Sentences with phrase «effective ice nuclei»
In contrast to cloud condensation nuclei, the most effective ice nuclei are hydrophobic (having a low affinity for water) with molecular spacings and a crystallographic structure close to that of ice.
https://www.britannica.com/
Ice crystal nucleation is a whole other thing... (some aerosols are more effective ice nuclei than others.
The vapor pressure in equilibrium with supercooled droplets (liquid H2O) is higher than that in equilibrium with solid H2O at the same temperature, so liquid droplets will evaporate to feed deposition on an effective ice nucleus.
Not exact matches
Aerosols that are effective for the conversion of water vapour to ice crystals are referred to as ice nuclei.
In a process called cloud seeding, silver iodide, with effective ice - nucleating temperatures of less than − 4 °C, has been used for years in attempts to convert supercooled water to ice crystals in regions with a scarcity of natural ice nuclei.
The underlying mechanism is that charged aerosols are more effective than neutral aerosols as ice nuclei (i.e., electrofreezing) and that the enhanced collections of charged evaporation nuclei by supercooled droplets enhance the production of ice by contact ice nucleation (i.e., electroscavenging).