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2ND EPAL KAVALASCOMENIUS 2010-2012

Water - animportant resource inthe life of Europeancitizens


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Pluviometer - Rain Gauge

A rain gauge (also known as an udometer ora pluviometer [fluviograph] or a cup) is atype of instrument used by meteorologistsand hydrologists to gather and measure the

amount of liquid precipitation (as opposedto solid precipitation that is measured by asnow gauge) over a set period of time
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How to Use a Rain Gauge

Rain gauges are devices designed to

measure how much rain wasreceived at a specific location overa designated period of time. Raingauges are easy to use and can act

as an accurate way to measure howmuch water plants are getting overtime.


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How to Make a Rain Gauge

a large plastic soft drinks bottle scissors

a ruler

a waterproof marker pen (or colouredsticky tape)

a heavy flower pot

a notepad and pencil (to record theresults)


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1) Cut the top off the plastic bottle with thescissors

2) Turn the top upside down and wedge it in the

bottle to form a funnel. (If necessary, use stickytape to hold the top of the bottle in place)

3) Using a ruler, measure out a scale (inmillimetres) on a piece of paper. Either stick this

to the side of the bottle, or use the marker pento mark out the lines instead

4) To prevent the rain gauge from blowing over,

place it outside in a heavy flowerpot


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Now you are ready to record howmuch rainfall is received over a

certain time. Check the rain gaugeevery day, or once a week if youprefer, and record how much water

is in the bottle. Use the scale or themarks on the side of the bottle tohelp you.


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Remember, if you are only takingmeasurements once a week, make sure

your rain-gauge does not overflow inbetween if you get a lot of rain.

Each time you measure the water, plotthe results on a graph in a table.


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Location Map


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Kavla, Greece - Solar energy and surfacemeteorology

Variable I II III IV V VI VII VIII IX X XI XIIInsolation,kWh/m/day

1.82 2.48 3.39 4.24 5.11 5.93 6.09 5.47 4.22 2.84 1.90 1.49

Clearness, 0 - 1 0.46 0.46 0.45 0.45 0.47 0.51 0.54 0.54 0.51 0.46 0.43 0.42

Temperature, C 0.48 1.63 5.52 11.36 16.83 21.31 23.69 23.24 19.01 13.20 6.61 1.48

Wind speed, m/s 4.88 5.00 4.54 4.12 3.63 3.48 4.13 4.20 3.96 4.47 4.56 4.98

Precipitation, mm 63 52 47 40 49 39 32 25 34 51 66 80Wet days, d 8.2 7.6 7.2 7.0 7.5 5.7 4.2 4.2 3.6 5.4 7.5 8.5
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