Article
Multidisciplinary Sciences
Jianfeng Wang, Fei Yu, Feng Nan, Qiang Ren, Zifei Chen, Tongtong Zheng
Summary: Ocean turbulence plays a crucial role in the transfer of heat, nutrients, momentum and sea level rise within the climate system. Research around the Luzon Strait revealed that turbulent kinetic energy dissipation rates are similar between the northeastern South China Sea and West Pacific, with notable enhancement near rough topography areas. The bottom diapycnal diffusivity in the South China Sea increases by a factor of three in the West Pacific, contrary to earlier indirect parameterization estimations.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Marine
Zhongjie He, Xiachuan Fu, Yueqi Zhao, Xuyu Jiang
Summary: This study investigates the energy transfers and conversions of Kuroshio in the Luzon Strait and its adjacent regions through multiscale energy and vorticity analysis. The results show that kinetic energy inverse cascades dominate the energy transfer east of Luzon, while potential energy cascades drive the accumulation of eddy energy in the South China Sea west of Luzon Strait. The study highlights the importance of local and non-local interactions in understanding the energy dynamics in these regions.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Yaohua Zhu, Jingxin Yao, Tengfei Xu, Shujiang Li, Yonggang Wang, Zexun Wei
Summary: Based on satellite data and in situ measurements, a weakening trend of the Luzon Strait overflow has been identified, along with a large annual cycle. This weakening trend may significantly affect the deep circulation of the South China Sea and the heat and mass fluxes between the South China Sea and surrounding oceans.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Guoqin Tang, Zengan Deng, Ru Chen, Fangrui Xiu
Summary: This study found that the Kuroshio has negligible impact on the generation site of internal tides in the South China Sea, but it significantly guides the propagating direction of the internal tides and decreases the energy fluxes going out of the Luzon Strait.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Engineering, Marine
Xiachuan Fu, Zhongjie He, Yueqi Zhao, Xuyu Jiang, Mengyao Wang
Summary: This study discussed the impact of selecting correction targets on long-term spectral nudging, focusing on the Luzon Strait and its adjacent areas. The results showed that using real-time targets improved consistency with observations and better simulated meso- and small-scale characteristics. Adjusting large-scale potential energy was found to be significant in improving overall simulation ability.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Meteorology & Atmospheric Sciences
Ruili Sun, Peiliang Li, Yanzhen Gu, Fangguo Zhai, Yunwei Yan, Bo Li, Yang Zhang
Summary: Based on satellite data and model analysis, this study investigated the counter-rotating eddy pair in the Luzon Strait. The results showed that the counter-rotating eddy pair exhibits distinct seasonal variation, with the anti-cyclonic mode occurring mainly in summer and the cyclonic mode occurring mainly in winter. The dynamic mechanism of the counter-rotating eddy pair occurrence was determined through vorticity budget equation and energy analysis.
Article
Environmental Sciences
Haitao Li, Yiyong Chen, Xi Li, Peng Zhou, Xiaofei Xiong
Summary: Accurate species identification and biodiversity assessment of larval fish are crucial for fisheries management and conservation. This study used DNA barcoding to assess larval fish species diversity in the Luzon Strait and adjacent waters. It provided valuable insights into the species composition, diversity, and geographical distribution of larval fish communities in the region.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Caio Eadi Stringari, Pedro Veras Guimaraes, Jean-Francois Filipot, Fabien Leckler, Rui Duarte
Summary: Wave breaking is a crucial process for energy dissipation in the ocean, but a proper understanding is lacking due to limited observational field data. A novel machine learning method is introduced in this study to detect active wave breaking with a high classification accuracy score of approximately 90%. The method can be used for statistical description of breaking wave properties.
SCIENTIFIC REPORTS
(2021)
Article
Meteorology & Atmospheric Sciences
Yi-Chun Kuo, Yu-Heng Tseng
Summary: The study shows that during El Nino, anomalous low-level circulation over the Philippine Sea strengthens the formation of mesoscale eddies, making the Kuroshio pattern in the Luzon Strait more unstable; while during La Nina, local wind stress and associated curl anomalies contribute to the formation of cyclonic eddies.
