A5002184273- Cryospheric studies and observations
- Winter Sports Injuries and Performance
- Climate change and permafrost
- Landslides and related hazards
- Geology and Paleoclimatology Research
- Arctic and Antarctic ice dynamics
- Polar Research and Ecology
- Nutritional Studies and Diet
- Geological formations and processes
- Geological and Geochemical Analysis
- Methane Hydrates and Related Phenomena
- Freshwater macroinvertebrate diversity and ecology
- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Remote Sensing and LiDAR Applications
- Obesity, Physical Activity, Diet
- Species Distribution and Climate Change
- Climate variability and models
- Optical measurement and interference techniques
- Global Public Health Policies and Epidemiology
- Aeolian processes and effects
- Scientific Research and Discoveries
- Geological Studies and Exploration
- Geophysical Methods and Applications
- High Altitude and Hypoxia
University of York
2014-2025
University of Hull
2005-2009
University of Leeds
2004-2007
Swansea University
2007
University of Wales
2007
University of Bristol
2003-2007
Aberystwyth University
2007
University of Cambridge
2003
Abstract. We present Bedmap2, a new suite of gridded products describing surface elevation, ice-thickness and the seafloor subglacial bed elevation Antarctic south 60° S. derived these using data from variety sources, including many substantial surveys completed since original Bedmap compilation (Bedmap1) in 2001. In particular, Bedmap2 ice thickness grid is made 25 million measurements, over two orders magnitude more than were used Bedmap1. most parts Antarctica landscape visible much...
Abstract. We present Bedmap2, a new suite of gridded products describing surface elevation, ice-thickness and the seafloor subglacial bed elevation Antarctic south 60° S. derived these using data from variety sources, including many substantial surveys completed since original Bedmap compilation (Bedmap1) in 2001. In particular, Bedmap2 ice thickness grid is made 25 million measurements, over two orders magnitude more than were used Bedmap1. most parts Antarctica landscape visible much...
Abstract This paper reports on the use of a small unmanned aerial vehicle (sUAV) carrying standard compact camera, to construct high resolution orthomosaic (OM) and digital elevation model (DEM) over lower reaches glacier Midtre Lovénbreen, Svalbard. Structure from Motion (SfM) techniques were used build OM DEM, together these reveal insights into nature supra‐glacial drainage. Major meandering drainage pathways show clear dynamism, via meander cutoffs abandoned channels. In addition,...
Background Malnutrition linked to noncommunicable diseases presents major health problems across Europe. The World Health Organisation encourages countries conduct national dietary surveys obtain data inform public policies designed prevent diseases. Methods Data on 27334 participants aged 19-64y were harmonised and pooled survey datasets from 12 the WHO European Region. Weighted mean nutrient intakes age-standardised using Eurostat 2013 Standard Population. Associations between...
Abstract. One of the key components this research has been mapping Antarctic bed topography and ice thickness parameters that are crucial for modelling flow hence predicting future loss ensuing sea level rise. Supported by Scientific Committee on Research (SCAR), Bedmap3 Action Group aims not only to produce new gridded maps international scientific community, but also standardize make available all geophysical survey data points used in producing Bedmap products. Here, we document latest...
Abstract We present Bedmap3, the latest suite of gridded products describing surface elevation, ice-thickness and seafloor subglacial bed elevation Antarctic south 60 °S. Bedmap3 incorporates adds to all post-1950s datasets previously used for Bedmap2, including 84 new aero-geophysical surveys by 15 data providers, an additional 52 million points 1.9 line-kilometres measurement. These efforts have filled notable gaps in major mountain ranges deep interior East Antarctica, along West...
Abstract Digital elevation models (DEMs) of the bed and surface polythermal Midre Lovénbreen, Svalbard, are used to identify changes in glacier geometry between 1977 1995. The calculated mean annual mass balance (−0·61 m water equivalent (w.e.) a −1 ) is more negative than that derived from field measurements (−0·35 w.e. ), although error associated with this value (±0·7 suggests difference may be accounted for by errors. However, similar discrepancies DEM‐based field‐based have been...
The rheology of ice is strongly controlled by its liquid water content. Since content and distribution also exert a strong control on radar propagation velocity attenuation, this provides potential remote technique for assessing ice-water A suite surface ground-penetrating (GPR) surveys have been undertaken two glaciers, Tsanfleuron Glacier in the European Alps Bakaninbreen, Svalbard order to determine their variation with depth. Common-offset profiling shows both glaciers two-layered...
Research Article| January 01, 2014 The Ellsworth Subglacial Highlands: Inception and retreat of the West Antarctic Ice Sheet Neil Ross; Ross † 1School Geography, Politics Sociology, Newcastle University, upon Tyne, NE1 7RU, UK †E-mail: neil.ross@ncl.ac.uk Search for other works by this author on: GSW Google Scholar Tom A. Jordan; Jordan 2British Survey, Cambridge CB3 0ET, Robert G. Bingham; Bingham 3School Geosciences, University Edinburgh, Edinburgh EH8 9XP, Hugh F.J. Corr; Corr Fausto...
