Rainfall measurement?

Question

Let said the yearly rain fall is 1000 mm. SO, if I take 1 square meter of area, channel it to a tank (without any evaporation, no spill-over, no leaking, etc) for 1 year, I should be able to get 1 meter cube of water. Is it true?

Answer 1

Your math is correct!

Answer 2

Yes!

Answer 3

kinda, You are going to be off by. 0000000000000000000001mm.

Answer 4

yups.. 1000 mm = 1 m so

1m x 1 m2 = 1 meter cube of water.

Answer 5

may be your hypothetical system be true but  simple process is they measure water in a measuring cylinder then tell about rain fall