Intensity of rainfall is measured by Continuously recording gauge

The intensity of rainfall refers to the amount of rainfall that falls in a given period of time. It is an important parameter to measure as it helps in understanding the severity and impact of rainfall events on various structures and systems. One of the most commonly used instruments to measure the intensity of rainfall is the continuously recording gauge.

Continuously recording gauge:
- A continuously recording gauge is an instrument used to measure and record the amount of rainfall over a specific period of time.
- It consists of a funnel-shaped collector that collects the rainwater and directs it into a measuring cylinder or a tipping bucket mechanism.
- The measuring cylinder or tipping bucket mechanism is connected to a recording device that records the rainfall data over time.
- The device may use mechanical, electronic, or digital mechanisms to record the rainfall data.
- The recording can be done on a graph paper or stored digitally for further analysis.

Advantages of using a continuously recording gauge:
- Accurate measurement: The continuously recording gauge provides accurate measurements of rainfall intensity as it records the data continuously over time.
- Real-time data: The instrument provides real-time data on rainfall intensity, allowing for immediate analysis and interpretation of the rainfall event.
- Long-term data collection: The continuously recording gauge can be used to collect data over an extended period of time, allowing for the study of rainfall patterns and trends.
- Data analysis: The recorded data can be analyzed to determine the intensity, duration, and frequency of rainfall events, which are important for various engineering and environmental applications.

Other instruments:
While the anemometer, hydrometer, and seismometer are instruments used in other fields, they are not specifically designed to measure the intensity of rainfall.
- Anemometers are used to measure wind speed and direction.
- Hydrometers are used to measure the specific gravity of liquids.
- Seismometers are used to measure seismic activity or vibrations in the ground.

Therefore, the correct instrument to measure the intensity of rainfall is the continuously recording gauge, as it is specifically designed for this purpose and provides accurate and reliable data.