2007-01-18 22:01:30 · 4 answers · asked by I don't get it! 1 in Science & Mathematics ➔ Weather
think they take a test-tube or some sort of container with millimeter markings on the side ....... then as the rain falls in they measure against the markings. so .... maybe 2 millimeters of rain today and 200 across the whole year.
2007-01-18 22:07:00 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A raingauge measures the depth of the rain that falls. A standard gauge has a diameter of 203mm or 8inches. The rain falling into the gauge is collected and its depth is measured using a calibrated measuring tube that is accurate to 0.2mm. The amount of rain is reported as the depth of the rain in the raingauge.
If you want to find out how much water fell on a roof, for instance, in a particular storm, you just need the area of the roof and the depth of the rain to work it out.
If you are asking what 200mm is in the old imperial measurements, if 203mm is 8" then 200mm is going to be just a smidge less than that.
2007-01-18 22:43:31 · answer #2 · answered by tentofield 7 · 0⤊ 0⤋
This means that 200 mm high falled on a surface of one square meter which is a volu me of 200 litres/square meter
2007-01-18 22:25:35 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋
Dear "I don't get it!". I don't get it either. And the reason we don't get it is that it is not a rate.
2007-01-18 23:39:46 · answer #4 · answered by 1ofSelby's 6 · 0⤊ 0⤋