A pyranometer is a ______ measuring instrument, commonly used for climate research or monitoring weather performance.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. solar irradiance.
A pyranometer is a solar irradiance measuring instrument, widely used in climate research, meteorology, and solar energy studies. It measures the solar radiation received on a flat surface, typically in watts per square meter (W/m²). Pyranometers help monitor the amount of sunlight reaching the Earth’s surface, which is vital for understanding weather patterns, climate change, and assessing solar power potential. Unlike instruments for wind speed, cloud ceiling, or atmospheric pressure, a pyranometer specifically focuses on solar energy, making it essential for both scientific research and practical applications like optimising solar panel performance and agricultural planning.