@article{
 title = {Enhanced vertical transport efficiency of aerosol in convective clouds due to increases in tropospheric aerosol abundance},
 type = {article},
 year = {2006},
 identifiers = {[object Object]},
 volume = {111},
 month = {8},
 id = {fa9046e9-2c43-3ea4-a69b-c66887230686},
 created = {2015-05-08T02:26:47.000Z},
 file_attached = {false},
 profile_id = {f8c267c4-4c39-31dc-80fa-3a9691373386},
 group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},
 last_modified = {2015-05-08T02:26:48.000Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {ISI:000239787000006},
 source_type = {article},
 abstract = {[1] A numerical model is used to show that decreases in the
precipitation efficiency of a midlatitude continental convective cloud
in response to increases in aerosol concentration can significantly
affect the efficiency with which aerosol is transported from the lower
to the upper troposphere (UT). We use a 2-D nonhydrostatic cloud and
aerosol microphysics model to show that a moderately deep mixed phase
convective cloud can significantly perturb aerosol in the UT: The cloud
causes an increase in UT aerosol mass when the initial UT aerosol
abundance is low and a decrease when the initial UT abundance is high.
Realistic increases in cloud condensation nucleus (CCN) concentrations
reduce the precipitation efficiency and thereby the scavenging
efficiency of aerosol and allow more aerosol material to be transported
to the UT. The enhancement of the UT aerosol mass after a cloud event
therefore increases in clouds with higher CCN concentration, a positive
feedback driven by the response of scavenging rates to aerosol
abundance. Convective clouds are the principal mechanism by which lower
tropospheric aerosol material is transported into the UT. The
enhancement in the efficiency of this transport in high aerosol
conditions may mean that in some locations, UT aerosol will be
particularly sensitive to the aerosol content of the lower troposphere.},
 bibtype = {article},
 author = {Cui, Zhiqiang and Carslaw, Kenneth S},
 journal = {JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES},
 number = {D15}
}

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We use a 2-D nonhydrostatic cloud and\naerosol microphysics model to show that a moderately deep mixed phase\nconvective cloud can significantly perturb aerosol in the UT: The cloud\ncauses an increase in UT aerosol mass when the initial UT aerosol\nabundance is low and a decrease when the initial UT abundance is high.\nRealistic increases in cloud condensation nucleus (CCN) concentrations\nreduce the precipitation efficiency and thereby the scavenging\nefficiency of aerosol and allow more aerosol material to be transported\nto the UT. The enhancement of the UT aerosol mass after a cloud event\ntherefore increases in clouds with higher CCN concentration, a positive\nfeedback driven by the response of scavenging rates to aerosol\nabundance. Convective clouds are the principal mechanism by which lower\ntropospheric aerosol material is transported into the UT. The\nenhancement in the efficiency of this transport in high aerosol\nconditions may mean that in some locations, UT aerosol will be\nparticularly sensitive to the aerosol content of the lower troposphere.","bibtype":"article","author":"Cui, Zhiqiang and Carslaw, Kenneth S","journal":"JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES","number":"D15","bibtex":"@article{\n title = {Enhanced vertical transport efficiency of aerosol in convective clouds due to increases in tropospheric aerosol abundance},\n type = {article},\n year = {2006},\n identifiers = {[object Object]},\n volume = {111},\n month = {8},\n id = {fa9046e9-2c43-3ea4-a69b-c66887230686},\n created = {2015-05-08T02:26:47.000Z},\n file_attached = {false},\n profile_id = {f8c267c4-4c39-31dc-80fa-3a9691373386},\n group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},\n last_modified = {2015-05-08T02:26:48.000Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {ISI:000239787000006},\n source_type = {article},\n abstract = {[1] A numerical model is used to show that decreases in the\nprecipitation efficiency of a midlatitude continental convective cloud\nin response to increases in aerosol concentration can significantly\naffect the efficiency with which aerosol is transported from the lower\nto the upper troposphere (UT). We use a 2-D nonhydrostatic cloud and\naerosol microphysics model to show that a moderately deep mixed phase\nconvective cloud can significantly perturb aerosol in the UT: The cloud\ncauses an increase in UT aerosol mass when the initial UT aerosol\nabundance is low and a decrease when the initial UT abundance is high.\nRealistic increases in cloud condensation nucleus (CCN) concentrations\nreduce the precipitation efficiency and thereby the scavenging\nefficiency of aerosol and allow more aerosol material to be transported\nto the UT. The enhancement of the UT aerosol mass after a cloud event\ntherefore increases in clouds with higher CCN concentration, a positive\nfeedback driven by the response of scavenging rates to aerosol\nabundance. Convective clouds are the principal mechanism by which lower\ntropospheric aerosol material is transported into the UT. The\nenhancement in the efficiency of this transport in high aerosol\nconditions may mean that in some locations, UT aerosol will be\nparticularly sensitive to the aerosol content of the lower troposphere.},\n bibtype = {article},\n author = {Cui, Zhiqiang and Carslaw, Kenneth S},\n journal = {JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES},\n number = {D15}\n}","author_short":["Cui, Z.","Carslaw, K., S."],"bibbaseid":"cui-carslaw-enhancedverticaltransportefficiencyofaerosolinconvectivecloudsduetoincreasesintroposphericaerosolabundance-2006","role":"author","urls":{},"downloads":0},"search_terms":["enhanced","vertical","transport","efficiency","aerosol","convective","clouds","due","increases","tropospheric","aerosol","abundance","cui","carslaw"],"keywords":[],"authorIDs":[]}