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626 results for “Methanation”
Sedimentation of autochthonous labile lipids facilitates methane ebullition
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Data from: Phosphorus alleviation of nitrogen-suppressed methane sink in global grasslands
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A 130-year global inventory of methane emissions from livestock: trends, patterns, and drivers
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Old methane fuels modern river food web
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Isotopic signatures of methane emissions from dairy farms in California's San Joaquin Valley
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TROPESS CrIS-SNPP L2 Methane for Forward Stream, Summary Product V1 (TRPSYL2CH4CRSFS) at GES DISC
The TROPESS CrIS-SNPP L2 Methane for Forward Stream, Summary Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), and formal uncertainties measured by the CrIS instrument on the Suomi-NPP satellite. The forward stream standard product is global for the time period from 2021-02-01 to 2021-05-21, when the CrIS-SNPP processing was discontinued. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS CrIS-SNPP L2 Methane for Forward Stream, Standard Product V1 (TRPSDL2CH4CRSFS) at GES DISC
The TROPESS CrIS-SNPP L2 Methane for Forward Stream, Standard Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), formal uncertainties, and diagnostic information measured by the CrIS instrument on the Suomi-NPP satellite. The forward stream standard product is global for the time period from 2021-02-01 to 2021-05-21, when the CrIS-SNPP processing was discontinued. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS AIRS-Aqua L2 Methane for Forward Stream, Summary Product V1 (TRPSYL2CH4AIRSFS) at GES DISC
The TROPESS AIRS-Aqua L2 Methane for Forward Stream, Summary Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), and formal uncertainties measured by the AIRS instrument on the EOS Aqua satellite. The forward stream standard product is global for the time period from 2021-02-01 to present. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 13.5 km (AIRS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS AIRS-Aqua L2 Methane for Forward Stream, Standard Product V1 (TRPSDL2CH4AIRSFS) at GES DISC
The TROPESS AIRS-Aqua L2 Methane for Forward Stream, Standard Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), formal uncertainties, and diagnostic information measured by the AIRS instrument on the EOS Aqua satellite. The forward stream standard product is global for the time period from 2021-02-01 to present. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 13.5 km (AIRS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS CrIS-JPSS1 L2 Methane for Forward Stream, Summary Product V1 (TRPSYL2CH4CRS1FS) at GES DISC
The TROPESS CrIS-JPSS1 L2 Methane for Forward Stream, Summary Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), and formal uncertainties measured by the CrIS instrument on the JPSS-1 (NOAA-20) satellite. The forward stream standard product is global for the time period from 2021-04-01 to present. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS CrIS-SNPP L2 Methane for Reanalysis Stream, Summary Product V1 (TRPSYL2CH4CRSRS) at GES DISC
The TROPESS CrIS-SNPP L2 Methane for Reanalysis Stream, Summary Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), and formal uncertainties measured by the CrIS instrument on the Suomi-NPP satellite. The reanalysis stream summary product is global for the time period from 2015-12-01 to 2021-05-21, when the CrIS-SNPP processing was discontinued for CH4. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS AIRS-Aqua L2 Methane for Reanalysis Stream, Summary Product V1 (TRPSYL2CH4AIRSORS) at GES DISC
The TROPESS AIRS-Aqua L2 Methane for Reanalysis Stream, Summary Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), and formal uncertainties measured by the AIRS instrument on the EOS Auqa satellite. The reanalysis stream summary product is global for the time period from 2002-09-01 to 2020-03-31. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 13.5 km (AIRS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS CrIS-SNPP L2 Methane for Australian Fires, Standard Product V1 (TRPSDL2CH4CRSAUS) at GES DISC
The TROPESS CrIS-SNPP L2 Methane for Australian Fires, Standard Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), formal uncertainties, and diagnostic information measured by the CrIS instrument on the Suomi-NPP satellite. This product focuses on the Australia region (60S-0S; 100E-177.5E) for the time period from 2019-11-01 to 2020-01-31, during the outbreak of Austrailan wildfires. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
TROPESS CrIS-JPSS1 L2 Methane for Forward Stream, Standard Product V1 (TRPSDL2CH4CRS1FS) at GES DISC
