Results 81 to 90 of about 22,981 (256)

Environmental Drivers of Jumbo Squid During Fishery Collapse in the Gulf of California (2019–2024)

Fisheries Oceanography, EarlyView.
ABSTRACT The jumbo squid (Dosidicus gigas) is a cephalopod endemic to the eastern Pacific with significant ecological and economic importance. Its exploitation in the Gulf of California (GC) peaked in the 1990s, with catches exceeding 100,000 tons, but collapsed in 2009 and virtually disappeared by 2015, largely due to environmental changes and ...
Mario Vásquez‐Ortiz, Juan Roberto F. Vallarta‐Zárate, Jesús E. Osuna‐Soto, Emma Verónica Pérez‐Flores, Leslie Altamirano‐López, Ramón Isaac Rojas‐González   +5 more
wiley   +1 more source

Southern Ocean warming: Increase in basal melting and grounded ice loss [PDF]

, 2013
We apply a global finite element sea ice/ice shelf/ocean model (FESOM) to the Antarctic marginal seas to analyze projections of ice shelf basal melting in a warmer climate.
Determann, Jürgen, Hellmer, Hartmut, Timmermann, Ralph   +2 more
core  

Atlantic salmon (Salmo salar L.) kelt rheotaxis and position choice are influenced by flow velocity and turbulence in a regulated river

Journal of Fish Biology, EarlyView.
Abstract The migratory behaviour of Atlantic salmon kelts is poorly understood. Due to the Atlantic salmon's considerable socio‐economic and ecological importance, their precipitous population abundance declines, and the population resilience potential of salmon kelts, addressing these knowledge gaps is important.
Olivia Meredith Simmons, David Aldvén, Patrik Andreasson, Henrik Baktoft, Olle Calles, Ola Diserud, Torbjørn Forseth, Karl Gjelland, Stephanie Müller, Finn Økland, Ana Teixeira da Silva   +10 more
wiley   +1 more source

Workshop - Amundsen Sea Embayment Tectonic and Glacial History - Programme and Abstracts [PDF]

, 2011
Overall Objective: Review existing data and identify priorities for future geoscience research (terrestrial, marine and airborne) in the Amundsen Sea embayment (ASE) region required to develop a better understanding of the past, present and future ...
Anderson, John B., Bentley, Michael J., Gohl, Karsten, Larter, Robert D.   +3 more
core  

AusSeabed Community Guidelines: Satellite Derived Bathymetry. [ENDORSED PRACTICE]

, 2022
The Satellite Derived Bathymetry (SDB) guidelines are intended to provide users of SDB sourced from the AusSeabed portal with the required knowledge to appropriately use SDB datasets. This is not a guide on how to produce SDB, rather a summary of the reliability and risks involved when using SDB for individual use cases.
Ellis, Matthew, Formanek, Rebecca, Townsend, Nigel   +2 more
openaire   +1 more source

Formation process of the gravel‐dominated deposit from the 2011 Tohoku‐oki tsunami in Ofunato, northeastern Japan, inferred by integrating sedimentology and tsunami modelling

Sedimentology, EarlyView.
ABSTRACT Tsunami deposits serve as geological records of past events and are essential for understanding the occurrence and dynamics of tsunamis. However, conventional research has largely focused on sandy and boulder deposits, leaving gravel‐dominated tsunami deposits comparatively underexplored; furthermore, their characteristics and formation ...
Hidetoshi Masuda, Haruki Imura, Koki Nakata, Takashi Ishizawa, Daisuke Sugawara, Kazuhisa Goto   +5 more
wiley   +1 more source

Eddy heat fluxes from direct current measurements of the Antarctic Polar Front in Shag Rocks Passage [PDF]

, 2008
Determining meridional heat flux in the Southern Ocean is critical to the accurate understanding and model simulation of the global ocean. Mesoscale eddies provide a significant but poorly-defined contribution to this transport.
Bryden, Bryden, Bryden, Charnock, David P. Stevens, de Szoeke, Gille, Gordon, Graham J. Walkden, Hall, Hall, Heywood, Jayne, Johnson, Karen J. Heywood, Keffer, Moore, Naveira Garabato, Newton, Nowlin, Nowlin, Orsi, Pawlowicz, Phillips, Sciremammano, Sciremammano, Sievers, Smith, Stammer, Trenberth   +29 more
core   +1 more source

Automated classification of valid and invalid satellite derived bathymetry with random forest

International Journal of Applied Earth Observations and Geoinformation
Recent decades have seen rapid growth in algorithms and workflows for generating bathymetry from multispectral satellite imagery, with the output typically referred to as satellite derived bathymetry (SDB).
Matthew B. Sharr, Christopher E. Parrish, Jaehoon Jung   +2 more
doaj   +1 more source

An Approach to Minimize Atmospheric Correction Error and Improve Physics-Based Satellite-Derived Bathymetry in a Coastal Environment

Remote Sensing, 2020
Physics-based radiative transfer model (RTM) inversion methods have been developed and implemented for satellite-derived bathymetry (SDB); however, precise atmospheric correction (AC) is required for robust bathymetry retrieval.
Christopher O. Ilori, Anders Knudby
doaj   +1 more source

Sediment transport and depositional hydrodynamics on the eastern Korean continental margin revealed by surface sediment granulometry

Sedimentology, EarlyView.
ABSTRACT Terrigenous sediments are transported from coastal areas and shelves to deeper continental margins by multiple processes. Understanding these processes is critical for evaluating the ecological impacts of fine‐grained sediment deposition and predicting future changes in sediment dispersal under rapid climate change.
Gyu Tae Sim, Jang Jun Bahk, Haedo Baek, Jun Ho Jang, In Kwon Um, Dong Eun Lee   +5 more
wiley   +1 more source