TY - JOUR
T1 - A new map of the lava flow field of Nyamulagira (D.R. Congo) from satellite imagery
AU - Smets, Benoît
AU - Wauthier, Christelle
AU - d'Oreye, Nicolas
N1 - Funding Information:
The current study was carried out in the frame of the projects “ SAMAAV: Study and Monitoring of Active African Volcanoes ” (funded by the Belgian Federal Science Policy) and “ GORISK: A multi-approach tool for the volcanic risk management of the Goma region (North Kivu) ” (funded by the Belgian Federal Science Policy (SR/00/113) and the National Research Fund of Luxembourg (FNR/STEREOII/06/01)). SAR data are provided in the frame of the European Space Agency (ESA) Category-1 Project No. 3224 and ESA-JAXA (Japanese Space Agency) Project No. 3690. Precise orbits are provided by the Delft Institute of Earth Observation and Space Systems (DEOS) and ESA. Interferograms are computed with the DORIS (TUDelft) and the ROI-PAC (JPL/Caltech) open source softwares. SRTM digital elevation models are provided by the US Geological Survey. We thank J. Lavreau, F. Kervyn and M. Kervyn for helpful comments. We also thank S.A. Carn and G.G.J. Ernst for their review of the manuscript.
PY - 2010/12
Y1 - 2010/12
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jafrearsci.2010.07.005
DO - 10.1016/j.jafrearsci.2010.07.005
M3 - Article
AN - SCOPUS:78149471193
SN - 1464-343X
VL - 58
SP - 778
EP - 786
JO - Journal of African Earth Sciences
JF - Journal of African Earth Sciences
IS - 5
ER -