Global priorities for ocean sustainability from Early Career Ocean Professionals

ICES Journal of Marine Science, Journal Year: 2025, Volume and Issue: 82(1)

Published: Jan. 1, 2025

Abstract Intergenerational diversity is central to achieving long-term ocean sustainability. As such, one of the main goals and challenges in UN Decade Ocean Science for Sustainable Development (2021–2030) fostering engagement leadership across career stages from diverse sectors. To understand knowledge professional development needs next generation, we surveyed perspectives 1344 Early Career Professionals (ECOPs) 108 countries territories. We assess survey results, reflect on what has been done address these halfway through Decade, suggest areas further progress. found that climate change its social ecological impacts are unifying topical priority ECOPs globally. called support access development. Despite progress many initiatives, enhanced opportunities collaboration disciplines sectors, mentorship development, resource-sharing regions, inclusion decision-making policy processes, socially impactful applied research require attention. In addition, responses indicated funding, infrastructure, science tools was not equitably distributed globally, with need prioritize Global South island nations states. The results this global serve as a foundational step upon continue co-design deliver collective vision sustainability involving generation leaders throughout second half beyond.

Language: Английский

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Early Career Recommendations for the Equitable Growth of a Marine Carbon Dioxide Removal Sector

Perspectives of Earth and Space Scientists, Journal Year: 2025, Volume and Issue: 6(1)

Published: Jan. 4, 2025

Abstract In addition to steep carbon emission reductions, all modeled pathways reach global climate goals require removal. Marine dioxide removal has the potential play a large role in drawing down legacy anthropogenic emissions due scalability and durability of proposed methods. While this field is rapidly expanding, number issues remain, including efforts grow industry, align projects with equity justice goals, ensure development trusted, unique, durable credits. We, group early career ocean professionals (ECOPs), provide an overview scale field, aforementioned issues, then make recommendations expand capacity marine sector. We argue that substantial investment needed reduce costs spur innovation monitoring, reporting, verification, but also training researchers. Careful co‐design by experienced emerging collaborators, local communities, can help mitigate perpetuating existing inequalities. Given anticipated growth workforce, ECOPs contribute their interdisciplinary expertise, if they are supported within traditional structures. Those entering leverage skill sets intersect engineering, policy, community engagement, business. maintain will be key leaders appropriately engaged, compensated, empowered.

Language: Английский

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High‐Resolution Neural Network Demonstrates Strong CO₂ Source‐Sink Juxtaposition in the Coastal Zone

Journal of Geophysical Research Oceans, Journal Year: 2024, Volume and Issue: 129(7)

Published: July 1, 2024

Abstract The role of coastal oceans in regulating atmospheric carbon dioxide remains poorly quantified and understood. Here, we use a two‐step neural network approach to generate estimates from sparse observational data the Northeast Pacific Ocean at an unprecedented spatial resolution 1/12° with coverage nearshore (0–25 km offshore). We compiled partial pressure ( p CO 2 ) observations as well range predictor variables including satellite‐based physical oceanographic reanalysis products. With representing processes affecting , created non‐linear relationships interpolate 1998 2019. Compared situ shipboard mooring observations, our product captures broad patterns seasonal cycle variability well. A sensitivity analysis identifies that parameters responsible for network's ability capture regional are associated mechanistic processes, mixed layer deepening, mesoscale eddies, gyre upwelling. Using wind speed calculated air‐sea fluxes. report anticorrelation between annual flux its amplitude relationship driven by circulation, opposing upwelling/relaxation versus downwelling, effects winter mixing primary productivity. show inclusion net outgassing fluxes lowers overall flux. Overall, results suggest region is sink (−0.7 mol m −2 yr −1 trends indicating increasing oceanic uptake due strong connectivity subsurface waters.

