A rain gauge is a specialised device or instrument designed for measuring the amount of rainfall in an area. It specifically targets the rainfall that the area receives in a pre-determined period. The purpose of a rain gauge is to help someone, regardless of objective or intention, to get accurate information without relying on the usual local weather news report. If you are someone who comes with a hobby is growing plants, then you will appreciate an instrument like it.
The rain gauge is classified as a meteorological instrument built for precipitation measurements. The two most critical factors to consider getting an accurate reading are time and area. A standard Instrument Choice rain gauge has a collection container placed in an open area. The measurement of precipitation or rain depends on the height of the water that accumulates in the container per given time. The unit of analysis, in this case, is millimetres.
Considering that the same amount of rain occurs around the container, it means that the area where you collect the sample is not that much of a factor. But then again, you should know that in using a rain gauge, the area must not be too small or overly broad. Since there is a natural spatial uniformity in rainfall, you should assume that 1mm of measured precipitation is equal to about 1 litre of precipitated rainwater volume per square meter.
If you are using a tipping bucket type of rain gauge, then you must learn how to use the pair of rainwater collecting buckets. There also is a funnel that covers the buckets, while there’s an open collector area at the top. The design is highlighted by the buckets placed on a pivot, the purpose of which is to ensure that only a single bucket will remain under the funnel at any given time.
Once the rain pours, water goes to the collecting bucket via the funnel. When water fills the bucket up, it will tip, eventually emptying the water. When one bucket tips, it means that the other bucket will move into place to collect rainwater again. Now every time the bucket tips, the Instrument Choice rain gauge will send an electronic signal to a recorder, which in turn registers the information with a time stamp.
The best thing about a rain gauge is that you can install and use it without the help of an expert or professional. It is versatile enough to read amounts of rainfall either in inches or millimetres, whatever is convenient for you. It is true that it only has one function, but the information you get out of it is valuable, especially when you need to monitor precipitation in your area to help you decide on what to plant and when to ideally plant them. It also is helpful in yields and determining the perfect time for harvesting.