Spatial and temporal distribution of large volcanic eruptions from 1750 to 2010
文献类型：SCI/SSCI论文
| 作者 | Hao Z. X. ; Wang H. ; Zheng J. Y. |
| 发表日期 | 2014 |
| 关键词 | large volcanic eruption spatial distribution interdecadal variation |
| 英文摘要 | Using the dataset provided by the Smithsonian Institution's Global Volcanism Program, we have extracted the large volcanic eruptions (volcanic explosivity index >= 4) from the period 1750-2010 and have then analyzed the main characteristics of large volcanic eruptions since 1750 according to their geographic latitudes, their elevations, and the years and months in which they occurred. The results show that most large volcanic eruptions were located around the margins of the Pacific Ocean and the islands of Sumatra and Java, especially in the equatorial regions (10 degrees N-10 degrees S). Large volcanic eruptions were concentrated at 1000-2000 m elevations and in the months of January and April. There were more eruptions in the summer half-year (from April to September) than in the winter half-year (from October to the next March): Large volcanic eruptions have interdecadal fluctuations, including cycles of 15-25 years and 35-50 years, which were detected by Morlet wavelet analysis, with the fluctuations being more frequent after 1870 than before. During the periods 1750-1760, 1776-1795,1811-1830,1871-1890,1911-1920 and 1981-1995, there were relatively many large volcanic eruptions. |
| 出处 | Journal of Geographical Sciences |
| 卷 | 24 |
| 期 | 6 |
| 页 | 1060-1068 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1009-637X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29851]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Hao Z. X.,Wang H.,Zheng J. Y.. Spatial and temporal distribution of large volcanic eruptions from 1750 to 2010. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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