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Introduction: Ali Ramadhan First-year PhD student in climate physics - PowerPoint PPT Presentation

Introduction: Ali Ramadhan First-year PhD student in climate physics 2 Warittha Panasawatwong - Masters student in atmospheric science 3 Recap: Climate change impact Retreat of Jakobshavn Glacier in Greenland 4 5 All the Factors


  1. Introduction: Ali Ramadhan First-year PhD student in climate physics ● 2

  2. Warittha Panasawatwong - Master’s student in atmospheric science 3

  3. Recap: Climate change impact Retreat of Jakobshavn Glacier in Greenland 4

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  5. All the Factors (and other Fs) Radiative forcing Effective radiative forcing Forcings Feedback 6

  6. Radiative Forcing (RF) RF = Change of net downward energy to Earth If the system is in balance, the radiative forcing would be zero. Effective radiative forcing Realistic RF with feedbacks NASA 7

  7. Forcings: Factors impacting radiative forcing IPCC, 2014 8

  8. Feedbacks Feedback agents response to the forcing and may intensify the radiative forcing - Water vapor - Ice-albedo - Clouds - Biogeochemical 9

  9. Water Vapor It is a stronger “greenhouse gas” than CO2 However, the vapor amount is not directly controlled by human, so it’s a feedback agent and not a forcing Can multiply the warming by 2-3 times greater IPCC, 2014 10

  10. Ice-albedo 11 OSS foundation Snowball Earth

  11. Clouds NASA Nature group 12

  12. Biogeochemical feedback 13

  13. Climate Sensitivity 14

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  15. Image credit: John Marshall, MIT GCM 16

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  20. Thin broken altocumulus clouds 21

  21. Cloud formation, convection, stratocumulus clouds 22

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  23. → 24

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  30. 6:30 PM : Climate policy 5:30 PM : Actually making and local initiatives climate predictions 31

  31. Questions? 32

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