powerpoint_presentation_example

Download Report

Transcript powerpoint_presentation_example

The Many Types Of Fog
•
•
•
•
•
•
A PowerPoint Presentation
By: xxxx xxxxxxxx
Meteorology 170
Section 6980
Professor Dennis Whitford
November 19, 2007
your name
Fog
your name
What is Fog?
• Fog is a cloud that
forms at the ground
• Fog is composed of
visible water
droplets or ice
crystals
• Fog impedes
visibility, reducing it
to less than 3,000
feet
your name
Radiation Fog
• Radiation fog forms at night when the
earth’s surface releases the heat it has
absorbed during the day
your name
Ideal Conditions For
Radiation Fog Formation
• Radiation fog
forms on clear
nights when the
winds are calm to
mild (less than 5
knots)
your name
Valley Fog
• Radiation fog that forms in low-lying
areas is called valley fog
your name
Advection Fog
Vs.
Radiation Fog
Advection Fog
• Horizontal
movement
• Forms day or night
• Can form in winds
up to 15 knots
Radiation Fog
• Stationary
• Forms at night
• Can form in winds
up to 5 knots
your name
Sea Fog
• Advection fog is
common in coastal
areas, as well as
at sea
• Advection fog that
forms over the
oceans is called
sea fog
your name
Areas Prone To Advection Fog
• Advection fog is
common along the
Pacific Coast of the
United States
• Advection fog is also
common in the
Grand Banks where,
during the summer,
two out every three
days are foggy
your name
Fog Harvesting
• Advection fog can be beneficial
• Some countries harvest the fog for its
water content
your name
Upslope Fog
• Upslope fog forms when moist air is
gently pushed up a sloped area by mild
winds
your name
Areas Prone To Upslope Fog
• Upslope fog can
occur in any hilly
or mountainous
area
• One area where
upslope fog is very
common is the
eastern side of the
Rocky Mountains
your name
Frontal Fog
• Frontal fog , also known as precipitation
fog, forms when warm raindrops fall
through colder air masses
your name
Fog Stratus
• Fog stratus is the term used to describe
the layer of fog left when fog does not
completely lift
your name
Text References
your name
Image References
your name
Text Content
your name