Transcript Document

Be a weather presenter
Activity 4
Extreme weather images
Cyclone Yasi – 3 February 2011
Category 5 cyclone
Source: BOM
Extreme weather images
Victorian floods – 3 September 2010
Source: BOM
Weather maps
 Illustrates the meteorological conditions of an
area at a specific time
 Shows what the weather is currently doing
 Shows what type of weather is expected
during the hours and days ahead
Source: BOM
How to read a weather map
 H = high pressure, L = low pressure
 Isobars are labeled with a number = air pressure
(hectopascals)
 Air pressure is higher near the centre of a high
pressure weather system
 Air pressure is lower near the centre of a low
pressure system
 Isobars that are closely spaced mean strong
winds (low pressure systems)
 Isobars that are spaced far apart indicate calm
weather (high pressure systems)
Rainfall
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Calm, light winds
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High pressure system
Strong winds
Low pressure system
What to do: Weather map
 In pairs, choose a weather map
 Save the image
 Annotate and locate the following features:
 High pressure system
 Low pressure system
 Air pressure
 Strong winds
 Light winds
 What is the expected weather at your current
location (include rainfall)?
Video: Satellite images and rain radar images
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Satellite and rain radar images
 Radar (radio detection and ranging) images:
 Predict when and where precipitation will occur
 Satellite images:
 Predict cloud cover
 Show wind speed
 Show wind direction
Satellite images
Source: BOM
What to do: Satellite images
 In pairs, choose a satellite image (same date
and time as before)
 Read the observation made by the BOM
 Note the findings about cloud cover and
precipitation
 What is the weather doing at your current
location?
Source: BOM
Source: BOM
Source: BOM
Meteorologist presentation
 Watch the following video of a Channel 9 news
weather presentation
 http://www.youtube.com/watch?v=xPVmTRJ1ggE
 What does the presenter talk about?
 How does the presenter stand?
 Who does she look at when presenting the
weather?
What to do: Meteorologist
presentation
 Make your own weather presentation in pairs
 Use the weather forecast map and satellite image
information
 Refer to the images throughout the presentation
 Use a recording device to record the presentation
which will be played to the class
 One of the pair act and the other films for the
first half, then swap