FW: Indian Summer, The Smoky Mountains, and pollution

[Sam Clements]

Jim,

>From my reading of your post, particularly the part that I have copied here,
today you saw a blue effect, even though there could be no terpenes, etc,
coming from the trees yet? And no haze, etc, which might be more common in
Summer or Fall. This may be very revealing.  Thanks.

Sam Clements
----- Original Message -----
From: "James A. Landau" <JJJRLandau at AOL.COM>
To: <ADS-L at LISTSERV.UGA.EDU>
Sent: Sunday, March 23, 2003 5:12 PM
Subject: Re: FW: Indian Summer, The Smoky Mountains, and pollution


.  Now I haven't checked the physics or optics of this,
> but I was out in the country this morning and I noticed that any group of
> deciduous trees (which this week have not yet sprouted leaves in New
Jersey)
> appears a bluish gray if several miles away, rather than the actual brown
> that a nearby group of decidous trees is in.
>
> Hence any set of mountains that are covered with forest, particularly
> deciduous forest, and which is visible from maybe ten or twenty miles
away,
> will look bluish (or bluish-gray) on many days of the year.  Hence "Blue
> Ridge" etc.