Development and evaluation of a simple but powerful method for measuring atmospheric ice nucleating particles

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13570
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: National Institute of Polar Research
• Principal Investigator: TOBO Yutaka 国立極地研究所, 研究教育系, 助教 (60572766)
• Co-Investigator(Renkei-kenkyūsha): HIRASAWA Naohiko 国立極地研究所, 研究教育系, 助教 (10270422) ; KOBAYASHI Hiroshi 山梨大学, 大学院総合研究部, 准教授 (20313786) ; TAJIRI Takuya 気象庁気象研究所, 予報研究部, 主任研究官 (40414510)
• Research Collaborator: HIRANUMA Naruki West Texas A&M University, Department of Life, Earth and Environmental Sciences, Assistant Professor ; DEMOTT Paul J. Colorado State University, Department of Atmospheric Science, Senior Research Scientist
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 気象学 / エアロゾル－雲相互作用 / 氷晶核

Outline of Final Research Achievements

It is expected that the existence of ice nucleating particles (INPs) in the atmosphere has a significant impact on ice nucleation in clouds. However, because of cost issues and technical difficulties, the information on atmospheric INPs has been lacking. Here, we have tried to develop a new cold-stage-based droplet freezing technique. As a result, we could establish a new experimental system capable of measuring ice nucleating particles over a wide temperature range (about -30°C to 0°C).

Free Research Field

大気物理化学