Results 91 to 100 of about 465 (179)

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

Impact of Wind Forcing Resolution on Modeled Wave Extremes at the Coastal Boundary

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Accurate wind forcing is essential for modeling extreme wave conditions. This study evaluates how wind resolution influences the representation of maximum wind speeds and the simulation of maximum significant wave heights across two cyclone environments: extratropical cyclones in Australia and tropical cyclones in the Philippines.
I. B. Villalba, M. D. Harley, A. Sharma
wiley   +1 more source

Uncovering Ocean Mixed Layer Dynamics From the Sea Surface State

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Submesoscale dynamics strongly influence the upper ocean, regulating mixing, air–sea exchange, and vertical heat transport. The recent Surface Water and Ocean Topography mission provides unprecedented high‐resolution observations of sea surface height (SSH), yet linking these surface measurements to subsurface ocean dynamics remains ...
Yidongfang Si, Leah Johnson, Abigail Bodner   +2 more
wiley   +1 more source

First Assessment of ICESat‐2 Summer Sea Ice Freeboard With Airborne Validation

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract ICESat‐2 has demonstrated solid performance in retrieving sea ice freeboard during winter, when sea ice surface types are well‐defined and leads provide reliable sea surface height references. Summer retrievals are challenging because melt ponds are not explicitly distinguished in the ATL07 surface classification and may be identified as ice ...
Ellen M. Buckley, Sahra Kacimi, Melinda Webster, Siddarth Harrison, Kutalmis Saylam, Nathan T. Kurtz, Rachel L. Tilling   +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

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, Volume 43, Issue 5, Page 3292-3311, August 2026.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 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

Seasonal Re‐Entrainment of Respired Organic Matter Decouples Southern Ocean Surface Production and Annual Net Community Production

AGU Advances, Volume 7, Issue 5, August 2026.
Abstract The long‐term storage of carbon by the biological carbon pump depends on the amount of organic carbon produced in sunlit waters, the depth at which that organic carbon is respired, and the time until the respired carbon is again in contact with the atmosphere. In the Southern Ocean, estimates of organic carbon export, net community production (
Shannon McClish, Seth Bushinsky, Nathan Briggs, Ivana Cerovečki, Clara Douglas   +4 more
wiley   +1 more source

Using Machine Learning to Predict Phytoplankton Blooms in the Salish Sea

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Strong phytoplankton blooms occur every spring in the Salish Sea, but vary significantly, spatially and temporally. Natural variability and climate change make the prediction of the bloom challenging, as they affect both atmospheric drivers and nutrient interactions that contribute to the growth of phytoplankton. Understanding these drivers is
Ilias Bougoudis, Karyn Suchy, Susan E. Allen, Matias Salibian‐Barrera   +3 more
wiley   +1 more source

Physics-Based Satellite-Derived Bathymetry (SDB) Using Landsat OLI Images

Remote Sensing
The estimation of depth in optically shallow waters using satellite imagery can be efficient and cost-effective. Active sensors measure the distance traveled by an emitted laser pulse propagating through the water with high precision and accuracy if the ...
Minsu Kim, Jeff Danielson, Curt Storlazzi, Seonkyung Park   +3 more
doaj   +1 more source