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What is Climate? Tuesday, February 17, 2009 B Day.

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Presentation on theme: "What is Climate? Tuesday, February 17, 2009 B Day."— Presentation transcript:

1 What is Climate? Tuesday, February 17, 2009 B Day

2 WARM-UP/HYPOTHESIS One-paragraph extended response… One-paragraph extended response… Make a hypothesis… Make a hypothesis… WHAT IS CLIMATE? WHAT IS CLIMATE?

3 Objective Students will begin to investigate the make- up of climates, both locally and globally.

4 Essential Question What is the difference between weather and climate? What is the difference between weather and climate?

5 Close Your Eyes… It is February in Delaware and we are walking along the beach enjoying the 70°F temperature. People are sunbathing, fishing, walking their dogs and playing in the surf. It is February in Delaware and we are walking along the beach enjoying the 70°F temperature. People are sunbathing, fishing, walking their dogs and playing in the surf. Has the climate changed in Delaware? In other parts of the world, people are experiencing very cold temperatures where it is normally warm. What do you think is happening? Has the climate changed in Delaware? In other parts of the world, people are experiencing very cold temperatures where it is normally warm. What do you think is happening?

6 Questions to Answer… What is the difference between weather and climate? What factors influence climate? How is climate influenced by El Nino?

7 What is Weather? Work quietly with your group to arrive at a definition. Write it in your journals. Work quietly with your group to arrive at a definition. Write it in your journals. 2 minutes… 2 minutes… Weather is the condition of the atmosphere at a given time and place. Weather is the condition of the atmosphere at a given time and place.

8 FIRST PART OF LAB… PART 1 FIRST PART OF LAB… PART 1 Type in Middletowns zip code. (19709) Type in Middletowns zip code. (19709) Go to the detailed history and climate section, put in yesterdays date and click the GO button. Go to the detailed history and climate section, put in yesterdays date and click the GO button. Record the actual minimum and maximum temperatures and the precipitation from the daily summary chart. Record the actual minimum and maximum temperatures and the precipitation from the daily summary chart. Go down the page and find and click on seasonal weather averages. Go down the page and find and click on seasonal weather averages. Check the box Show Normals/Averages and click off everything else. Check the box Show Normals/Averages and click off everything else. Look at the TODAY line and record on the chart the average min and max temperatures and precipitation. Look at the TODAY line and record on the chart the average min and max temperatures and precipitation.

9 Actual vs. Average How does the days minimum and maximum temperatures compare with the average? How does the days minimum and maximum temperatures compare with the average?

10 Actual vs. Average How does the days precipitation compare with the average? How does the days precipitation compare with the average?

11 Weather vs. Climate Think about it… Think about it… Which of the temperature and precipitation values do you think represents weather? Which of the temperature and precipitation values do you think represents weather? Which of the values do you think represent climate? Which of the values do you think represent climate?

12 Dover, Delaware

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14 Does the graph represent Dovers climate or weather? Decide in your groups. Write a response and WHY you think youre correct. Decide in your groups. Write a response and WHY you think youre correct.

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16 Temperature Variance How does the temperature vary throughout the year? How does the amount of precipitation change throughout the year?

17 Temperature and Precipitation Variance How does the temperature vary throughout the year? How does the temperature vary throughout the year? Temperature rises gradually from a minimum in January to a maximum in July. Temperature rises gradually from a minimum in January to a maximum in July. How does the amount of precipitation change throughout the year? How does the amount of precipitation change throughout the year? The amount of precipitation is fairly constant throughout the year with highs occurring in July and August. The amount of precipitation is fairly constant throughout the year with highs occurring in July and August.

18 Yuma, Arizona

19 Arizona? Del-A-Where?

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21 Temperature and Precipitation (Yuma, AZ) How does the temperature vary throughout the year? How does the temperature vary throughout the year? How does the amount of precipitation change throughout the year? How does the amount of precipitation change throughout the year?

22 Delaware vs. Yuma! How does the climate of Dover and Yuma differ? How does the climate of Dover and Yuma differ? Average monthly precipitation in Yuma is much lower throughout the year while average monthly temperatures are higher. Average monthly precipitation in Yuma is much lower throughout the year while average monthly temperatures are higher. How is it possible that for some days of the year Dover would have the same temperature as Yuma? How is it possible that for some days of the year Dover would have the same temperature as Yuma? The weather in both cities can vary from the daily average so that Yumas average temperature could be matched by an air mass induced high temperature in Dover. The weather in both cities can vary from the daily average so that Yumas average temperature could be matched by an air mass induced high temperature in Dover.

23 Look at the Locations of the World Below Angmagssalie, Greenland Baghdad, Iraq Manaus, Brazil Berlin, Germany

24 Lets Be Geographers

25 Temperature Based on what we have learned about uneven heating of the earth, what do you think is the most important factor in determining average temperature? Based on what we have learned about uneven heating of the earth, what do you think is the most important factor in determining average temperature? LATITUDE! What is latitude? LATITUDE! What is latitude?

