• Cold Air Mass Analysis of the Record-Breaking Cold Surge Event over East Asia in January 2016 

      Yamaguchi, Junpei; Kanno, Yuki; Chen, Guixing; Iwasaki, Toshiki (Peer reviewed; Journal article, 2019)
      An extreme cold surge event caused record-breaking low temperatures in East Asia during 20-25 January 2016. The planetary- and synoptic-scale feature of the event is investigated quantitatively using the isentropic cold ...
    • Indicators and trends of polar cold airmass 

      Kanno, Yuki; Walsh, John E.; Abdillah, Muhammad R; Yamaguchi, Junpei; Iwasaki, Toshiki (Journal article; Peer reviewed, 2019)
      Trends and variations in the amount of cold airmass in the Arctic and the Northern Hemisphere are evaluated for the 60 year period, 1959–2018. The two indicators are (1) polar cold air mass (PCAM), which is the amount of ...