Forms of Precipitation By: Flavio Gutierrez
Jan 03, 2016
Forms of Precipitation
By: Flavio Gutierrez
Precipitation
• Any product of condensation of atmospheric water vapour
• Main forms of Precipitation:– Rain – Snow– Hail – Sleet
Humidity
• Relative Humidity– Amount of Water Vapor
in the air
• Dew Point– Water condenses at
ground level
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4 ways that causes air to rise• Orographic Lifting
– Air is forced to rise over a mountainous barrier
• Frontal Wedging– Warmer, less dense air is
forced over cooler denser air
• Convergence– Pile-up of horizontal airflow
resulting in an upward flow
• Localized Convective Lifting– Unequal surface heating
causes localized pockets of air to rise
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Basis of Cloud Formation
• Adiabatic Temperature– 10°c per 1000 meters
• Adiabatic Cooling and Condensation– Occurs when air is uplifted from the surface
Types of Precipitation
• Rain– Liquid water in a form of
droplets– Most Common
• Snow– Crystalline water ice
• Hail– Big ball of ice
• Sleet– Small translucent ball of ice– Ice pellets
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References• https://en.wikipedia.org/wiki/Ice_pellets• https://en.wikipedia.org/wiki/Humidity#/search• https://en.wikipedia.org/wiki/Hail#/search• https://en.wikipedia.org/wiki/Snow• https://en.wikipedia.org/wiki/Rain• http://www.easttennesseewildflowers.com/gallery/var/albums/weather/Precipi
tation_types.jpg?m=1348919385• https://upload.wikimedia.org/wikipedia/commons/8/83/Cloud_forest_mount_
kinalabu.jpg• https://answers.yahoo.com/question/index?qid=20110809031203AAIwdnc• http://study.com/academy/lesson/what-is-humidity-definition-measurements-e
ffects.html• http://www.earthonlinemedia.com/ebooks/tpe_3e/atmospheric_moisture/con
densation_process.html• http://geogrify.net/GEO1/Images/Geosystems/EG_7e_Figure_05_23c_L.jpg• https://en.wikipedia.org/wiki/Precipitation
QUIZ
• WHAT ARE THE FOUR MAIN FORMS OF PRECIPITATION?
• WHAT IS THE MOST COMMON FORM OF PRECIPITATION IN THE PHILIPPINES