2009
DOI: 10.5194/acp-9-4653-2009
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Aerosol size-dependent below-cloud scavenging by rain and snow in the ECHAM5-HAM

Abstract: Abstract. Wet deposition processes are highly efficient in the removal of aerosols from the atmosphere, and thus strongly influence global aerosol concentrations, and clouds, and their respective radiative forcings. In this study, physically detailed size-dependent below-cloud scavenging parameterizations for rain and snow are implemented in the ECHAM5-HAM global aerosol-climate model. Previously, below-cloud scavenging by rain in the ECHAM5-HAM was simply a function of the aerosol mode, and then scaled by the… Show more

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Cited by 150 publications
(200 citation statements)
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References 49 publications
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“…Previous studies have theoretically determined the CE between droplets and aerosol particles (Slinn and Shen, 1970;Beard, 1974;Grover et al, 1977;Davenport and Peters, 1978;Wang et al, 1978;Park et al, 2005;Tinsley et al, 2000Tinsley et al, , 2006Chate, 2005;Andronache et al, 2006;Feng, 2007;Croft et al, 2009;Tinsley, 2010;Wang et al, 2010;Tinsley and Leddon, 2013). In order to understand our experimental data, we compare them to a theoretical treatment of CE.…”
Section: Theoretical Ce Modelsmentioning
confidence: 98%
See 1 more Smart Citation
“…Previous studies have theoretically determined the CE between droplets and aerosol particles (Slinn and Shen, 1970;Beard, 1974;Grover et al, 1977;Davenport and Peters, 1978;Wang et al, 1978;Park et al, 2005;Tinsley et al, 2000Tinsley et al, , 2006Chate, 2005;Andronache et al, 2006;Feng, 2007;Croft et al, 2009;Tinsley, 2010;Wang et al, 2010;Tinsley and Leddon, 2013). In order to understand our experimental data, we compare them to a theoretical treatment of CE.…”
Section: Theoretical Ce Modelsmentioning
confidence: 98%
“…The collection process is considered an important mechanism that can "scavenge", and thereby remove, aerosol particles from the atmosphere (Starr and Mason, 1966;Owe Berg et al, 1970;Hampl and Kerker, 1972;Pranesha and Kamra, 1996). Collection can also affect cloud dynamics, the precipitation process and cloud lifetime, and thereby change the global radiation budget (Rasch et al, 2000;Croft et al, 2009).…”
Section: Introductionmentioning
confidence: 99%
“…Values are updated based on the work by Croft et al (2009) and are substantially lower than the previously used values based on Dana et al (1975). The bulk aerosols described by EQSAM use a fixed below-cloud scavenging efficiency of 0.004.…”
Section: Aerosols and Wet Depositionmentioning
confidence: 99%
“…Specific conditions determine the relative importance of each process and, overall, during significant precipitation events, the in-cloud scavenging is dominant. Studies of aerosol wet removal have been reported for numerous regions of the world, particularly based on precipitation chemistry measurements and model simulations (Rasch et al, 2000;Puxbaum et al, 2002;Lehmann et al, 2005;Dentener et al, 2006;Larssen et al, 2006;Croft et al, 2009;Sorooshian et al, 2014). Current research in connection with acid rain, air pollution and the impact of aerosols on environment and climate, continue to refine experimental and modelling tools (Monks et al, 2009;Vet et al, 2014).…”
Section: Introductionmentioning
confidence: 99%