Publicaties
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Simulating the roles of crevasse routing of surface water and basal friction on the surge evolution of Basin 3, Austfonna ice cap Vrije Universiteit Brussel
The marine-terminating outlet in Basin 3, Austfonna ice cap, has been accelerating since the mid-1990s. Stepwise multi-annual acceleration associated with seasonal summer speed-up events was observed before the outlet entered the basin-wide surge in autumn 2012. We used multiple numerical models to explore hydrologic activation mechanisms for the surge behaviour. A continuum ice dynamic model was used to invert basal friction coefficient ...
Changes in bacterioplankton community structure during early lake ontogeny resulting from the retreat of the Greenland Ice Sheet KU Leuven
Retreating glaciers and ice sheets are among the clearest signs of global climate change. One consequence of glacier retreat is the formation of new meltwater-lakes in previously ice-covered terrain. These lakes provide unique opportunities to understand patterns in community organization during early lake ontogeny. Here, we analyzed the bacterial community structure and diversity in six lakes recently formed by the retreat of the Greenland Ice ...
Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area KU Leuven
One of the most prominent manifestations of the ongoing climate warming is the retreat of glaciers and ice sheets around the world. Retreating glaciers result in the formation of new ponds and lakes, which are available for colonization. The gradual appearance of these new habitat patches allows us to determine to what extent the composition of asexual Daphnia (water flea) populations is affected by environmental drivers vs. dispersal ...
POP and PAH contamination in the southern slopes of Mt. Everest (Himalaya, Nepal) Universiteit Antwerpen
Due to their physico-chemical properties, POPs and PAHs are subjected to long-range atmospheric transport (LRAT) and may be deposited in remote areas. In this study, the contamination with DDx, PCBs, PBDEs, and PAHs was investigated in sediments and soils collected on the southern slopes of Mt. Everest (Himalaya, Nepal) in two different sampling campaigns (2008 and 2012). The results showed a limited contamination with POPs and PAHs in both soil ...
Twentieth-century global-mean sea-level rise: is the whole greater than the sum of the parts? Vrije Universiteit Brussel KU Leuven
Confidence in projections of global-mean sea level rise (GMSLR) depends on an ability to account forGMSLR during the twentieth century. There are contributions from ocean thermal expansion, mass loss from glaciers and ice sheets, groundwater extraction, and reservoir impoundment. Progress has been made toward solving the ''enigma'' of twentieth-century GMSLR, which is that the observedGMSLRhas previously been found to exceed the sum of estimated ...
Reconstruction of the annual balance of Vadret da Morteratsch, Switzerland, since 1865 Vrije Universiteit Brussel
We have reconstructed the annual balance of the Vadret da Morteratsch, Engadine, with a two-dimensional energy-balance model for the period between 1865 and 2005. The model takes into account a parameterisation of the surface energy fluxes, an albedo that decreases exponentially with snow depth as well as the shading effect of the surrounding mountains. The model was first calibrated with a 5-year record of annual balance measurements made at 20 ...
The subfossil chrysophyte cyst flora of some peat samples from Kerguelen Islands Plantentuin Meise / Agentschap Plantentuin Meise
The fossil chrysophyte stomatocyst flora of six peat samples from Glacier Ampere, a retreating glacier on Grand Terre, in the subantarctic Kerguelen Archipelago, has been investigated by means of scanning electron microscopy. Thirty-two different stomatocysts were recorded, 27 of which appeared to be previously undescribed. This paper contains the descriptions and illustrations of the new morphotypes. This is the first systematic study of ...