Results 91 to 100 of about 95,350 (324)

Changes in the Greenland Ice Sheet of the Southeastern Maniitsoq Coast from 1994-2004 and 2009-2019 [PDF]

, 2019
Remote sensing mechanisms through the use of technology like the Landsat 5-7 Land Manager satellites are commonly used in conjunction with multispectral methods such as unsupervised classification to record and analyze changes in snow and ice over time ...
Kaewwilai, Alyssa J., Reisman, Charlie E.   +1 more
core   +1 more source

Giant viral signatures on the Greenland ice sheet [PDF]

Microbiome
Abstract Background Dark pigmented snow and glacier ice algae on glaciers and ice sheets contribute to accelerating melt. The biological controls on these algae, particularly the role of viruses, remain poorly understood.
Perini L, Sipes K, Zervas A, Bellas C, Lutz S, Moniruzzaman M, Mourot R, Benning L, Tranter M, Anesio A.   +9 more
europepmc   +6 more sources

The Holocene sedimentary record of Mittie Glacier dynamics in Smith Bay, Ellesmere Island (eastern Canadian Arctic Archipelago)

Journal of Quaternary Science, EarlyView.
ABSTRACT The physical, sedimentological, mineralogical, and elemental geochemical properties of sediment cores collected in Smith Bay (22BC and 01PC), and near the front of Mittie Glacier (23BC and 01GC), were used to reconstruct glacial sediment discharge and trace the long‐term composition and provenance of detrital sediments for the northeastern ...
Elodie Bracquart, Jean‐Carlos Montero‐Serrano, Patrick Lajeunesse, Guillaume St‐Onge, Luke Copland   +4 more
wiley   +1 more source

Radiostratigraphy and age structure of the Greenland Ice Sheet [PDF]

Journal of Geophysical Research: Earth Surface, 2015
AbstractSeveral decades of ice‐penetrating radar surveys of the Greenland and Antarctic ice sheets have observed numerous widespread internal reflections. Analysis of this radiostratigraphy has produced valuable insights into ice sheet dynamics and motivates additional mapping of these reflections. Here we present a comprehensive deep radiostratigraphy
Mathieu Morlighem, B. M. Wagman, S. Prasad Gogineni, Alexandria N. Mabrey, Ginny A. Catania, Mark Fahnestock, John Paden, Susan C. Rybarski, Susan C. Rybarski, Joseph A. MacGregor, S. Keith Young   +10 more
openaire   +6 more sources

Million years of Greenland Ice Sheet history recorded in ocean sediments [PDF]

, 2011
Geological records from Tertiary and Quaternary terrestrial and oceanic sections have documented the presence of ice caps and sea ice covers both in the Southern and the Northern hemispheres since Eocene times, approximately since 45 Ma.
Jessen, Catherine, Knutz, Paul, Kuijpers, Antoon, Mikkelsen, Naja, Nørgaard-Pedersen, Nils, Spielhagen, Robert F., Thiede, Jörn   +6 more
core  

Large-ensemble simulations of the North American and Greenland ice sheets at the Last Glacial Maximum with a coupled atmospheric general circulation–ice sheet model [PDF]

Climate of the Past
The Last Glacial Maximum (LGM) was characterised by huge ice sheets covering the Northern Hemisphere, especially over North America, and by its cold climate.
S. Sherriff-Tadano, S. Sherriff-Tadano, R. Ivanovic, L. Gregoire, C. Lang, N. Gandy, N. Gandy, J. Gregory, J. Gregory, T. L. Edwards, O. Pollard, R. S. Smith   +11 more
doaj   +1 more source

Future Sea Level Change Under Coupled Model Intercomparison Project Phase 5 and Phase 6 Scenarios From the Greenland and Antarctic Ice Sheets

Geophysical Research Letters, 2021
Projections of the sea level contribution from the Greenland and Antarctic ice sheets (GrIS and AIS) rely on atmospheric and oceanic drivers obtained from climate models.
Antony J. Payne, Sophie Nowicki, Ayako Abe‐Ouchi, Cécile Agosta, Patrick Alexander, Torsten Albrecht, Xylar Asay‐Davis, Andy Aschwanden, Alice Barthel, Thomas J. Bracegirdle, Reinhard Calov, Christopher Chambers, Youngmin Choi, Richard Cullather, Joshua Cuzzone, Christophe Dumas, Tamsin L. Edwards, Denis Felikson, Xavier Fettweis, Benjamin K. Galton‐Fenzi, Heiko Goelzer, Rupert Gladstone, Nicholas R. Golledge, Jonathan M. Gregory, Ralf Greve, Tore Hattermann, Matthew J. Hoffman, Angelika Humbert, Philippe Huybrechts, Nicolas C. Jourdain, Thomas Kleiner, Peter Kuipers Munneke, Eric Larour, Sebastien Le clec'h, Victoria Lee, Gunter Leguy, William H. Lipscomb, Christopher M. Little, Daniel P. Lowry, Mathieu Morlighem, Isabel Nias, Frank Pattyn, Tyler Pelle, Stephen F. Price, Aurélien Quiquet, Ronja Reese, Martin Rückamp, Nicole‐Jeanne Schlegel, Hélène Seroussi, Andrew Shepherd, Erika Simon, Donald Slater, Robin S. Smith, Fiammetta Straneo, Sainan Sun, Lev Tarasov, Luke D. Trusel, Jonas Van Breedam, Roderik van deWal, Michiel van denBroeke, Ricarda Winkelmann, Chen Zhao, Tong Zhang, Thomas Zwinger   +63 more
doaj   +1 more source

A tephrostratigraphic investigation of the continuously varved Holocene Boreal lake Nautajärvi, Finland, provides precise age estimate for Lairg A/Hekla 5 eruption

Journal of Quaternary Science, EarlyView.
ABSTRACT Numerous cryptotephra layers originating from Icelandic volcanoes and further afield have reached Northern Europe during the Holocene. Refining the precise timing and the relative frequency of local and distal eruptions requires well‐resolved continuous sediment archives. Lake Nautajärvi is located in central‐southern Finland (61°48′ N, 24°41′
Alice Carter‐Champion, Katy Flowers, Antti E.K. Ojala, Simon Blockley, Paul Lincoln, Shuang Zhang, Christina Manning, Celia Martin Puertas   +7 more
wiley   +1 more source

Short-term impacts of enhanced Greenland freshwater fluxes in an eddy-permitting ocean model [PDF]

, 2010
In a sensitivity experiment, an eddy-permitting ocean general circulation model is forced with realistic freshwater fluxes from the Greenland Ice Sheet, averaged for the period 1991–2000.
Aksenov, Y., Bamber, J.L., Coward, A.C., de Cuevas, B.A., Desbruyeres, D., Marsh, R.   +5 more
core   +6 more sources

Unprecedented atmospheric conditions (1948–2019) drive the 2019 exceptional melting season over the Greenland ice sheet

The Cryosphere, 2019
. Understanding the role of atmospheric circulation anomalies on the surface mass balance of the Greenland ice sheet (GrIS) is fundamental for improving estimates of its current and future contributions to sea level rise.
M. Tedesco, X. Fettweis
semanticscholar   +1 more source