Philippe Huybrechts
A5091907856- Cryospheric studies and observations
- Geology and Paleoclimatology Research
- Climate change and permafrost
- Winter Sports Injuries and Performance
- Landslides and related hazards
- Arctic and Antarctic ice dynamics
- Climate variability and models
- Methane Hydrates and Related Phenomena
- Geophysics and Gravity Measurements
- Polar Research and Ecology
- Geological Studies and Exploration
- Atmospheric and Environmental Gas Dynamics
- Pleistocene-Era Hominins and Archaeology
- Meteorological Phenomena and Simulations
- Scientific Research and Discoveries
- Isotope Analysis in Ecology
- Geological and Geochemical Analysis
- Geological formations and processes
- Hydrology and Watershed Management Studies
- Marine and environmental studies
- Oceanographic and Atmospheric Processes
- Science and Climate Studies
- Spacecraft and Cryogenic Technologies
- Tree-ring climate responses
- Geomagnetism and Paleomagnetism Studies
Vrije Universiteit Brussel
2016-2025
The Graduate University for Advanced Studies, SOKENDAI
2019
Institute of Geography of the Slovak Academy of Sciences
2006-2015
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
1999-2009
Statistics Belgium
2007
Pennsylvania State University
2005
Oregon State University
2005
Johns Hopkins University Applied Physics Laboratory
2005
University of Washington
2005
Met Office
2003
Future sea-level rise is an important issue related to the continuing buildup of atmospheric greenhouse gas concentrations. The Greenland and Antarctic ice sheets, with potential raise sea level approximately 70 meters if completely melted, dominate uncertainties in projected change. Freshwater fluxes from these sheets also may affect oceanic circulation, contributing climate Observational modeling advances have reduced many ice-sheet behavior, but recently detected, rapid ice-marginal...
Abstract The authors attribute significantly increased Greenland summer warmth and Ice Sheet melt runoff since 1990 to global warming. Southern coastal Northern Hemisphere temperatures were uncorrelated between the 1960s early 1990s but positively correlated thereafter. This relationship appears have been modulated by North Atlantic Oscillation, whose index was (negatively) with southern until not Significant warming in ∼1990, as also evidenced from Swiss Camp on west flank of ice sheet,...
New calculations were performed to investigate the combined response of Greenland and Antarctic ice sheets a range climatic warming scenarios over next millennium. Use was made fully dynamic 3D thermomechanic sheet models, which coupled two-dimensional climate model. The experiments initialized with simulations last two glacial cycles estimate present evolution subsequently forced temperature resulting from greenhouse emission assume equivalent CO2 increases two, four, eight times (1990...
Repeated laser‐altimeter surveys and modelled snowfall/summer melt show average ice loss from Greenland between 1997 2003 was 80 ± 12 km 3 yr −1 , compared to about 60 for 1993/4–1998/9. Half of the increase higher summer melting, with rest caused by velocities some glaciers exceeding those needed balance upstream snow accumulation. Velocities one large glacier almost doubled 2003, resulting in net its drainage basin 20 2002 2003.
Abstract. Ice flow models of the Antarctic ice sheet are commonly used to simulate its future evolution in response different climate scenarios and assess mass loss that would contribute sea level rise. However, there is currently no consensus on estimates balance sheet, primarily because differences representation physical processes, forcings employed initial states models. This study presents results from model simulations 13 international groups focusing during period 2015–2100 as part...
Abstract. The main characteristics of the new version 1.2 three-dimensional Earth system model intermediate complexity LOVECLIM are briefly described. includes representations atmosphere, ocean and sea ice, land surface (including vegetation), ice sheets, icebergs carbon cycle. atmospheric component is ECBilt2, a T21, 3-level quasi-geostrophic model. CLIO3, which consists an general circulation coupled to comprehensive thermodynamic-dynamic sea-ice Its horizontal resolution 3° by 3°, there...
