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Ocean Dynamics: Numerical Models and Applications
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Ocean Dynamics: Numerical Models and Applications

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Physical Oceanography".

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 5871

Special Issue Editors

Prof. Dr. Jiuxing Xing

E-Mail Website
Guest Editor
Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
Interests: ocean dynamics; development and application of numerical models
Prof. Dr. Changsheng Chen

E-Mail Website
Co-Guest Editor
School for Marine Science and Technology, University of Massachusetts-Dartmouth, New Bedford, MA 02744-1221, USA
Interests: modeling and observational exploration of coastal ocean circulation; oceanic frontal processes; biological and physical interactions; arctic ocean and climate change
Special Issues, Collections and Topics in MDPI journals
Dr. Yi-Chia Hsin

E-Mail Website
Co-Guest Editor
Academia Sinica, Research Center for Environmental Changes, Taipei, Taiwan
Interests: physical oceanography; multi-scale numerical ocean modeling; dynamical studies on currents around Taiwan and equatorial currents; development of coupling model
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recent applications of theoretical, observational, and numerical modeling techniques to ocean processes, as well as several interdisciplinary fields, have led to a more in-depth study of nearshore ocean physics, continental shelf physical processes (such as turbulence and internal waves, tides and internal tides, offshore circulation, fronts, and wind-waves), biogeochemical feedbacks, hydrodynamics and circulation processes, and sub-mesoscale and small-scale dynamics. These play a very important role in improving operational oceanographic services.

This Special Issue on "Ocean Dynamics: Numerical Models and Applications" will focus on both ocean models’ applications and established/new implementations of ocean models. All areas of ocean dynamics, from large ocean circulations to single vortices, or plume structures to small-scale turbulence, are welcome. Papers focusing on theoretical or observational (in situ or remote sensing monitoring or satellite observations) applications and modeling studies; variant numerical methods; and machine learning, artificial intelligence, data assimilation, remote sensing techniques, and applications are also welcome.

Prof. Dr. Jiuxing Xing
Prof. Dr. Changsheng Chen
Dr. Yi-Chia Hsin
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • ocean circulation modeling
  • marine biogeochemical modeling
  • ocean dynamics model and coupled modeling
  • dynamical processes of fronts and cold-water masses
  • multiresolution ocean modeling
  • ocean data assimilation progresses
  • modeling on variability and dynamics in the ocean
  • coastal modeling
  • multiscale ocean dynamics
  • ocean hydrodynamics model
  • shelf sea hydrodynamics model
  • ocean model application
  • waves and internal waves
  • wind-waves
  • data assimilation

Published Papers (3 papers)

