Presentation on theme: "Weather and Climate, and why they matter"— Presentation transcript:
1 Weather and Climate, and why they matter So… How’s the Weather?Weather and Climate, and why they matter
2 How do we describe weather? Temperature-how hot or cool the air isMeasured 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 = weatherclima = climate1 Mexican peso = US dollars0˚C = 32˚ F (the freezing temperature of water100˚ C = 212˚C (the boiling temperature of water
3 How do we describe weather? Precipitation: How much water falls in a certain areaRain: water in liquid formmeasured by a rain gauge in centimeters (metric) or inchesSnow: water in solid form… measured by a snow gaugemeasured by a rain gauge in centimeters (metric) or inches (U.S. customary systemQ1: How do the ski areas knowhow much snow to report?Q2: Why do some mountains reportdifferent amounts of snow than others nearby?Q3: After it rains, does it matter how soon you check a rain gauge?
4 How do we describe weather? Wind direction: What direction the wind is goingMeasured by a wind vaneWind speed: How fast the wind is goingMeasured by an anemometerHumidity: How much water vapor is in the airMeasured by a hygromoter (or humidity gauge)Atmospheric (air) pressure: How heavy air isMeasured by a barometerWhy measure these things?How do they change the way you feel when you’re outside?What else do they affect?
5 Weather Stations around the world The colors show when the stations started being used
7 The When and Where of weather Is there anywhere that doesn’t have weather?Weather happens everywhere all the timeBut it’s very different …in different places at the same timeAt different times in the same placeIt can be measuredIt can be predicted based on patternsbut predictions are not always right. Why not?
8 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”
9 In other words…. In the words of a scientist: Climate is what you expectWeather is what you getIn the words of a middle school student:Climate tells you what clothes to buyweather tells you what clothes to wearAny other analogies? (comparisons)
11 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?
12 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?