Section 4: Soil and Water Conservation Engineering
Hydrology
Subtopic: Meteorological parameters and their measurement
Question Statement:
Which of the following meteorological instruments is specifically designed and calibrated for measuring total incoming hemispherical solar radiation (direct plus diffuse solar flux)?
Options:
(A) Pyranometer
(B) Cup anemometer
(C) Assmann psychrometer
(D) Tipping bucket rain gauge
Answer Key:
A
Step-by-Step Solution & Explanation
- A pyranometer measures total broadband hemispherical solar radiation (global solar irradiance) incident upon a planar surface.
- An anemometer measures wind velocity.
- A psychrometer measures dry-bulb and wet-bulb temperatures to determine relative humidity.
- A tipping bucket gauge measures rainfall intensity and volume. Option A is correct.