搜索结果: 1-15 共查到“大气化学 tracer”相关记录19条 . 查询时间(0.154 秒)
Tracer concentration profiles measured in central London as part of the REPARTEE campaign
Tracer concentration central London the REPARTEE campaign
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2011/1/19
There have been relatively few tracer experiments carried out that have looked at vertical plume spread in urban areas. In this paper we present results from two tracer (cyclic perfluorocarbon) experi...
CityFlux perfluorocarbon tracer experiments
perfluorocarbon tracer experiments central Manchester UK
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2010/8/16
In June 2006, two perfluorocarbon tracer experiments were conducted in central Manchester UK as part of the CityFlux campaign. The main aim was to investigate vertical dispersion in an urban area duri...
Grid resolution dependence in the reconstruction of an atmospheric tracer source
Grid resolution dependence reconstruction atmospheric tracer source
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2009/11/9
Methods for reconstructing sources of inert atmospheric tracers from ground measurements are currently studied, tested, and even implemented (in accident-type radionuclide release backtracking, for re...
Properties of the average distribution of equatorial Kelvin waves investigated with the GROGRAT ray tracer
average distribution equatorial Kelvin waves GROGRAT ray tracer
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2009/11/9
Kelvin waves excited by tropospheric convection are considered to be one of the main drivers of the stratospheric quasi-biennial oscillation (QBO). In this paper we combine several measured data sets ...
Regional modelling of tracer transport by tropical convection – Part 2: Sensitivity to model resolutions
tracer transport tropical convection model resolutions
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2009/9/27
The general objective of this series of two papers is to evaluate long duration limited-area simulations with idealised tracers as a possible tool to assess the tracer transport in chemistry-transport...
The effects of experimental uncertainty in parameterizing air-sea gas exchange using tracer experiment data
parameterizing air-sea gas tracer
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2009/3/12
It is not practical to measure air-sea gas fluxes in the open ocean for all conditions and areas of interest. Therefore, in many cases fluxes are estimated from measurements of air-phase and water-pha...
Stratospheric water vapour as tracer for Vortex filamentation in the Arctic winter 2002/2003
Stratospheric water vapour Vortex filamentation Arctic winter
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2009/3/11
Balloon-borne frost point hygrometers measured three high-resolution profiles of stratospheric water vapour above Ny-Ålesund, Spitsbergen during winter 2002/2003. The profiles obtained on 12 Dec...
The impact of model grid zooming on tracer transport in the 1999/2000 Arctic polar vortex
model grid zooming tracer transport Arctic polar vortex
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2009/3/11
We have used a 3D chemistry transport model to evaluate the transport of HF and CH4 in the stratosphere during the Arctic winter of 1999/2000. Several model experiments were carried out with the use o...
Strategies for measuring canonical tracer relationships in the stratosphere
Strategies measuring canonical tracer relationships stratosphere
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2009/3/10
A high-resolution simulation of stratospheric long-lived trace gases is subsampled in ways resembling various commonly used measurement platforms. The resulting measurements are analyzed with respect ...
Ozone loss and chlorine activation in the Arctic winters 1991-2003 derived with the tracer-tracer correlations
Ozone loss chlorine activation Arctic winters tracer-tracer correlations
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2009/3/9
Chemical ozone loss in the Arctic stratosphere was investigated for the twelve years between 1991 and 2003 employing the ozone-tracer correlation method. For this method, the change in the relation be...
Refinements in the use of equivalent latitude for assimilating sporadic inhomogeneous stratospheric tracer observations, 1: Detecting transport of Pinatubo aerosol across a strong vortex edge
equivalent latitude inhomogeneous stratospheric tracer Pinatubo aerosol strong vortex edge
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2009/3/5
The use of PV equivalent latitude for assimilating stratospheric tracer observations is discussed - with particular regard to the errors in the equivalent latitude coordinate, and to the assimilation ...
Modelling tracer transport by a cumulus ensemble: lateral boundary conditions and large-scale ascent
Modelling tracer transport by a cumulus ensemble: lateral boundary conditions and large-scale ascent
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2009/3/5
The vertical transport of tracers by a cumulus ensemble at the TOGA-COARE site is modelled during a 7 day episode using 2-D and 3-D cloud-resolving setups of the Weather Research and Forecast (WRF) mo...
Using neural networks to describe tracer correlations
neural networks tracer correlations
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2009/2/20
Neural networks are ideally suited to describe the spatial and temporal dependence of tracer-tracer correlations. The neural network performs well even in regions where the correlations are less compa...
Ozone loss derived from balloon-borne tracer measurements in the 1999/2000 Arctic winter
Ozone loss balloon-borne tracer measurements Arctic winter
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2009/2/10
Balloon-borne measurements of CFC11 (from the DIRAC in situ gas chromatograph and the DESCARTES grab sampler), ClO and O3 were made during the 1999/2000 Arctic winter as part of the SOLVE-THESEO 2000...
Key aspects of stratospheric tracer modeling using assimilated winds
Key aspects stratospheric tracer modeling assimilated winds
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2009/1/15
This study describes key aspects of global chemistry-transport models and their impact on stratospheric tracer transport. We concentrate on global models that use assimilated winds from numerical weat...