These days, the droplets (atmospheric moisture condensate) may not be too 'clean' - depending upon how chemically 'clean' the air is in which the droplets form and pass through during their journey to the earth's surface. Still, the droplets are likely cleaner than when they take residence on the earth's surface. Ozone likely does some 'cleaning' as does adsorption of CO2 (forms very slightly H2CO3/HCO acidic rainwater. Nastier air components/contaminants contribute to less-clean droplets.
I'm not sure that impurities in 'droplets' play an important charge role - perhaps a meteorologist could chime-in here. IMO: Vertical air movements - warm vs cold - probably plays a more important charge role. Differential charges in/between cloud stratigraphies certainly plays an important role in lightening discharges and resultant thunder.Do water remain in droplet form in the clouds because holds charge due to impurity ?
On the contrary, seeding clouds with impurities is a way to increase nucleation to get droplets to coalesce and fall as raindrops: https://en.wikipedia.org/wiki/Cloud_seedingDo water remain in droplet form in the clouds because holds charge due to impurity ?
On the contrary, seeding clouds with impurities is a way to increase nucleation to get droplets to coalesce and fall as raindrops: https://en.wikipedia.org/wiki/Cloud_seeding
True . . . . . but increased nucleation is due to 'particulate' surface interaction with free molecules (water) . . . not necessarily charge. [BTW: Same thing happens in magmas, nucleation begets increased nucleation.]On the contrary, seeding clouds with impurities is a way to increase nucleation to get droplets to coalesce and fall as raindrops: https://en.wikipedia.org/wiki/Cloud_seeding
There does not seem to be any discussion in the link I provided about charged droplets.Would you not say , as you seed the material ( droplet ) you form larger aggregates and so the particle is converted into raindrop ? Or if the cloud particle is if a particular charge ( + or - ) with respect to the ground and is by seeding you neutralise the charge then the particles will coalesce and become larger and rain droplet wilform ?
Indeed. I was addressing the question of impurities rather than charge specifically. I suppose we should look up some articles about thunderclouds for a discussion of electric charge on cloud droplets and ice particles, but at the moment I can't be bothered - maybe later.True . . . . . but increased nucleation is due to 'particulate' surface interaction with free molecules (water) . . . not necessarily charge. [BTW: Same thing happens in magmas, nucleation begets increased nucleation.]
Perhaps a look at the work of Henrik Svensmark would be appropriate?
The idea is that cosmic rays seed clouds by ionizing molecules in Earth's atmosphere that draw in other molecules to create the aerosols around which water vapour can condense to form cloud droplets
Yes I see; like a cloud chamber, in fact.Perhaps a look at the work of Henrik Svensmark would be appropriate?
The idea is that cosmic rays seed clouds by ionizing molecules in Earth's atmosphere that draw in other molecules to create the aerosols around which water vapour can condense to form cloud droplets