Results 151 to 160 of about 91,538 (269)

Recent observations of Antarctic sea‐ice

Weather, 1999
Antarctic sea-ice is potentially one of the most sensitive global warming indicators. Some re- cent studies using coupled ocean-atmosphere general circulation models suggest that C0,- induced warming and concomitant sea-ice re- duction might be less marked than in the Arctic (Gordon and O’Farrell 1997); certainly the ...
openaire   +1 more source

Deep Proteomic Profiles of the Antarctic Diatom Fragilariopsis Cylindrus Under Varying Iron and Manganese Conditions

PROTEOMICS, Volume 26, Issue 5, Page 112-119, May 2026.
ABSTRACT Fragilariopsis cylindrus is a key diatom in the Southern Ocean, where low iron and manganese availability constrain primary production and biogeochemical activity. The molecular mechanisms used by polar diatoms, including F. cylindrus, to cope with trace metal limitations remain largely unexplored.
Loay J. Jabre, Elden Rowland, J. Scott P. McCain, Erin M. Bertrand   +3 more
wiley   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

Shipboard Marine Gravimeters Operated on Vessels in the U.S. Academic Research Fleet: Capabilities and Data Quality

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Shipboard gravity anomaly data provide high‐resolution information for a wide range of Earth and ocean science research as well as ground‐truthing US national geodetic modeling. Motivated by the end of life‐cycle for legacy Bell aerospace marine Gravity Meter system (BGM‐3) gravimeters onboard vessels in the U.S. Academic Research Fleet, a new
Jyun‐Nai Wu, Masako Tominaga, Hannah Mark, Jian Zhu, Daniel Fornari, Maurice Tivey, Thomas Lanagan, Steve Faluotico, Eric Hayden, Marissa Small, Daniel Aliod, Nigel Brady, Alicia Metzger, Potential Field Pool Equipment program   +13 more
wiley   +1 more source

Snow Cover Impacts on Antarctic Sea ice

, 2016
Snow on Antarctic sea ice has tremendous impacts on Albedo, light transmission and sea ice mass balance. Snow Buoys (Nicolaus et al., 2021) measure snow accumu- lation over time with four ultra sonic sensors. Here we present 14 Snow Buoys which were deployed in the Wed- dell Sea since 2013.
Rossmann, Leonard, Nicolaus, Marcel, Lehning, Michael, Wever, Nander, Couttet, Margaux, Kaleschke, Lars, Maaß, Nina   +6 more
openaire   +3 more sources

A Sea‐Ice‐Enhanced KPP Parameterization: Impacts on AMOC Simulation and Physical Pathways

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract This study presents a sea‐ice‐enhanced K‐profile parameterization to improve simulations of the Atlantic Meridional Overturning Circulation (AMOC) in ocean–sea ice coupled models. The modified KPP dynamically scales the background vertical diffusivity with local sea‐ice fraction, representing the insulating and turbulence‐suppressing effects ...
Yu‐Heng Tseng, Yi‐Wen Wang
wiley   +1 more source

Origin of Late Noachian‐Early Hesperian Valley Networks on Mars: Insights From Landform Evolution and Ice Sheet Modeling

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Dendritic valley networks on Mars have been cited as evidence for a warm and wet Noachian Mars, permitting rainfall precipitation and surface runoff. However, the climatic conditions required to sustain rainfall on early Mars remain debated.
K. R. Karpenko, J. L. Fastook, J. W. Head, A. D. Howard, C. I. Fassett, J. L. Dickson, K. E. Scanlon, B. D. Boatwright   +7 more
wiley   +1 more source

Expansion of the Eastern Tropical North Pacific Oxygen Minimum Zone During the Last Deglaciation Recorded by Planktic Foraminifera

Paleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.
Abstract Climate change is currently driving the expansion of oxygen minimum zones (OMZs), areas of the open ocean with consistently low oxygen levels. Changes in temperature, productivity and consequent respiration, and water mass ventilation drive OMZ expansion and contraction with implications for ecosystem function and biogeochemical cycling ...
Rachel Alcorn, Jorge Feliciano Ontiveros‐Cuadras, Anjaly Govindankutty Menon, Nicolaas Glock, Eric Tappa, Janet Burke, María Luisa Machain Castillo, Catherine Davis   +7 more
wiley   +1 more source

Enhanced Wind Linked to Ozone Depletion Influences Photoprotective Responses in Antarctic Mosses via Water Stress

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Climate change, including ozone depletion, has altered wind regimes around Antarctica in recent decades, intensifying environmental stress on coastal moss communities. However, the physiological impacts of wind on mosses remain poorly understood. This study explored the potential climatic drivers of wind speed (WS) changes and investigated the
Yifan Wu, Hao Yin, Krystal L. Randall, Melinda J. Waterman, Johanna D. Turnbull, Sharon A. Robinson   +5 more
wiley   +1 more source

Microplastic Impacts on Seafood: A Global Synthesis of Experimental Findings

Fish and Fisheries, Volume 27, Issue 3, Page 591-606, May 2026.
ABSTRACT Plastic pollution is a growing global concern, with plastic and microplastic particles now widespread in aquatic environments. Microplastics are frequently ingested by marine organisms, including commercially important seafood species. Ingestion can lead to a range of biological effects, influenced by the size, type and quantity of plastic, as
Nina Wootton, Patrick Reis‐Santos, Rhiannon A. Van Eck, Isaac Duke, Bronwyn M. Gillanders   +4 more
wiley   +1 more source