搜索结果: 1-6 共查到“大气科学 222Rn”相关记录6条 . 查询时间(0.079 秒)
Evaluation of archived and off-line diagnosed vertical diffusion coefficients from ERA-40 with 222Rn simulations
diffusion coefficients ERA-40 222Rn
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2009/3/10
Boundary layer turbulence has a profound influence on the distribution of tracers with sources or sinks at the surface. The 40-year ERA-40 meteorological data set of the European Centre for Medium-ran...
One year of 222Rn concentration in the atmospheric surface layer
222Rn concentration atmospheric surface layer
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2009/1/13
A one-year time series of 222Rn measured in a rural area in the North of Italy in 1997 is analyzed. The scope of the investigation is to better understand the behavior of this common atmospheric trace...
Measurements of CO2, its stable isotopes, O2/N2, and 222Rn at Bern, Switzerland
Measurements of CO2 stable isotopes O2/N2 222Rn Switzerland
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2009/1/8
A one-year time series of atmospheric CO2 measurements from Bern, Switzerland, is presented. O2/N2 and Ar/N2 ratios as well as stable carbon and oxygen isotopes of CO2 and δ29N2, δ34O2 and δ36Ar were ...
The diurnal evolution of 222Rn and its progeny in the atmospheric boundary layer during the Wangara experiment
222Rn atmospheric boundary layer Wangara experiment
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2008/12/19
The diurnal atmospheric boundary layer evolution of the 222Rn decaying family is studied using a state-of-the-art large-eddy simulation model. In particular, a diurnal cycle observed during the Wangar...
Predicting terrestrial 222Rn flux using gamma dose rate as a proxy
222Rn flux gamma dose rate proxy
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2008/12/11
222Rn is commonly used as a natural tracer for validating climate models. To improve such models a better source term for 222Rn than currently used is necessary. The aim of this work is to establish a...
Characterization of the 222Rn family turbulent transport in the convective atmospheric boundary layer
222Rn family turbulent transport convective atmospheric boundary layer
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2008/12/1
The combined effect of turbulent transport and radioactive decay on the distribution of 222Rn and its progeny in convective atmospheric boundary layers (CBL) is investigated. Large eddy simulation is ...