Language: Английский

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Estimating marine carbon uptake in the northeast Pacific using a neural network approach

Biogeosciences, Journal Year: 2023, Volume and Issue: 20(18), P. 3919 - 3941

Published: Sept. 27, 2023

Abstract. The global ocean takes up nearly a quarter of anthropogenic CO2 emissions annually, but the variability in this uptake at regional scales remains poorly understood. Here we use neural network approach to interpolate sparse observations, creating monthly gridded seawater partial pressure (pCO2) data product from January 1998 December 2019, 1/12∘ × spatial resolution, northeast Pacific open ocean, net sink region. (ANN-NEP; NCEI Accession 0277836) was created pCO2 observations within 2021 version Surface Ocean Atlas (SOCAT) and range predictor variables acting as proxies for processes affecting create nonlinear relationships resolution 4 times greater than leading products with better overall performance. In moving higher show that internal division training is most important parameter reducing overfitting. Using our product, wind speed, atmospheric CO2, evaluate air–sea flux variability. On sub-decadal decadal timescales, find upwelling strength subpolar Alaskan Gyre, driven by large-scale forcing, acts primary control on (r2=0.93, p<0.01). northern part study region, divergence enhanced increased local stress curl, enhancing entrainment naturally CO2-rich subsurface waters, decade-long intervals strong winter outgassing. During recent marine heat waves 2013 on, (by much 45 %) due limited wintertime entrainment. Our estimates long-term surface increase rate below trend (1.4 ± 0.1 µatm yr−1) slowest center gyre where there interaction waters. This mismatch suggests may be increasing.

Language: Английский

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Feedback Mechanisms Between Atmospheric and Oceanic Factors on Atmospheric CO2 Concentration Over Tropical Coastal Waters

Earth Systems and Environment, Journal Year: 2024, Volume and Issue: 8(4), P. 1893 - 1916

Published: Aug. 28, 2024

Language: Английский

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Seasonality of pCO2 and air-sea CO2 fluxes in the Central Labrador Sea

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Oct. 25, 2024

The Labrador Sea in the subpolar North Atlantic is known for its large air-to-sea CO 2 fluxes, which can be around 40% higher than other regions of intense ocean uptake like Eastern Pacific and within Northwest Atlantic. This region also a hot-spot storage anthropogenic . Deep water formed here, so that dissolved gas by surface directly connects to deeper waters, helping determine how much atmospheric may sequestered (or released) deep ocean. Currently, Central acts as year-round sink , with intensification driven biological production spring lasting through summer fall. Observational estimates air-sea fluxes rely upon very limited, scattered data distinct lack wintertime observations. Here, we compile observations p from moorings underway measurements, including previously unreported data, between 2000 2020, create baseline seasonal climatology Sea. used reference compare against observational-based statistical regional collection global products. comparison reveals systematic differences representation cycle uncertainties magnitude fluxes. analysis paramount importance long-term, seasonally-resolved coverage this order accurately quantify size present sensitivity climate perturbations.

Language: Английский

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Arctic Oceanic Carbon Cycle: A Comprehensive Review of Mechanisms, Regulations, and Models

Water, Journal Year: 2024, Volume and Issue: 16(12), P. 1667 - 1667

Published: June 12, 2024

Understanding the oceanic carbon cycle, particularly in Arctic regions, is crucial for addressing climate change. However, significant research gaps persist, especially regarding effects on cycle these regions. This review systematically explores Arctic-related research, focusing mechanisms, regulatory frameworks, and modelling approaches sink, change impact, maritime shipping. The findings highlight Arctic’s limited observer presence high operational costs, hindering data availability studies carbon-cycle changes. underscores need to integrate real-time Ocean monitoring data. Carbon sink urgently requires direct methods measure anthropogenic uptake address uncertainties air–ocean fluxes due sea ice melting. Unlike terrestrial cycling oceans, which are essential absorbing emissions, receive insufficient attention, Numerous policies often fall short achieving effective mitigation, frequently depending voluntary or market-based approaches. Analyzing models has uncovered limitations, primarily their global perspective, hampering in-depth assessments of To pave way future enhancing recommended, as well fostering international cooperation enforcing policies, improving regional Ocean.

