Results 21 to 30 of about 3,827 (214)

Impact of upstream variability on the Loop Current dynamics in numerical simulations of the Gulf of Mexico

Frontiers in Marine Science, 2023
The Loop Current (LC), which is the main mesoscale dynamic feature of the Gulf of Mexico (GoM), has a major impact on the circulation and its variability in the interior Gulf. The LC is a highly variable and dynamic feature. It changes shape from a short
Rémi Laxenaire, Rémi Laxenaire, Rémi Laxenaire, Eric P. Chassignet, Dmitry S. Dukhovskoy, Dmitry S. Dukhovskoy, Steven L. Morey, Steven L. Morey   +7 more
doaj   +1 more source

Modelling the global coastal ocean [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2008
Shelf and coastal seas are regions of exceptionally high biological productivity, high rates of biogeochemical cycling and immense socio-economic importance. They are, however, poorly represented by the present generation of Earth system models, both in terms of resolution and process representation.
Holt, J., Harle, J., Proctor, R., Michel, S., Ashworth, M., Batstone, C., Allen, I., Holmes, R., Smyth, T., Haines, K., Bretherton, D., Smith, G.   +11 more
openaire   +4 more sources

Microplastics in the Mediterranean: Variability From Observations and Model Analysis

Frontiers in Marine Science, 2022
In this study, the abundance and properties (size, shape, and polymer type) of microplastics (MPs) in sea surface water samples, collected during two sampling campaigns over 2018–2019, in four coastal areas of the Mediterranean Sea (Saronikos Gulf ...
Kostas Tsiaras, Elisa Costa, Silvia Morgana, Chiara Gambardella, Veronica Piazza, Marco Faimali, Roberta Minetti, Christina Zeri, Melilotus Thyssen, Sana Ben Ismail, Yannis Hatzonikolakis, Yannis Hatzonikolakis, Sofia Kalaroni, Francesca Garaventa   +13 more
doaj   +1 more source

Sensitivity of a Coarse‐Resolution Global Ocean Model to a Spatially Variable Neutral Diffusivity

Journal of Advances in Modeling Earth Systems, 2022
Motivated by recent advances in mapping mesoscale eddy tracer mixing in the ocean we evaluate the sensitivity of a coarse‐resolution global ocean model to a spatially variable neutral diffusion coefficient κn(x, y, z).
R. M. Holmes, S. Groeskamp, K. D. Stewart, T. J. McDougall   +3 more
doaj   +1 more source

Basin-scale tracer replacement timescales in a one-degree global OGCM

Frontiers in Marine Science, 2023
This study investigates basin-scale tracer replacement timescales of the two polar oceans and the Atlantic, Indian, and Pacific Oceans using a one-degree global ocean-sea ice model that represents oceans under the largest Antarctic ice shelves, the ...
Kazuya Kusahara, Hiroaki Tatebe
doaj   +1 more source

Strategies for the Simulation of Sea Ice Organic Chemistry: Arctic Tests and Development

Geosciences, 2017
A numerical mechanism connecting ice algal ecodynamics with the buildup of organic macromolecules is tested within modeled pan-Arctic brine channels. The simulations take place offline in a reduced representation of sea ice geochemistry.
Scott Elliott, Nicole Jeffery, Elizabeth Hunke, Clara Deal, Meibing Jin, Shanlin Wang, Emma Elliott Smith, Samantha Oestreicher   +7 more
doaj   +1 more source

Storm Surge Modeling as an Application of Local Time‐Stepping in MPAS‐Ocean

Journal of Advances in Modeling Earth Systems, 2023
This paper presents the first practical application of local time‐stepping (LTS) schemes in the Model for Prediction Across Scales‐Ocean (MPAS‐O). We use LTS schemes in a single‐layer, global ocean model that predicts the storm surge around the eastern ...
Jeremy R. Lilly, Giacomo Capodaglio, Mark R. Petersen, Steven R. Brus, Darren Engwirda, Robert L. Higdon   +5 more
doaj   +1 more source

Shrinking of the Arabian Sea oxygen minimum zone with climate change projected with a downscaled model

Frontiers in Marine Science, 2023
In Arabian Sea (AS), land-locked northern boundary and strong seasonal productivity lead to the formation of one of the most intense open ocean Oxygen Minimum Zones (OMZs).
Parvathi Vallivattathillam, Zouhair Lachkar, Marina Lévy   +2 more
doaj   +1 more source

Assessment of predictability of the Loop Current in the Gulf of Mexico from observing system experiments and observing system simulation experiments

Frontiers in Marine Science, 2023
This study presents results from numerical model experiments with a high-resolution regional forecast system to evaluate model predictability of the Loop Current (LC) system and assess the added value of different types of observations.
Dmitry S. Dukhovskoy, Eric P. Chassignet, Alexandra Bozec, Steven L. Morey   +3 more
doaj   +1 more source

The Parallelization of the Princeton Ocean Model

, 1999
In this paper we present the parallel implementation of the Princeton Ocean Model (POM) using message passing. Domain decomposition techniques are used for the horizontal discretization whereas in the vertical direction each column per grid point is computed.
L. A. Boukas, N. Th. Mimikou, Nikolaos M. Missirlis, G. L. Mellor, A. Lascaratos, G. Korres   +5 more
openaire   +2 more sources