Results 71 to 80 of about 3,392 (193)

Global Glacial Rock Weathering Signature Depends on Competing Contributions From Ice Sheets and Alpine Glaciers

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Rock weathering influences Earth's atmosphere and climate. The dissolution of silicate minerals draws down atmospheric CO2 while sulfide oxidation coupled with carbonate dissolution releases CO2. Alpine glacier rock weathering causes high sulfide oxidation and carbonate dissolution.
S. Muñoz, L. C. Smith, G. Piccione, S. E. Esenther, E. J. Ramos, J. Jenckes, L. A. Munk, D. E. Ibarra   +7 more
wiley   +1 more source

Revisiting Trends in Greenland Ice Sheet Albedo Using the Combined MODIS and VIIRS Record

Earth and Space Science
The MODerate resolution Imaging Spectroradiometer (MODIS) instruments onboard NASA's Aqua and Terra satellites have been used to monitor trends in Greenland Ice Sheet albedo for over two decades.
Jonathan C. Ryan, Sarah W. Cooley, Elizabeth E. Webb   +2 more
doaj   +1 more source

Identifying Energy Balance Drivers of Greenland Ice Sheet Surface Melt Using Causal Discovery

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Greenland Ice Sheet (GrIS) mass loss has accelerated in recent decades, primarily due to enhanced surface melt. Identifying the causal dependencies of surface melt remains challenging with conventional correlations. Using the PCMCI+ ${\text{PCMCI}}^{+}$ causal discovery algorithm applied to CESM2 large‐ensemble simulations and evaluated ...
Ziqi Yin, Aneesh C. Subramanian, Rajashree Datta, Adam R. Herrington, Danni Du, Sahara Ali, Omar Faruque, Jianwu Wang   +7 more
wiley   +1 more source

Glacial Ice‐Front Calving: Internal Wave Generation and Melting

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Small, frequent calving events dominate the behavior of most Arctic marine‐terminating glaciers, yet their oceanographic impacts remain largely unquantified. We present the first direct observations of internal waves generated by modest ice‐fall calving at Kronebreen, Svalbard. High‐resolution current meter and microstructure measurements show
M. E. Inall, N. J. Fraser, A. Sundfjord, M. P. Meredith   +3 more
wiley   +1 more source

Herbarium specimens reveal drivers of Arctic shrub growth

New Phytologist, EarlyView.
Natalie Iwanycki Ahlstrand, Zoe A. Panchen, Anne D. Bjorkman, James D. M. Speed   +3 more
wiley   +1 more source

Loess Studies in Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway, David J. Lowe, Bradley J. Pillans, Peter C. Almond, Alan S. Palmer   +4 more
wiley   +1 more source

Update of annual calving front lines for 47 marine terminating outlet glaciers in Greenland (1999–2018)

Geological Survey of Denmark and Greenland Bulletin, 2019
The Greenland ice sheet has been losing mass in response to increased surface melting (Khan et al. 2015; van den Broeke et al. 2017) as well as discharge of ice from marine terminating outlet glaciers (van den Broeke et al. 2009; Box et al. 2018). Marine
Jonas K Andersen, Robert S Fausto, Karina Hansen, Jason E Box, Signe B Andersen, Andreas P Ahlstrøm, Dirk van As, Michele Citterio, William Colgan, Nanna B Karlsson, Kristian K Kjeldsen, Niels J Korsgaard, Signe H Larsen, Kenneth D Mankoff, Allan Ø Pedersen, Christopher L Shields, Anne Solgaard, Baptiste Vandecrux   +17 more
doaj   +1 more source

Constraining the geothermal heat flux in Greenland at regions of radar-detected basal water

Journal of Glaciology, 2019
The spatial distribution of basal water critically impacts the evolution of ice sheets. Current estimates of basal water distribution beneath the Greenland Ice Sheet (GrIS) contain large uncertainties due to poorly constrained boundary conditions ...
Soroush Rezvanbehbahani, Leigh A. Stearns, C. J. van der Veen, Gordon K. A. Oswald, Ralf Greve   +4 more
doaj   +1 more source

Seasonal Ice Dynamics Control the Timing of Crevasse Drainage at a Fast‐Flowing Outlet Glacier

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Crevasse field drainage transfers at least half of the seasonal runoff from the surface to the bed of the Greenland Ice Sheet, but the patterns of drainage are complex and spatio‐temporally heterogenous. To better understand controls on crevasse drainage processes, we use an automated deep learning method to map the seasonal filling and ...
T. R. Chudley, C. R. Stokes, J. M. Lea, T. Winterbottom, R. Law, C. C. Clason, H. E. Wytiahlowsky, J. L. Dechow   +7 more
wiley   +1 more source

The Balance of the Greenland Ice Sheet [PDF]

Journal of Glaciology, 1955
AbstractPlanimetry of the 15 maps of scale 1:1,000,000 of the World Aeronautical Chart, U.S.A.F., gives 1.726 × 106 km.2 for the surface area of the Greenland Ice Sheet. The hypsometric curve obtained by measuring the area between contours at 1000-ft. (305 m.) intervals with a planimeter gives 2135 m. for the mean height of the ice sheet.
openaire   +1 more source