Results 61 to 70 of about 340 (167)

Near‐Resonant Generation of Internal Tide Superharmonics: Comparing Theoretical Predictions With a Global Ocean Model

Geophysical Research Letters
Internal tides are generated in the stratified ocean interior by the interaction of barotropic tidal currents with rough bathymetry. Low‐vertical‐mode internal tides can transport energy far from their generation site, but it remains unclear how and ...
L. E. Baker, A. Doak, D. Bi
doaj   +1 more source

Environmental factors influencing benthic communities in the oxygen minimum zones on the Angolan and Namibian margins [PDF]

Biogeosciences, 2019
Thriving benthic communities were observed in the oxygen minimum zones along the southwestern African margin. On the Namibian margin, fossil cold-water coral mounds were overgrown by sponges and bryozoans, while the Angolan margin was characterized by ...
U. Hanz, C. Wienberg, D. Hebbeln, G. Duineveld, M. Lavaleye, K. Juva, W.-C. Dullo, A. Freiwald, L. Tamborrino, G.-J. Reichart, G.-J. Reichart, S. Flögel, F. Mienis   +12 more
doaj   +1 more source

Vegetation Increases CH4 Emissions and Methanotroph Diversity in Marine Sediments

Global Change Biology, Volume 32, Issue 7, July 2026.
Seagrass meadows enhance carbon burial but also increase methane (CH4) emissions from marine sediments. The presence of seagrass modifies sediment properties, creating carbon‐rich environments characterized by higher carbon accumulation and CO2 fluxes, which stimulate CH4 production and lead to higher emissions.
Marion Dolivet‐Maréchal, Carlos Palacin‐Lizarbe, Henri M. P. Siljanen, Dhiraj Paul, Abigaïl Delort, Jonathan Gervaix, Charline Creuzé des Châtelliers, Sabine Schmidt, Mathis Cognat, David Sebag, Olivier Taugourdeau, Clara Schübert, Nathalie Labourdette, Isabelle Bertrand, Lorenzo M. W. Rossi, Xavier Le Roux, Agnès Richaume, Alessandro Florio   +17 more
wiley   +1 more source

Rapid changes of the lava‐delta coastlines formed by the 2021 volcanic eruption on La Palma, Canary Islands

Earth Surface Processes and Landforms, Volume 51, Issue 6, June 2026.
A new coastline formed during the 2021 eruption of La Palma quickly eroded, becoming crenellated and with pocket beaches, then retreated more gradually as resistant interiors of the lava were exposed. In contrast, a second thicker lava delta changed more gradually, highlighting the importance of lithology to coastal erosion.
Zhongwei Zhao, Neil C. Mitchell, José Antonio Lozano Rodríguez, Eugenio Fraile‐Nuez, Juan Tomás Vázquez, Rui Quartau, Ricardo S. Ramalho   +6 more
wiley   +1 more source

On the Coherent and Incoherent Characteristics of Semidiurnal Internal Tides Near the Luzon Strait: Influences of Sampling Interval and Observation Duration

Geophysical Research Letters
Internal tides (ITs) usually exhibit incoherent characteristics during their propagation. However, estimations of incoherent ITs from different platform (mooring and satellite) observations exhibit discrepancies, partly due to their different sampling ...
Anzhou Cao, Zheng Guo, Jinbao Song, Xinyu Guo   +3 more
doaj   +1 more source

Tidal River Flood Risk Highest During Intermediate Rather Than Peak River Discharge

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Tidal rivers are defined as the tide‐influenced, salinity‐free inland reaches of estuaries. Understanding the occurrence of peak water levels (PWLs) is critical for flood risk management, yet the timing and magnitude of PWLs in tidal rivers have been little studied. We address this gap by investigating PWLs during two catastrophic floods (1954
Leicheng Guo, Adam T. Devlin, Ton Hoitink, Ian Townend, David A. Jay, Zheng Bing Wang, Chunyan Zhu, Hamed R. Moftakhari, Qing He, Fan Xu, Yuanyang Wan, Yuan Xu, Weiming Xie   +12 more
wiley   +1 more source

Observations of cross-shelf transport due to internal wave pumping on the Bay of Biscay shelf [PDF]

Ocean Science
Coastal cross-shelf transport drives the redistribution of sediment, nutrients and pollutants on continental shelves. Here, the cross-shelf volume flux is quantified from in situ measurements at two coastal sites on the Bay of Biscay (BoB) shelf.
A. Moncuquet, N. L. Jones, L. Bordois, F. Dufois, P. Lazure   +4 more
doaj   +1 more source

Hydrographic Variability and Sound‐Channel Dynamics in the Nordic Seas: Implications for Predicting Acoustic Arrival Structure

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Warm, saline Atlantic waters and fresher Arctic‐origin waters converge in the central Nordic Seas, creating strong mesoscale and submesoscale variability that influences both hydrography and sound propagation. During the Northern Ocean Rapid Surface Evolution 2022 experiment, high‐resolution temperature and salinity measurements were collected
Megan S. Ballard, Alejandra Sanchez‐Rios, Robert T. Taylor, Timothy F. Duda, J. Thomas Farrar, Harper Simmons, Jason D. Sagers, Jennifer Mackinnon, Andrew J. Lucas, Leah Johnson, Ailin Brakstad, Ilker Fer   +11 more
wiley   +1 more source

Power Estimates Associated With Internal Tides From the Monterey Bay Area [PDF]

Oceanography, 2012
Numerical modeling has proven to be a useful method for simulating internal tides within the coastal ocean. Monterey Bay is a location that experiences energetic semidiurnal internal tides, and they are pronounced within Monterey Submarine Canyon ...
Steven M. Jachec
doaj  

Internal tides on the Al-Batinah shelf: evolution, structure and predictability [PDF]

Ocean Science
Internal tides are a key mechanism of energy transfer on continental shelves. We present observations of internal tides on the northern Oman shelf based on moored temperature and velocity records collected during 2021–2022.
G. A. Bruss, E. Font, B. Y. Queste, R. A. Hall, R. A. Hall   +4 more
doaj   +1 more source