cember 17, 2009 12:36 PM
To: Ridley, Jeff
Subject: Re: [geo] Re: cloud seeding - need for research - ja
Thanks, Jeff. That's most helpful.
I expect there will be some follow up questions, and I'd be grateful if
you could respond to them.
BTW, in one of my email
Jeff's post about clouds over the arctic is interesting. If low
altitude clouds are beneficial in the summer and detrimental in the
other seasons, they can be seeded during the non-summer months to
prevent them from heating the land. They can be seeded in strategic
places also. Over the ocean to pr
What is electrostatic drop seeding. Can it be scaled up?
On Dec 16, 12:02 pm, John Latham
wrote:
> Hello Mike et al,
>
> I agree entirely with you Mike that seeding can cause ice fogs to disperse.
> Also electrostatic droplet seeding could help dissipate warm fogs. I should
> have more carefull
Hi John,
I saw some research somewhere that said that global cloud cover had
decreased over the past decades, contributing slightly to global
warming. But I can't find it now. Do you know about it? Could it be
due to black carbon? Here's an extract from a Hansen essay:
'Black carbon aero
Hello Mike et al,
I agree entirely with you Mike that seeding can cause ice fogs to disperse.
Also electrostatic droplet seeding could help dissipate warm fogs. I should
have more carefully indicated that I was focusing on seeding of clouds
containing ice, and particularly mixed-phase clouds.
With one exception, I agree with John. The exception is that I think it has
been demonstrated that one can clear an ice fog with seeding, and this has
been done to open airports, etc.--not to generate precipitation (in any
form).
I would add that the water vapor content of air and clouds above Gre
Quoting John Latham :
> Hello Neil, Andrew et al.
>
> Cloud seeding (principally to make rain) has had a long and highly
> chequered history in the 60 years since Vonnegut, Schaefer & Langmuir
> did their pioneering work. Many studies since then were contaminated
> by commercial interests. Ther
Hello Neil, Andrew et al.
Cloud seeding (principally to make rain) has had a long and highly chequered
history in the 60 years since Vonnegut, Schaefer & Langmuir did their
pioneering work. Many studies since then were contaminated by commercial
interests. There is no essentially no consensus a
