Japan Geoscience Union Meeting 2021

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[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS23] Mountain Science

Fri. Jun 4, 2021 10:45 AM - 12:15 PM Ch.13 (Zoom Room 13)

convener:Keisuke Suzuki(Research Center for Mountain Environment, Shinshu University), Yoshihiko Kariya(Department of Environmental Geography, Senshu University), Akihiko SASAKI(Department of Geography and Environmental Studies, Kokushikan University), Chiyuki Narama(Niigata University, Program of Field Research in the Environmental Sciences), Chairperson:Motoshi NISHIMURA(Arctic Environmental Research Center, National Institute of Polar Research)

11:15 AM - 11:30 AM

[MIS23-09] Cold air pool formed in Kamikochi, Northern Japan Alps

Sari Koyama1, Motoshi Nishimura2, Akihiko Sasaki3, *Keisuke Suzuki4 (1.Shinshu University, 2.National Institute of Polar Research, 3.Kokushikan University, 4.Research Center for Mountain Environment, Shinshu University)

Keywords:radiative cooling, travelling anticyclone, temperature inversion layer

At night when it is quiet and cloudless, radiative cooling forms a temperature inversion layer near the ground surface. The temperature inversion layer in the terrain such as basins and deep valleys is called a cold air pool. There are still many unexplained issues between the formation process of cold air pool and meteorological conditions. In this study, we discuss the meteorological conditions under which the patterns of each cold air pool are formed for the cold ait pool that are frequently formed in Kamikochi, Northern Japan Alps, which has deep valley topography.