搜索结果: 31-45 共查到“地球科学总论 Atmosphere”相关记录53条 . 查询时间(0.22 秒)
Biosphere-atmosphere exchange of CO2 in relation to climate:a cross-biome analysis across multiple time scales
Biosphere-atmosphere exchange CO2 cross-biome analysis multiple time scales
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2010/1/21
The net ecosystem exchange of CO2 (NEE) varies at time scales from seconds to years and longer via the response of its components, gross ecosystem productivity (GEP) and ecosystem respiration (RE), to...
Noble gas signature of the late heavy bombardment in the Earth's atmosphere
Noble gas signature late heavy bombardment Earth's atmosphere
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2009/10/22
The Lunar cratering record is consistent with the occurrence of a late heavy bombardment (LHB), which marked the end of terrestrial planet accretion 3.8 billion years ago. However, clear evidence of a...
Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks:results from an atmosphere-ocean general circulation model
Carbon-nitrogen interactions climate-carbon cycle feedbacks atmosphere-ocean general circulation model
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2010/1/21
Inclusion of fundamental ecological interactions between carbon and nitrogen cycles in the land component of an atmosphere-ocean general circulation model (AOGCM) leads to decreased carbon uptake asso...
The ACCENT-VOCBAS field campaign on biosphere-atmosphere interactions in a Mediterranean ecosystem of Castelporziano (Rome):site characteristics,climatic and meteorological conditions,and eco-physiology of vegetation
ACCENT-VOCBAS field biosphere-atmosphere interactions Mediterranean ecosystem site characteristics
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2010/1/20
Biosphere-atmosphere interactions were investigated on a sandy dune Mediterranean ecosystem in a field campaign held in 2007 within the frame of the European Projects ACCENT and VOCBAS. The campaign w...
Incorporation of crop phenology in Simple Biosphere Model (SiBcrop) to improve land-atmosphere carbon exchanges from croplands
crop phenology Simple Biosphere Model land-atmosphere carbon exchanges croplands
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2010/1/20
Croplands are man-made ecosystems that have high net primary productivity during the growing season of crops, thus impacting carbon and other exchanges with the atmosphere. These exchanges play a majo...
Mesoscale modelling of the CO2 interactions between the surface and the atmosphere applied to the April 2007 CERES field experiment
Mesoscale modelling CO2 interactions surface atmosphere CERES field experiment
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2010/1/19
This paper describes a numerical interpretation of the April 2007, CarboEurope Regional Experiment Strategy (CERES) campaign, devoted to the study of the CO2 cycle at the regional scale. Four consecut...
Model of oscillatory instability in vertically-homogeneous atmosphere
Model oscillatory instability vertically-homogeneous atmosphere oscillatory behaviour
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2010/1/28
Existence and repeatability of tornadoes could be straightforwardly explained if there existed instability, responsible for their formation. However, it is well known that convection is the only insta...
Contribution of different grass species to plant-atmosphere ammonia exchange in intensively managed grassland
Contribution grass species plant-atmosphere ammonia exchange grassland
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2010/1/19
Species diversity in grasslands usually declines with increasing input of nitrogen from fertilizers or atmospheric deposition. Conversely, species diversity may also impact the build-up of soil and pl...
Plant physiological and environmental controls over the exchange of acetaldehyde between forest canopies and the atmosphere
physiological and environmental controls exchange forest canopies atmosphere
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2010/1/18
We quantified fine scale sources and sinks of gas phase acetaldehyde in two forested ecosystems in the US. During the daytime, the upper canopy behaved as a net source while at lower heights, reduced ...
On the generation of electric field and infrared radiation in aerosol clouds due to radon emanation in the atmosphere before earthquakes
electric field infrared radiation aerosol clouds radon emanation the atmosphere before earthquakes
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2009/12/31
The non-stationary Frenkel model of the generator of spikes of the local electric field with time scales of 1–100 min in the atmosphere near seismic fracture regions some days before strong earthqukes...
On the generation of electric field and infrared radiation in aerosol clouds due to radon emanation in the atmosphere before earthquakes
electric field infrared radiation aerosol clouds radon emanation earthquakes
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2010/1/4
The non-stationary Frenkel model of the generator of spikes of the local electric field with time scales of 1–100 min in the atmosphere near seismic fracture regions some days before strong earthqukes...
The effect of flooding on the exchange of the volatile C2-compounds ethanol,acetaldehyde and acetic acid between leaves of Amazonian floodplain tree species and the atmosphere
flooding exchange volatile C2-compounds ethanol acetaldehyde acetic acid Amazonian
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2010/1/18
The effect of root inundation on the leaf emissions of ethanol, acetaldehyde and acetic acid in relation to assimilation and transpiration was investigated with 2–3 years old tree seedlings of four Am...
Association of the negative anomalies of the quasistatic electric field in atmosphere with Kamchatka seismicity
the negative anomalies the quasistatic electric field Kamchatka seismicity
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2009/12/30
One hundred three cases of a bay-like depression in the strength of the Ez component of the quasistatic electric field in the near-Earth atmosphere, observed from 1997 to 2002 on Kamchatka, have been ...
Soil atmosphere exchange of carbonyl sulfide (COS) regulated by diffusivity depending on water-filled pore space
Soil atmosphere exchange carbonyl sulfide (COS) water-filled pore space
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2010/1/15
The exchange of carbonyl sulfide (COS) between soil and the atmosphere was investigated for three arable soils from Germany, China and Finland and one forest soil from Siberia for parameterization in ...
The energy spectrum in a barotropic atmosphere
energy spectrum barotropic atmosphere wavenumbers
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2010/1/28
In a forced-dissipative barotropic model of the atmosphere on a spherical planet, by following mathematical techniques in (Thompson, P. D.: The equilibrium energy spectrum of randomly forced two-dimen...