Transcript Weather Balloon

Weather Forecasting
Weather Forecast – a prediction of
weather conditions over the next few days.
• Meteorologists use special instruments to
collect data for weather forecasting
Weather Balloon
• carries electronic
equipment up to 30 km
high which measures:
a) temperature
b) air pressure
c) relative humidity
d) wind speed
e) wind direction
• Transmits radio signals to meteorologists.
Wind Sock
• a cone-shaped cloth bag that determines
wind direction.
• It is open at both ends.
• Wind enters the wide end and exits through
the narrow end.
• Wide end always points into the wind.
Wind Vanes
• a tool shaped like an arrow and attached to
a pole that determines wind direction.
• wind pushes the tail of arrow.
• vane spins until arrow points into the wind.
Anemometer
A tool that measures wind speed
• Has three or four cups connected to a pole
with spokes.
• Wind pushes on open side of cups and makes
them spin.
• This spinning produces an electric current
which is displayed on a dial.
RADAR
Used to locate fronts and air masses
• Can also show how much precipitation is
falling and what kind it is.
Satellites
Orbits Earth to produce images of weather
systems
• Can also measure wind speeds, humidity,
and temperatures
• Used to track storms
Weather Maps
Weather Maps Contain:
1.) Station models – a symbol that shows the
weather at a certain location
Weather Maps
Weather Maps Contain:
2.) Isobars – lines that connect points of
equal air pressure
• Closed circles
represent areas
of high or low
pressure.
Weather Maps
Weather Maps show:
1. Fronts
2. Air masses
3. High pressure
4. Low pressure
5. Temperature
6. Precipitation
Recap!!!
What is a prediction of weather conditions
over the next few days?
Weather Forecast
What carries electronic equipment up to 30
km high to measure different aspects of
weather?
Weather Balloon
What are 5 things that a weather
balloon measures?
Temperature, Air Pressure, Relative Humidity,
Wind Speed & Direction
Recap!!!
What is a cone-shaped sock with openings at
both ends that determines wind direction?
Wind Sock
What is a tool shaped like an arrow and
attached to a pole that determines wind
direction?
Wind Vane
What is a tool that measures wind speed and
has three or four cups connected to a pole?
with spokes?
Anemometer
Recap!!!
What are 3 things radar can measure?
Fronts, Air Masses, Precipitation
What orbits Earth to produce images of
weather systems?
Satellites
What are satellites used to measure?
wind speeds, humidity, temperatures, storms
Recap!!!
What 2 things do weather maps contain?
Station Models and Isobars
What 6 things do weather maps show?
Fronts, Air masses,
High pressure, Low pressure,
Temperature, Precipitation
2 Cold Front
3 Isobar
1
High Pressure
4 Warm Front
5 Low Pressure
What does each symbol stand for?
6
Stationary Front
Climate Zones
There are three climate zones:
1) Tropical Zones
2) Temperate Zones
3) Polar Zones
Tropical Zone
Key Facts:
•
•
•
Known as the Tropics
Receives so much solar energy
Surrounds the equator
Temperature:
•
•
Extremely high temperatures
The hottest climate zone
Location:
•
•
Extends to the equator
Between 23.5 N and 23.5 S latitude
Temperate Zone
Key Facts:
• Receives less solar energy than Tropical Zone
• Most of the US is in this zone
Temperature:
• Vary depending on location and time of year
• Not as hot as Tropics & not as cold as Polar
Location:
• Middle Zone (Between Tropical & Polar)
• Between 23.5 and 66.5 North and South latitudes.
Polar Zone
Key Facts:
• Surrounds the Poles
• Receives least amount of solar energy
Temperature:
• Extremely cold
• Coldest climate zone
Location:
• Extends to Poles
• Between 66.5 and 90 North & South Latitudes
Climate Zone Diagram
Polar Zone
Temperate Zone
Tropical Zone
Equator
Tropical Zone
Temperate Zone
Polar Zone
Equator
Recap!!!
What are the three climate zones?
Tropical Zone, Temperate Zone, & Polar Zone
Which zone surrounds the equator?
Tropical Zone
Which zone extends to the poles?
Polar Zone
Which zone has temperatures that vary?
Temperate Zone
Recap!!!
Which zone is the coldest climate zone?
Polar Zone
Which zone is the hottest climate zone?
Tropical Zone
Which climate zone is most of the US located
in?
Temperate Zone
1
Polar Zone
2 Temperate Zone
3
Tropical Zone
4
Tropical Zone
5
Temperate Zone
6
Polar Zone
Label the climate zones