Results 91 to 100 of about 9,237 (223)

Causes of the Abrupt and Sustained 2016–2023 Antarctic Sea‐Ice Decline: A Sea Ice–Ocean Model Perspective

Geophysical Research Letters
Antarctic sea ice, which undergoes large seasonal changes and plays a crucial role in the global climate system, showed a gradual increasing trend in its extent from the late 1970s to 2015 but experienced a sharp decline in 2016, followed by record lows ...
K. Kusahara, H. Tatebe
doaj   +1 more source

Perennially ice‐covered lake facies as proxies for ice cover properties and climate: Insights from Lake Joyce, Antarctica

Sedimentology, EarlyView.
ABSTRACT Process‐based depositional models for perennially ice‐covered lakes (PICLs) are important for interpreting palaeolake deposits and their connection to past climate. PICLs are only stable under specific climate states, and unlike other ice‐free or seasonally ice‐covered lakes, PICL deposits generally have bimodal grain sizes: mud introduced by ...
Frances Rivera‐Hernández, Dawn Y. Sumner, Tyler J. Mackey   +2 more
wiley   +1 more source

Tectonic Forcing of Diachronous Salt Deposition During the Badenian Salinity Crisis Revealed by U–Pb Dating of Tephra Overlying Tuzla Basin Evaporites

Terra Nova, EarlyView.
ABSTRACT During the Middle Miocene Badenian Salinity Crisis (BSC), extensive evaporites formed across different tectonic settings in the Central Paratethys. Limited age constraints hamper evaporite correlation and identification of driving mechanisms. Here, we use U–Pb dating of zircon by LA‐ICP‐MS from tephra overlying the Tuzla Basin evaporites.
Nevena Andrić‐Tomašević, Oleg Mandic, Wout Krijgsman, Armin Zeh, Stjepan Ćorić, Sejfudin Vrabac   +5 more
wiley   +1 more source

Anatomy of Arctic and Antarctic sea ice lows in an ocean–sea ice model

The Cryosphere
Sea ice has exhibited a number of record lows in both hemispheres over the past two decades. While the causes of individualsea ice lows have already been investigated, no systematic comparison across events and hemispheres has been conductedin a consistent framework yet.
Benjamin Richaud, François Massonnet, Thierry Fichefet, Dániel Topál, Antoine Barthélemy, David Docquier   +5 more
openaire   +2 more sources

Polar Summer Snow and Ice Albedo Feedbacks Assessed by Satellite Observations and Radiative Kernels

Remote Sensing
Snow and ice albedo feedback (SIAF) is a key process linking cryospheric changes to global warming. Satellite radiative kernels provide another choice for estimating radiative feedbacks, bypassing the complexity of climate model radiative transfer ...
Yulun Zhang, Yetang Wang, Xiaoqian Liu
doaj   +1 more source

Improved Simulation of Antarctic Sea Ice by Parameterized Thickness of New Ice in a Coupled Climate Model

Geophysical Research Letters
Sea ice formation over open water exerts critical control on polar atmosphere‐ocean‐ice interactions, but is only crudely represented in sea ice models. In this study, a collection depth parameterization of new ice for flux polynya models is modified by ...
Yongjie Fang, Junchen Yao, Tongwen Wu, Fanghua Wu, Jianglong Li   +4 more
doaj   +1 more source

SCARFISH: A new SCAR action group to co‐ordinate Antarctic fish research

Journal of Fish Biology, EarlyView.
Jilda Alicia Caccavo, Cassandra Brooks, Erica Carlig, Rachel D. Cavanagh, Thomas Desvignes, Davide Di Blasi, Jennifer J. Freer, Laura Ghigliotti, Christopher Jones, Jin‐Hyoung Kim, Hayley Kwasniewski, Rebecca Konijnenberg, Dale Maschette, Mao Mori, Manuel Novillo, Matthew H. Pinkerton, José Pedro Queirós, William D. K. Reid, Anton P. Van de Putte, Julia M. York, SCARFISH members, José Abreu, Sadie Ainsworth, Rajendran Shobha Ajin, Valentina Bernal‐Durán, Emily Alana Burke, César A. Cárdenas, William A.J. Connor, Andrew Corso, Jacob M. Daane, Tracey Dornan, Patrick Eskuche‐Keith, Nur Azalina Suzianti Feisal, Denisse Fierro‐Arcos, Brittany Finucci, Simona Georgieva, Pedro M. Guerreiro, Svenja Halfter, Philip Hollyman, Huw W. James, Mario La Mesa, Felix Mark, Tshoanelo Miya, Noorashikin Noor, Daniela Nualart, Takehiro Okuda, Chiara Papetti, Charlie Plasman, María Lorena Romero Martínez, Francisco Santa Cruz, Julia Saravia, Daniela Storch, Katharina Teschke, Aimee van der Reis, Luis Vargas‐Chacoff, Andrea Walters, Joel Williams, Philippe Ziegler   +57 more
wiley   +1 more source

Cretaceous–Palaeogene Plate Boundary Evolution at the Pacific Margins of Zealandia and West Antarctica

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.
Improved satellite‐derived gravity data support updated interpretations and models of ancient plate boundaries and plate motions affecting Zealandia and West Antarctica. The models combine to confidently resolve hundreds of kilometres of Late Cretaceous–Eocene motion between the Pacific and Lord Howe plates, confirming that plate circuit constructions ...
Graeme Eagles
wiley   +1 more source

Variability in Overwinter Antarctic Krill Transport Pathways and Connectivity in the South‐West Atlantic Sector of the Southern Ocean

Global Change Biology Communications
Antarctic krill are central to the Southern Ocean ecosystem and support a commercial fishery. Late larval stages of Antarctic krill depend on sea ice for food and shelter during winter.
Aditya Sharma, Abigail J. R. Smith, Sally E. Thorpe, Eugene J. Murphy, Hannah R. S. Dawson, Stuart Corney   +5 more
doaj   +1 more source

Biological Flora of New Zealand 17: Kunzea ericoides (Myrtaceae), Kānuka

New Zealand Journal of Botany, Volume 64, Issue 4, December 2026.
This review summarises the taxonomic status, morphology, physiology, ecology, plant communities, mycological, invertebrate and vertebrate interactions and human use of the New Zealand endemic tree Kunzea ericoides (A. Rich.) Joy Thomps. (kānuka) (Myrtaceae).
P. J. Bellingham, M. S. McGlone, I. A. Dickie, N. Harcourt, P. B. Heenan, J. K. McCarthy, C. H. Watts, M. C. Smale, S. J. Richardson   +8 more
wiley   +1 more source