A5005814137- Cryospheric studies and observations
- Climate change and permafrost
- Geology and Paleoclimatology Research
- Winter Sports Injuries and Performance
- Landslides and related hazards
- Polar Research and Ecology
- Arctic and Antarctic ice dynamics
- Hydrology and Watershed Management Studies
- Archaeology and Natural History
- Hydrology and Drought Analysis
- Water resources management and optimization
- Hydrology and Sediment Transport Processes
Vestlandsforsking
2014-2025
Western Norway University of Applied Sciences
2017-2025
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. Glaciers and ice caps worldwide are in strong decline, models project this trend to continue with future warming, environmental socio-economic implications. The Jostedalsbreen cap is the largest on European continent (458 km2 2019) occupies 20 % of total glacier area mainland Norway. Here we simulate evolution since 1960, its fate a changing climate 21st-century beyond (2300). This consists units great diversity shape, steepness, hypsometry, flow speed. We employ coupled model...
Abstract. Peatlands are Earth's most carbon-dense terrestrial ecosystems and their carbon density varies with the depth of peat layer. Accurate mapping is crucial for accounting land management, yet existing maps lack resolution accuracy needed these applications. This study evaluates whether digital soil using remotely sensed data can improve in western southeastern Norway. Specifically, we assessed predictive value LiDAR-derived terrain variables airborne radiometric across two, >10 km2...
Glaciers and ice caps worldwide are in strong decline, models project this trend to continue with future warming, natural socioeconomic implications. The Jostedalsbreen cap is the largest on European continent (500 km2 1966, 458 2019) occupies 20% of total glacier area mainland Norway. Here we simulate evolution since 1960, its fate a changing climate 21st-century beyond (2300). This contains units great diversity shape, steepness, hypsometry, flow speed. We employ coupled model system...
Abstract Here we present ground-penetrating radar measurements of Mittivakkat Gletscher, southeast Greenland, to estimate an empirical volume–area scaling relationship at individual glacier. Between a previous direct volume survey in 1994 and one 2012, the glacier has decreased from 2.02 km 3 1.44 while study area 17.6 2 15.8 . These results are accordance with cumulative mass loss observed by long-term mass-balance (1995/96–2011/12) Gletscher confirm that is severe climatic disequilibrium...
Abstract. Chronologies of glacier deposits in the Transantarctic Mountains provide important constraints on grounding-line retreat during last deglaciation Ross Sea. However, between Beardmore Glacier and Island – a distance some 600 km existing chronologies are generally sparse far from modern grounding line, leaving past dynamics this vast region largely unconstrained. We present exposure ages glacial at three locations alongside Darwin–Hatherton System including within 10 line that record...
Abstract Observations remain sparse for peripheral glaciers and ice caps in Greenland. Here, we present the results of a multi-frequency radar survey Lyngmarksbræen Ice Cap West Greenland conducted April 2017. Radar measurements show thick up to ~120 m subglacial valleys associated with largest outlet glaciers, while relatively thin cover upper plateau divides, suggesting future vulnerability cap fragmentation. At time survey, had total volume 0.82 ± 0.1 km 3 . Measurements 1.5–2...
Folgefonna consists of three ice caps which are rapidly retreating in response to warmer temperatures. The melting has implications for meltwater drainage and hydropower production, as well the potential geohazards impacts tourism, communities infrastructures surrounding glacier. To support future adaptation strategies, we need know subglacial topography identify water divides possible areas geohazards. Therefore, mapped at Sørfonna, largest caps, using an ice-penetrating radar (2.5 MHz...
ABSTRACT The Darwin–Hatherton Glacial system (DHGS) connects the East Antarctic Ice Sheet (EAIS) with Ross Shelf and is a key area for understanding past variations in ice thickness of surrounding masses. Here we present first detailed measurements grounding zone characteristics DHGS as well new velocity. results illustrate changes that occur glacier geometry flux flows from polar plateau into Shelf. discharge mean basal shelf melt 8.5 km downstream line amount to 0.24 ± 0.05 3 −1 0.3 0.1 m...
Abstract. We present an extensive dataset of ice thickness measurements from Jostedalsbreen cap, mainland Europe's largest glacier. The consists more than 351 000 point values distributed along ∼ 1100 km profile segments that cover most the cap. Ice was measured during field campaigns in 2018, 2021, 2022 and 2023 using various ground-penetrating radar (GPR) systems with frequencies ranging between 2.5 500 MHz. A large majority observations were collected spring either snowmobiles (90 %) or a...
Abstract. We present an extensive dataset of ice thickness measurements from Jostedalsbreen cap, mainland Europe's largest glacier. The consists more than 351 000 point values distributed along ~1100 km profile segments that cover most the cap. Ice was measured during field campaigns in 2018, 2021, 2022, and 2023 using various ground-penetrating radar (GPR) systems with frequencies ranging between 2.5 500 MHz. large majority observations were collected spring either snowmobiles (90 %) or a...
Abstract. We present exposure ages of glacial deposits at three locations alongside Darwin Glacier and its tributary Hatherton that record several hundred meters late Pleistocene to early Holocene thickening relative present. As the grounding-line Ross Sea Ice Sheet retreated rapidly southward, thinned steadily from about 9 kyr BP until 3 BP. Our data are equivocal maximum thickness mid-to-early history mouth Glacier, allowing for two possible deglaciation scenarios: (1) ~500 m steady...