Tracking the evolution of the summit lava dome of Merapi volcano, between 2018-2019, using DEMs obtained from TanDEM-X and Pleiades data
S Gremion, V Pinel, F Beauducel… - EGU General …, 2022 - ui.adsabs.harvard.edu
Located about 30 km North of the city of Yogyakarta on Java island, Merapi is considered
one of the most dangerous dome building stratovolcanoes, as about 2 million people live
less than 30 km away from the crater. Its recent eruptive activity consists in cyclic effusive
growth of viscous lava domes, followed by partial or total destruction of domes. Dome
destruction favors gravitational collapses (VEI 2) every 4-5 years, or bigger explosive
eruptions (VEI 3-4) every 50-100 years resulting in pyroclastic density currents (PDCs) …
one of the most dangerous dome building stratovolcanoes, as about 2 million people live
less than 30 km away from the crater. Its recent eruptive activity consists in cyclic effusive
growth of viscous lava domes, followed by partial or total destruction of domes. Dome
destruction favors gravitational collapses (VEI 2) every 4-5 years, or bigger explosive
eruptions (VEI 3-4) every 50-100 years resulting in pyroclastic density currents (PDCs) …
Tracking the evolution of the summit lava dome of Merapi volcano between 2018 and 2019 using DEMs derived from TanDEM-X and Pléiades data
At andesitic volcanoes, effusive lava flows and dome emplacement alternate with explosive,
sometimes very destructive events. It is thus crucial to obtain quantitative information on the
dome volume emplaced as well as on the extrusion rate. However, steep slopes and
continuous activity make it difficult to install field instruments near many volcano summits. In
this study, we take advantage of two high resolution remote-sensing datasets, Pléiades
(optical acquisitions in tri-stereo mode) and TanDEM-X (radar acquisitions in bistatic mode) …
sometimes very destructive events. It is thus crucial to obtain quantitative information on the
dome volume emplaced as well as on the extrusion rate. However, steep slopes and
continuous activity make it difficult to install field instruments near many volcano summits. In
this study, we take advantage of two high resolution remote-sensing datasets, Pléiades
(optical acquisitions in tri-stereo mode) and TanDEM-X (radar acquisitions in bistatic mode) …