A5083492319- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Methane Hydrates and Related Phenomena
- Climate change and permafrost
- Geological Studies and Exploration
- Atmospheric and Environmental Gas Dynamics
- Arctic and Antarctic ice dynamics
- Hydrocarbon exploration and reservoir analysis
- Landslides and related hazards
- Geological formations and processes
- Winter Sports Injuries and Performance
- Marine and environmental studies
- Geological and Geophysical Studies
- Pleistocene-Era Hominins and Archaeology
- Polar Research and Ecology
- earthquake and tectonic studies
- Hydrology and Sediment Transport Processes
- Archaeology and Natural History
- Economic Growth and Development
- Geological and Geochemical Analysis
- Groundwater flow and contamination studies
- International Development and Aid
- Arctic and Russian Policy Studies
- Offshore Engineering and Technologies
- Reservoir Engineering and Simulation Methods
Centre for Arctic Gas Hydrate, Environment and Climate
2015-2024
UiT The Arctic University of Norway
2015-2024
Acoustics (Norway)
2023
NORCE Norwegian Research Centre
2023
University of Sheffield
2015-2016
Aberystwyth University
2009-2014
The Eurasian ice sheet complex (EISC) was the third largest mass during Last Glacial Maximum with a span of over 4500 km and responsible for around 20 m eustatic sea-level lowering. Whilst recent terrestrial marine empirical insights have improved understanding chronology, pattern rates retreat this vast sheet, concerted attempt to model deglaciation EISC honouring these new constraints is conspicuously lacking. Here, we apply first-order, thermomechanical model, validated against diverse...
Massive methane blow-outs may be responsible for clusters of kilometer-wide craters in the Barents Sea.
The Eurasian ice-sheet complex (EISC) was the third largest ice mass during Last Glacial Maximum (LGM), after Antarctic and North American sheets. Despite its global significance, a comprehensive account of evolution from independent nucleation centres to maximum extent is conspicuously lacking. Here, first-order, thermomechanical model, robustly constrained by empirical evidence, used investigate dynamics EISC throughout build-up configuration. flow model coupled reference climate applied...
Abstract Methane seepage from the upper continental slopes of Western Svalbard has previously been attributed to gas hydrate dissociation induced by anthropogenic warming ambient bottom waters. Here we show that sediment cores drilled off Prins Karls Foreland contain freshwater dissociating hydrates. However, our modeling indicates observed pore water freshening began around 8 ka BP when rate isostatic uplift outpaced eustatic sea-level rise. The resultant local shallowing and lowering...
Seafloor methane release due to the thermal dissociation of gas hydrates is pervasive across continental margins Arctic Ocean. Furthermore, there increasing awareness that shallow hydrate-related seeps have appeared enhanced warming Ocean bottom water during last century. Although it has been argued a hydrate gun could trigger abrupt climate change, processes and rates subsurface/atmospheric natural exchange remain uncertain. Here we investigate dynamics between stability environmental...
Abstract. Warm, subtropical-originating Atlantic water (AW) has been identified as a primary driver of mass loss across the marine sectors Greenland Ice Sheet (GrIS), yet specific processes by which this interacts with and erodes calving front tidewater glaciers is frequently modelled much speculated upon but remains largely unobserved. We present suite fjord salinity, temperature, turbidity versus depth casts along glacial runoff estimation from Rink Store glaciers, two major outlets...
Abstract Ice can sculpt extraordinary landscapes, yet the efficacy of, and controls governing, glacial erosion on geological timescales remain poorly understood contended, particularly across Polar continental shields. Here, we assimilate geophysical data with modelling of Eurasian Sheet — third largest Quaternary ice mass that spanned 49°N to 82°N decipher its erosional footprint during entire last ~100 ka cycle. Our results demonstrate extreme spatial temporal heterogeneity in subglacial...
Abstract Our understanding of processes relating to the retreat marine‐based ice sheets, such as West Antarctic Ice Sheet and tidewater‐terminating glaciers in Greenland today, is still limited. In particular, role stream instabilities oceanographic dynamics driving their collapse are poorly constrained beyond observational timescales. Over numerous glaciations during Quaternary, a sheet has waxed waned over Barents Sea continental shelf, characterized by number streams that extended shelf...
Research Article| January 01, 1910 Rock streams of Veta Peak, Colorado HORACE B. PATTON Search for other works by this author on: GSW Google Scholar Author and Article Information Publisher: Geological Society America Received: 29 Oct First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print 0016-7606 © GSA Bulletin (1910) 21 (1): 663–676. https://doi.org/10.1130/GSAB-21-663 history Cite View This Citation Add to Manager Share Icon Facebook Twitter LinkedIn Email Permissions Site PATTON;...
Parceling the anthropogenic and natural (geological) sources of fossil methane in atmosphere remains problematic due to a lack distinctive chemical markers for their discrimination. In this light, understanding distribution contribution potential geological is important. Here we present empirical observations hitherto undocumented, widespread extensive oil release from reservoirs Arctic Ocean. Methane fluxes >7000 seeps significantly deplete seawater, but nevertheless reach sea surface may...
Abstract The glacial isostatic adjustment (GIA) of the British Isles is complex due to interplay between local and non‐local signals. A number recent studies have modelled GIA response using relative sea‐level data. This study extends these previous analyses by output from a numerical glaciological model as input model. necessary step towards more realistic models, although there been similar for major late Pleistocene ice sheets, this first do so Isles. We test three reconstructions,...
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...
Iceland's periglacial realm is one of the most dynamic on planet, with active geomorphological processes and high weathering rates young bedrock resulting in sediment yields ongoing mass movement. Permafrost discontinuous highlands mountains over c. 800 m a.s.l, sporadic palsa mires central highlands. During late Pleistocene Holocene, environment varied considerably time space, dominated by glacial fluctuations processes. To evaluate dynamics permafrost Iceland since last deglaciation, we...
Abstract Strong compressive and shear stresses generated by glacial loading unloading have a direct impact on near‐surface geological processes. Glacial are constantly evolving, creating stress perturbations in the lithosphere that extend significant distances away from ice. In Arctic, periodic methane seepage faulting been recurrently associated with cycles. However, evolution of Arctic field its upper not investigated. Here, we compute space time induced North American, Eurasian Greenland...
Since the establishment of iC3 in July 2023, we can reflect on an exciting period marked by increasing activity within Centre. During this time significant growth, it has been both inspiring and motivating to see development a supportive stimulating research culture among our diverse team scientists across iC3´s partnership UiT The Arctic University Norway, Norwegian Polar Institute NORCE.
Abstract Information from former ice sheets may provide important context for understanding the response of today’s to forcing mechanisms. Here we present a reconstruction last deglaciation marine sectors Eurasian Ice Sheet, emphasising how retreat Norwegian Channel and Barents Sea streams led separation British-Irish Fennoscandian at c. 18.700 Kara-Barents Sea-Svalbard between 16.000 15.000 years ago. Combined with sheet modelling palaeoceanographic data, our shows that deglaciation, peak...