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10 results for “Ocean Alkalinity Enhancement”
Data from: Brucite-inspired ocean alkalinity enhancement alters the biogeochemistry and composition of a phytoplankton community: A Santa Barbara channel case report
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Carbonate chemistry changes following iron and steel slags dissolution in seawater for Ocean Alkalinity Enhancement, and measured dissolution of potentially toxic elements.
<p>Ocean alkalinity enhancement is a carbon capture strategy that has gained interest over the past years. This strategy relies on the dissolution of alkaline minerals to increase the alkalinity of the ocean, among which iron and steel slags are potential candidates. However, their dissolution in seawater as well as the leaching of potentially toxic elements is unknown. These data were collected as part of a research article that assess the alkalinity generation potential of iron and steel slags in MilliQ and seawater, as well as the dissolution of potentially toxic elements. The dataset is composed of various sheets, each of them reporting data from a specific experiment. For each experiment, the analysis details (instrument used, parameters analysed etc) are provided on each individual sheet, and an overview one regroups the main aims of this research as well as the technical terms used throughout.</p>
Data for "Simulated impact of ocean alkalinity enhancement on atmospheric CO 2 removal in the Bering Sea"
<p>This is accompanying data for a submission to AGU Earth's Future by lead author Hongjie Wang and corresponding author Brendan Carter. This submission primarily contains processed model simulation output. The original model output was generated by Kelly Kearney. Unfortunately, the original model output is requires too much memory to submit in its entirety, so this submission is intended to grant interested readers access to the worked-up fields used to produce the figures and values in the manuscript. Individuals interested in higher-resolution model output are encouraged to contact Kelly Kearney to discuss possible transfer solutions.</p> <p> </p> <p>A data hosting solution for the full simulation is being explored by the Bering10k team, and this description will be updated if a publicly accessible alternative to these processed fields becomes available.</p>
Earth System Model-based Life Cycle Assessment of Ocean Alkalinity Enhancement
<ol> <li>“Fig2data.xlsx”, “Fig5data.xlsx” and “Fig4data.xlsx” are the original data to create Fig.2, Fig.3 and Fig.5. The data are calculated from UVic results.</li> <li>“Fig4.txt” is the code to create Fig.4 by Pyferret from UVic results.</li> <li>“X.f” are the update codes in our UVic model.</li> </ol>
Contrasting carbon dioxide removal potential and nutrient feedbacks of simulated ocean alkalinity enhancement and macroalgae afforestation
<p>PISCES model outputs supporting the associated publication.</p> <p>Files are for the following simulations: historical control (CTL), OAE without nutrient addition (OAE), OAE with nutrient addition (OAE_Fe_Si), macroalgae afforestation without nutrient feedbacks (MACRO) and macroalgae afforestation with nutrient feedbacks (MACRO_N_P). The following outputs are provided at monthly resolution: air-sea carbon flux (Cflx), export flux at 100m (EPC100) and depth integrated net primary production of phytoplankton (INTPP). In addition masks of the regions of OAE (mask_OAE) and macroalgae afforestation (mask_MACRO) are provided. All files have been regridded from the original eORCA025 grid to a regular 360x180 degree grid.</p>
Coccolithophores and diatoms resilient to ocean alkalinity enhancement: a glimpse of hope?
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The potential of wastewater treatment on carbon storage through ocean alkalinity enhancement
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Cumulative additionality and relative efficiency for ocean alkalinity enhancement
<p>This dataset is for the work presented in the following paper: Yamamoto, K., DeVries, T., & Siegel, D. A. (2024). Metrics for quantifying the efficiency of atmospheric CO2 reduction by marine carbon dioxide removal (mCDR). <em>Environmental Research Letters</em>, <em>19</em>(10), 104053. <a href="https://doi.org/10.1088/1748-9326/ad7477">https://doi.org/10.1088/1748-9326/ad7477</a></p> <p>This includes simulation scripts, simulation outputs, and data analysis scripts for estimating the cumulative additionality of ocean alkalinity enhancemement and direct air capture and relative efficiency of ocean alkalinity enhancement using a coupled ocean-atmosphere model. All scripts are for MATLAB. Model outputs are available in matfiles and netCDF. </p> <p>If using this dataset, please cite the original publication.</p> <div> </div>
Ocean Alkalinity Enhancement in deep water formation regions under low and high emission pathways
<p>The dataset includes the minimum data required to reproduce the findings of Nagwekar et al. (2024). The output of the global ocean biogeochemical model FESOM2.1-REcoM3 implementing Ocean Alkalinity Enhancement (OAE) is provided. In particular it contains: a) model grid, b)Water Mass Transformation and Formation rates in the subduction regions of the Southern Ocean (SO), Northwest Atlantic (NWA) and Norwegian-Barents Sea (NBS) region, c) annual mean time-series (2015-2100) for the increase in oceanic CO2 uptake, long-term and short-term OAE efficiencies, surface alkalinity, depth and area integrated Dissolved Inorganic carbon (DIC), diatom productivity, small phytoplankton productivity, and total Net Primary Production (NPP), d) seasonal time-series averaged over 2090-2099 for the increase in oceanic CO2 uptake, mixed layer depth, amount of olivine added, surface alkalinity, DIC accumulation, and total NPP for the subduction regions in the SO, NWA, NBS, and e) data for spatial maps averaged over 2090-2099 for oceanic CO2 uptake, alkalinity, calcification and NPP. The data is available for the SSP1-2.6 and SSP3-7.0 emission sceanrio. </p>
Supporting data for manuscript: "Global-scale evaluation of coastal ocean alkalinity enhancement in a fully-coupled Earth system model"
<p>Supporting data for manuscript: "Global-scale evaluation of coastal<br> ocean alkalinity enhancement in a fully-coupled Earth system model"</p> <p>Authors: Julien Palmieri and Andrew Yool</p> <p>Institute: National Oceanography Centre, European Way, Southampton<br> SO14 3ZH, UK</p> <p>This repository consists of four main sets of files:</p> <p>1. Matlab scripts used for analysis, figure plotting and table<br> preparation</p> <p> Filenames of the format: Figure_??.m</p> <p>2. Raw netCDF output files from UKESM1 for six model experiments</p> <p> Filenames of the format: medusa_c*.nc</p> <p>3. BGCVal processed timeseries shelve files</p> <p> Filenames of the format: u-c*.shelve.txt</p> <p>4. CMM2 processed timeseries netCDF files</p> <p> Filenames of the format: c*_global.nc</p> <p>File sets 2-4 are read and processed by script files in file set 1<br> </p>
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