Results 141 to 150 of about 217,287 (287)

Antarctic Meltwater Accelerates Southern Ocean Evolution Under Projected Atmospheric Warming

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Increasing basal meltwater from Antarctic ice shelves may impact the Southern Ocean properties that feed back on the rate of melting. We investigate this feedback in a high‐emissions scenario using an Earth‐system model with interactive ice‐shelf basal melting, an improvement on previous studies that did not have the capability to evolve melt ...
Irena Vaňková, Matthew Hoffman, Xylar Asay‐Davis, Carolyn Branecky Begeman, Darin Comeau, Stephen F. Price, Jonathan Wolfe   +6 more
wiley   +1 more source

Grain-size, coarse fraction lithology and clay mineral compositions of surface sediments from Ross Sea, Antarctica: implications for their provenance and delivery mode

Frontiers in Marine Science
Knowledge on spatial distribution, provenance and delivery mode of surface sediment aids in interpretation of nearby sediment records for paleoenvironmental reconstruction.
Li Wu, Li Wu, Li Wu, Li Wu, Longwei Li, Longwei Li, Rujian Wang, Hebin Shao, Yi Chen, Zipei Lin, Yue Liu, Wenshen Xiao, Ran Xu   +12 more
doaj   +1 more source

Kernel‐Based Estimation of Stratospheric Aerosol Radiative Effects From Volcanic and Wildfire Events

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 4, 28 February 2026.
Abstract To facilitate the quantification of the stratospheric aerosol direct radiative effect (ARE), this study develops a suite of aerosol kernels based on Modern‐Era Retrospective Analysis for Research and Applications, Version 2 reanalysis data. The kernels comprise a five‐dimensional data set that includes latitude, longitude, time, wavelength ...
Qiurun Yu, Yi Huang
wiley   +1 more source

Basal Melt and Freezing Rates From First Noble Gas Samples Beneath an Ice Shelf

Geophysical Research Letters, 2018
A climatically induced acceleration in ocean‐driven melting of Antarctic ice shelves would have consequences for both the discharge of continental ice into the ocean and thus global sea level, and for the formation of Antarctic Bottom Water and the ...
Oliver Huhn, Tore Hattermann, Peter E. D. Davis, Erich Dunker, Hartmut H. Hellmer, Keith W. Nicholls, Svein Østerhus, Monika Rhein, Michael Schröder, Jürgen Sültenfuß   +9 more
doaj   +1 more source

Mapping NAT‐Containing Polar Stratospheric Clouds in the Antarctic Stratosphere Using Nadir Infrared Radiance Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 4, 28 February 2026.
Abstract Polar stratospheric clouds (PSCs) play a key role in the formation of the Antarctic ozone hole. Here, we report the first observations of the most abundant PSC composition class, NAT‐containing mixtures (one of whose components is nitric acid trihydrate, NAT, particles), from measurements of a passive nadir‐viewing sounder, the Infrared ...
Manon Hermans, Lieven Clarisse, Catherine Wespes, Cathy Clerbaux, Pierre Coheur   +4 more
wiley   +1 more source

Remote Sensing Sediment–Albedo Feedbacks Affecting Ice Thickness on Taylor Valley Lakes, Antarctica

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract The McMurdo Dry Valleys are the largest unglaciated region in Antarctica and home to perennially frozen lakes. Thirty years of ice thickness measurements reveal meter‐scale fluctuations over decadal time scales. In this paper, we hypothesize that changing surface sediment dynamics alter ice albedo, changing the heat balance and thickness of ...
C. E. Dougherty, H. A. Dugan, P. T. Doran, L. Zoet, M. Salvatore   +4 more
wiley   +1 more source

On the Role of Western Boundary Currents to Fertilize Adjacent Continental Shelves at Interannual Scales: A Case Study in the Southwestern Atlantic

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Exchanges between continental shelves and open ocean basins regulate the transport of heat, salt, and nutrients. In the Southwestern Atlantic, the western boundary current known as the Malvinas Current (MC) fertilizes the outer shelf through recurrent slope‐water intrusions.
Carola Ferronato, Martin Saraceno, Valeria A. Guinder   +2 more
wiley   +1 more source

High‐Frequency Fluctuations in Antarctic Bottom Water Transport Driven by Southern Ocean Winds

, 2021
A. Stewart, Xiao-Dong Chi, Aviv Solodoch, A. Hogg   +3 more
semanticscholar   +1 more source

On the lifecycle of Antarctic Bottom Water

, 2016
L'Eau Antarctique de Fond constitue la principale masse d'eau océanique par son volume, et nourrit la composante la plus profonde et la plus lente de la circulation océanique. Les processus qui régissent son cycle de vie sont donc clé pour la capacité de stockage de l'océan en carbone et chaleur aux échelles centennales à multi-millénaires. Cette thèse
openaire   +1 more source

What Factors Explain the Current Arctic Albedo and Its Future Change?

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract The Arctic has experienced rapid sea ice loss and a substantial surface albedo decline, altering its radiation budget. CMIP6 (Coupled Model Intercomparison Project Phase 6) models capture these trends but show considerable inter‐model spread in the magnitude, distribution, and seasonality of Arctic surface albedo.
Doyeon Kim, Patrick C. Taylor
wiley   +1 more source