Ruth Musgrave

OSM26: On the Intermittency of Multi-Source Turbulence

Sam Aucoin, Ruth Musgrave, Alex E. Hay

Our current understanding of turbulence relies on statistical representations of the underlying chaotic motion. One such representation is the Probability Density Function (PDF) of Turbulent Kinetic Energy (TKE) dissipation rate. Measuring TKE dissipation rates is challenging, and these measurements in the ocean …

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Tracer release experiments in Halifax Harbour and implications for coastal ocean alkalinity enhancement

Ruby M Yee, Ruth Musgrave, Dariia Atamanchuk, Mathieu Dever et autres

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Sea Ice Effects on Stratification in Barrow Strait: A Potential Energy Anomaly Framework

Lina M. Rotermund, Emyr Martyn Roberts, Yueng‐Djern Lenn, Clark G. Richards et autres

Abstract Using a one-dimensional potential energy anomaly (PEA) framework, we examine the development and erosion of density stratification in Barrow Strait within the Canadian Arctic Archipelago. PEA is the amount of work per unit volume required to completely mix the water column, …

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Two-Hour Sea Level Oscillations in Halifax Harbour

Dan E. Kelley, Clark G. Richards, Ruby M Yee, Alex E. Hay et autres

Halifax Harbour, a major seaport in Nova Scotia that is approximately 100 km southeast of the Bay of Fundy, comprises a deep inner region called Bedford Basin, connected to the adjacent ocean by a shallow channel called The Narrows. A study of …

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Mapping of a Mid‐Depth Salinity Maximum Intrusion South of New England in June 2021 and Implications for Cross‐Shelf Exchange

Glen G. Gawarkiewicz, Lukas Lobert Taenzer, Adrienne M. Silver, Svenja Ryan et autres

Abstract The Northeast U.S. continental shelf is characterized by relatively cold and fresh shelf waters of Arctic origin, whereas the adjacent Slope Sea is home to warm and salty, Gulf Stream derived waters. These contrasting watermass properties form a strong Shelfbreak Front, …

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Rare Long‐Term Data Reveal the Seasonal Dietary Plasticity of Mandrills (Mandrillus sphinx) in Response to Fruiting Tree Phenology

Joshua T. Bauld, David Lehmann, Luc F. Bussière, Emma R. Bush et autres

Understanding primate dietary plasticity provides insights into trait evolution and resilience to environmental change. Here, we investigate the feeding ecology of mandrills (Mandrillus sphinx), a species that forms groups of close to 1000 individuals, which presumably impacts feeding ecology by creating exceptionally …

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Assessing the impact of vertical mixing and dilution in plume-discharge mCDR interventions via 1D semi-analytic model

Alexander Andriatis, Ian A. F. Stokes, Ruth Musgrave, Thomas Bevill Peacock et autres

The Generation of Superinertial Coastally Trapped Waves by Scattering at the Coast

Ruth Musgrave, D. Winters, Varvara Zemskova, James A. Lerczak

Abstract A series of idealized numerical simulations is used to examine the generation of mode-one superinertial coastally trapped waves (CTWs). In the first set of simulations, CTWs are resonantly generated when freely propagating mode-one internal tides are incident on the coast such …

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Internal Tides at the Coast: Energy Flux of Baroclinic Tides Propagating into the Deep Ocean in the Presence of Supercritical Shelf Topography

Varvara Zemskova, Ruth Musgrave, James A. Lerczak

Abstract The generation of internal tides at coastal margins is an important mechanism for the loss of energy from the barotropic tide. Although some previous studies attempted to quantify energy loss from the barotropic tides into the deep ocean, global estimates are …

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The impacts of ocean physics on the efficiency of ocean alkalinity enhancement in a one-dimensional model

Ruth Musgrave, Ruby M Yee, Steve Rackley, Gregory L. Wagner

We use a one-dimensional diffusion model to examine the relative effects of air-sea gas exchange and interior mixing on the efficiency of ocean alkalinity enhancements in drawing down atmospheric CO2 under a range of oceanic conditions. First, a series of highly idealized …

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The effects of near-surface turbulence on CO2 flux at the ocean-atmosphere boundary

Josiane Ostiguy, Ruth Musgrave, Graig Sutherland, Douglas C. Wallace et autres

Ocean alkalinity enhancement (OAE) seeks to store carbon in the ocean as bicarbonate or carbonate ions and thus accelerates CO2 uptake from the atmosphere. Near-surface ocean turbulence is an important driver of CO2 uptake by the ocean as it affects the rate …

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Ocean Alk-Align: an international research project to assess the potential of Ocean Alkalinity Enhancement for marine Carbon Dioxide Removal

Jessica L. Oberlander, Dariia Atamanchuk, Lennart T. Bach, Katja Fennel et autres

Of the various marine Carbon Dioxide Removal (CDR) technologies proposed to date, ocean alkalinity enhancement (OAE) has, arguably, the largest carbon removal potential. OAE has several advantages over other approaches: it does not compete for nutrient use, it is applicable to large …

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