Article
Oceanography
Matthew H. Alford, Jonathan D. Nash, Maarten Buijsman
Summary: This study presents moored observations and a realistic, tidally forced 3D model of flow and internal-tide-driven turbulence over a supercritical 3D fan in southeastern Luzon Strait. The observations and the model are in reasonable agreement, allowing the model to be used to understand the 3D flow. Maximum turbulence occurs following the transition from up-fan to down-fan flow, consistent with breaking lee waves, but asymmetric flow arises because of the 3D topography.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2023)
Article
Physics, Multidisciplinary
Lukas Hauer, Zhuoyun Cai, Artem Skabeev, Doris Vollmer, Jonathan T. Pham
Summary: Contact with swollen substrates induces capillary mediated phase separation in wetting ridges. Using confocal microscopy, we observe phase separation of silicone oil from a cross-linked silicone network during sliding of water drops. We find an inverse relationship between oil tip height and drop sliding speed, explained by competing transport timescales of oil molecules: separation rate versus drop advection speed. Separation rates in highly swollen networks are as fast as diffusion in pure melts.
PHYSICAL REVIEW LETTERS
(2023)
Article
Oceanography
Zhiwu Chen, Gengbin Liu, Zhiyu Liu, Shaomin Chen, Huaihao Lu, Jiexin Xu, Yankun Gong, Jieshuo Xie, Yinghui He, Ju Chen, Yunkai He, Shuqun Cai
Summary: Wind-induced and tide-induced near-inertial internal waves (NIWs) in Luzon Strait can mutually enhance each other, with most of the additional near-inertial energy (NIE) coming from the tides. Neglecting tide-induced NIWs could lead to an underestimation of the total NIE by almost 50%.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2022)
Article
Oceanography
Hongyang Lin, Siyu Xu, Zhiyu Liu, Jianyu Hu, Fangtao Zhang, Zhiyong Cao
Summary: This study uses high-resolution, cross-frontal towed measurements to investigate temperature-salinity (T-S) compensation and its scale dependence in the Taiwan Strait. It is found that T-S compensation occurs within the interfacing zone, with temperature and salinity getting more (less) compensated at smaller scales in the S-dominated (T-dominated) frontal zone. The restratification-cooling mechanism, induced by submesoscale instabilities, explains the observed density compensating features on both flanks of the transition zone.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Geosciences, Multidisciplinary
Qinbo Xu, Linlin Zhang, Xin Xiao, Chun Zhou, Fan Wang, Dunxin Hu
Summary: This article investigates the seasonal connection between LSDO and DWBC, revealing that the seasonal variation in DWBC influences the LSDO by adjusting the temperature field on the east side of the Luzon Strait.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Engineering, Marine
Zheen Zhang, Xueen Chen, Thomas Pohlmann
Summary: The study reveals that the generation of internal tides in the Luzon Strait is significantly influenced by fortnightly stratification variability induced by tide-topography interaction. The analysis suggests that this stratification variability can affect the energy transfer between barotropic and baroclinic tides. Additionally, the study shows a lead-lag relation between barotropic tidal forcing and maximum baroclinic response within the fortnightly tidal cycle.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
R. H. Jackson, J. D. Nash, C. Kienholz, D. A. Sutherland, J. M. Amundson, R. J. Motyka, D. Winters, E. Skyllingstad, E. C. Pettit
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Oceanography
Hauke Blanken, Charles Hannah, M. Klymak Jody, Tamas Juhasz
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2020)
Article
Geography, Physical
Jason M. Amundson, Christian Kienholz, Alexander O. Hager, Rebecca H. Jackson, Roman J. Motyka, Jonathan D. Nash, David A. Sutherland
JOURNAL OF GLACIOLOGY
(2020)
Article
Oceanography
Gunnar Voet, Matthew H. Alford, Jennifer A. MacKinnon, Jonathan D. Nash
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2020)
Article
Oceanography
Olavo B. Marques, Matthew H. Alford, Robert Pinkel, Jennifer A. MacKinnon, Jody M. Klymak, Jonathan D. Nash, Amy F. Waterhouse, Samuel M. Kelly, Harper L. Simmons, Dmitry Braznikov
Summary: Internal tides generated south of New Zealand can propagate over a thousand kilometers before impinging on the continental slope of Tasmania. In situ observations and model results highlight additional features of the internal tide, such as bottom-enhanced tidal energy over small-scale bathymetric corrugations. Despite long-range propagation, the variability in energy density on the slope is mainly accounted for by the spring-neap cycle, indicating a complex interference between remote and local tides.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2021)
Editorial Material
Oceanography
Jerome A. Smith, Paola Cessi, Ilker Fer, Gregory Foltz, Baylor Fox-Kemper, Karen Heywood, Nicole Jones, Jody Klymak, Joseph LaCasce
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2020)
Article
Oceanography