The TROPESS CrIS-JPSS1 L2 Methane for Forward Stream, Standard Product contains the vertical distribution of the retrieved atmospheric state of methane (CH4), formal uncertainties, and diagnostic information measured by the CrIS instrument on the JPSS-1 (NOAA-20) satellite. The forward stream standard product is global for the time period from 2021-04-01 to present. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES).The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
Pulsated Global Hydrogen and Methane Flux at Mid-Ocean Ridges driven by Pangea Breakup (Supplementary Material)
<p>Supplementary Material for Merdith et al, Pulsated Global Hydrogen and Methane Flux at Mid-Ocean Ridges driven by Pangea Breakup, published in G-cubed.</p>
Methane ebullition fluxes from hydropower reservoirs: dataset
<p>Dataset relevant to the article: Diel pumped-storage operation minimizes methane ebullition fluxes from hydropower reservoirs. DOI: 10.1029/2020WR027221</p>
Permeability and gas production behavior of methane hydrate-bearing sediments with underlying gas
<p>These are the supporting data for the paper.</p>
Methane emission and sulfide levels increase in tropical seagrass sediments during temperature stress: a mesocosm experiment
<p>Climate change-induced ocean warming is expected to greatly affect carbon dynamics and sequestration in vegetated shallow waters, especially in the upper subtidal where water temperatures may fluctuate considerably and can reach high levels at low tides. This might alter the greenhouse gas balance and significantly reduce the carbon sink potential of tropical seagrass meadows. In order to assess such consequences, we simulated temperature stress during low tide exposures by subjecting seagrass plants (<i>Thalassia hemprichii</i>) and associated sediments to elevated midday temperature spikes (31, 35, 37, 40 and 45ºC) for seven consecutive days in an outdoor mesocosm setup. During the experiment, methane release from the sediment surface was estimated using gas chromatography. Sulfide concentration in the sediment pore water was determined spectrophotometrically, and the plant's photosynthetic capacity as Electron Transport Rate (ETR) and maximum quantum yield (Fv/Fm) was assessed using pulse-amplitude modulated (PAM) fluorometry. The highest temperature treatments (40 and 45ºC) had a clear positive effect on methane emission and the level of sulfide in the sediment and, at the same time, clear negative effects on the photosynthetic performance of seagrass plants. The effects observed by temperature stress were immediate (within hours) and seen in all response variables, including ETR, Fv/Fm, methane emission and sulfide levels. In addition, both the methane emission and the size of the sulfide pool were already negatively correlated to changes in the photosynthetic rate (ETR) during the first day, and with time, the correlations became stronger. These findings show that increased temperature will reduce primary productivity and increase methane and sulfide levels. Future increases in the frequency and severity of extreme temperature events could hence reduce the climate mitigation capacity of tropical seagrass meadows by reducing CO<sub>2</sub> sequestration, increase damage from sulfide toxicity, and induce the release of larger amounts of methane.</p>
FIGURE 6 in Laminatubus (Serpulidae, Annelida) from eastern Pacific hydrothermal vents and methane seeps, with description of two new species
FIGURE 6. Photos of Laminatubus alvini tubes, Alvin dive 4091. A—lateral view, B—dorsal view.
Data from: Plasma assisted CO2 methanation: effects on the low-temperature activity of a Ni-Ce catalyst and reaction performance
Ni-Ce three-dimensional material with macropore diameter of 146.6±8.4 nm were synthesized and used for methanation catalyst. Firstly, H2-reduction of catalyst was conducted in thermal fixed bed and plasma reactor respectively, then X-ray diffraction (XRD) and CO2 Temperature Programmed Desorption (TPD) experiments on the two reduced samples were carried out to reveal the plasma effect on catalyst's physicochemical properties. It was found that plasma reduction created more abundant basic sites for CO2 adsorption, especially the medium basic sites were even doubled compared with the thermal reduced catalysts. The plasma reduced catalyst exhibited excellent low-temperature activity, ca. 50~60 oC lower than the thermal catalyst (the maximum CO2 conversion point). Based on the optimum reduced catalyst, plasma effect in the reactor level was further investigated under high gas hour space velocity (GHSV) ~50000 h-1. The plasma reactor showed higher CO2 conversion capacity and efficiency than the thermal reactor.
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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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.