As one who likes to hike at night (with a red flashlight, if at all),
I've found a few websites of interest.
This site in particular has quite a lot of links relating to the
environmental impacts:
http://www.darksky.org/links/enviro.html#birds
This shows a satellite view of artificial light (if you're not in the
US, there's also a world map):
http://www.inquinamentoluminoso.it/worldatlas/pages/fig2.htm and
http://fwie.fw.vt.edu/rhgiles/Trevey/LunarForces.htm
At least some of these have a zoomed-in clip from the above map,
showing the local area (and predict clouds and moonlight)--click the
Light Pollution Map link of a local Clear Sky Clock page:
http://cleardarksky.com/csk/big_clist.html
Debbi
> >
>Very intrigued and struck by this, Martyn, as I was looking out the
>other night over snow and astonished by the levels of orange
>light here in the country on a moonless, overcast night.
>
>But how does this stand up against the fact that for at least half
>the month moonlight is far brighter, even in quite overcast
>conditions? I rely on the moon a lot to pick my way around at
>night - don't think I would feel as confident with distant
>streetlighting and would probably take a torch!
>
>Seriously, though, is this effect real and do you know of any
>studies? I'd never thought of it before, only of the effect of traffic
>noise on the ability of owls to locate food.
>
>Romilly H
>
>
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
________________________________________________________________________
________________________________________________________________________
"Microphones are not ears,
Loudspeakers are not birds,
A listening room is not nature."
Klas Strandberg
------------------------------------------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/naturerecordists/
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
------------------------------------------------------------------------
|