MarcP
@marcperuz.bsky.social
Reposted by MarcP
Pre- and post-eruption visible imagery of #HayliGubbi from #Sentinel-2, showing tephra deposits and 2 new craters. The latter could be eruption vents and/or formed by post-eruptive subsidence. Looks like the pre-existing crater was enlarged by the eruption. @esa.int
November 25, 2025 at 3:45 PM
Pre- and post-eruption visible imagery of #HayliGubbi from #Sentinel-2, showing tephra deposits and 2 new craters. The latter could be eruption vents and/or formed by post-eruptive subsidence. Looks like the pre-existing crater was enlarged by the eruption. @esa.int
Reposted by MarcP
Sentinel-5P #TROPOMI measurements at ~11:00 UTC show most of the SO₂ emissions from #HayliGubbi spreading east in the upper troposphere. Plume contains ~44 kilotons of SO₂ (~0.04 Tg).
November 23, 2025 at 5:53 PM
Sentinel-5P #TROPOMI measurements at ~11:00 UTC show most of the SO₂ emissions from #HayliGubbi spreading east in the upper troposphere. Plume contains ~44 kilotons of SO₂ (~0.04 Tg).
My latest research on rockfall propagation estimation. Let's go back to basics: what geometric descriptors (such as the angle of reach or drop height) are best suitted for propagation estimation? www.sciencedirect.com/science/arti... @brgm.fr
Empirical quantification of rockfall propagation probability: Robust determination of an appropriate topographic descriptor
The propagation of rockfalls can be assessed through numerical simulations. However, preliminary hazard assessments on representative topographic prof…
www.sciencedirect.com
October 2, 2025 at 7:54 AM
My latest research on rockfall propagation estimation. Let's go back to basics: what geometric descriptors (such as the angle of reach or drop height) are best suitted for propagation estimation? www.sciencedirect.com/science/arti... @brgm.fr