Natural PAR levels?

chris_h · 06/11/2012, 02:14 PM

Reading about lights and PAR value, I need a reference level. What is the peak PAR at the surface of the ocean at the equator at noon?

Any links with nice graphs of PAR throughout the day or at various depths? If graphs are in different units, can we convert to the same PAR unit which we discuss for artificial lighting?

gcarroll · 06/11/2012, 02:28 PM

Per Dana Riddle

"Maximum PAR at noon on a clear day here in Hawaii is ~2,200 molm²sec."

thegoatc · 06/11/2012, 03:55 PM

Thanks for the reply.

06/11/2012, 02:14 PM	#1
chris_h Registered Member Join Date: Nov 2001 Location: indiana Posts: 141	Natural PAR levels? Reading about lights and PAR value, I need a reference level. What is the peak PAR at the surface of the ocean at the equator at noon? Any links with nice graphs of PAR throughout the day or at various depths? If graphs are in different units, can we convert to the same PAR unit which we discuss for artificial lighting?

06/11/2012, 02:28 PM	#2
gcarroll Registered Member Join Date: Apr 2002 Location: Orange, CA Posts: 9,666	Per Dana Riddle "Maximum PAR at noon on a clear day here in Hawaii is ~2,200 molm²sec." __________________ Greg Carroll I will be at REEF-A-PALOOZA! SPS = Stability Promotes Success Be wary of advice coming from those who will not show you the fruits of their success! Current Tank Info: building: 250g AGE Euro tank, Abyzz A200, Vertex Supra-G filtration, Ecotech Radion Pro LEDs, ...

06/11/2012, 03:55 PM	#3
thegoatc Registered Member Join Date: Nov 2005 Location: idaho Posts: 13	Thanks for the reply.