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Research

17 pages, 13621 KiB  
Article
Thermohaline Dynamics in the Northern Continental Slope of the South China Sea: A Case Study in the Qiongdongnan Slope
by Zhiguo He, Wenlin Hu, Li Li, Thomas Pähtz and Jianlong Li
J. Mar. Sci. Eng. 2022, 10(9), 1221; https://doi.org/10.3390/jmse10091221 - 1 Sep 2022
Cited by 1 | Viewed by 1467
Abstract
Understanding the marine hydro-thermohaline environment is essential for terrestrial meteorology and the coastal ecosystem. Here, we provide insight into the hydro-thermohaline environment at the Qiongdongnan continental slope of the northern South China Sea and the mechanism controlling it, with focus on its short-term [...] Read more.
Understanding the marine hydro-thermohaline environment is essential for terrestrial meteorology and the coastal ecosystem. Here, we provide insight into the hydro-thermohaline environment at the Qiongdongnan continental slope of the northern South China Sea and the mechanism controlling it, with focus on its short-term characteristics. We employ a well-validated three-dimensional unstructured-grid-based Finite Volume Coastal Ocean Model (FVCOM) to analyze the spatial-temporal behavior of its hydro-thermohaline structures and to quantify the transport fluxes over a full tidal period. The analysis reveals a two-layer flow structure with directionally oppositely moving layers in the along-isobaths direction. Furthermore, transport patterns undergo periodic changes. During the spring tide, the downslope (along-isobaths) transport of water/heat/salt is approximately 119%/70%/120% higher (62%/62%/62% lower) than during the neap tide. From analyzing the different terms in the thermohaline balance equation, we find that the main dynamic factors controlling heat transport over a tidal period are the gravitational convention and the mean flow, while the salt transport is only dominated by the mean flow. The data of the short-term thermohaline evolution of the QDNS provided in this study may be of use for future studies of the northern SCS, including its marine ecology and marine fisheries. Full article
(This article belongs to the Special Issue Ocean Dynamics: Numerical Models and Applications)
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19 pages, 7644 KiB  
Article
A Wet/Dry Point Treatment Method of FVCOM, Part II: Application to the Okatee/Colleton River in South Carolina
by Changsheng Chen, Haosheng Huang, Huichan Lin, Jack Blanton, Chunyan Li and Francisco Andrade
J. Mar. Sci. Eng. 2022, 10(7), 982; https://doi.org/10.3390/jmse10070982 - 18 Jul 2022
Cited by 4 | Viewed by 1688
Abstract
The wet/dry point treatment method of FVCOM was applied to simulate the tide-induced flooding/drying process in the estuarine–tidal-creek–saltmarsh complex of the Okatee/Colleton River Estuary, South Carolina. The simulation results were compared with observed currents at three mooring sites and flooded areas observed from [...] Read more.
The wet/dry point treatment method of FVCOM was applied to simulate the tide-induced flooding/drying process in the estuarine–tidal-creek–saltmarsh complex of the Okatee/Colleton River Estuary, South Carolina. The simulation results were compared with observed currents at three mooring sites and flooded areas observed from remote-sensing hypsometric measurements, demonstrating that FVCOM can robustly reproduce tidal and residual currents in the river and the flooding process onto the intertidal saltmarsh. The simulated flow field reveals that the Okatee/Colleton River Estuary is characterized by multiple residual eddies. Driven by the periodic tidal forcing, this estuarine system features a chaotic water transport process. Numerous residual eddies around the barrier complex in the Colleton River likely enhance the water exchange between the Okatee/Colleton River Estuary and the outer Broad River. A sensitivity study of flooding speed to the slope of the inter-tidal zone suggests that the saltmarsh bathymetry considerably influences the water elevation near low slack water but not on the maximum water coverage area at high slack water. Full article
(This article belongs to the Special Issue Ocean Dynamics: Numerical Models and Applications)
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17 pages, 3541 KiB  
Article
A Wet/Dry Point Treatment Method of FVCOM, Part I: Stability Experiments
by Changsheng Chen, Jianhua Qi, Hedong Liu, Robert C. Beardsley, Huichan Lin and Geoffrey Cowles
J. Mar. Sci. Eng. 2022, 10(7), 896; https://doi.org/10.3390/jmse10070896 - 28 Jun 2022
Cited by 5 | Viewed by 1793
Abstract
A 3-dimensional wet/dry point treatment method was developed for the unstructured-grid Finite-Volume Community Ocean Model (FVCOM). Analytical equations were derived to examine discretized errors that occurred during the flooding/drying process by the wet/dry point treatment for the flooding/drying process. Numerical experiments were carried [...] Read more.
A 3-dimensional wet/dry point treatment method was developed for the unstructured-grid Finite-Volume Community Ocean Model (FVCOM). Analytical equations were derived to examine discretized errors that occurred during the flooding/drying process by the wet/dry point treatment for the flooding/drying process. Numerical experiments were carried out for an idealized estuary, including the inter-tidal zone. The model results show that if the ratio of internal to external mode time steps (Isplit) is appropriately selected, FVCOM was capable of simulating the flooding/drying process with sufficient accuracy to ensure the mass conservation. The up-bound limit of Isplit was restricted by the bathymetric slope of the inter-tidal zone, external mode time step, horizontal/vertical resolution, and amplitude of tidal forcing at the open boundary, as well as the thickness of the viscous layer specified in the model. Criteria for time steps via these parameters were derived from these experiments, which provide a helpful guide in selecting Isplit for applying FVCOM to realistic geometric estuaries. Full article
(This article belongs to the Special Issue Ocean Dynamics: Numerical Models and Applications)
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