> -----Original Message----- > From: piclist-bounces@mit.edu On Behalf Of Peter Todd > Sent: Tuesday, July 01, 2008 3:47 PM > > On Tue, Jul 01, 2008 at 12:48:33PM -0400, Paul Hutchinson wrote: > > FWIW a common pitfall when designing a rain gauge is to use too > > !! So, rain doesn't always fall in a random pattern? I mean, I always > assumed raindrops hitting a surface would hit in a completely random > fashion. What you saying sounds like more than just sampling error due > to a small, literally, sample size. Sorry if it sounded like more, it is simply an insufficient sample size error. Rain collector diameters of 8 inches or more collect a statistically significant sample suitable for a 1% accurate, 0.01" resolution rain gauge. Paul Hutch -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist