Results 121 to 130 of about 77,145 (177)

Asymmetric Response of the North Atlantic Gyres to the North Atlantic Oscillation

Journal of Geophysical Research: Oceans, Volume 130, Issue 6, June 2025.
Abstract The North Atlantic Oscillation (NAO) is a leading mode of atmospheric variability, affecting the North Atlantic Ocean on sub‐seasonal to multi‐decadal timescales. The NAO changes the atmospheric forcing at the ocean's surface, including winds and surface buoyancy fluxes, both of which are known to impact large‐scale gyre circulation.
Dhruv Bhagtani, Andrew McC. Hogg, Ryan M. Holmes, Navid C. Constantinou, Hemant Khatri   +4 more
wiley   +1 more source

Global Sea Ice Coverage from Satellite Data: Annual Cycle and 35-Year Trends [PDF]

Well-established satellite-derived Arctic and Antarctic sea ice extents are combined to create the global picture of sea ice extents and their changes over the 35-yr period 1979-2013. Results yield a global annual sea ice cycle more in line with the high-
Parkinson, Claire L.
core   +1 more source

Airborne and Spaceborne Mapping and Analysis of the Subglacial Lake D2 in David Glacier, Terra Nova Bay, Antarctica

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 6, June 2025.
Abstract During the 2018–2019 Antarctic summer, the Korea Polar Research Institute and the University of Texas Institute for Geophysics collaborated on a helicopter‐based ice‐penetrating radar (IPR) survey over the active subglacial lake D2 (SLD2), located in the midstream of the David Glacier, Terra Nova Bay, Antarctica.
Hyeontae Ju, Seung‐Goo Kang, Hyangsun Han, Lucas H. Beem, Gregory Ng, Kristian Chan, Taewook Kim, Joohan Lee, Jongik Lee, Yeadong Kim, Sukjoon Pyun   +10 more
wiley   +1 more source

Marine record of late quaternary glacial-interglacial fluctuations in the Ross Sea and evidence for rapid, episodic sea level change due to marine ice sheet collapse [PDF]

Some of the questions to be addressed by SeaRISE include: (1) what was the configuration of the West Antarctic ice sheet during the last glacial maximum; (2) What is its configuration during a glacial minimum; and (3) has it, or any marine ice sheet ...
Anderson, John B.
core   +1 more source

Emulation With Uncertainty Quantification of Regional Sea‐Level Change Caused by the Antarctic Ice Sheet

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 2, June 2025.
Abstract Projecting regional sea‐level change under various climate‐change scenarios typically involves running forward simulations of the Earth's gravitational, rotational and deformational (GRD) response to ice‐mass change, which requires substantial computational cost if applied to probabilistic frameworks requiring thousands to millions of samples.
Myungsoo Yoo, Giri Gopalan, Matthew Hoffman, Sophie Coulson, Holly Kyeore Han, Christopher K. Wikle, Trevor Hillebrand   +6 more
wiley   +1 more source

Going Deeper With Deep Learning: Automatically Tracing Internal Reflection Horizons in Ice Sheets—Methodology and Benchmark Data Set

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 2, June 2025.
Abstract Mapping the internal stratigraphy of ice sheets serves a variety of glaciological applications, from the study of past ice flows to current distribution of surface mass balance and melting to contemporary ice dynamics, all of which are crucial for improving future projections of sea level rise.
Hameed Moqadam, Daniel Steinhage, Adalbert Wilhelm, Olaf Eisen   +3 more
wiley   +1 more source

Measurement of Englacial Velocity Fields With Interferometric Radio Echo Sounders

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 6, June 2025.
Abstract The surface velocity of ice sheets is now measured at high spatial and temporal resolutions by satellite‐borne platforms. The availability of this data has enabled rapid progress in both monitoring the evolution of ice sheets and understanding their underlying physical processes.
Thomas O. Teisberg, Dustin M. Schroeder, Paul T. Summers, Mathieu Morlighem   +3 more
wiley   +1 more source

Approaching the Miocene Climatic Optimum in Patagonia (Southern Argentina): Temperature Seasonality and a Potential Role for the Opening Drake Passage

Paleoceanography and Paleoclimatology, Volume 40, Issue 6, June 2025.
Abstract The Miocene Epoch (23.03–5.33 Ma) is receiving increased attention because estimated pCO2 and its associated warmth is comparable to projections over the next century. Well‐constrained sea‐surface temperatures in the tropics and northern latitudes express amplified warming during the Miocene Climatic Optimum (MCO; 16.9–14.7 Ma), yet data from ...
Linda C. Ivany, Claudia J. del Río, Maximiliano J. Alvarez, R. Paul Acosta, Kyger C. Lohmann, M. Sol Raigemborn   +5 more
wiley   +1 more source

Intrathalline Fungal and Bacterial Diversity Is Uncovered in Antarctic Lichen Symbioses

Environmental Microbiology Reports, Volume 17, Issue 3, June 2025.
Antarctic endemic lichens host a greater biodiversity and rare species of fungi and bacteria within the thallus than cosmopolitan lichens. ABSTRACT Although the Antarctic continent represents one of the most hostile environments on earth, microbial life has adapted to cope with these extreme conditions.
Gerardo A. Stoppiello, Roberto De Carolis, Claudia Coleine, Mauro Tretiach, Lucia Muggia, Laura Selbmann   +5 more
wiley   +1 more source

Near‐Term Future Sea‐Level Projections Supported by Extrapolation of Tide‐Gauge Observations

Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.
Abstract Global, regional and local sea‐level projections rely on complex process‐based models of the climate‐ocean‐cryosphere system. While extrapolation of observational data has been examined on global and regional scales, this approach has not yet been used for the additional complexities of coastal sea‐level projections.
Jinping Wang, Xuebin Zhang, John A. Church, Matt King, Xianyao Chen   +4 more
wiley   +1 more source