IGB

Connexion

(Article of periodic en Anglais - 2014)

Document title

Spatial and temporal distribution of large volcanic eruptions from 1750 to 2010

Authors(s) and Affiliation(s)

HAO Z. (1) ; WANG H. (1 2) ; ZHENG J. (1) ;
(1) Key Lab. of Land Surface Pattern and Simulation, Inst. of Geographic Sciences and Natural Ressources Research, CAS, Beijing, CHINE
(2) Univ. of Chinese Academy of Sciences, Beijing, CHINE

Abstract

Using the dataset provided by the Smithsonian Institution's Global Volcanism Program, the AA. 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°N-10°S). Large volcanic eruptions were concentrated at 1000–2000 m elevations and in the months of January and April. 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.

Source

Article of periodic

published at : Journal of geographical sciences. Acta geographica sinica / ISSN 1009-637X

Editor : CHINE

Millesime : 2014, vol. 24, no6 [pp. 1060-1068]

Bibliographic references : 22 ref.

Collation : 4 fig.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-014-1138-7

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28944349 : Permanent link - XML version
Powered by Pxxo