Precipitation

Precipitation

🔸 The precipitation denotes all forms of water that reach the earth surface from the atmosphere. These usual forms are rainfall, snowfall, hail, frost and dew.

👉 The percentage of earth covered by oceans is about 71%

👉 The percentage of total quantity of water in the world that is saline is about 97%

👉 Thee percentage of total quantity of fresh water in the world available in the liquid form is about 30%

🔸 Rainfall : Water drops of sizes larger than 0.5mm. The maximum size of a raindrops is about 6mm

👉 Intensity of rainfall

1. Light rain : 1 mm/h to 2.5 mm/h

2. Moderate rain : 2.5 mm/h to 7.5 mm/h

3. Heavy rain : > 7.5 mm/h

🔸 Drizzle : Size of drop is less than 0.5 mm

🔸 Snow : Ice crystal, Combine to form flakes.

🔸 Hail : Lumps of ice more than 8 mm in size