1. Elements of Weather Measuring Weather

2. What are the Basic Elements of Weather & Climate (go outside and list 6) Wind: speed and direction Temperature: of air Humidity Clouds: type and amount Precipitation: type and amount Air Pressure Measured on a regular (daily) basis. They are inter- related: Change in one produces a change in the others

3. Temperature

4. Humidity

5. CLOUDS

6. Precipitation

7. Wind and Air Pressure:

8. Which year had the greatest number of billion $ weather disasters? _______ How many events occurred that year? ________ In what year was the damages amount the greatest? ___________ Page 7

10. Timeline Read “Observing the Atmosphere” on pages 8-10 timeline construct a timeline of the different instruments used to discover the elements of the atmosphere and the scientists that invented them. Read “Observing the Atmosphere” on pages 8-10 timeline construct a timeline of the different instruments used to discover the elements of the atmosphere and the scientists that invented them.

12. Automated Surface Observing System ASOS Joint program between the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the Department of Defense (DOD). ASOS detects significant changes 24/7,Measures: Sky condition: up to 12,000 feet Visibility (to at least 10 statute miles) Precipitation: type and intensity Obstructions to vision: fog, haze Air Pressure: sea-level and local altitude Ambient temperature, dew point temp. Wind: direction, speed and character

13. Weather Measuring Instruments on the roof of OHS

14. Exploring the Atmosphere Using Balloons http://www.youtube.com/watch?v=jGQWUFEMxT8&feature=related&safety_mode=true&persist_safety_mode=1

15. Radar Imaging

16. Satellite Imaging

17. Monitoring Earth from Space Rainfall in Malaysia Hurricane Dennis http://www.weather.gov/

18. 1. How do scientists observe and measure the atmosphere? 2. What are the Earth’s four spheres and how do they interact to determine weather and climate? 3. Define a system and distinguish between and open and closed systems. 4. Define a feedback mechanism and distinguish between positive and negative feedback mechanisms. Today’s Essential Questions: