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57 results for “Carbon sink”
Data supporting "Seasonal dynamics and punctuated carbon sink reduction suggest photosynthetic capacity of boreal silver birch is reduced by the accumulation of hexose"
<p>Data supporting our New Phytologist publication: "Seasonal dynamics and punctuated carbon sink reduction suggest photosynthetic capacity of boreal silver birch is reduced by the accumulation of hexose". The file present the data produced during long-term (three consecutive years 2019-2021) field observations and short-term girdling manipulation of top-crown shoots in three mature <em>Betula pendula</em> trees as details of our manuscript. Values of leaf gas-exchange, environmental variables, leaf water and nitrogen status, and concentrations of sucrose, hexoses (glucose and fructose), starch, total sugar, and total non-structural carbohydrate in leaves are listed. </p>
Canada's extreme wildfires dominate the decline in global land carbon sinks in 2023
<p>Terrestrial land carbon sinks are strongly influenced by climate extremes, and 2023 is the warmest year on record, accompanied by an El Niño event, extreme wildfires, and extreme precipitation and drought, but their impact on global land sinks in 2023 remains unclear. Here, we used the Global Carbon Assimilation System, version 2, to estimate recent global land sinks by assimilating the OCO-2 ACOS v11.1 XCO2 retrievals. We estimate the global land sink to be -1.63 ± 0.52 PgC/yr in 2023. Compared to 2017-2022, it decreases by 0.59 PgC/yr, in which net ecosystem exchange decreases by only 0.14 PgC/yr, but wildfire emissions increase significantly by 0.45 PgC/yr, mainly in Canada. Our findings suggest that extreme wildfires are an important threat to land sinks under global warming.</p>
Forest Regrowth Carbon Gains Data for publication: The key role of forest disturbance in reconciling estimates of the northern carbon sink
<p>'Space for time' regrowth carbon gains based on forest age map (Besnard et al. 2021; https://doi.org/10.5194/essd-13-4881-2021) and ESA-CCI Biomass v4 (Santoro et al. 2023; <a href="https://dx.doi.org/10.5285/af60720c1e404a9e9d2c145d2b2ead4e">https://dx.doi.org/10.5285/af60720c1e404a9e9d2c145d2b2ead4e</a>).</p> <p>Gridded cumultiave carbon gains 2001-2021 at 1km spatial resolution are provided for the four study regions.</p> <p>Regional total carbon gains from forest regrowth are provided for each year 2001-2021.</p> <p>See O'Sullivan et al. 2024 () for full details.</p> <p> </p>
Weakening of the terrestrial carbon sink through enhanced fluvial carbon export
<p>This dataset provides the original data simulated by ORCHIDEE-Clateral model (Zhang et al., 2022, Earth System Dynamics) and an evaluation of the simulation results.</p> <p>Global-hist-yearly-COMPARISON_STAT_TimeSeries_GloRegion.xlsx provides the time series of lateral carbon transfers, as well as the terrestrial carbon fluxes simulated by the ORCHIDEE-Clateral model.</p> <p>Evaluation_SiteLevel_runoff_sediment_TOC_POC_DOC.xlsx provides the observed and simulated riverine water, sediment and carbon fluxes at hydrological gauging sites across the world.</p> <p>Evaluation_LargeScale_NPPSOC_Sediment_POCDOCCO2.xlsx provides the estimates of global and continental lateral carbon fluxes from this study and previous studies.</p> <p>ClateralCbalance.mat provides the raster maps of simulated lateral carbon transfers, as well as the terrestrial carbon fluxes by the ORCHIDEE-Clateral model. For each variable, the first dimension is longitude (-180 W - 180E), the second dimension is latitude (90N - -90S), and the thrid dimension is the year (1898-2020).</p>
Global warming may turn ice-free areas of Maritime and Peninsular Antarctica into potential soil organic carbon sinks
<h2>Dear researchers and interested parties,</h2> <p>We are excited to announce the publication of our recent research on Zenodo, presenting <strong>high-resolution</strong> (8 m) spatial models of <strong>soil organic carbon (SOC) stocks in ice-free areas of Maritime and Peninsular Antarctica</strong>. This research evaluates the potential impacts of climate change on SOC stocks under three Shared Socioeconomic Pathways (SSPs), providing a comprehensive understanding of the role these regions may play as carbon sinks in the face of intensified global warming.</p> <h2>Available resources:</h2> <h3>SOC stock predictions:</h3> <p>We provide detailed maps of SOC estimates and uncertainties for different soil depths across various IPCC Shared Socioeconomic Pathways, including mean values (Mg ha⁻¹) and coefficients of variation (%). All maps are available in "tif" format, using the South Pole Stereographic projection system (<a href="https://epsg.io/102021" target="_blank" rel="noopener">ESRI:102021</a>).</p> <p>Open-Source Code and Data: The entire analytical workflow, developed in R, <strong>is accessible through our <a href="https://github.com/moquedace/soc_stock_antarctica" target="_blank" rel="noopener">GitHub repository</a></strong>, ensuring reproducibility and transparency. Additional methodological details are provided in our publication:</p> <p>Mello, D., Francelino, M. R., Moquedace, C. M., Baldi, C. G. O., Silva, L., Siqueira, R. G., Veloso, G. V., Fernandes-Filho, E. I., Thomazini, A., Demattê, J., Ferreira, T., Gomes, L. C., Senra, E., Schaefer, C. E. G. R. Global warming may turn ice-free areas of Maritime and Peninsular Antarctica into potential soil organic carbon sinks. <em>Commun Earth Environ</em>, v. 6, n. 1, p. 143, 2025. DOI: <a href="https://doi.org/10.1038/s43247-024-01937-z" target="_blank" rel="noopener">10.1038/s43247-024-01937-z</a></p> <h2>Availability objectives:</h2> <h3>Advancing scientific collaboration:</h3> <p>We invite scientists, researchers, and organizations to explore our findings to support additional studies on soil carbon dynamics and climate change.</p> <h3>Supporting environmental understanding:</h3> <p>By providing open access to these models, we aim to contribute to global knowledge on Antarctic soil carbon dynamics and assist in formulating sustainable climate mitigation strategies.</p> <h3>Fostering innovation:</h3> <p>Sharing this data aims to stimulate advances in spatial modeling and SOC prediction methodologies, especially in high-latitude environments.</p> <h2>We appreciate your interest and collaboration. We look forward to advancing knowledge and promoting sustainable solutions to essential environmental challenges together.</h2>
Alarming decline in the carbon sink of European forests driven by disturbances
<p>This repository includes the dataset and figures associated with the following paper:</p> <p><strong>Ritter, F., Ciais, P., Senf, C., Santoro, M., Xu, Y., Pelissier-Tanon, A., Schwartz, M., Fayad, I., Carvalhais, N., Brandt, M., Fensholt, R., Besnard, S. & Avitabile, V.</strong>. Alarming decline in the carbon sink of European forests driven by disturbances</p>
Sensitivity of the global ocean carbon sink to the ocean skin in a climate model : IPSL-CM6 dataset
<p>Daily outputs of 2000-2014 historical run with IPSL-CM6 (Boucher et al. 2020) with Bellenger et al. (2017) parameterization of the ocean skin (Bellenger et al. 2023)</p> <p>CM62-OSCO2-hist-2000-2014-1D.nc contains air-sea CO2 fluxes:</p> <p>F_CTL : Prognostic classical bulk flux from the control (CTL) run</p> <p>F_MBL_CTL : Diagnostic flux using the interactive ocean skin and the equilibrium model (Woolf et al. 2016) from the CTL run</p> <p>F_TBL_CTL : Diagnostic flux using the interactive ocean skin and the rapid model (Woolf et al. 2016) from the CTL run</p> <p>F_Wat_CTL : Diagnostic flux using a uniform ocean skin (Watson et al. 2020) from the CTL run</p> <p>F_MBL_CPL: Prognostic flux using the interactive ocean skin and the equilibrium model from the coupled (CPL) run</p> <p>CM62-OSCO2-hist-2000-2014-1D_oceanskin.nc contains ocean skin related outputs:</p> <p>tos / sos : Temperature / salinity of the ocean model's first level</p> <p>t_int / s_int : Temperature /salinity at the interface</p> <p>t_mbl / s_mbl : Temperature /salinity at the base of the Mass Boundary Layer (MBL)</p> <p>t_tbl : Temperature at the base of the Thermal Boundary Layer (TBL)</p> <p><em>Bellenger H., K. Drushka, W. E. Asher, G. Reverdin, M. Katsumata, and M. Watanabe: Extension of the prognostic model of sea surface temperature to rain-induced cool and fresh lenses, J. Geophys. Res. Oceans, 122, 484–507</em></p> <p>Bellenger, H., Bopp, L., Ethé, C., Ho, D., Duvel, J. P., Flavoni, S., Guez L., T. Kataoka, X. Perrot, L. Parc, and M. Watanabe (2023). Sensitivity of the global ocean carbon sink to the ocean skin in a climate model. Journal of Geophysical Research : Oceans, 128, e2022JC019479. <a href="https://doi.org/10.1029/2022JC019479">https://doi.org/10.1029/2022JC019479</a></p> <p><em>Boucher, O., and coauthors, 2020: Presentation and evaluation of the IPSL-CM6A-LR climate model, Journal of Advances in Modeling Earth System, 12, e2019MS002010, doi:</em><a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019MS002010"><em>10.1029/2019MS002010</em></a></p> <p><em>Watson A. J., U. Schuster, J. D. Shutler, T. Holding, I. G. C. Ashton, P. Landschützer, D. K. Woolf, and L. Goddijn-Murphy, 2020: Revised estimates of ocean-atmosphere CO<sub>2</sub> flux are consistent with carbon inventory, Nature Comm., 11:4422, https://doi.org/10.1038/s41467-020-18203-3</em></p> <p><em>Woolf, D. K., P. E. Land, J. D. Shutler, L. M. Goddijn-Murphy, and C. J. Donlon, 2016: On the calculation of air-sea fluxes of CO2 in the presence of temperature and salinity gradients, J. Geophys. Res. Oceans, 121, 1229-1248.</em></p> <p> </p> <p> </p>