Jody M. Klymak, Dhruv Balwada, Alberto Naveira Garabato, Ryan Abernathey
Summary: The study emphasizes the importance of internal drag from topography and proposes a simple parameterization scheme. Simulations show that the parameterization accurately predicts drag under different forcing parameters and replicates the effect of rough bathymetry on eddies in wind-driven channel flows.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2021)
Article
Oceanography
Lina M. Rotermund, William J. Williams, Jody M. Klymak, Yongsheng Wu, Randall K. Scharien, Christian Haas
Summary: Tides in the Kitikmeot Sea are heavily influenced by seasonal sea-ice formation and blocking in a strait, leading to significant tidal damping during wintertime sea-ice cover. The dynamics of the M-2 and K-1 tides show different patterns, with both tidal constituents dominated by Atlantic tides entering through Victoria Strait. The smaller K-1 tide is less diverted into subsidiary channels compared to the M-2 tide, propagating further into the region and resulting in larger tidal height in Coronation Gulf.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Oceanography
Saurav Sahu, Susan E. Allen, Gonzalo S. Saldias, Jody M. Klymak, Li Zhai
Summary: A shortage of dissolved oxygen in seawater can impact marine life and ecosystems, with low oxygen conditions driven by local productivity and remote changes in source waters. Research reveals that a low-oxygen dense pool observed over the mid-shelf off southwest Vancouver Island primarily originates from the California Undercurrent and offshore waters from the Washington shelf.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Oceanography
Amy F. Waterhouse, Tyler Hennon, Eric Kunze, Jennifer A. MacKinnon, Matthew H. Alford, Robert Pinkel, Harper Simmons, Caitlin B. Whalen, Elizabeth C. Fine, Jody Klymak, Julia M. Hummon
Summary: Internal waves are mainly generated by wind, tide-topography interactions, and balanced flow-topography interactions. Observations of vertical shear and calculations of total shear variance and vertical asymmetry ratio indicate that downgoing shear variance dominates in the upper 600 m of the water column globally, while the distribution is almost equal below 600 m depth.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2022)
Article
Oceanography
Gunnar Voet, Matthew H. Alford, Jesse M. Cusack, Larry J. Pratt, James B. Girton, Glenn S. Carter, Jody M. Klymak, Shuwen Tan, Andreas M. Thurnherr
Summary: The energy and momentum balance of an abyssal overflow across a major sill in the Samoan Passage is estimated using towed sections and numerical simulation. The flow driven by the density anomaly across the sill gains energy from pressure work and potential energy. Half of this energy is transferred into kinetic energy while the other half is lost to dissipation and pressure work. Internal waves radiate upward but dissipate most of their energy within the overflow layer. Form drag and topographic drag contribute to energy dissipation and momentum flux divergence.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2023)
Article
Geosciences, Multidisciplinary
J. M. Jackson, K. Holmes, J. M. Klymak, L. Bianucci, W. Evans, W. C. Floyd, C. G. Hannah, A. Hare, D. Wan
Summary: Using observational data and a 2-D model, this study demonstrates the impact of an Arctic outflow event in February 2019 on water temperature and oxygen levels in Bute Inlet, British Columbia. The findings suggest that this local mechanism might counteract the effects of climate change and create a refuge for marine life. Moreover, the frequency of outflow events has shown a recent increase.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Oceanography
Jody M. Klymak, Susan E. Allen, Stephanie Waterman
Summary: Observations on the southern Vancouver Island shelf reveal a significant exchange of water between the shelf and offshore areas, particularly near a semi-permanent recirculation feature known as the Juan de Fuca Eddy. This eddy occurs where the shelf widens abruptly due to a bank, and consists of a mixture of offshore and coastal water. The water in this eddy is well-mixed but maintains some stratification, either due to rapid mixing or a long residence time. Despite its uniformity, there is a narrow temperature-salinity front offshore that shows no sign of instability. Cross-front transport and hydraulic jumps are observed during a survey over a bank. Upstream of the eddy, there is an equatorward along-shelf current that separates from the shelf and is replaced by offshore water in the lee of the bank, as evidenced by satellite images of cool coastal water being ejected offshore.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Review
Environmental Sciences
Caitlin B. Whalen, Casimir de Lavergne, Alberto C. Naveira Garabato, Jody M. Klymak, Jennifer A. MacKinnon, Katy L. Sheen
NATURE REVIEWS EARTH & ENVIRONMENT
(2020)
Article
Physics, Fluids & Plasmas
John Lodise, Tamay Ozgokmen, Rafael C. Goncalves, Mohamed Iskandarani, Bjorn Lund, Jochen Horstmann, Pierre-Marie Poulain, Jody Klymak, Edward H. Ryan, Cedric Guigand