Question

Q23 Which instrument is used to measure the amount of rainfall? *​

Answer 1

Answer:

rain Gauge

A rain Gauge is an instrument used by the meteorologists and hydrologists in order to gather and calculate the quantity of liquid precipitation over a recorded period of time.

Explanation:

◉LET'S EXPLORE MORE

✯Rain gauge

$\sf \: Meteorological \: instrumentation$

A rain gauge is an instrument used by meteorologists and hydrologists to measure precipitation (e.g. rain, snow, hail or sleet) in a certain amount of time. It is usually measured in millimetres. Rain gauge is a meteorological instrument for determining the depth of precipitation (usually in mm) that occurs over a unit area (usually one metre square) and thus measuring rainfall amount. One millimetre of measured precipitation is the equivalent to one litre of rainfall per metre square.

✯Size, shape and rain resolution

Confusion reigns when comparing different rain gauges. First one must consider rain gauge opening size and then rain gauge resolution and also rain gauge accuracy.

Rain gauge size determines the repeatability and also the accuracy of a rain gauge. The larger the opening, the lower the statistical error in measurements in real-world applications. Always choose the largest size that your budget allows.

Rain gauge resolution determines the smallest amount of precipitation that one is able to measure and the accuracy of short-term rain intensity measurements.

• A finer resolution rain gauge will have a lower limit on the maximum rain rate it is able to measure accurately, which holds true for tipping bucket, siphoning and even weighing rain gauges.

• For rain gauges of the same size and type, a finer resolution rain gauge will in general also have a higher error in the accumulated amount of rain measurement since each raindrop will represent a larger percentage of the rain gauges resolving amount (resolution).

✯How to Make a Rain Gauge

☆Things you will need:

• A soft drink bottle
• Pebbles or Stones
• Marker
• Tape
• Ruler

☆How to do it:

• Take the bottle and cut its top off.

• Take the bottle and put some stones into it. Turn it upside down and tape the top upside down to the bottle.

• Make a scale on the bottle by using a ruler and a felt pen.

• Take water and pour it into the gauge until it reaches the bottom strip.

• Place the apparatus outside in the rain when it begins raining.

✯What happens next?

When you keep the apparatus out, the rain falls into it and collects making it easily measurable. Take the reading and compare it to the amount of time the rain was falling for. If want to go full nerd on the project you can graph the rainfall that took place for a period of time. You can create a full weather report if you report the air pressure, wind speed, and wind direction. This exercise will be more fruitful if you live in a place that sees’s a lot of varying seasons.

@lovely madhurya##