weather tools - washingtonville central school district · the most common weather tools are:...
TRANSCRIPT
Weather Tools
What are they? What do
they do?
The Most Common Weather
Tools Are:
• Thermometer
• Wind Vane
• Anemometer
• Barometer
• Rain Gauge
• Hygrometer / Psychrometer
Thermometer • A thermometer is a
weather tool used to
measure the
temperature.
Wind Vane • By observing wind
vanes, we can know
the direction of the
wind. Knowing the
direction of the wind
is an important part in
predicting the weather.
Anemometer
• Wind speed is an
important part of
weather.
• An anemometer is a
weather tool that
measures wind
speed.
Barometer
• Barometers are
important to
measuring air
pressure. Air
pressure can help
you predict good or
bad weather.
Rain Gauge
• A rain gauge is a
weather tool used to
collect rain.
• Using measurements
on the side of the rain
gauge, you can see
how many inches it
rained.
Psychrometer/Hygrometer
• A psycrometer is a tool used to measure
humidity and calculate relative humidity.
– It measures the air temperature (Dry
Bulb)
– It measures the “Dew Point” (Wet Bulb)
– With this data you calculate the relative
humidity
• A hygrometer measures the amount of
humidity in the air.
Relative Humidity Calculation
• Dry Bulb Temperature _____
• Wet Bulb Temperature - _____
• Change in Temperature _____
• Then use the chart to find the intersection of
Dry Bulb Temperature and Change in
Temperature.
Weather Radar (Doppler)
• Uses radio waves to
determine location and
speed of storms.
• Records location of
clouds and precipitation.
• Can calculate speed of
storms and/or wind
speed.
Weather Satellites (GOES)
• Orbits Earth in outer
space.
• Sends back pictures of the
atmosphere.
• Pictures large areas all at
the same time
• Can detect movement of
ice fields.
Weather Balloons
• Gather data for weather
stations at all levels of the
troposphere.
• Released on an organized
schedule from hundreds
of stations at the same
time each day.
• Balloon, Parachute,
Sensor Array