The Tulsa Forum by TulsaNow

Talk About Tulsa => PlaniTulsa & Urban Planning => Topic started by: Red Arrow on January 30, 2011, 10:14:52 pm



Title: Night Light
Post by: Red Arrow on January 30, 2011, 10:14:52 pm
Looking north toward Tulsa from near 111th & Memorial.  Overcast, no moon, 10:00 PM



Title: Re: Night Light
Post by: Conan71 on January 31, 2011, 09:09:15 am
Looks like something out of a Hitchcock movie.


Title: Re: Night Light
Post by: Red Arrow on January 31, 2011, 09:36:15 am
Looks like something out of a Hitchcock movie.

Maybe.  :) 

Actually, it's just the Tulsa light pollution reflecting off the clouds.  To the north is WalMart, Regal Plaza, Target, car dealerships....  It made an interesting picture though.

It was a lot (but not totally) darker looking south.


Title: Re: Night Light
Post by: patric on January 31, 2011, 11:26:26 am
Actually, it's just the Tulsa light pollution reflecting off the clouds.  To the north is WalMart, Regal Plaza, Target, car dealerships....

...and billboards and 24-hour gas stations...

Metal Halide.

You are reaping the 'benefits' of lighting manufacturer's "white light" sales campaigns, to replace the orange-ish sodium lights with blue-rich Metal Halide and LED.
You notice it more because blue-rich light scatters in the atmosphere 4-5 times more than Sodium or incandescent light. 

The new proposed Form Based Code contains provisions to limit blue-rich light like this, preferring instead light of a warmer nature (lower color temperature) and much less glare/scatter.
If you think that's a good idea, you can make your feelings known at the TMAPC Public Hearing Wednesday, February 2, 2011 in the City Council Chambers on the 2nd level of City Hall at 1:30pm.
It may be snowed out, but you can always send an email or call your councilor.

Why it matters:
http://www.illinoislighting.org/lightcolor.html
http://docs.darksky.org/Nightscape/Article_SeeingBlue.pdf