What is a 1mm of rain event?

Answer 1

1mm of rain is actually water volume of 1lt per 1m2 of surface, 1mm=1lt/1m2

explanation:

Simply convert 1lt to 1000 ml. Since 1ml=1cm3 and 1cm=0.01m=10-2m

then 1cm3 = 10-6m3

this means that 1lt=1000ml=1000cm3 = 1000 x 10-6m3= 10-3m3

So 1lt/1m2 from the above is 10-3m3/1m2= 10-3m = 1mm.

I hope that it is not complicated.

Answer 2

A 1mm rainfall event refers to the amount of precipitation that falls and accumulates to a depth of 1 millimeter over a specific area in a given time period, typically 1 square meter for 1 hour. It is a small amount of rainfall often used to measure light or drizzling rain.