Results 41 to 50 of about 11,270 (214)

Cordilleran Ice Sheet early deglaciation inferred from evolution of Late‐Pleistocene glacial Lake Dzulh Stun in east‐central British Columbia, Canada

Journal of Quaternary Science, EarlyView.
Abstract We document the early decay of the Late‐Pleistocene Cordilleran Ice Sheet in the central portion of the Rocky and Cariboo Mountains and the Rocky Mountain Trench in east‐central British Columbia. Glacial lakes impounded at the eastern margin of the ice sheet occupied watersheds on the west flank of the central Rocky Mountains, leaving ...
Brendan G. N. Miller, John J. Clague, Andrée Blais‐Stevens   +2 more
wiley   +1 more source

Crevasse effects on glacier surface temperature from thermal imagery

Journal of Glaciology
Thermal imagery was collected for 26 hours over a crevassed region within the accumulation zone of the Haupapa/Tasman Glacier, New Zealand. During the night, the imaged snow surfaces associated with crevasses cooled slower than non-crevassed surfaces ...
Tim Kerr, Heather Purdie, Paul Bealing, Benjamin Schumacher, Marwan Katurji, Rajasweta Datta, Peyman Zawar-Reza   +6 more
doaj   +1 more source

Glacial dynamics in pre-Alpine narrow valleys during the Last Glacial Maximum inferred by lowland fluvial records (northeast Italy) [PDF]

, 2018
During the Last Glacial Maximum (LGM), most of the major glaciated basins of the European Southern Alps had piedmont lobes with large outwash plains; only a few glaciers remained within the valley.
Carraro, Anna, Monegato, Giovanni, Mozzi, Paolo, Rossato, Sandro, Tateo, Fabio   +4 more
core   +2 more sources

Rediscovery of Passiflora clypeophylla (subgenus Decaloba): a highly threatened and narrow endemic species found within a karstic canyon in Guatemala

Nordic Journal of Botany, EarlyView.
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe, Dennis I. Medina, Saban Sequen, Maura L. Quezada   +3 more
wiley   +1 more source

Hydraulic impacts of glacier advance over a sediment bed [PDF]

, 2006
A sedimentary sequence of till overlying a gravel aquifer was instrumented with water-pressure transducers prior to a small, anticipated surge of the margin of the glacier Breiðamerkurjökull in Iceland.
Baker, Bogadóttir, Boulton, Boulton, Craig, Deresiewicz, Eissmann, Evans, Geoffrey Boulton, Gustafson, Rhén, Röthlisberger, Schirmer, Sergei Zatsepin, Van der Meer   +14 more
core   +1 more source

Debris at the edge: sedimentological dynamics of Hintereisferner's evolving terminus and glacial forefield, Austrian Alps

Boreas, EarlyView.
The interaction between glaciers and the debris accumulating on their surfaces is critical as the Earth warms, with consequences for ice dynamics, hydrology and mass balance together with slope and sedimentary processes. Understanding this interaction is necessary since it influences ablation rates, sediment and meltwater pathways.
Paulina Mejías Osorio, Ricarda Wohlschlägl, Thomas M. Vandyk, Sara Karbacher, Bethan Joan Davies, Daniel Paul Le Heron   +5 more
wiley   +1 more source

Electron microscopy‐based three‐dimensional subcellular imaging of plant male gametophyte

Journal of Integrative Plant Biology, EarlyView.
The Aquilos2 Cryo‐FIB workflows provide practical routes for cryo‐electron tomography and volume imaging in plant structural biology. ABSTRACT Understanding cellular events in three dimensions (3D) is of great importance for the annotation and illustration of biological processes in a contextual way. Imaging techniques based on electron microscopy (EM),
Zhiqi Liu, Zizhen Liang, Mengfei Liao, Yixin Huang, Rui Ma, Jiayang Gao, Weiqi Wang, Tao Ni, Philipp S. Erdmann, Liwen Jiang   +9 more
wiley   +1 more source

Crevasse-induced Rayleigh-wave azimuthal anisotropy on Glacier de la Plaine Morte, Switzerland

Annals of Glaciology, 2019
Crevasses and englacial fracture networks route meltwater from a glacier's surface to the subglacial drainage system and thus influence glacial hydraulics.
Fabian Lindner, Gabi Laske, Fabian Walter, Adrian K. Doran   +3 more
doaj   +1 more source

Robust Pluralism About Philosophical Progress

Philosophical Issues, EarlyView.
ABSTRACT This article argues that there are two fundamentally different types of alethic and epistemic progress in philosophy. It is widely assumed that such progress is to be assessed by reference to the quantity or quality of philosophy's product (i.e., a type of output or outcome, such as true answers, coherent views, knowledge, or understanding ...
John Bengson, Terence Cuneo, Russ Shafer‐Landau   +2 more
wiley   +1 more source

Calving dynamics at Jakobshavn Isbrae (Sermeq Kujalleq) controlled by local geometry: insights from a 3D Stokes calving model

Journal of Glaciology
We present the first simulations of Jakobshavn Isbrae (Sermeq Kujalleq), west Greenland, using a 3D Stokes calving model that permits unrestricted advance and retreat.
Iain Wheel, Anna J. Crawford, Douglas I. Benn   +2 more
doaj   +1 more source