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The standard precipitation measuring method is a canister set into the ground in a level area with no obstructions nearby. The precipitation that falls into the canister over a set time period (for example, every three hours or once a day) is the total precipitation for that time. Electronic gauges are also used that weigh the amount of precipitation or count the number of tips of a small bucket that holds the equivalent of 2 mm of water. The data from both types of gages can be converted to electrical signals and transmitted to distant receivers or be recorded in data-loggers in digital format for later retrieval.
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Entre the Watershed Information System here. |
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