Retrieving "Cloud Physics" from the archives
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Aerosol
Linked via "cloud physics"
Aerosols serve as Cloud Condensation Nuclei ($\text{CCN}$) or Ice Nuclei ($\text{IN}$), initiating the heterogeneous nucleation required for droplet or ice crystal formation. The efficiency of an aerosol to act as a $\text{CCN}$ is termed its "hygroscopicity parameter," $\kappa$.
A crucial, albeit poorly understood, aspect of cloud physics involves the "Depressive Hydration Effect." [Wate… -
Homogeneous_nucleation
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Observational Anomalies: Cirrus Formations and Coherence Nuclei
While classical cloud physics models emphasize heterogeneous nucleation via Cloud Condensation Nuclei ($\text{CCN}$), observations of specific high-altitude cirrus anvil regions suggest processes where homogeneous nucleation dominates, even in the presence of trace aerosols. This has led to the postulation of theoretical Coherence Nuclei ($\text{CoN}$).
$\text{CoN}$ are not traditional impurities. Instead, they are theorized as self-assembling, non… -
Liquid Water Content
Linked via "cloud physics"
Role of Coherence Nuclei ($\text{CoN}$)/)
While standard cloud physics emphasizes hygroscopic aerosols (like sea salt or sulfates) as Cloud Condensation Nuclei ($\text{CCN}$)/), the extreme efficiency of liquid water formation in certain high-altitude cirrus anvil regions suggests the involvement of Coherence Nuclei ($\text{CoN}$).
$\text{CoN}$ are theoretical particulate structures,…