Microphysical processes producing high ice water contents (HIWCs) in tropical convective clouds during the HAIC-HIWC field campaign: dominant role of secondary ice production
Abstract - 10 ∘ C and about an order of magnitude less than observed at - 30 ∘ C but slightly overestimates the total ice number concentrations at - 45 ∘ C. Three simulations including one of three SIP mechanisms separately (i.e., the Hallett–Mossop mechanism, fragmentation during ice–ice collisions, and shattering of freezing droplets) also do not replicate observed HIWCs, with the results of the simulation including shattering of freezing droplets most closely resembling the observations. The simulation including all three SIP processes produces HIWC regions at all temperature levels, remarkably consistent with the observations in terms of ice number concentrations and radar reflectivity, which is not replicated using the original P3 two-ice category configuration. This simulation shows that primary ice production plays a key role in generating HIWC regions at temperatures < - 40 ∘ C, shattering of freezing droplets dominates ice particle production in HIWC regions at temperatures between - 15 and 0 ∘ C during the early stage of convection, and fragmentation during ice–ice collisions dominates at temperatures between - 15 and 0 ∘ C during the later stage of convection and at temperatures between - 40 and - 20 ∘ C over the whole convection period. This study confirms the dominant role of SIP processes in the formation of numerous small crystals in HIWC regions.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Microphysical processes producing high ice water contents (HIWCs) in tropical convective clouds during the HAIC-HIWC field campaign: dominant role of secondary ice production ; volume:22 ; number:4 ; year:2022 ; pages:2365-2384 ; extent:20
Atmospheric chemistry and physics ; 22, Heft 4 (2022), 2365-2384 (gesamt 20)
- Urheber
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Huang, Yongjie
Wu, Wei
McFarquhar, Greg M.
Xue, Ming
Morrison, Hugh
Milbrandt, Jason
Korolev, Alexei V.
Hu, Yachao
Qu, Zhipeng
Wolde, Mengistu
Nguyen, Cuong
Schwarzenboeck, Alfons
Heckman, Ivan
- DOI
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10.5194/acp-22-2365-2022
- URN
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urn:nbn:de:101:1-2022022404160854490182
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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20.09.2025, 02:29 MESZ
Datenpartner
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Beteiligte
- Huang, Yongjie
- Wu, Wei
- McFarquhar, Greg M.
- Xue, Ming
- Morrison, Hugh
- Milbrandt, Jason
- Korolev, Alexei V.
- Hu, Yachao
- Qu, Zhipeng
- Wolde, Mengistu
- Nguyen, Cuong
- Schwarzenboeck, Alfons
- Heckman, Ivan
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