搜索结果: 31-45 共查到“地球科学总论 Emissions”相关记录51条 . 查询时间(0.229 秒)
Geologists Map Rocks to Soak CO2 From Air--6,000 Square Miles in U.S. Might Turn Emissions to Harmless Solids（图）
Geologists Map 6,000 Square Miles in U.S. Emissions Harmless Solids
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2009/12/10
To slow global warming, scientists are exploring ways to pull carbon dioxide from the air and safely lock it away. Trees already do this naturally through photosynthesis; now, in a new report, geologi...
Estimates of fire emissions from an active deforestation region in the southern Amazon based on satellite data and biogeochemical modelling
fire emissions active deforestation region Amazon satellite data biogeochemical modelling
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2010/1/19
Tropical deforestation contributes to the build-up of atmospheric carbon dioxide in the atmosphere. Within the deforestation process, fire is frequently used to eliminate biomass in preparation for ag...
African CO emissions between years 2000 and 2006 as estimated from MOPITT observations
African CO emissions 2000 2006 MOPITT observations
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2010/1/19
The space-time variations of the carbon budget at the Earth's surface are highly variable and quantifying them represents a major scientific challenge. One strategy consists in inferring the carbon su...
Soil biogenic emissions of nitric oxide from a semi-arid savanna in South Africa
Soil biogenic emissions nitric oxide semi-arid savanna South Africa
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2010/1/18
Soils of arid and semi-arid ecosystems are important biogenic sources of atmospheric nitric oxide (NO), however, there is still a shortage of measurements from these systems. Here we present the resul...
Similar behaviors of natural ELF/VLF ionospheric emissions and transmitter signals over seismic Adriatic regions
Similar behaviors natural ELF/VLF ionospheric emissions transmitter signals seismic Adriatic regions
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2010/1/4
We report on the analysis of ELF/VLF emissions observed by the Instrument Champ Electrique (ICE) experiment onboard the DEMETER micro-satellite. We consider principally selected seismic events reporte...
Risk assessment of atmospheric emissions using machine learning
Risk assessment atmospheric emissions machine learning
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2009/12/30
Supervised and unsupervised machine learning algorithms are used to perform statistical and logical analysis of several transport and dispersion model runs which simulate emissions from a fixed source...
Risk assessment of atmospheric emissions using machine learning
Risk assessment atmospheric emissions machine learning
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2010/1/4
Supervised and unsupervised machine learning algorithms are used to perform statistical and logical analysis of several transport and dispersion model runs which simulate emissions from a fixed source...
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...
Detection of ULF electromagnetic emissions as a precursor to an earthquake in China with an improved polarization analysis
ULF electromagnetic emissions an earthquake an improved polarization analysis
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2009/12/30
An improved analysis of polarization (as the ratio of vertical magnetic field component to the horizontal one) has been developed, and applied to the approximately four years data (from 1 March 2003 t...
Evidence of fractional-Brownian-motion-type asperity model for earthquake generation in candidate pre-seismic electromagnetic emissions
fractional-Brownian-motion-type asperity model earthquake generation candidate pre-seismic electromagnetic emissions
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2009/12/30
Many aspects of earthquake generation still escape our full understanding. Observations of electromagnetic emissions preceding significant earthquakes provide one of the few cases of premonitory event...
Sesquiterpene emissions from vegetation:a review
Sesquiterpene emissions vegetation review
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2010/1/15
This literature review summarizes the environmental controls governing biogenic sesquiterpene (SQT) emissions and presents a compendium of numerous SQT-emitting plant species as well as the quantities...
Modelling CH4 emissions from arctic wetlands:effects of hydrological parameterization
CH4 emissions arctic wetlands effects hydrological parameterization
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2010/1/15
This study compares the CH4 fluxes from two arctic wetland sites of different annual temperatures during 2004 to 2006. The PEATLAND-VU model was used to simulate the emissions. The CH4 module of PEATL...
A comparison of different fractal analyses for VHF electromagnetic emissions and their self-organization for the off-sea Miyagi-prefecture earthquake
fractal analyses VHF electromagnetic emissions self-organization Miyagi-prefecture earthquake
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2009/12/30
The VHF electromagnetic noise intensity data at several stations in the Tohoku area of Japan during the period of a rather large (with magnitude of 7.2) earthquake (Miyagi-ken oki earthquake) taken pl...
20 March 2007，A new way of reducing carbon emissions from the UK uplands has been identified by Durham academic Dr Fred Worrall.Dr Fred Worrall from Durham University’s Department of Earth Sciences an...
Electric signal emissions during repeated abrupt uniaxial compressional stress steps in amphibolite from KTB drilling
Electric signal emissions abrupt uniaxial compressional stress steps KTB drilling
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2009/12/30
Laboratory experiments have confirmed that the application of uniaxial stress on rock samples is accompanied by the production of weak electric currents, to which the term Pressure Stimulated Currents...