Do Solar Cycles Share Spectral Properties with Tropical Cyclones that Occur in the Western North Pacific Ocean?
Understanding solar influences on extreme weather is important. Insight into the causes of extreme weather events, including the solar-terrestrial connection, would allow better preparation for these events and help minimize the damage caused by disasters that threaten the human population. In thi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
The Korean Space Science Society
2018-09-01
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| Series: | Journal of Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | http://janss.kr/journal/article.php?code=62899 |
| Summary: | Understanding solar influences on extreme weather is important. Insight into the causes of extreme weather events, including
the solar-terrestrial connection, would allow better preparation for these events and help minimize the damage caused by
disasters that threaten the human population. In this study, we examined category three, four, and five tropical cyclones that
occurred in the western North Pacific Ocean from 1977 to 2016. We compared long-term trends in the positions of tropical
cyclone occurrence and development with variations of the observed sunspot area, the solar North-South asymmetry, and
the southern oscillation index (SOI). We found that tropical cyclones formed, had their maximum intensity, and terminated
more northward in latitude and more westward in longitude over the period analyzed; they also became stronger during that
period. It was found that tropical cyclones cannot be correlated or anti-correlated with the solar cycle. No evidence showing
that properties (including positions of occurrence/development and other characteristics) of tropical cyclones are modulated
by solar activity was found, at least not in terms of a spectral analysis using the wavelet transform method. |
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| ISSN: | 2093-5587 2093-1409 |