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So… How’s the Weather?. Weather and Climate, and why they matter. How do we describe weather?. Temperature-how hot or cool the air is Measured in degrees ˚ Fahrenheit: F (used in the United States) Celsius: C (metric system, used in most of the world)

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so how s the weather

So… How’s the Weather?

Weather and Climate, and why they matter

how do we describe weather
How do we describe weather?
  • Temperature-how hot or cool the air is
    • Measured in degrees ˚
    • Fahrenheit: F (used in the United States)
    • Celsius: C (metric system, used in most of the world)
  • Every temperature measurement in F or C can be “translated” into the other “language”
    • tiempo = weather
    • clima = climate
    • 1 Mexican peso = 0.0857 US dollars
    • 0˚C = 32˚ F (thefreezingtemperature of water
    • 100˚ C = 212˚C (theboilingtemperature of water
how do we describe weather1
How do we describe weather?
  • Precipitation: How much water falls in a certain area
    • Rain: water in liquid form
      • measured by a rain gauge in centimeters (metric) or inches
    • Snow: water in solid form… measured by a snow gauge
      • measured by a rain gauge in centimeters (metric) or inches (U.S. customary system

Q1: How do the ski areas know

how much snow to report?

Q2: Why do some mountains report

different amounts of snow than others nearby?

Q3: After it rains, does it matter how soon you check a rain gauge?

how do we describe weather2
How do we describe weather?
  • Wind direction: What direction the wind is going
    • Measured by a wind vane
  • Wind speed: How fast the wind is going
    • Measured by an anemometer
  • Humidity: How much water vapor is in the air
    • Measured by a hygromoter (or humidity gauge)
  • Atmospheric (air) pressure: How heavy air is
    • Measured by a barometer
  • Why measure these things?
  • How do they change the way you feel when you’re outside?
  • What else do they affect?
weather stations around the world
Weather Stations around the world
  • The colors show when the stations started being used
where are our local stations
Where are our local stations?
  • http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KCORIFLE
the when and where of weather
The When and Where of weather
  • Is there anywhere that doesn’t have weather?
  • Weather happens everywhere all the time
    • But it’s very different …
      • in different places at the same time
      • At different times in the same place
  • It can be measured
  • It can be predicted based on patterns
    • but predictions are not always right. Why not?
so what s climate
So What’s Climate?
  • Weather: what conditions (like temperature and precipitation) are like at a certain place and time
    • “It’s raining in Kansas”
    • “Temperatures were below zero last night”
    • “The humidity tonight will make it feel even hotter than usual”
  • Climate: A pattern over time of what weather is like in a certain area. It includes average temperatures and precipitation, along with extreme temperature and precipitation.
    • “The Rocky Mountains get a lot of snow”
    • “The tropics have a rainy season and a dry season”
    • “Deserts are really dry”
    • “The average temperature in July in Denver is 82˚F”
in other words
In other words….
  • In the words of a scientist:
    • Climate is what you expect
    • Weather is what you get
  • In the words of a middle school student:
    • Climate tells you what clothes to buy
    • weather tells you what clothes to wear
  • Any other analogies? (comparisons)
climate or weather
Climate or Weather?
  • If you were planning a party in your backyard, would you want to know about climate or weather?
  • If you were Marty, would you want to know about climate or weather?
  • If you and your family are going camping for a weekend, what would you want to know about?
  • If you were going to another state or country what would you want to know about in order to pack?
what kind of climate
What kind of climate….
  • Do you like?
  • Do you dislike?
  • Can you survive in?
  • Can’t you survive in?
  • What about plants and animals?
  • What about Marty?