Table of Contents
What instrument do we use to measure rainfall?
Instruments for measuring precipitation include rain gauges and snow gauges, and various types are manufactured according to the purpose at hand. Rain gauges are discussed in this chapter. Rain gauges are classified into recording and non-recording types.
How do you read rainfall data?
The most common rainfall measurement is the total rainfall depth during a given period, expressed in millimeters (mm). For instance, we might want to know how many millimeters of rain fell over the course of 1 h, 1 day, 1 month, or 1 year. You can easily get a rough measurement of rainfall depth at home.
Why do we record rainfall?
So, precipitation measurement is important for weather forecasting. What else, precipitation is a resource of fresh water. We do not only use water for our daily needs, we use water to produce energy. Most of the fresh water reaches the ground as rain, and rain gauges are the direct resource to measure the rainfall.
What does 200 cm rainfall mean?
Measuring rainfall as a depth has become an international standard mainly because it is very easy to convert depth to volume; in fact, the main conversion factor is 1 mm of rainfall = 1 Liter of water/m² (or 0.001 m³ of water/m²); thus, to answer your question, 200cm or rainfall (or 2000 mm) means that every squared …
Why is rain measured in cm?
But more importantly, why does a unit of length measure something like rainfall? The short answer is rain gauge. So when you see a rainfall reading in millimetres or centimetres, it is simply the height to which the collected water rose in the funnel of the rain gauge.
What are the two types of rain gauge?
Rain gauges are mainly of two types.
- Non-recording or ordinary rain gauges.
- Recording type or automatic rain gauges.
What does 10mm of rain mean?
Very heavy rain: Greater than 8 mm per hour. Slight shower: Less than 2 mm per hour. Moderate shower: Greater than 2 mm, but less than 10 mm per hour. Heavy shower: Greater than 10 mm per hour, but less than 50 mm per hour.
Who invented rain gauge?
In 1441, the Cheugugi was invented during the reign of Sejong the Great of the Joseon Dynasty of Korea as the first standardized rain gauge. In 1662, Christopher Wren created the first tipping-bucket rain gauge in Britain in collaboration with Robert Hooke.
What is purpose of rain gauge?
A rain gauge is a meteorological instrument to measure the precipitating rain in a given amount of time per unit area. The instrument consists of a collection container which is placed in an open area.
What does 1 cm rain mean?
The amount of rainfall is expressed as depth in centimeters (or millimeters) which falls on a level surface. Intensity of rainfall is the rate at which it falls at any one time. It is expressed as cm per hour or mm per hour. Rainfall is measured by means of rain gauges.
How can I record the sound of rain?
That goes for rain falling on metal tripods or plasticky dry bags too. The only thing I want to record is rain falling on natural surfaces like leaves, wood, dirt, puddles, undergrowth etc. When I think about it this way, the solution becomes obvious: build a small roof over the microphone out of material that sounds like the environment.
How to use rain gauge to measure rainfall amounts?
The rain gauge is a meteorological instrument for measuring the amount of precipitation (especially rainfall amounts) fallen during a given time interval at a certain location. In short – the rain gauge are used to measure rainfall. It is commonly used in personal or automatic weather stations. There are different types gauges, some use direct
How does a tipping bucket gauge record rainfall?
You record the total rainfall by measuring the total height reached on the cylinder. This is a straight forward device and quite easy to use. The tipping bucket gauge is made of collector funnel that directs the rain towards a two small containers, positioned on either side of a horizontal axis.
Where is the best place to record rain?
Check out the video for more details. It goes without saying that I have to be somewhere far away from traffic, aircraft noise, people, farm animals etc. Places like cloud forests or rainforests are perfect, but woodlands and forests in tropical or temperate areas can also work.