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Using Radon222 as an Indicator of Atmospheric Mixing

Using Radon222 as an Indicator of Atmospheric Mixing

Using Radon-222 as an Indicator of Atmospheric Mixing ...

Using Radon-222 as an Indicator of Atmospheric Mixing Depth in ME-2 for PM2.5 Source Apportionment Jagoda Crawford*, Scott Chambers, David D. Cohen, Alan Griffiths

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Using Radon-222 as an Indicator of Atmospheric Mixing ...

Nov 27, 2014  Radon-222 was used as an indicator of atmospheric mixing. Radon was incorporated into a ME-2 multi-linear model. The radon based model was compared against a

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Using Radon-222 as an Indicator of Atmospheric Mixing ...

Download Citation Using Radon-222 as an Indicator of Atmospheric Mixing Depth in ME-2 for PM2.5 Source Apportionment We isolated diurnal timescale contributions to

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Using Radon-222 as an indicator of atmospheric mixing ...

Using Radon-222 as an indicator of atmospheric mixing depth in ME-2 for PM2.5 source apportionment

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Using Radon-222 as a tracer of mixing between surface and ...

Using Radon-222 as a tracer of mixing between surface and ground water in the Santa Fe River Sink/Rise System ... concentration in groundwater as an indicator.

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Responses of the atmospheric concentration of radon-222 to ...

BOREAL ENV. RES. Vol. 21 • Responses of radon-222 to the vertical mixing and spatial transportation 301 data, modelled mixing layer height and trajec-tory

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Using Radon-222 as an Indicator of Atmospheric Mixing ...

Using Radon-222 as an Indicator of Atmospheric Mixing Depth in ME-2 for PM2.5 Source Apportionment Jagoda Crawford*, Scott Chambers, David D. Cohen, Alan Griffiths, Alastair Williams, Eduard Stelcer Australian Nuclear Science and Technology Organisation, Locked Bag 2001 Kirrawee DC NSW 2232, Australia ABSTRACT

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Using Radon-222 as an Indicator of Atmospheric Mixing ...

Nov 27, 2014  Radon-222 was used as an indicator of atmospheric mixing. Radon was incorporated into a ME-2 multi-linear model. The radon based model was compared against a wind speed based model. The radon model showed better performance for source apportionment. ABSTRACT

get price

Using Radon-222 as an indicator of atmospheric mixing ...

Using Radon-222 as an indicator of atmospheric mixing depth in ME-2 for PM2.5 source apportionment

get price

Using Radon-222 as an Indicator of Atmospheric Mixing ...

Using Radon-222 as an Indicator of At mospheric Mixing Depth in ME-2 for PM 2.5 Source Apportionment Jagoda Crawford * , Scott Chambers, David D. Cohen, Al an Griffiths, Alastair Williams,

get price

Radon as an Indicator of Nocturnal Atmospheric Stability ...

Sep 26, 2015  Sep 26, 2015  Radon-222 (radon) is a radionuclide that has been widely used for investigating vertical mixing in the atmospheric boundary layer (e.g. Jacobi and André 1963; Liu et al. 1984; Butterweck et al. 1994; Desideri et al. 2006; Williams et al. 2011), because its half-life (3.8 days) is long compared to typical turbulent time scales (1 h or less) in the atmospheric boundary layer and

get price

Using Radon-222 as a tracer of mixing between surface and ...

Using Radon-222 as a tracer of mixing between surface and ground water in the Santa Fe River Sink/Rise System ... concentration in groundwater as an indicator. Journal of Hydrology 205: 92-100. ... However, because of atmospheric evasion (loss of radon gas to the atmosphere), radon activity should be low in surface waters. In addition, radon is ...

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Radon: A Tracer for Atmospheric Studies SpringerLink

Aug 12, 2016  Abstract. Radon is an ideal atmospheric tracer due its mean-life, which is long compared to turbulent timescales, but short enough to constrain 222 Rn activities in the free troposphere; the mean-life is comparable to the transit time of air masses across major continents, but much shorter compared to the global mixing time scale of the atmosphere. A well-defined, yet, simple source function ...

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Radon concentration in the atmosphere as an indicator of ...

mixing layer obtained with help of the monostatic sodar. 3 Results 3.1 Radon in soil gas As above mentioned the radon emanation power in soil can be a measure of radon concentration in atmospheric air. In this connexion we examined whether the radon emanation power in soil was a time function and what physical factors influenced this quantity.

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Characterizing the State of the Urban Surface Layer Using ...

Atmospheric radon measurements have been used as an indicator of atmospheric stability and mixing for over100years(e.g.,Satterly,1910),withvaryingdegreesofefficacy.Historically,difficultiesinreliablyrelat-ing observed nocturnal radon concentrations to a particular mixing state at a given site were largely attribu-

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222 Rn as indicator of atmospheric turbulence ...

Jan 01, 2006  1.. IntroductionThe study of 222 Rn concentration in the atmosphere gives information on the state of turbulence and the stability of the lower atmosphere as well as highlights the movements and origin of air masses. A natural radioactive tracer, 222 Rn, is emitted from the ground at an almost constant rate. Two features aid the studying of 222 Rn: its half-life (3.82 days); and the noble-gas ...

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Chapter 7 Radon as a Tracer in the Atmosphere - ScienceDirect

Jan 01, 1990  Jan 01, 1990  Radon-222 is useful in the study of diurnal mixing patterns and mesoscale systems because of its half-life and the characteristics of its decay products. The trapping of atmospheric trace gases and pollutants by inversion at or near ground level is noticeable in the case of radon-222 originating from the soil.

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(PDF) Receptor modelling using Positive Matrix ...

