The variations in the East Asian summer monsoon over the past 3 kyrs and the controlling factors
| العنوان: | The variations in the East Asian summer monsoon over the past 3 kyrs and the controlling factors |
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| المؤلفون: | Koji Seto, Kazuma Kohara, Minoru Ikehara, Katsura Yamada |
| المصدر: | Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019) Scientific Reports |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0301 basic medicine, Insolation, Multidisciplinary, δ18O, Science, Northern Hemisphere, Dominant factor, Monsoon, Article, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Geography, Climatology, East asian summer monsoon, Medicine, 030217 neurology & neurosurgery |
| الوصف: | The mechanisms driving the variations in the centennial-scale East Asian summer monsoon (EASM) remain unclear. Here, we use the δ18O records from adult ostracode shells to reconstruct the EASM variations over the last 3 kyrs in southwestern Japan. A common variation with a 200 yr periodicity among the Asian monsoonal regions was recognized between BC 800 and BC 100. Since then, neither a correlation between the EASM variation and solar activity or a common EASM variation through EASM regions has been identified. The evidence reveals that solar activity dominantly affected the centennial-scale EASM variations throughout Asian monsoonal regions until BC 100. Furthermore, factors other than solar activity that varied and differed in specific regions controlled the EASM intensity due to decreasing summer solar insolation in the Northern Hemisphere after BC 100. These relations indicate that the dominant factor that affects the EASM variations shifts according to the solar insolation intensity. |
| تدمد: | 2045-2322 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9119debd1005a3a34c16f12d9a57d78e https://doi.org/10.1038/s41598-019-41359-y |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....9119debd1005a3a34c16f12d9a57d78e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20452322 |
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