A new map of the lava flow field of Nyamulagira (D.R. Congo) from satellite imagery

被引：29

作者：

Benoit, Smets ^{[1
]}

Christelle, Wauthier ^{[1
,2
]}

Nicolas, d'Oreye ^{[3
]}

机构：

[1] Royal Museum Cent Africa, Dept Geol, B-3080 Tervuren, Belgium

[2] Univ Liege, Dept ArGEnCo, B-4000 Liege, Belgium

[3] Natl Museum Nat Hist, Geophys Astrophys Dept, L-7256 Walferdange, Luxembourg

来源：

JOURNAL OF AFRICAN EARTH SCIENCES | 2010年 / 58卷 / 05期

关键词：

Nyamulagira; Nyamuragira; Map; Lava flow; Volume; Remote sensing; Multispectral; Radar; InSAR; Coherence; NYAMURAGIRA VOLCANO; CENTRAL ANDES; RADAR; ZAIRE; ERUPTION; KIVU; INTERFEROMETRY; SURFACE;

D O I：

10.1016/j.jafrearsci.2010.07.005

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Nyamulagira (3058 m a.s.l.), a volcano of the Virunga volcanic province in the western branch of the East African Rift, is Africa's most active volcano with one eruption every 2-4 years. It represents a hazard for the Virunga National Park and its vicinity. Despite such a frequent activity, Nyamulagira remains poorly studied. The only existing volcanological map was produced in the sixties by Thonnard et al. (1965). The occurrence of 19 eruptions since its publication makes it obsolete. In the present study we mapped the Nyamulagira lava flows from 1938 up to the last eruption to date in 2010 using optical (Landsat, ASTER) and radar (ENVISAT-ASAR, ERS, JERS) imagery. The results are integrated into a Geographical Information System (GIS) and coupled with additional data sources. GIS use makes the new database a flexible and easy-to-update tool for scientific purposes as well as for risk, environmental and humanitarian management. Here a new lava flow map was produced. Volumes of the successive lava flows and affected areas of the Virunga National Park were estimated. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：778 / 786

页数：9

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