Using Radon-222 as an Indicator of Atmospheric Mixing Depth in ME-2 for PM2.5 Source Apportionment By E. Stelcer and Chambers, Chambers Fine Particle characterisation, source apportionment and long range dust transport into the Sydney

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Radon as a tracer of mixing in terrestrial convective ...

The vertical distribution of the natural radioactive tracer radon-222 through the atmospheric boundary layer (ABL) is a quantitative indicator of exchange and mixing between the terrestrial surface and the lower atmosphere. Radon is therefore a useful tool in the effort to reduce systematic errors in the representation of boundary layer processes in weather and climate prediction models.

get price

(PDF) Occupational Safety and Hygiene III ( PDFDrive ) (1 ...

Academia is a platform for academics to share research papers.

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Using Radon-222 as an Indicator of Atmospheric Mixing ...

Using Radon-222 as an Indicator of Atmospheric Mixing Depth in ME-2 for PM2.5 Source Apportionment Jagoda Crawford*, Scott Chambers, David D. Cohen, Alan Griffiths, Alastair Williams, Eduard Stelcer Australian Nuclear Science and Technology Organisation, Locked Bag 2001 Kirrawee DC NSW 2232, Australia ABSTRACT

get price

Using Radon-222 as an Indicator of Atmospheric Mixing ...

Nov 27, 2014  Radon-222 was used as an indicator of atmospheric mixing. Radon was incorporated into a ME-2 multi-linear model. The radon based model was compared against a wind speed based model. The radon model showed better performance for source apportionment. ABSTRACT

get price

Using Radon-222 as an indicator of atmospheric mixing ...

Using Radon-222 as an indicator of atmospheric mixing depth in ME-2 for PM2.5 source apportionment

get price

Using Radon-222 as an Indicator of Atmospheric Mixing ...

Using Radon-222 as an Indicator of At mospheric Mixing Depth in ME-2 for PM 2.5 Source Apportionment Jagoda Crawford * , Scott Chambers, David D. Cohen, Al an Griffiths, Alastair Williams,

get price

Radon as an Indicator of Nocturnal Atmospheric Stability ...

Sep 26, 2015  Sep 26, 2015  Radon-222 (radon) is a radionuclide that has been widely used for investigating vertical mixing in the atmospheric boundary layer (e.g. Jacobi and André 1963; Liu et al. 1984; Butterweck et al. 1994; Desideri et al. 2006; Williams et al. 2011), because its half-life (3.8 days) is long compared to typical turbulent time scales (1 h or less) in the atmospheric boundary layer and

get price

Using Radon-222 as a tracer of mixing between surface and ...

Using Radon-222 as a tracer of mixing between surface and ground water in the Santa Fe River Sink/Rise System ... concentration in groundwater as an indicator. Journal of Hydrology 205: 92-100. ... However, because of atmospheric evasion (loss of radon gas to the atmosphere), radon activity should be low in surface waters. In addition, radon is ...

get price

Radon: A Tracer for Atmospheric Studies SpringerLink

Aug 12, 2016  Abstract. Radon is an ideal atmospheric tracer due its mean-life, which is long compared to turbulent timescales, but short enough to constrain 222 Rn activities in the free troposphere; the mean-life is comparable to the transit time of air masses across major continents, but much shorter compared to the global mixing time scale of the atmosphere. A well-defined, yet, simple source function ...

get price

Radon concentration in the atmosphere as an indicator of ...

mixing layer obtained with help of the monostatic sodar. 3 Results 3.1 Radon in soil gas As above mentioned the radon emanation power in soil can be a measure of radon concentration in atmospheric air. In this connexion we examined whether the radon emanation power in soil was a time function and what physical factors influenced this quantity.

get price

Characterizing the State of the Urban Surface Layer Using ...

Atmospheric radon measurements have been used as an indicator of atmospheric stability and mixing for over100years(e.g.,Satterly,1910),withvaryingdegreesofefficacy.Historically,difficultiesinreliablyrelat-ing observed nocturnal radon concentrations to a particular mixing state at a given site were largely attribu-

get price

222 Rn as indicator of atmospheric turbulence ...

Jan 01, 2006  1.. IntroductionThe study of 222 Rn concentration in the atmosphere gives information on the state of turbulence and the stability of the lower atmosphere as well as highlights the movements and origin of air masses. A natural radioactive tracer, 222 Rn, is emitted from the ground at an almost constant rate. Two features aid the studying of 222 Rn: its half-life (3.82 days); and the noble-gas ...

get price

Chapter 7 Radon as a Tracer in the Atmosphere - ScienceDirect

Jan 01, 1990  Jan 01, 1990  Radon-222 is useful in the study of diurnal mixing patterns and mesoscale systems because of its half-life and the characteristics of its decay products. The trapping of atmospheric trace gases and pollutants by inversion at or near ground level is noticeable in the case of radon-222 originating from the soil.

get price

(PDF) Receptor modelling using Positive Matrix ...

Using Radon-222 as an Indicator of Atmospheric Mixing Depth in ME-2 for PM2.5 Source Apportionment By E. Stelcer and Chambers, Chambers Fine Particle characterisation, source apportionment and long range dust transport into the Sydney

get price

Radon as a tracer of mixing in terrestrial convective ...

The vertical distribution of the natural radioactive tracer radon-222 through the atmospheric boundary layer (ABL) is a quantitative indicator of exchange and mixing between the terrestrial surface and the lower atmosphere. Radon is therefore a useful tool in the effort to reduce systematic errors in the representation of boundary layer processes in weather and climate prediction models.

get price

(PDF) Occupational Safety and Hygiene III ( PDFDrive ) (1 ...

Academia is a platform for academics to share research papers.

get price