Abstract. Repeat-pass ICESat altimetry has revealed 124 discrete surface height changes across the Antarctic Ice Sheet, interpreted to be caused by subglacial lake discharges (surface lowering) and inputs uplift). Few of these active lakes have been confirmed radio-echo sounding (RES) despite several attempts (notable exceptions are Lake Whillans three in Adventure Subglacial Trench). Here we present targeted RES radar altimeter data from an "active lake" location within upstream Institute...
We present a detailed analysis of bed roughness beneath Institute and Möller Ice Streams, west Antarctica, using radio-echo sounding data (RES) acquired in the austral summer 2010/11. assess two-parameter approach also directionality relative to present-day ice flow. Our work highlights wealth additional information that resides analyses roughness. Employing these multiple approaches we show spatially variable patterns are partly consequence ability flowing not only smooth but redistribute...
Abstract This paper presents new methods of estimating the aerodynamic roughness ( z 0 ) glacier ice directly from three‐dimensional point clouds and digital elevation models (DEMs), examines temporal variability , first fully distributed map estimates across ablation zone an Arctic glacier. The surfaces is important component energy balance meltwater runoff through its influence on turbulent fluxes latent sensible heat. In a warming climate these are predicted to become more significant in...
Recent studies have aroused concerns over the potential for ice draining Weddell Sea sector of West Antarctica to figure more prominently in sea level contributions should buttressing from Filchner-Ronne Ice Shelf diminish.To improve understanding how stream dynamics there evolved through Holocene, we interrogate radio echo sounding (RES) data across catchments Institute and Möller Streams (IIS MIS), focusing especially on use internal layering investigate ice-flow change.As an important...
Abstract In 1976, David Sugden and Brian John developed a classification for Antarctic landscapes of glacial erosion based upon exposed eroded coastal topography, providing insight into the past dynamics ice sheets. We extend this to cover continental interior Antarctica by analysing hypsometry subglacial landscape using recently released dataset bed topography (BEDMAP2). used existing as basis first developing low-resolution description evolution under sheet before building more detailed...
Abstract We assess basal roughness beneath Pine Island Glacier (PIG), West Antarctica, based on a recent airborne radio-echo sounding dataset. identify clear relationship between faster ice flow and decreased in significant parts of PIG. The central portion two its tributaries are particularly smooth, but the majority feeding main trunk rougher. interpret presence smooth bed as being consequence deposition marine sediments following disappearance Antarctic sheet Pliocene or Pleistocene, and,...
ABSTRACT The Institute Ice Stream (IIS) rests on a reverse-sloping bed, extending >150 km upstream into the ~1.8 deep Robin Subglacial Basin, placing it at threshold of marine ice-sheet instability. Understanding IIS vulnerability has focused effect grounding-line melting, which is forecast to increase significantly this century. Changes ice-flow dynamics are also important stability, yet little known about them. Here we reveal that trunk occurs downstream intersection three discrete...
Abstract We present a first version of the Svalbard ice‐free topography (SVIFT1.0) using mass conserving approach for mapping glacier ice thickness. SVIFT1.0 is informed by more than 1 million point measurements, totalling 8,700 km thickness profiles. publicly available and represents geometric state around year 2010. Our estimate total volume 6,199 3 , equivalent to 1.5‐cm sea level rise. The map suggests that 13% glacierized area grounded below level. A complementary error estimates...
Research Article| January 01, 2006 East Antarctic ice stream tributary underlain by major sedimentary basin Jonathan L. Bamber; Bamber 1Bristol Glaciology Centre, School of Geographical Sciences, University Bristol, Road, Bristol BS8 1SS, UK Search for other works this author on: GSW Google Scholar Fausto Ferraccioli; Ferraccioli 2British Survey, High Cross, Madingley Cambridge CB3 0ET, Ian Joughin; Joughin 3Polar Science Center, Applied Physics Lab, Washington, 1013 NE 40th Street, Seattle,...
Abstract. A recent ocean modelling study indicates that possible changes in circulation may bring warm deep-ocean water into direct contact with the grounding lines of Filchner–Ronne ice streams, suggesting potential for future losses from this sector equivalent to ~0.3 m sea-level rise. Significant advancements have been made our knowledge both basal topography and velocity Weddell Sea sector, ability accurately model marine sheet dynamics, thus enabling an assessment be relative...
Abstract This paper presents an overview of internal layering across Pine Island Glacier, West Antarctica, as measured from airborne-radar data acquired during a survey conducted by the British Antarctic Survey and University Texas in 2004/05 season. Internal is classified according to type (continuous/discontinuous/missing) results compared with InSAR velocities. Several areas exhibit disruption layers that most likely caused large basal shear stresses. Signs changes flow were identified...
Small mountain glaciers have short mass balance response times to climate change and are consequently very important for short‐term contributions sea level. However, a distinct research knowledge gap exists between (1) wider regional studies that produce overview patterns trends in glacier changes, (2) situ local scale emphasise spatial heterogeneity complexity responses climate. This study of small central Austria presents spatiotemporally detailed analysis changes geometry glaciological...