Impact of soil temperature-difference on desert carbon-sink
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Data from: Afforestation-related fertilisation quickly turns barren cutaway peatland into a carbon dioxide sink
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Drought decreases carbon flux but not transport speed of newly fixed carbon from leaves to sinks in a giant bamboo forest
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Data from: Oyster reefs as carbon sources and sinks
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Canada’s extreme wildfires dominate the decline in global land carbon sinks in 2023
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A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes
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Visualization and quantification of carbon 'rusty sink' by rice root iron plaque: mechanisms, functions, and global implications
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Does increasing canopy liana density decrease the tropical forest carbon sink?
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Data from: Montane meadows: A soil carbon sink or source?
<p>As the largest biogeochemically active terrestrial reserve of carbon (C), soils have the potential to either mitigate or amplify rates of climate change. Ecosystems with large C stocks and high rates of soil C sequestration, in particular, may have outsized impacts on regional and global C cycles. Montane meadows have large soil C stocks relative to surrounding ecosystems. However, anthropogenic disturbances in many meadows may have altered the balance of C inputs and outputs, potentially converting these soils from net C sinks to net sources of C to the atmosphere. Here, we quantified ecosystem-level C inputs and outputs to estimate the annual net soil C flux from 13 montane meadows spanning a range of conditions throughout the California Sierra Nevada. Our results suggest that meadow soils can be either large net C sinks (577.6 ± 250.5 g C m−2 y−1) or sources of C to the atmosphere (− 391.6 ± 154.2 g C m−2 y−1). Variation in the direction and magnitude of net soil C flux appears to be driven by belowground C inputs. Vegetation species and functional group composition were not associated with the direction of net C flux, but climate and watershed characteristics were. Our results demonstrate that, per unit area, montane meadows hold a greater potential for C sequestration than the surrounding forest. However, legacies of disturbance have converted some meadows to strong net C sources. Accurate quantification of ecosystem-level C fluxes is critical for the development of regional C budgets and achieving global emissions goals.</p>
Organic and inorganic carbon sinks reduce long-term deep carbon emissions in the continental collision margin of the southern Tibetan Plateau: Implications for Cenozoic climate cooling
<p>Hydrogeochemical data including aqueous chemistry, hydrogen and oxygen isotopes, gas components, gas helium, carbon isotopes from southern Tibet. Supporting the manuscript titled "Organic and inorganic carbon sinks reduce long-term deep carbon emissions in the continental collision margin of the southern Tibetan Plateau: Implications for Cenozoic climate cooling".</p>
Optimal forest management schemes and the corresponding forest biomass carbon sink projections in China
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Combined CH4, N2O and CO2 fluxes budgets reveal a net carbon sink across a glacier-ocean continuum
<p>This dataset is supplument to a manuscript "Meltwater impacts CH4 and N2O fluxes across a glacier-ocean interface". </p> <p>Dataset includes </p> <ul> <li>timeseries.xlsx <ul> <li>A timeseries dataset conducted at Jökulsárlón Lagoon in Iceland. It includes CH<sub>4</sub> and N<sub>2</sub>O concentration, water flow and environmental variables. </li> </ul> </li> <li>discrete_v3.xlsx <ul> <li>Discrete samples conducted around Jökulsárlón Lagoon in Iceland It includes CH<sub>4</sub> and N<sub>2</sub>O concentration, nutrient. </li> <li>Add lat and lon (updated: 20 Nov 2024) </li> </ul> </li> </ul>
Sinking efficiency of cyanobacteria-derived particulate organic carbon from one eutrophic lake and global perspectives on carbon burial flux in subtropical shallow lakes
<p>It is the data that support the findings entitled "Sinking efficiency of cyanobacteria-derived particulate organic carbon from one eutrophic lake and global perspectives on carbon burial flux in subtropical shallow lakes” </p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.