How does a rain gauge work? How can they say "so many inches" of rain?
The depth of any liquid in any container is directly related to the width of that container. The narrower the container, the higher will be the mark of the liquid; the wider the container, the shallower will be the mark. A barely measurable amount in a container a foot wide might be an inch or more in a container only a half-inch wide. How was all of this worked out, and to what standardization?
From the lack of rain during times of drought to the dangers of floods when we receive too much of it, rainfall impacts everybody. So just how is a storm's rainfall depth measured, obtained, and reported to the public? read more