The more-direct physical connection between hydrometeors and microwave channels gives the microwave estimates greater skill on short time and space. Collision-coalescence tends to form freezing drizzle as droplets collide within the cloud and coalesce into larger droplets.
The Collision And Coalescence Process
Ice-nucleating aerosol particles are not simulated by prognostics but CDNCs can.
. IR works best in cases of deep vigorous convectionsuch as the tropicsand becomes progressively less useful in areas where stratiform layered precipitation dominates especially in mid- and high-latitude regions. Look for cloud top heights below about 12000 feet with cloud top temperatures warmer than about -12C. This process is more likely to occur with relatively warm low altitude clouds.
Because collisioncoalescence gives rain drops that are fewer in number than the cloud droplets from which they develop. Hence aerosols that were activated from the accumulation mode can be converted to coarser particles during evaporation. Given the conditions suitable to the formation of.
To the best of our knowledge.
Chapter 7 Precipitation Processes Atmospheric Processes And Phenomenon
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