A5057825476- Cryospheric studies and observations
- Climate change and permafrost
- Landslides and related hazards
- Geology and Paleoclimatology Research
- Winter Sports Injuries and Performance
- Polar Research and Ecology
- Arctic and Antarctic ice dynamics
- Flood Risk Assessment and Management
- Hydrology and Watershed Management Studies
- Methane Hydrates and Related Phenomena
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Microbial Community Ecology and Physiology
- Climate Change Communication and Perception
- Plant and animal studies
- Environmental Education and Sustainability
- Geochemistry and Geologic Mapping
- Hydrology and Sediment Transport Processes
- Disaster Management and Resilience
- Wildlife Ecology and Conservation
- Icing and De-icing Technologies
- Scientific Research and Discoveries
- Environmental and Cultural Studies in Latin America and Beyond
- Atmospheric and Environmental Gas Dynamics
- Risk Perception and Management
University of Dundee
2017-2025
Aberystwyth University
2008-2024
Planetary Science Institute
2024
British Geological Survey
2021
University of Minnesota
2021
United States Geological Survey
2021
University of Nottingham
2021
Schlumberger (British Virgin Islands)
2020
Manchester Metropolitan University
2013-2016
V. B. Sochava Institute of Geography
2010-2011
A deadly cascade catastrophic landslide in Uttarakhand state India on February 2021 damaged two hydropower plants, and more than 200 people were killed or are missing. Shugar et al. describe the of events that led to this disaster. massive rock ice avalanche roared down a Himalayan valley, turning into debris flow upstream from first plants. The sequence highlights increasing risk Himalayas caused by increased warming development. Science , abh4455, issue p. 300
Abstract. Supraglacial, moraine-dammed and ice-dammed lakes represent a potential glacial lake outburst flood (GLOF) threat to downstream communities in many mountain regions. This has motivated the development of empirical relationships predict volume given measurement surface area obtained from satellite imagery. Such are based on notion that depth, scale predictably. We critically evaluate performance these existing by examining global database depths, areas volumes. Results show depth...
Abstract Many Karakoram glaciers periodically undergo surges during which large volumes of ice and debris are rapidly transported downglacier, usually at a rate 1–2 orders magnitude greater than quiescence. Here we identify eight recent in the region map their surface velocities using cross‐correlation feature tracking on optical satellite imagery. In total, present 44 velocity data sets, show that generally short‐lived, lasting between 3 5 years most cases, have rapid buildup relaxation...
Abstract. Glaciers of the Bolivian Andes represent an important water resource for Andean cities and mountain communities, yet relatively little work has assessed changes in their extent over recent decades. In many regions, glacier recession been accompanied by development proglacial lakes, which can pose a glacial lake outburst flood (GLOF) hazard. However, no studies have such lakes Bolivia despite GLOF incidents here. Our mapping from satellite imagery reveals overall areal shrinkage...
Abstract Glaciers are highly effective agents of erosion that have profoundly shaped Earth’s surface, but there is uncertainty about how glacial should be parameterised in landscape evolution models. Glacial rate usually modelled as a function glacier sliding velocity, the empirical basis for this relationship weak. In turn, climate assumed to control velocity and hence erosion, too lacks scrutiny. Here, we present statistically robust relationships between rates, velocities, from global...
Himalayan glaciers are undergoing rapid mass loss but rates of contemporary change lack long-term (centennial-scale) context. Here, we reconstruct the extent and surfaces 14,798 during Little Ice Age (LIA), 400 to 700 years ago. We show that they have lost at least 40 % their LIA area between 390 586 km3 ice; 0.92 1.38 mm Sea Level Equivalent. The rate ice since has been - 0.011 0.020 m w.e./year, which is an order magnitude lower than reported in literature. Rates depend on monsoon...
Abstract. Glacial lake outburst floods (GLOFs) are among the most concerning consequences of retreating glaciers in mountain ranges worldwide. GLOFs have attracted significant attention amongst scientists and practitioners past 2 decades, with particular interest physical drivers mechanisms GLOF hazard socioeconomic other human-related developments that affect vulnerabilities to events. This increased research focus on is reflected gradually increasing number papers published annually. study...
