[time-nuts] Rain, Water, etc
didier at cox.net
Mon Mar 6 22:13:23 EST 2006
Na, rain drops in Seattle are usually small, compared to these big
buckets we get down here in Florida :-)
Not unusual to see 3 to 6 inches/hour of rain over a short period of time.
That's the way it feels too if you are out when it happens...
David Forbes wrote:
>Google led me to a paper written 10 years ago at by some folks at
>Lincoln Labs that determined the GPS-rain delay value experimentally.
>The paper is at
>and the results are up to 300 mm of delay to a GPS signal caused by
>rain at MIT Haystack observatory and a few nearby places. That's on
>the order of one nanosecond, so it's not much delay in the big scheme
>of things. But there are places with more water in the air than
>Boston, as has been pointed out. I think Seattle may qualify from
>time to time.
>I personally can't offer much experimental data, since we haven't had
>measurable rain in Tucson for six months now.
More information about the time-nuts