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Capacity sharing in the ocean sciences is essential for addressing pressing environmental challenges and fostering sustainable stewardship of marine ecosystems. This article focuses on three important capacity-sharing programs operating in Africa: Early Career Ocean Professionals (ECOP) Africa, Citizen Observation of Local Litter in Coastal Ecosystems (COLLECT) (a project of the Partnership for Observation of the Global Ocean), and Mundus Maris Africa. ECOP Africa, a pioneering platform for early career ocean professionals, emphasizes mentorship, training, and knowledge exchange to empower young marine scientists across the continent. Through dynamic programs and events, ECOP Africa is catalyzing interdisciplinary collaboration and inspiring the next generation of ocean leaders. Similarly, COLLECT leverages citizen science to tackle plastic pollution in coastal environments. By training secondary school students as “citizen scientists,” COLLECT has not only generated critical data on the distribution and abundance of coastal debris but also fostered environmental awareness and local engagement. These initiatives demonstrate the power of inclusive, community-driven approaches to capacity sharing in the ocean sciences. They highlight the transformative potential of combining open science, education, and international collaboration to address global challenges such as plastic pollution and climate change while empowering local communities to take active roles in preserving their marine environments. 

The challenges facing the ocean and its resources have become increasingly complex and transboundary, requiring coordinated efforts for effective management and sustainable use. However, this coordination is currently hindered by the uneven distribution of capacity and equipment, particularly in developing regions. This article discusses project-based learning (PBL) as a pathway to transferring and sharing capacity in global ocean sciences. It highlights a successful PBL program, as well as challenges encountered and lessons learned. Addressing these obstacles is crucial for ensuring equity in solving issues that impact the ocean. 

One of the biggest barriers to conducting ocean science around the globe is limited access to computational tools and resources, including software, computing infrastructure, and data. Open tools, such as open-source software, open data, and online computing resources, offer promising solutions toward more equitable access to scientific resources. Here, we discuss the enabling power of these tools in under-resourced and non-English speaking regions, based on experience gained in the organization of three independent programs in West African, Latin American, and Indian Ocean nations. These programs have embraced the “hackweek” learning model that bridges the gap between data science and domain applications. Hackweeks function as knowledge exchange forums and foster meaningful international and regional connections among scientists. Lessons learned across the three case studies include the importance of using open computational and data resources, tailoring programs to regional and cultural differences, and the benefits and challenges of using cloud-based infrastructure. Sharing capacity in marine open data science through the regional hackweek approach can expand the participation of more diverse scientific communities and help incorporate different perspectives and broader solutions to threats to marine ecosystems and communities. 

The Coastal Ocean Environment Summer School In Nigeria and Ghana (COESSING; https://coessing.org) has been run for one week every year since 2015. The school, an endorsed project of the United Nations Decade of Ocean Science for Sustainable Development (2021–2030), has provided a platform for approximately 1,000 scientists from Africa, the United States, and Europe to exchange scientific knowledge, to network, to learn, and to collaborate. Our interdisciplinary, multicultural, and multi-institutional approach offers a model for knowledge exchange across the globe and across different educational levels. 

AbstractOceanography is by nature a global science, and thus requires a global trained workforce. Yet in many coastal nations, the number of trained professionals working in ocean science fields is lacking. Global Ocean Corps and Conveyor (GOCC), an endorsed capacity development programme of the UN Decade of Ocean Science for Sustainable Development, aims to increase the geographical and cultural diversity of the ocean science workforce through facilitating and building sustained long-term education and research collaborations between scientists around the globe. Based upon our collective experience with schools and workshops held in Ghana, Malaysia, University of Rhode Island Coastal Resources Center, and elsewhere, we are confident that a well-funded Ocean Corps would inspire large numbers of scientists, especially early-career scientists, into its ranks, thus molding many of them into champions for international capacity development for the remainder of their careers, and fostering truly global ocean science collaborations worldwide. 

The effects of horizontal resolution and wave drag damping on the semidiurnal M2 tidal energetics are studied for two realistically-forced global HYbrid Coordinate Ocean Model (HYCOM) simulations with 41 layers and horizontal resolutions of 8 km (H12) and 4 km (H25). In both simulations, the surface tidal error is minimized by tuning the strength of the linear wave drag, which is a parameterization of the surface-tide energy conversion to the unresolved baroclinic wave modes. In both simulations the M2 surface tide error with TPXO8-atlas, an altimetry constrained model, is 2.6 cm. Compared to H12, the surface tide energy conversion to the resolved vertical modes is increased by 50% in H25. This coincides with an equivalent reduction in the tuned loss of energy from the surface tide to the wave drag. For the configurations studied here, the horizontal and not the vertical resolution is the factor limiting the number of vertical modes that are resolved in most of the global ocean: modes 1–2 in H12 and modes 1–5 in H25. The wave drag also dampens the resolved internal tides. The 40% reduction in wave-drag strength does not result in a proportional increase in the mode-1 energy density in H25. In the higher-resolution simulations, topographic mode-scattering and wave–wave interactions are better resolved. This allows for an energy flux out of mode 1 to the higher modes, mitigating the need for an internal tide damping term. The HYCOM simulations are validated with analytical conversion models and altimetry-inferred sea-surface height, fluxes, and surface tide dissipation. H25 agrees best with these data sets to within 10%. To facilitate the comparison of stationary tide signals extracted from time series with different durations, we successfully apply a spatially-varying correction factor.