Wind turbines in the coastal area of the Sea of Japan are frequently damaged by lightning especially in winter. To investigate features of lightning hitting wind turbines in this area, direct observation of lightning current at 27 wind turbines in Japan was carried out during 2008-2012 in the NEDO's project, placing stress on those in the coastal area of the Sea of Japan. 687 lightning current waveforms were recorded, and 99.4% turned out to be upward lightning. 98.7% were recorded during October to April.
J-STAGEがリニューアルされました！https://www.jstage.jst.go.jp/browse/-char/ja/
