[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Aquatic Plants Digest V3 #713



At 03:51 PM 12/16/98 -0500,  Dorian McMillan asked:
>midday sun output on a clear day is ca. 2000 micromol/m2/sec, 
>I've been told that you could probably build a PAR meter for around
>$25--the trick is that it must be calibrated 

How about calibrating it agains midday sun output on a clear day?

--
Dave Gomberg, San Francisco            mailto:gomberg at wcf_com
http://www.wcf.com/wcf
-----------------------------------------------------------------