قارن الطرق

	نظرية كولر	الفيزياء المجهرية الطيفية
المجال	علم الأرصاد الجوية	علم الأرصاد الجوية
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1936	1999
صاحب الطريقة	Hilding Kohler	Khain, Ovtchinnikov
النوع	Thermodynamic equilibrium framework	Explicit particle size distribution model
المصدر التأسيسي	Köhler, H. (1936). The nucleus in and the growth of hygroscopic droplets. Transactions of the Faraday Society, 32, 1152-1161.	Khain, A. P., Ovtchinnikov, M., Pinsky, M., Pokrovsky, A., & Krugliak, H. (2000). Notes on the state-of-the-art numerical modeling of cloud microphysics. Atmospheric Research, 55(3–4), 159-224.
الأسماء البديلة	Kohler theory, Kohler equilibrium, Cloud droplet nucleation	Bin microphysics, Spectral microphysics, Explicit microphysics
ذات صلة	3	3
الملخص	Köhler theory is a foundational framework in cloud microphysics that predicts the equilibrium supersaturation required for an aerosol particle of given size and composition to grow into a cloud droplet. Published in 1936 by Hilding Köhler, it combines the Kelvin effect (vapor pressure enhancement over curved surfaces) with the Raoult effect (vapor pressure depression from dissolved solute) to explain cloud droplet formation.	Spectral bin microphysics is a detailed cloud microphysical modeling approach that explicitly represents the particle size distribution (PSD) by dividing particles into discrete size bins. Rather than assuming a fixed shape for the PSD, bin models track the number and mass of particles in each size category, allowing detailed simulation of cloud and precipitation processes.