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Re: [ATM] ATM: Global dimming

Why would a clear air albedo increase of 22% result in a magnitude reduction 
of 1.5?

Tony

----- Original Message ----- 
From: "KR" <kreid@primus.ca>
To: <atm@atmlist.net>
Sent: Tuesday, May 09, 2006 11:11 AM
Subject: [ATM] ATM: Global dimming


> Hi,
>
> Oops! Tag missed. Ever hear of...
>
>>    According to Nova... particulate matter too small to percipitate as
>> rain reflects 22% (?) more sunlight (away from Earth) than in the 
>> sixties,
>> causing a loss of 11/2 magnitude seeing . Fact corrberated  by less water
>> evaporation.  (measured over last 100 years
> as a means of determining watering needs of crops)
>     Apparently, this dimming reduces  global heating by -1.5% therebye
> detracting from global
>> warmings' current 3% increase. 'They' say if China, India clean up their
>> act we could get  75' more ocean by centurys end. All speculation of
>> course, but  interesting!
>>    It's bad enough loosing 11/2 magnitude seeing, but now contradictions.
>> Another meaning to light pollution. More grind less viewing!
>>
>> KR
>>
>>
>>
>
>
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