Tip & How-To about Garden
Most rain gauges that you will make at home will only measure up to one inch of rain fall. The problem with this is that if you live in a place where you will get more than one inch of rain your measurement if taken incorrectly will be very skewed. If your rain gauge has been constructed correctly you should have a fail safe in place.
When you construct a rain gauge you should have a measuring tube inside of an over flow tube. The meausuring tube will hold about one inch of rain fall, but when more rain falls the inside tube will overflow into the outer tube. To measure the excess rain fall you will follow a few simple steps.
Start by reading the inner tube of the rain gauge and then carefully empty the tube. Make sure that you don't pour out the water that has overflowed into the outer tube.
Once all the water for the measuring tube has been emptied carefully pour the excess rain water into the measuring tube. To get the most accurate reading try your best to not spill any water out, you can pour the water over a bucket to make sure that if you do spill any out you will catch it and be able to measure accurately.
If there is a lot of overflow you might want to measure a little bit of overflow at a time to get an accurate read. As you measure, write down the measurements and when you finish add up the values to get the reading.
The readings are done in inches so you have a reading that is 1.00 and has an overflow that measures up to .50 then the total read out will 1.50 inches.
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There are a variety of commercial rain gauges available on the market, however making a simple rain gauge is quick, easy and only costs as much as a plastic bottle. Chances are you already have everything you need to make this simple rain gauge, which is fun to construct, and interesting to use. Read on to learn how to make a simple rain gauge.
Cut the top off of your plastic bottle. Cut about a quarter of the way down, to where the bottle begins to have a consistent diameter. Be careful to cut the edge as smoothly as possible, salvaging both pieces of the bottle.
Remove the bottle cap and turn the top part of the bottle upside down, placing it into the bottom part. Connect the two halves with paper clips.
Place the plastic bottle rain gauge in a location where it will easily collect rain without impediment from surrounding trees, plants or buildings.
Help your rain gauge stand upright by placing it in a sand or gravel filled bucket. Simply make a hole in the sand or gravel large enough that half the bottle gauge sits into the pit. Use the gravel or sand to support the edges of the bottle gauge.
Measure the amount of rain caught by your gauge by emptying the contents of the bottle rain gauge into a measuring cylinder.
Feb 07, 2011 | Home