Bow and stern waves triggered by the Moon's shadow boat

J. Y. Liu, Y. Y. Sun, Y. Kakinami, C. H. Chen, C. H. Lin, H. F. Tsai

研究成果: 雜誌貢獻期刊論文同行評審

35 引文 斯高帕斯(Scopus)


It has been predicted that the Moon's shadow, the cooling region, sweeping over the Earth's atmosphere with a supersonic speed could trigger bow waves since 1970. The longest total solar eclipse within next hundred years occurring on 22 July 2009 sweeps over the Eastern Asia region during the noontime period. An analysis of the Hilbert-Huang transform (HHT) is applied to study ionospheric TEC (total electron content) derived from ground-based GPS receivers in Taiwan and Japan. We not only find the feature of the predicted bow wave but also the stern wave on the equator side of the eclipse path, as well as the stern wake right behind the Moon's shadow boat. The bow and stern waves are formed by acoustic gravity waves of periods about 3 and/or 5 minutes traveling equatorward with a phase speed of about 100 m/s in the ionosphere.

期刊Geophysical Research Letters
出版狀態已出版 - 1 9月 2011


深入研究「Bow and stern waves triggered by the Moon's shadow boat」主題。共同形成了獨特的指紋。