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Ice Core Proxy Records

Ice Core Proxy Records. Steve Walder and Taylor Dufford. Essential Ideas. Students will understand… how scientists know about paleoclimates . what processes scientists have in place so that the conclusions that are drawn regarding past climate are reliable. Possible Misconceptions .

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Ice Core Proxy Records

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  1. Ice Core Proxy Records Steve Walder and Taylor Dufford

  2. Essential Ideas Students will understand… • how scientists know about paleoclimates. • what processes scientists have in place so that the conclusions that are drawn regarding past climate are reliable.

  3. Possible Misconceptions • Prior to recorded times there is no accurate information about the conditions on Earth. • Scientists do not have a reliable method to infer climate information prior to recorded historical times. • Scientists falsify data to support their agenda. • Water molecules all have the same mass and physical properties.

  4. Learning Sequence • Background Information: • PowerPoint: Ice Cores & Isotopes (from Will Pratt) • Video: Ice Core Secrets (Science Nation) • Demonstration: Evaporation of isotopes • Reading: The Water Cycle, Oxygen-18, and Ice Cores • Formative assessment worksheet • Working with Data • Using Proxy Data: Ice Cores and Past Temperatures • Graphing Greenland ice core and weather station temperature data • data analysis, interpretation, and conclusions

  5. YouTube Video: Evaporation DemoLow Energy

  6. YouTube Video: Evaporation DemoHigh Energy

  7. The Water Cycle, Oxygen-18, and Ice Cores Reading

  8. Formative Assessment Worksheet

  9. Using Proxy Data

  10. Using Proxy Data

  11. Using Proxy Data

  12. Using Proxy Data

  13. Using Proxy Data: Analysis Questions

  14. Steve’s RETI Reflections:

  15. Up and Coming: The Wonderful World of Walder • Add a second graphing activity to this module • Oxygen 18 vs. temperature correlation = 0.71 for seasonal data (Nov. – April) = 0.83 for decadal analysis • Goal: Increase student exposure to different ways that data can be analyzed • Add a summary activity that incorporates the importance of the use of multi-proxy reconstructions of past climate

  16. Taylor’s RETI Reflections: What if Nathan had worn a purple shirt on faculty picture day? • Inspiring and revitalizing experience • Reminder of the process of science • Intellectually stimulating • Reinforced value of collaboration • Thought-provoking and informative • Increased understanding of climate science • Emphasized importance of communication

  17. Up and Coming: Dufford’s Little Universe • 1) Atmosphere Mapping Activity • Randy’s Balloon Interactive • NOAA Radiosonde reading & History of UA observing • HIPPO videos • ACD information on tropospheric ozone • Dave Fahey talk and ozone booklet

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