5:15 PM - 6:45 PM
[MIS11-P01] Weather trends in the southern part of the Northern Japan Alps brought about by the pressure pattern in the summer of 2023
Keywords:pressure pattern, convective clouds, high atmospheric pressure, mountainous topography
In the summer of 2023, a distinctive weather trend was observed in the Yari Hotaka Mountain Range, in which a certain pattern of weather repeats over a long period of time, unlike in other summers. It was sunny every day in the early morning. The weather often changed in this order: convective clouds began to form earlier than usual, and by midday they had developed into cumulonimbus clouds and lightning. Of particular note are the number of days with early morning sunshine.
On the other hand, the Jonen Mountain Range, located on the east side of the Yari Hotaka Mountain Range, was more prone to convective clouds than usual, and was covered in clouds from early morning every day.
This is thought to be due to the location, strength and persistence of the high atmospheric pressure system this summer, and the mountainous topography of the southern part of the Northern Japan Alps.
This characteristic weather trend will be clarified using meteorological data observed at high altitudes by the Shinshu University Mountain Environment Research Center.
On the other hand, the Jonen Mountain Range, located on the east side of the Yari Hotaka Mountain Range, was more prone to convective clouds than usual, and was covered in clouds from early morning every day.
This is thought to be due to the location, strength and persistence of the high atmospheric pressure system this summer, and the mountainous topography of the southern part of the Northern Japan Alps.
This characteristic weather trend will be clarified using meteorological data observed at high altitudes by the Shinshu University Mountain Environment Research Center.