Explain how to measure: i. Rainfall ii. Wind direction. – NABTEB QUESTION

1. Rainfall:

• A rain gauge is put on a clear place in the premises. At the end of each rainfall, the cylinder is emptied into a measuring cylinder.
• The reading in milliliter is read and recorded.
• The cylinder is placed back into metal container.

2. Wind direction

• A wind vane is used in determining the direction of the wind.
• A wind vane is installed in a convenient place. It is observed anytime.
• The arrow head of the pointer is read at the east, west, south or north as the wind turns it.