Assessing the extent to which glacial lake outburst floods (GLOFs) are increasing in frequency modern times and whether their incidence is driven by anthropogenic climate change requires historical context. However, progress on this issue hampered incomplete GLOF inventories, especially remote mountain regions. Here, we exploit high-resolution, multi-temporal satellite aerial imagery, documentary data identify events across glacierized Cordilleras of Peru Bolivia, using a set diagnostic...
Abstract Size is a fundamental property of landslides, but it described inconsistently within the scientific literature. There currently no widely adopted size classification system applicable to all landslide types. A Scopus database search shows most used descriptor term large , refer landslides with volumes spanning ten orders magnitude. Some descriptors are unintuitive or potentially misleading (e.g. massive which describes material property). We argue that formal scheme would encourage...
Abstract As the world’s glaciers recede in response to a warming atmosphere, change magnitude and frequency of related hazards is expected. Among most destructive are glacier lake outburst floods (GLOFs), their future evolution concerning for local populations sustainable development policy. Central this better understanding triggers. There long‐standing assumption that earthquakes major GLOF trigger, seismic activity consistently included as key hazard assessment criterion. Here, we provide...
Glacier bed overdeepenings are ubiquitous in glacier systems and likely exert significant influence on ice dynamics, subglacial hydrology, stability. Understanding of overdeepening formation evolution has been hampered by an absence quantitative empirical studies their distribution morphology, with process insights having drawn largely from theoretical or numerical studies. To address this shortcoming, we first map the potential beneath Antarctic Greenland sheets using a GIS-based algorithm...
The Bolivian Andes have experienced sustained and widespread glacier mass loss in recent decades. Glacier recession has been accompanied by the development of proglacial lakes, which pose a glacial lake outburst flood (GLOF) risk to downstream communities infrastructure. Previous research identified three potentially dangerous lakes Andes, but no attempt yet made model GLOF inundation from these lakes. We generated 2-m resolution DEMs stereo tri-stereo SPOT 6/7 satellite images drive...
Abstract Climate change has implications for water resources by increasing temperature, shifting precipitation patterns and altering the timing of snowfall glacier melt, leading to shifts in seasonality river flows. Here, Soil & Water Assessment Tool was run using downscaled temperature projections from five global climate models (GCMs) their multi-model mean estimate potential impact on balance components sub-basins Upper Indus Basin (UIB) under two emission (RCP4.5 RCP8.5) future...
Continuity of sediment transfer through glacial systems is essential to maintain subglacial bedrock erosion, yet at temperate glaciers with overdeepened beds, where fluvial transport should be greatly limited by adverse slopes, remains poorly understood. Complex multiple processes in has been indicated the presence large frontal moraine systems, supraglacial debris mixed origin, thick basal ice sequences, and englacial thrusts eskers. At Svínafellsjökull, comprising decimetre-thick...
Glacial landsystems in the high-Arctic have been reported to undergo geomorphological transformation during deglaciation. This research evaluates moraine evolution over a decadal timescale at Midtre Lovénbreen, Svalbard. work is of interest because glacial landforms developed Svalbard used as an analogue for Pleistocene mid-latitude glaciation. Ground penetrating radar was investigate subsurface characteristics moraines. To determine surface change, LiDAR topographic data set (obtained 2003)...
Glacier retreat in northern latitudes exposes new landscapes that may develop soils and ecosystems, which turn sequester carbon serve as a negative climate change feedback. Proglacial soil development landscape evolution were investigated using transects from three high-latitude glacial systems (Tarfala, Sweden; Vatnajökull, Iceland; Zackenberg, Greenland). Soil samples analysed for organic (OC) concentration, bacteriohopanepolyol biomarkers (BHPs, membrane lipids trace major microbial...
Abstract. Glacierised Peruvian mountain ranges are experiencing accelerated, climate-change-driven glacier ice loss. Peru's second highest range, the Cordillera Huayhuash, has lost about 40 % (∼ 34 km2) of its cover since 1970s. Newly exposed landscapes prone to a number hazard processes including formation and evolution glacial lakes, changing stability conditions slopes, rapid mass movements. In this study, we integrate analysis meteorological data, remotely sensed images field...