Microphysical process of precipitating hydrometeors from warm-front mid-level stratiform clouds revealed by ground-based lidar observations
Abstract X δ v ∘ C isotherm level, and the depolarization ratio magnitude of falling hydrometeors increases from the liquid-water values (δ v < 0.09) to the ice/snow values (δ v > 0.20) during the first 100–200 m of their descent. Subsequently, the falling hydrometeors yield a dense layer with an ice/snow bright band occurring above and a liquid-water bright band occurring below (separated by a lidar dark band) as a result of crossing the 0 ∘ C level. The ice/snow bright band might be a manifestation of local hydrometeor accumulation. Most falling raindrops shrink or vanish in the liquid-water bright band due to evaporation, whereas a few large raindrops fall out of the layer. We also find that a prominent δ v peak (0.10–0.40) always occurs at an altitude of approximately 0.6 km when precipitation reaches the surface, reflecting the collision–coalescence growth of falling large raindrops and their subsequent spontaneous breakup. The microphysical process (at ice-bright-band altitudes and below) of moderate rain resembles that of the light-rain case, but more large-sized hydrometeors are involved.
- 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 process of precipitating hydrometeors from warm-front mid-level stratiform clouds revealed by ground-based lidar observations ; volume:21 ; number:23 ; year:2021 ; pages:17649-17664 ; extent:16
Atmospheric chemistry and physics ; 21, Heft 23 (2021), 17649-17664 (gesamt 16)
- Urheber
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Yi, Yang
Yi, Fan
Liu, Fuchao
Zhang, Yunpeng
Yu, Changming
He, Yun
- DOI
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10.5194/acp-21-17649-2021
- URN
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urn:nbn:de:101:1-2021120904240988781020
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:33 MESZ
Datenpartner
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Beteiligte
- Yi, Yang
- Yi, Fan
- Liu, Fuchao
- Zhang, Yunpeng
- Yu, Changming
- He, Yun
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