frequently in the lower troposphere throughout the year and have large impacts on the Arctic weather, climate, and ecosystem. In this work, we have conducted filed measurements of ice nucleating particles (INPs) in Svalbard, which is known as a frequent occurrence region of Arctic mixed-phase clouds. Our measurements at the Zeppelin Observatory in Svalbard revealed that the INP number concentrations in summertime were roughly one order of magnitude higher than those in wintertime. Our results further suggested that the enhanced INP number concentrations in summertime were probably caused by the emission of high-latitude dusts having remarkably high ice nucleating ability from the Svalbard region and/or its surroundings.
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