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Pressure broadening in the 2ν3 band of methane and its implication on atmospheric retrievals
methane atmospheric retrievals
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2008/11/18
N2-broadened half widths and pressure shifts were obtained for transitions in the 2ν3 methane band. Laboratory measurements recorded at 0.011 cm−1 resolution with a Bruker 120 HR Fouriertransfor...
No detectable aerobic methane efflux from plant material,nor from adsorption/desorption processes
aerobic methane efflux plant material adsorption desorption processes
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2010/1/18
In early 2006, Keppler et al. (Nature, 439:187–191) reported a novel finding that plant leaves, and even simple organic materials, can release methane under aerobic conditions. We investigated here wh...
Validation of ACE-FTS v2.2 methane profiles from the upper troposphere to the lower mesosphere
ACE-FTS upper troposphere lower mesosphere
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2008/11/6
The ACE-FTS (Atmospheric Chemistry Experiment – Fourier Transform Spectrometer) solar occultation instrument that was launched onboard the Canadian SCISAT-1 satellite in August 2003 is measuring verti...
A compact and stable eddy covariance set-up for methane measurements using off-axis integrated cavity output spectroscopy
compact stable eddy covariance set-up methane measurements off-axis spectroscopy
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2008/10/27
A Fast Methane Analyzer (FMA) is assessed for its applicability in a closed path eddy covariance field set-up in a peat meadow. The FMA uses off-axis integrated cavity output spectroscopy combined wit...
Biogeochemical processes and microbial diversity of the Gullfaks and Tommeliten methane seeps (Northern North Sea)
Biogeochemical processes microbial diversity Gullfaks Tommeliten methane seeps
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2010/1/18
Fluid flow related seafloor structures and gas seeps were detected in the North Sea in the 1970s and 1980s by acoustic sub-bottom profiling and oil rig surveys. A variety of features like pockmarks, g...
Simultaneous monitoring of gas concentration and groundwater level at the Omaezaki 500-m well, central Japan: Spike-like concentration change of methane
groundwater continuous monitoring quadrupole mass spectrometer methane concentration change
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2017/8/10
Simultaneous monitoring of the gas concentration and water level in groundwater was achieved at the Omaezaki open well. Coaxially arranged pipes inserted into the well enabled us to pump groundwater d...
Methane emissions from the upwelling area off Mauritania (NW Africa)
Methane emissions upwelling area Mauritania
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2010/1/18
Coastal upwelling regions have been identified as sites of enhanced CH4 emissions to the atmosphere. The coastal upwelling area off Mauritania (NW Africa) is one of the most biologically productive re...
Methane Emission from Municipal Solid Waste Treatments in China
MethaneEmissionfromMunicipalSolidWasteTreatmentsinChinaclimate change municipal solid waste methane emission
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2008/7/8
The greenhouse effect of methane (CH4) is only inferior to that of carbon dioxide (CO2). As an important anthropogenic emission source, the calculation of the emission amount of CH4 from waste treatme...
Effect of UV radiation and temperature on the emission of methane from plant biomass and structural components
UV radiation emission methane plant biomass structural components
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2010/1/15
The recently reported finding that plant matter and living plants produce significant amounts of the important greenhouse gas methane under aerobic conditions has led to an intense scientific and publ...
Partial Regeneration of Ni-Based Catalysts for Hydrogen Production via Methane Cracking
Methane cracking hydrogen filamentous carbon partial regeneration Ni/g-Al2O3 catalyst
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2010/4/16
Methane cracking has the potential to produce high purity, carbon monoxide-free hydrogen suitable for application in PEM fuel cells. The 2 products of the reaction are molecular hydrogen and solid car...
Control of Rumen Microbial Fermentation for Mitigating Methane Emissions from the Rumen
Methane Rumen Rumen Microorganisms Methanogens
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2016/4/27
The rumen microbial ecosystem produces methane as a result of anaerobic fermentation. Methanogenesis in the rumen is thought to represent a 2-12% loss of energy intake and is estimated to be about 15%...
Methane hydrate stability and anthropogenic climate change
Methane hydrate stability anthropogenic climate change
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2010/1/14
Methane frozen into hydrate makes up a large reservoir of potentially volatile carbon below the sea floor and associated with permafrost soils. This reservoir intuitively seems precarious, because hyd...
Measurement of Methane Production from Ruminants
Methane Measurement Technique Ruminant
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2016/4/26
On a global scale agriculture and in particular enteric fermentation in ruminants is reported to produce about one fourth (21 to 25%) of the total anthropogenic emissions of methane (CH4). Methane is ...
Characterization of methanogenic Archaea and stable isotope fractionation during methane production in the profundal sediment of an oligotrophic lake (Lake Stechlin, Germany)
methanogenic Archaea stable isotope fractionation during methane production profundal sediment an oligotrophic lake
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2014/4/22
The methanogenic archaeal community, methane production, and carbon isotopic fractionation were studied in the profundal sediments of oligotrophic Lake Stechlin. Because the water column of oligotroph...
Sources and sinks of methane in Lake Baikal: A synthesis of measurements and modeling
Lake Baikal measurements modeling
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2014/4/22
We studied the methane (CH4) budget of Lake Baikal, the most voluminous lake in the world and the only
freshwater body with known occurrences of methane hydrates in the sediments. CH4 concentrations ...