NH
Natural Hazards

Geomorphology

Climate Change: is Viticulture under threat?

Climate Change:  is Viticulture under threat?

In the afternoon of August 29, 2020, an intense supercell, which is a thunderstorm characterized by the presence of a deep, persistently rotating updraft, affected the province of Verona in the north of Italy (Figure 1). It was not the first event of this kind; several other events, including tornado episodes, had already occurred during summer 2020. Here the video of the downburst recorded during ...[Read More]

Alpine rock instability events and mountain permafrost

Alpine rock instability events and mountain permafrost

Rockfalls, rock slides and rock avalanches in high mountains The terms rockfall, rock avalanche and rockslide are often used interchangeably. Different authors have proposed definitions based on volume thresholds, but the establishment of fixed boundaries can be tricky. Rockfall can be defined as the detachment of a mass of rock from a steep rock-wall, along discontinuities and/or through rock bri ...[Read More]

InSAR Norway: the big eye on Norwegian unstable rock slopes

InSAR Norway: the big eye on Norwegian unstable rock slopes

Marie Keiding is a researcher in the Geohazard and Earth Observation team at the Geological Survey of Norway. Together with her colleague, John Dehls, who is leading the project, she works to develop and operate the new mapping service called InSAR Norway. Before we start, let’s briefly describe what is InSAR. First, the Synthetic Aperture Radar (SAR) is a day and night operational imaging system ...[Read More]

Anthropogenic changes of the landscape and natural hazards

Anthropogenic changes of the landscape and natural hazards

In this post, I had the pleasure to interview Paolo Tarolli, a very active member of the EGU community and a brilliant scientist. He is Professor in Water Resources Management and Integrated Watershed Management, and head of Earth Surface Processes and Society research group at the Università degli Studi di Padova (Italy). He has a PhD in Environmental Watershed Management and Geomatics and has wo ...[Read More]