Results 121 to 130 of about 22,964 (247)

From Spinning Sea Ice Floes to Ocean Enstrophy Spectra in the Marginal Ice Zone

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Quantifying kinetic energy (KE) and enstrophy transfer, mixing, and dissipation in the Arctic Ocean is key to understanding polar ocean dynamics, which are critical components of the global climate system. However, in ice‐covered regions, limited eddy‐resolving observations make characterizing KE and enstrophy transfer across scales ...
M. Kim, G. E. Manucharyan, M. H. DiBenedetto, E. M. Buckley, D. M. Watkins, M. M. Wilhelmus   +5 more
wiley   +1 more source

Improving Satellite-derived Bathymetry

, 2016
Bathymetry is traditionally acquired using singlebeam or multibeam echosounders. This method produces accurate depth measurements along transects but is constrained by operating cost and an inability to survey in very shallow waters. Airborne Lidar is able to produce accurate bathymetric information over clear waters at depths up to 70m, but can be ...
openaire   +1 more source

Interplay of Tectonics and Topography Facilitated Sudden Dyke Intrusion in 2022 at São Jorge Island, Azores

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Oblique slow rifting in a hotspot setting has created a distributed volcanic zone in the central part of the Azores but it's unclear what causes focusing of magma upflow under the islands within a wide plate boundary deformation zone. For São Jorge Island, we use a three‐dimensional finite element model to evaluate crustal stress from the ...
J. D’Araújo, A. Hooper, M. Lazecky, F. Sigmundsson, F. Albino, T. Ferreira, J. L. Gaspar   +6 more
wiley   +1 more source

Improving the Accuracy of Optical Satellite-Derived Bathymetry Through High Spatial, Spectral, and Temporal Resolutions

Remote Sensing
Accurate nearshore bathymetry is essential for various marine applications, including navigation, resource management, and the protection of coastal ecosystems and the services they provide.
Giovanni Andrea Nocera, Valeria Lo Presti, Attilio Sulli, Antonino Maltese   +3 more
doaj   +1 more source

Mapping South Baltic Near-Shore Bathymetry Using Sentinel-2 Observations

Polish Maritime Research, 2017
One of the most promising new applications of remote observation satellite systems (RO) is the near-shore bathymetry estimation based on spaceborn multispectral imageries.
Chybicki Andrzej
doaj   +1 more source

Understanding the marine environment : seabed habitat investigations of the Dogger Bank offshore draft SAC [PDF]

, 2009
This report details work carried out by the Centre for Environment, Fisheries and Aquaculture Science (Cefas), British Geological Surveys (BGS) and Envision Ltd. for the Joint Nature Conservation Committee (JNCC).
Diesing, Markus, Forster, Rodney, Foster-Smith, Bob, Long, David, Morando, Angela, Stewart, Heather, Vanstaen, Koen, Ware, Susanne   +7 more
core  

Insights From Two Decades of Seismicity at Columbia Glacier

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We use Columbia Glacier as a case study to demonstrate how seismically cataloged calving events in Alaska can track glacier evolution over two decades. By combining this catalog—a serendipitous byproduct of earthquake monitoring—with terminus positions, bathymetry, glacier thickness, surface velocity, and environmental records, we show how ...
Sebin John, Michael E. West, Martin Truffer   +2 more
wiley   +1 more source

Coral δ13C Reveals Little Ice Age Dimming of Tropical Surface Shortwave Radiation Not Captured by Climate Models

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Tropical low‐cloud feedback is the largest source of uncertainty in climate sensitivity, yet multi‐century records of surface shortwave radiation are scarce. We calibrate Porites coral δ13C against satellite photosynthetically available radiation (PAR) and reconstruct monthly PAR for the northern South China Sea during the Medieval Climate ...
Guangchao Deng, Huimin Guo, Xuefei Chen, Jian‐xin Zhao, Gangjian Wei, Wenfeng Deng   +5 more
wiley   +1 more source

High-accuracy shallow-water bathymetric method including reliability evaluation based on Sentinel-2 time-series images and ICESat-2 data

Frontiers in Marine Science
Shallow-water bathymetric maps provide vital geographic information for various coastal and marine applications such as environmental management, engineering construction, oil and gas resource exploration, and ocean fisheries. Recently, satellite-derived
Yuan Le, Xiaoyu Sun, Yifu Chen, Yifu Chen, Dongfang Zhang, Lin Wu, Lin Wu, Hai Liu, Mengzhi Hu   +8 more
doaj   +1 more source

Topographic Anchoring and the “Silent Period” of Deep‐Water Polynyas in the 90°W–90°E Antarctic Sector

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Antarctic deep‐water polynyas act as critical windows driving deep ocean ventilation, exerting profound impacts on the global thermohaline circulation and biogeochemical cycles. Utilizing high‐resolution satellite remote sensing and ocean reanalysis data from 2003 to 2022, this study identified eight recurring deep‐water polynyas within the ...
Xiaole Fan, Xiaowen Luo, Hongyang Wan, Jiaxin Cui, Jiayang Chen, Qiyu Feng   +5 more
wiley   +1 more source