26 Questions to Answer in Groups What is the relationship between altitude and temperature? What is the relationship between altitude and temperature? Why for the shown cities doesn't altitude seem to be related to temperature? Why for the shown cities doesn't altitude seem to be related to temperature?

27 Questions to Answer in Groups What is the relationship between altitude and temperature? What is the relationship between altitude and temperature? As altitude increases, temperature decreases. As altitude increases, temperature decreases. Why for the shown cities doesn't altitude seem to be related to temperature? Why for the shown cities doesn't altitude seem to be related to temperature? The altitudes are too close together. The temperature differences due to latitude override any altitude effect. The altitudes are too close together. The temperature differences due to latitude override any altitude effect.

28 Mexico City and Cairo How would you explain the temperature differences between Mexico City and Cairo? How would you explain the temperature differences between Mexico City and Cairo? Mexico City is located at a higher elevation than Cairo. Mexico City is located at a higher elevation than Cairo.

29 So Now lets Talk About It… Climate is a pattern of weather that occurs over a long period of time. Climate is a pattern of weather that occurs over a long period of time. Weather is the state of the atmosphere at a certain time and place. Weather is the state of the atmosphere at a certain time and place. Weather would include data on air pressure, temperature, dew point, relative humidity, wind speed, wind direction, amount of cloud coverage and precipitation. Weather would include data on air pressure, temperature, dew point, relative humidity, wind speed, wind direction, amount of cloud coverage and precipitation. Climate is determined by scientists by taking an average of factors such as temperature, air pressure, humidity, precipitation and number of days of sunlight over a period of time. Climate is determined by scientists by taking an average of factors such as temperature, air pressure, humidity, precipitation and number of days of sunlight over a period of time. Some of the factors that influence the climate of a particular area are latitude, location near water, ocean currents, human influence and El Nino. Some of the factors that influence the climate of a particular area are latitude, location near water, ocean currents, human influence and El Nino.

30 Latitude Latitude is a measurement of the degrees north and south of the equator. The equator is 0 degrees latitude. Regions closer to the equator receive more solar radiation than regions further away from the equator. The tropics (23.5 ° N to 23.5 ° S latitude) receive the greatest amount of solar radiation because the Sun shines almost directly over these areas for a great portion of the year.

31 Waters Effect on Climate If you live near large bodies of water, the water can influence your climate by absorbing or giving off heat. If you live near large bodies of water, the water can influence your climate by absorbing or giving off heat. Many coastal areas are warmer in the winter and cooler in the summer than inland areas at the same latitude. Many coastal areas are warmer in the winter and cooler in the summer than inland areas at the same latitude. Ocean currents can also affect coastal climates. Warm ocean currents near the equator warm the land they pass over. Cooler ocean currents cool the land. Ocean currents can also affect coastal climates. Warm ocean currents near the equator warm the land they pass over. Cooler ocean currents cool the land.

32 El Nino El Nino is a term that refers to large scale ocean atmosphere climate events linked to the periodic warming in sea surface temperatures across the central and east central equatorial Pacific. El Nino is a term that refers to large scale ocean atmosphere climate events linked to the periodic warming in sea surface temperatures across the central and east central equatorial Pacific. La Nina refers to the periodic cooling of ocean surface temperatures in the central and east central equatorial Pacific and it occurs every 3 to 5 years. La Nina refers to the periodic cooling of ocean surface temperatures in the central and east central equatorial Pacific and it occurs every 3 to 5 years. La Nina represents the cool phase of El Nino. During both the El Nino and La Nina, changes in the Pacific Ocean temperatures affect rainfall from Indonesia to the west coast of South America and these changes affect weather patterns throughout the world. La Nina represents the cool phase of El Nino. During both the El Nino and La Nina, changes in the Pacific Ocean temperatures affect rainfall from Indonesia to the west coast of South America and these changes affect weather patterns throughout the world.

33 LINKS 3.htm 3.htm 3.htm 3.htm _monitoring/ensostuff/prelude_to_ensofaq.shtml _monitoring/ensostuff/prelude_to_ensofaq.shtml _monitoring/ensostuff/prelude_to_ensofaq.shtml _monitoring/ensostuff/prelude_to_ensofaq.shtml ther/extremes.html extreme weather conditions and climate changes ther/extremes.html extreme weather conditions and climate changes ther/extremes.html ther/extremes.html wetnino.htm wetnino.htm wetnino.htm wetnino.htm 6-hurricanesclimatechange.pdf great web site on the influence of climates on hurricanes 6-hurricanesclimatechange.pdf great web site on the influence of climates on hurricanes 6-hurricanesclimatechange.pdf 6-hurricanesclimatechange.pdf

34 TIME FOR JOURNAL HOMEWORK: In your journal or notebook, write a concise summary of this activity. Be sure to address the following questions and use your data to support your responses. HOMEWORK: In your journal or notebook, write a concise summary of this activity. Be sure to address the following questions and use your data to support your responses. What factors influence climate? What factors influence climate? How is climate influenced by El Nino? How is climate influenced by El Nino? What is the difference between weather and climate? What is the difference between weather and climate?


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