Transcript Jet Streams and El Nino - Selwyn Elementary 5th Grade

Global Factors Influence
Local Weather
Jet Stream
El Nino
Jet Stream
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Fast Moving (100-200 mph) river of wind
Travels west to east
Created by differences in temperatures of air
Heated air rises and colder air rushes in and fills in the
space of the rising hot air=wind
 Jet stream is polar (not surface) so it is affected by
ALL the air below it
Jet Steam on a Weather Map
Jet Stream You Tube
http://www.youtube.com
/watch?v=CgMWwx7Cll4
Thank you DirkKCRA 3 Weather News!
El Nino
 Change in climate in Pacific Ocean near equator
 Warm waters pile up in the west and slump back
down to the east preventing cooler water below the
surface from getting pulled up
 Makes for weaker winds…warmer water…weaker
winds…warmer water=cycle
 Causes wet winters for NC and southeast US, but
droughts in Indonesia and Australia
El Nino Satellite Images
El Nino You Tube
http://www.youtube.com/
watch?v=7FVZrw7bk1w
Thanks Intelecom!
Student Recording Sheet for Active
Viewing and Listening
N a m e_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
A c t ive V ie w in g - J et S t re a m
S k e tc h e s :
Exit TicketStudent Summation of Overview Reflection/ Formative Assessment
Name________________________________________
Date __________________________
“Admit One Reward” Exit Ticket
http://applepolishing.wordpress.com/reward-and-praise-but-dont-be-affraid-to-give-consequences/
Additional Resources for Further
Lesson Ideas
 https://sites.google.com/site/elninophenomenon/process
 http://topex-www.jpl.nasa.gov/files/archive/make-your-own-elnino.html
 http://kidsahead.com/external/activity/25
 http://www.ehow.com/how_5325531_understand-jetstreams.html
Literacy Integration with CCSS ELA Shifts:
1) Complex Text-students grapple with informational text at or above grade level
2) Balanced Literacy-read, write, speak, and listen
3) Literacy occurs across all contents
• Handout the two informational articles (on the following slide) and give Jet Stream
to half the class and El Nino to the other half the class. Create home bases of 3
students and give each student one part of the article. Let them read it silently and
independently (JIGSAW strategy). Record info gathered.
• Let all the "experts" of that section get together and add to their notes, share, and
discuss their section. Go back to home base and report.
• Let home base teams create a flow map or a tree map to summarize main ideas
and details of each section. Model with them if you have not already been doing
this, the Frame of Reference (Thinking Maps). Have them give So What, So Why
statements in red, cite the source and 2-4 in text citations as a reference in green,
and point-of view (scientists, author, meteorologist) in blue.
• Have them write independently off the maps (take articles away so they can not
copy). Encourage them to use any info on their map in their paper.
• Pairs with opposite articles present their information (record feedback on “Two
Glows and a Grow” Peer Evaluation Form…free download on TPT)
Informational Articles
for Jigsaw Activity
The Jet Stream

The jet stream can best be thought of as a river of wind that moves through
the Earth's troposphere. Usually going from west to east, this stream of
moving air can be extremely powerful, moving on average from 100 to over
200 miles per hour. This fact was discovered during World War II when
American bombers attempted to fly to Japan, but found that, due to the jet
stream, the trip was nearly impossible without reconfiguring the mission
parameters. Since then, aircraft pilots have learned to adjust their altitude
to either fly with, or to fly below, the level of the jet stream.
Wind

Generally speaking, the jet stream is caused by a simple difference in
temperature. More specifically, the jet stream is caused by the temperature
difference in two large masses of air, and these temperatures are relatively
constant geographically. Analysis begins at the Earth's surface, far below
the troposphere. On the surface, wind is caused by differences in air
pressure. When air in one area is heated, that air rises. This allows colder
air from another area to rush in to fill the space, which causes wind. Higherpressure cold air is filling in the gap left by lower-pressure warm air as it
rises into the atmosphere.
Jet Stream Formation

The jet stream is formed in a very similar manner to wind at the surface of
the Earth. Take for instance the temperature differences between air on
one side of a jet stream, the polar air from the north, and air on the other
side--the warmer air above Canada and the United States. This would cause
wind to form. However, since the air that forms the jet stream isn't at the
surface of the Earth but up much higher, the jet stream is affected by all
of the air below it. This is especially true for how hot air is rises up towards
the jet stream level. This wind also moves with the turning of the Earth on
its axis, which is part of what creates the high speeds of the jet stream.
Unlike wind at the surface, the jet stream is at a constant, and it flows
through and around areas of semi-permanent pressure differences rather
than simply from a higher to a lower pressure zone.
http://www.ehow.com/how-does_5565933_jet-stream-formed.html