Results 161 to 170 of about 217,287 (287)

Seals, Sea Lions, and Walruses [PDF]

A classroom resource for grades 4-8 lessons on these pinnipeds. Guide is complete with background materials (for students and teacher), goals and objectives, a glossary, 9 classroom activities, and a bibliography for obtaining additional resources.

core   +1 more source

Observed Climatic Variability of Global Ocean Stratification

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Oceanic stratification plays a key role in climate by modulating the ocean's resistance to be mixed vertically. However, the climatic variability of stratification remains little documented beyond the deepest reach of winter mixing. Here, we address this gap by performing a global investigation of the spatio‐temporal variability of ...
R. Somavilla, Alberto C. Naveira‐Garabato, César González‐Pola, Julio M. Fernández‐Díaz, Ignasi Vallès‐Casanova   +4 more
wiley   +1 more source

Antarctic Dense Water Formation Sensitivity to Ocean Surface Cell Thickness

Journal of Advances in Modeling Earth Systems
Dense water formation on the Antarctic continental shelf is the main process by which Antarctic Bottom Waters form and is fundamental to the abyssal overturning circulation.
Wilton Aguiar, Adele K. Morrison, Wilma G. C. Huneke, David K. Hutchinson, Paul Spence, Andrew McC. Hogg, Pedro Colombo, Kial D. Stewart   +7 more
doaj   +1 more source

Effects of Improved Tidal Mixing in NEMO One‐Degree Global Ocean Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 2, February 2026.
Abstract Diapycnal mixing in the ocean interior has diverse numerical representations in current global ocean models. These representations affect the simulated transport and storage of oceanic tracers in ways that remain little studied. Here we present the impacts of three different tidal mixing representations in thousand‐year‐long simulations with ...
Casimir de Lavergne, Saurabh Rathore, Gurvan Madec, Jean‐Baptiste Sallée, Christian Ethé, Antoine Nasser, Bruno Millet, Martin Vancoppenolle   +7 more
wiley   +1 more source

Winter thermohaline evolution along and below the Ross Ice Shelf

Nature Communications
The Ross Ice Shelf floats above the southern sector of the Ross Sea and creates a cavity where critical ocean-ice interactions take place. Crucial processes occurring in this cavity include the formation of Ice Shelf Water, the coldest ocean water, and ...
Pierpaolo Falco, Naomi Krauzig, Pasquale Castagno, Angela Garzia, Riccardo Martellucci, Yuri Cotroneo, Daniela Flocco, Milena Menna, Annunziata Pirro, Elena Mauri, Francesco Memmola, Cosimo Solidoro, Massimo Pacciaroni, Giulio Notarstefano, Giorgio Budillon, Enrico Zambianchi   +15 more
doaj   +1 more source

RRS James Clark Ross, December 18, 2002–January 4, 2003. ACCLAIM: Sea level measurements in the Drake Passage [PDF]

, 2004
ACCLAIM Bottom Pressure Recorders have been used for making measurements of the Antarctic Circumpolar Current (ACC) since 1988, initially in the Scotia Sea and then later the Drake Passage between the Falkland Islands and the Antarctic peninsula. Some of
Mack, S.
core  

Orbital Variability in Grazing Proportion: New Insights From Sedimentary Amino Acid δ15N Records of the Western Equatorial Pacific

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract The carbon sequestration capacity of the biological carbon pump (BCP) is determined by surface ocean carbon fixation and the transportation of fixed carbon to the ocean interior, which is closely linked to the trophic structure of planktonic ecosystem.
Chen Li, Haowen Dang, Jinlong Du, Hongliang Li, Jingjing Zhang, Zhimin Jian   +5 more
wiley   +1 more source

Silicate and Carbonate Weathering Perturbation at the Eocene‐Oligocene Transition Recorded by Mg Isotopes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract During the Eocene‐Oligocene Transition (ca. 34 Ma), the Earth underwent a dramatic decline in atmospheric CO2, global cooling, a deepening of the carbonate compensation depth (CCD), and the formation of a permanent ice sheet on Antarctica. The expansion of Antarctic glaciers eroded the underlying bedrock and increased the weathering flux to ...
Adam D. Sproson, Toshihiro Yoshimura, Shigeyuki Wakaki, Takahiro Aze, Yusuke Yokoyama, Tsuyoshi Ishikawa, Naohiko Ohkouchi   +6 more
wiley   +1 more source

Modeling Geoid and Dynamic Topography From Tomography‐Based Thermo‐Chemical Mantle Convection

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Mantle convection causes the most important contribution to the geoid and dynamic topography. With mantle density inferred from high‐resolution tomography models and numerical methods solving the governing equations of viscous mantle flow, the modeled geoid can fit the observations well.
Ronghua Cui, Bernhard Steinberger, Jian Fang   +2 more
wiley   +1 more source

Wind Control of the Interannual Ocean‐Biogeochemical Variability in the South Atlantic Bight

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract In the South Atlantic Bight (SAB), changes in the Gulf Stream (GS), particularly its strength and proximity to the coast, are thought to be primary factors determining the shelf‐break upwelling rate. However, it is still not entirely clear if and to what extent those factors influence cross‐shelf nutrient fluxes and shape the ocean ...
Fabian A. Gomez, Andrew C. Ross, Sang‐Ki Lee, Denis Volkov, Dongmin Kim, Jasmin G. John, Charles A. Stock   +6 more
wiley   +1 more source