Results 81 to 90 of about 14,782 (212)
Boreas, EarlyView.The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti +5 more
wiley +1 more source
Landslide activation during deglaciation in a fjord-dominated landscape: observations from southern Alaska (1984–2022) [PDF]
Natural Hazards and Earth System SciencesA consequence of the current global glacier mass loss is the destabilization of valley walls as the support provided by the glacier evolves and eventually vanishes.
J. Walden +11 more
doaj +1 more source
Boreas, EarlyView.Glacial erosion during the Last Glacial Maximum (LGM) has removed much evidence of earlier glaciations and interglacials in the European Alps. At Gröbminger Mitterberg (GM), beneath a blanket of LGM till, a distinctive sediment archive preserves deposits predating the LGM.
Gerit E. U. Griesmeier +7 more
wiley +1 more source
An integrated Structure-from-Motion and time-lapse technique for quantifying ice-margin dynamics [PDF]
, 2017 Fine resolution topographic data derived from methods such as Structure from Motion (SfM) and Multi-View Stereo (MVS) have the potential to provide detailed observations of geomorphological change, but have thus far been limited by the logistical ...
DUNCAN J. QUINCEY +6 more
core +1 more source
Boreas, EarlyView.We analyse the geological processes of a coastal embayment in the Kattegat. Using high‐resolution seismic data and sediment cores, we describe a geological evolution from glacial to shallow marine stages with a variety of preserved facies from different depositional settings, including glacio‐lacustrine, telmatic, limnic and coastal environments.
Katrine Juul Andresen +8 more
wiley +1 more source
Paradoxical cold conditions during the medieval climate anomaly in the Western Arctic [PDF]
, 2016 In the Northern Hemisphere, most mountain glaciers experienced their largest extent in the last millennium during the Little Ice Age (1450 to 1850 CE, LIA), a period marked by colder hemispheric temperatures than the Medieval Climate Anomaly (950 to 1250
Daniel Brunstein +15 more
core +6 more sources
Global mapping of lake-terminating glaciers
Abstract. Proglacial lakes at glacier termini have received widespread attention in the literature for their role in accelerating melt, velocity and contributing to cryospheric hazards. Although global and regional inventories for both glaciers and lakes exist, lake-terminating glaciers have not been consistently identified at the global scale.
Jakob Steiner +31 more
openaire +2 more sources
Boreas, EarlyView.We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher +9 more
wiley +1 more source
The length of the glaciers in the world:a straightforward method for the automated calculation of glacier center lines [PDF]
, 2014 Glacier length is an important measure of glacier geometry but global glacier inventories are mostly lacking length data. Only recently semi-automated approaches to measure glacier length have been developed and applied regionally.
Huss, M., Huss, M., Machguth, Horst
core +2 more sources
Sedimentology, EarlyView.ABSTRACT Understanding the biotic and abiotic influences on the deposition and diagenesis of recent microbial carbonates is crucial for addressing the environmental and ecological significance of ancient organosedimentary structures. This study investigates these factors and their expression in the microstructure of Holocene tufa thrombolites from a ...
Paulo Quezada +10 more
wiley +1 more source