Abstract Predictions of marine ice-sheet behaviour require models able to simulate grounding-line migration. We present results an intercomparison experiment for plan-view models. Verification is effected by comparison with approximate analytical solutions flux across the grounding line using simplified geometrical configurations (no lateral variations, no buttressing effects from drag). Perturbation experiments specifying spatial variation in basal sliding parameters permitted evolution...
Abstract. The Greenland ice sheet is one of the largest contributors to global mean sea-level rise today and expected continue lose mass as Arctic continues warm. two predominant loss mechanisms are increased surface meltwater run-off associated with retreat marine-terminating outlet glaciers. In this paper we use a large ensemble models forced by output from representative subset Coupled Model Intercomparison Project (CMIP5) climate project changes contributions over 21st century....
Synchronous acceleration and thinning of southeast (SE) Greenland glaciers during the early 2000s was main contributor that resulted in doubling annual discharge from ice sheet. We show this followed by a synchronized widespread slowdown same glaciers, many cases associated with decrease rates, we propose sheet–ocean interactions are first‐order regional control on these recent mass changes. Sea surface temperature mooring data preceding dynamic coincides brief decline cold East Coastal...
Abstract Accelerated mass loss from the Greenland ice sheet leads to glacier retreat and an increasing input of glacial meltwater fjords coastal waters around Greenland. These high latitude ecosystems are highly productive sustain important fisheries, yet it remains uncertain how they will respond future changes in Arctic cryosphere. Here we show that marine‐terminating glaciers play a crucial role sustaining productivity fjord ecosystems. Hydrographic biogeochemical data two systems...
Abstract. Predictions of marine ice-sheet behaviour require models that are able to robustly simulate grounding line migration. We present results an intercomparison exercise for models. Verification is effected by comparison with approximate analytical solutions flux across the using simplified geometrical configurations (no lateral variations, no effects buttressing). Unique steady state positions exist ice sheets on a downward sloping bed, while hysteresis occurs overdeepened and stable...
Abstract Correlation analysis of Greenland coastal weather station temperatures against the North Atlantic Oscillation (NAO) and Multidecadal (AMO) indices for summer season (when Ice Sheet melt runoff occur) reveals significant temporal variations over last 100 years, with periods strongest correlations in early twentieth century during recent decades. During mid‐twentieth century, temperature changes at stations are not significantly correlated these circulation indices. (GrIS) since 1970s...
Abstract Confidence in projections of global-mean sea level rise (GMSLR) depends on an ability to account for GMSLR during the twentieth century. There are contributions from ocean thermal expansion, mass loss glaciers and ice sheets, groundwater extraction, reservoir impoundment. Progress has been made toward solving “enigma” twentieth-century GMSLR, which is that observed previously found exceed sum estimated contributions, especially earlier decades. The authors propose following:...
Significance Reconstructions of past environmental changes are important for placing recent climate change in context and testing models. Periods climates warmer than today provide insight on how components the system might respond future. Here, we report an Arctic record from Agassiz ice cap. Our results show that early Holocene air temperatures exceed present values by a few degrees Celsius, industrial era rates temperature unprecedented over period (∼12,000 y). We also demonstrate...
Abstract. Observations and models agree that the Greenland Ice Sheet (GrIS) surface mass balance (SMB) has decreased since end of 1990s due to an increase in meltwater runoff this trend will accelerate future. However, large uncertainties remain, partly different approaches for modelling GrIS SMB, which have weigh physical complexity or low computing time, spatial temporal resolutions, forcing fields, ice sheet topographies extents, collectively make inter-comparison difficult. Our SMB model...
Abstract. The sea level contribution of the Antarctic ice sheet constitutes a large uncertainty in future projections. Here we apply linear response theory approach to 16 state-of-the-art models estimate from basal shelf melting within 21st century. purpose this computation is Antarctica's global rise that arises oceanic forcing and associated melting. Ice considered be major if not largest perturbation sheet's flow into ocean. However, by computing only melting, our study neglecting number...