A5020211338- Landslides and related hazards
- Cryospheric studies and observations
- Flood Risk Assessment and Management
- Fire effects on ecosystems
- Tree Root and Stability Studies
- Geological and Geophysical Studies Worldwide
- Rangeland Management and Livestock Ecology
- Soil erosion and sediment transport
- Geological and Geochemical Analysis
- Paleontology and Stratigraphy of Fossils
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Agriculture and Rural Development Research
- Aquatic Ecosystems and Biodiversity
- Geochemistry and Geologic Mapping
- Geological formations and processes
- African Botany and Ecology Studies
- Hydrology and Sediment Transport Processes
- Precipitation Measurement and Analysis
- Meteorological Phenomena and Simulations
- Hydrology and Watershed Management Studies
Royal Museum for Central Africa
2020-2024
Université Officielle de Bukavu
2014-2024
Ghent University
2021-2024
Abstract Accurate precipitation data are fundamental for understanding and mitigating the disastrous effects of many natural hazards in mountainous areas. Floods landslides, particular, potentially deadly events that can be mitigated with advanced warning, but accurate forecasts require timely estimation precipitation, which is problematic regions such as tropical Africa limited gauge measurements. Satellite rainfall estimates (SREs) great value areas, rigorous validation required to...
Landslides can lead to high impacts in less developed countries, particularly tropical environments where a combination of intense rainfall, active tectonics, steep topography, and population density be found. However, the processes controlling landslide initiation their evolution through time remains poorly understood. Here we show relevance use multi-temporal differential radar interferometric (DInSAR) technique characterise ground deformations associated with landslides rapidly-expanding...
The conversion of natural ecosystems into agricultural or urban areas can alter geomorphological processes, particularly in landslide-prone regions. Landslides such be triggered by events like heavy rainfall earthquakes, as well human activities deforestation and unplanned urbanization. Their impacts severe, resulting significant socio-economic damage. Uvira Territory, the western part East African Rift Valley, frequently experiences these events. It is located between Ruzizi Plain to east...
<p>Uvira is a rapidly growing city of about 600,000 inhabitants in DR Congo. Squeezed between the shore Lake Tanganyika and steep mountains hillslopes, under influence tropical climate, familiar with flash floods. Nevertheless, impacts flood event April 2020 have been unprecedented last decades. Debris-rich floods led to at least 43 deaths, nearly 200 injuries, more than 5,500 houses destroyed 70,000 people made homeless. Dozens socio-economic infrastructures were damaged...
The expansion of informal and uncontrolled urban landscapes commonly overlooks the natural constraints from environment. This is particularly true for environments affected by landslides. Landslide risk assessment relevant planning disaster reduction (DRR) strategy requires highly spatially-resolved datasets approaches. It also that both physical social local aspects are studied in an interdisciplinary manner. Such hazard remains challenging under-researched many regions, especially low-...
<p>During the Anthropocene, impact of humans on Earth surface processes has increased exponentially, often surpassing importance natural drivers. Also in mountainous areas, landslide mobilization rates are exacerbated by human disturbances landscape such as deforestation, road constructions, and mining processes. However, investigating these interactions remains difficult many regions due to a lack sufficiently long observation periods, preferably over large area, so that...
<p>Tropical environments favour chemical weathering and regolith development. Weathering induces textural, mineralogical changes in rocks, modifying their strength thus affecting slope stability. Degree of is, however, not only a function climatic conditions, but is also influenced by e.g. bedrock composition structure, exposure length intensity, angle. To investigate the role rock type on landslide occurrence, we focus Ruzizi Gorge Kivu Rift segment western branch East African...
<p>Tropical mountainous regions are commonly identified as landslide hotspots with particularly vulnerable populations. Anthropogenic factors assumed to play a role in the occurrence and impact of landslides these populated regions, yet relative importance human-induced remains poorly documented. In this work, we explore forest cover dynamics, agricultural land management practices, urbanisation, roads, mining/quarrying activities on their associated risk North...
<p>Slow-moving landslides exhibit persistent but non-uniform motion at low rates which makes them exceptional natural laboratories to study the mechanisms that control dynamics of unstable hillslopes. Here we leverage 4.5+ years satellite-based radar and optical remote sensing data quantify kinematics a slow-moving landslide in tropical rural environment Kivu Rift, with unprecedented high spatial temporal resolution. We measure using sub-pixel image correlation methods invert...