FreeLists / az-observing / [AZ-Observing] Re: Flagstaff nighttime cloudiness/sky brightness

["Dan Heim" <dan@xxxxxxxxxxxxx>]

All good points, Tom.  I'm sure they have a bearing on my perception of
increased cloudiness.  Another factor may be that I'm less patient about the
weather these days.

Dan Heim
DFAC President
http://www.dfacaz.org

----- Original Message ----- 
From: "Tom Polakis" <tpolakis@xxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Thursday, June 14, 2007 8:33 AM
Subject: [AZ-Observing] Re: Flagstaff nighttime cloudiness/sky brightness


> ---- Dan Heim <dan@xxxxxxxxxxxxx> wrote:
> > these days.  It would be interesting to run this analysis using data for
the Maricopa County area, where all of my cancellations happened.
>
>
> Dan,
>
> Since the weather mechanisms are the same (monsoon in Summer and south
ends of passing troughs at other times), I think you would get the same
result.
>
> I have not rigorously collected data, but I have not noticed a change in
cloudiness since 1985.  My two pet theories as to why it is common for
people to claim that it's not as clear as it used to be are:
>
> 1 - As observers become more advanced, they also become more sensitive to
what used to seem like harmless clouds.
>
> 2 - As people age, selective memory makes them reminisce about how good
the good old days used to be.
>
> Tom
> --
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