Predictability of non-phase-locked baroclinic tides in the Caribbean Sea

Zaron, Edward D.

doi:10.5194/os-15-1287-2019

Cited by 9 publications

(5 citation statements)

References 50 publications

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“…However, dedicated analyses presented in (F. E. A. Ardhuin, 2019) suggest that tidal current may be well handled thanks to accurate barotropic models and favorable orbit aliasing. Baroclinic tidal currents, not always phase locked (Zaron, 2019) may also be a challenge, but they are probably dominated by shorter scales with a minimal interaction with inertial oscillations.…”

Section: Discussionmentioning

confidence: 99%

Reconstructing Ocean Surface Current Combining Altimetry and Future Spaceborne Doppler Data

et al. 2021

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The ocean surface current, a key variable for many scientific and operational applications, is only partially and indirectly observed from space. Altimetry provides the geostrophic component of the current (Fu et al., 1988), which is a dominant contribution to surface transport in most of the oceans, effectively resolving wavelengths larger than about 200 km wavelength (Ballarotta et al., 2019). The ageostrophic component, not synoptically observed yet, is locally sampled from drifting buoys (Elipot et al., 2016) or high-frequency radars near the coasts (Kim et al., 2008). If model estimates for ageostrophic current are available, in particular for the low-frequency part (Rio et al., 2014) the uncertainties are still high. Filling this gap with satellite measurements of the total surface current is the topic of active research, with several emerging concepts of spaceborne Doppler radar for either 1 km resolution local studies such as SEASTAR (Gommengin

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Section: Discussionmentioning

confidence: 99%

Reconstructing Ocean Surface Current Combining Altimetry and Future Spaceborne Doppler Data

et al. 2021

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“… Comparison of our LDM parameterization with that of Zeng et al [ 65 ]. Comparisons are only for LDM simulations with larvae sourced from South Abaco, The Bahamas.…”

Section: Discussionmentioning

confidence: 99%

“…At the boundary, tides are imposed from the TPXO global inverse tidal prediction model [ 64 ]. Within the model domain, a tide-generating force is applied by incorporating astronomical forcing, ocean loading, and ocean self-attraction consistent with the TPXO model [see 65 for more detail]. NCOM AmSeas simulation archives consist of 3-hourly ocean state variables aggregated in NetCDF files including ocean temperature, salinity, sea surface height, east and northward flow velocity, and atmospheric forcing fields.…”

Section: Methodsmentioning

confidence: 99%

Biophysical larval dispersal models of observed bonefish (Albula vulpes) spawning events in Abaco, The Bahamas: An assessment of population connectivity and ocean dynamics

Lombardo

Chérubin²,

Adams³

et al. 2022

PLoS ONE

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Biophysical models are a powerful tool for assessing population connectivity of marine organisms that broadcast spawn. Albula vulpes is a species of bonefish that is an economically and culturally important sportfish found throughout the Caribbean and that exhibits genetic connectivity among geographically distant populations. We created ontogenetically relevant biophysical models for bonefish larval dispersal based upon multiple observed spawning events in Abaco, The Bahamas in 2013, 2018, and 2019. Biological parameterizations were informed through active acoustic telemetry, CTD casts, captive larval rearing, and field collections of related albulids and anguillids. Ocean conditions were derived from the Regional Navy Coastal Ocean Model American Seas dataset. Each spawning event was simulated 100 times using the program Ichthyop. Ten-thousand particles were released at observed and putative spawning locations and were allowed to disperse for the full 71-day pelagic larval duration for A. vulpes. Settlement densities in defined settlement zones were assessed along with interactions with oceanographic features. The prevailing Northern dispersal paradigm exhibited strong connectivity with Grand Bahama, the Berry Islands, Andros, and self-recruitment to lower and upper Abaco. Ephemeral gyres and flow direction within Northwest and Northeast Providence Channels were shown to have important roles in larval retention to the Bahamian Archipelago. Larval development environments for larvae settling upon different islands showed few differences and dispersal was closely associated with the thermocline. Settlement patterns informed the suggestion for expansion of conservation parks in Grand Bahama, Abaco, and Andros, and the creation of a parks in Eleuthera and the Berry Islands to protect fisheries. Further observation of spawning events and the creation of biophysical models will help to maximize protection for bonefish spawning locations and nursery habitat, and may help to predict year-class strength for bonefish stocks throughout the Greater Caribbean.

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“…Location ② is within the Lombok Strait area, which is also known for exceptional internal wave activity Susanto et al (2005); Ningsih et al (2010); Matthews et al (2011). Location ③ is in a shallow region in the Mona Passage, which is a lesser-known but prominent region of IGW generation in the Caribbean Sea (Rosario-Llantıń, 2000;Zaron, 2019).…”

Section: Seasonal Variability and Mixed Layer Depthmentioning

confidence: 99%

A global atlas of potential thermal refugia for coral reefs generated by internal gravity waves

et al. 2022

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Coral reefs are highly threatened by ocean warming and the majority are likely to be lost in less than three decades. A first step in maximizing reef conservation through this period is to identify where coral reefs are more likely to survive rising ocean temperatures, such as locations that experience lower temperatures than surrounding regions, high temperature variability, and high food supply. Such conditions are often the result of naturally occurring internal gravity waves (IGWs), oscillatory subsurface disturbances that can entrain cooler and/or nutrient-rich subsurface waters and cause high frequency temperature fluctuations. These features usually remain undetected because they occur subsurface and at spatial scales of O(1 km) and smaller. To shed light on where IGWs are likely to impact temperature conditions within coral reef regions, we present an analysis of data from the LLC4320, a massive high resolution (1/48˚; < 2.5 km) numerical global ocean simulation. The results highlight strong regional differences in the incidence of IGW-induced temperature variability. The analysis also reveals that thermal refugia are limited to depths where high temperature variability coincides with the actual reef depth and may not persist year-round. Assuming 10-m depth as the nominal reef depth, reef regions likely to benefit from IGW-induced cooling occur in SE Asia and the Coral Triangle, the Galápagos, along the Pacific shelf of Central America, and isolated locations worldwide. Such refugia are rare within the Atlantic reef sector. An interactive global atlas showing the results of this study has been made freely available online at https://ncar.github.io/coral-viz/.

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Predictability of non-phase-locked baroclinic tides in the Caribbean Sea

Cited by 9 publications

References 50 publications

Reconstructing Ocean Surface Current Combining Altimetry and Future Spaceborne Doppler Data

Reconstructing Ocean Surface Current Combining Altimetry and Future Spaceborne Doppler Data

Biophysical larval dispersal models of observed bonefish (Albula vulpes) spawning events in Abaco, The Bahamas: An assessment of population connectivity and ocean dynamics

A global atlas of potential thermal refugia for coral reefs generated by internal gravity waves

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