Language: Английский

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Strong pCO₂ Undersaturation in an Arctic Sea: A Decade of Spatial and Temporal Variability in Baffin Bay

Journal of Geophysical Research Oceans, Journal Year: 2024, Volume and Issue: 129(8)

Published: Aug. 1, 2024

Abstract Utilizing an 11‐year (2011–2021) data set, we report surface‐ocean p CO 2 in Baffin Bay during the open‐water season (June–October) to establish a baseline understanding of surface seawater carbon dynamics this region. We found was strongly undersaturated (70–130 μatm below saturation, depending on year), albeit with substantial regional variability. Though temperature be generally strong control , sea‐ice and other non‐thermal drivers controlled at certain times regions. The Island Current region (western Bay) experienced relatively high instances cover, usually early spring. Average comparatively lower West Greenland (eastern which is ice‐free substantially longer (by 3–4 months) where acted as dominant . With respect temporal variations, June had lowest season, coinciding active melt. Surface‐ocean then increased month‐to‐month through July August due warming decreased meltwater dilution, increasing again into September before stabilizing October. Generally, controls decrease mid‐summer (possibly primary production, melt, circulation), but increase fall (vertical mixing). Despite spatial variation over persistent undersaturation suggests that potentially sink, even comparison uptake regions across western Arctic.

Language: Английский

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Assessment and Spatio-Temporal Evolution of Marine Fisheries’ Carbon Sink Capacity in China’s Three Marine Economic Circles

Fishes, Journal Year: 2024, Volume and Issue: 9(8), P. 318 - 318

Published: Aug. 9, 2024

With the increasing pressure of resource decline and environmental pollution faced by green transformation marine fisheries, fishery carbon sinks are an increasingly close link to national strategic interests economic lifelines. It is, therefore, necessary explore paths for enhancement development sink capacity fisheries. Based on data fisheries from 2002 2021, this paper measures characteristics in provincial areas, applies kernel density estimation method depict dynamic evolution distribution absolute differences sinks, at same time, identifies factors influencing spatial imbalance as well spillover effects. The results show following: (1) From total amount, China’s three circles has fluctuated increased over past 20 years, with obvious among different circles, eastern, northern, southern risen sequentially. This trend corresponds disparities demonstrating a transition industrial driving (2) point view, shows year year, concentrating overflowing between circles. (3) partial derivative test further that main capital, labor, market openness have direct positive effects effect innovation is strongest, significance indirect weaker compared effect. As result, large room improvement, order promote high-quality it still accelerate circulation resources within circle, research technology, actively develop fishery, enhance specialization aquatic product processing.

Language: Английский

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Comment on egusphere-2023-870

Published: June 2, 2023

Abstract. The global ocean takes up nearly a quarter of anthropogenic CO₂ emissions annually, but the variability this uptake at regional scales remains poorly understood. Here we use neural network approach to interpolate sparse observations, creating monthly gridded seawater partial pressure (pCO₂) data product from January 1998 December 2019, 1/12° × spatial resolution, in Northeast Pacific open ocean. (ANN-NEP; NCEI Record ID: BGSH2HNRP) was created pCO₂ observations within 2021 version Surface Ocean Atlas (SOCAT), and range predictor variables acting as proxies for processes affecting create non-linear relationships resolution four times greater than leading products with better overall performance. In moving higher show that internal division training is most important parameter reducing overfitting. Using our product, wind speed, atmospheric CO₂, evaluate air-sea flux variability. On sub-decadal decadal timescales, find upwelling strength subpolar Alaskan Gyre, driven by large-scale forcing, acts primary control on (r² = 0.93, p < 0.01). northern part study region, divergence enhanced increased local stress curl, enhancing entrainment naturally CO₂-rich subsurface waters, decade-long intervals strong winter outgassing. During recent marine heatwaves 2013 on, (by much 45 %) due limited wintertime entrainment. Our estimates long-term surface increase rate below trend (1.4 ± 0.1 μatm yr⁻¹) slowest center gyre where there interaction waters. This mismatch suggests sink may be increasing.

Language: Английский

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