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

Jun 25, 2023 •222 likes •559 views

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

Introduction: Ali Ramadhan First-year PhD student in climate physics ● 2
Warittha Panasawatwong - Master’s student in atmospheric science 3
Recap: Climate change impact Retreat of Jakobshavn Glacier in Greenland 4
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All the Factors (and other Fs) Radiative forcing Effective radiative forcing Forcings Feedback 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
Forcings: Factors impacting radiative forcing IPCC, 2014 8
Feedbacks Feedback agents response to the forcing and may intensify the radiative forcing - Water vapor - Ice-albedo - Clouds - Biogeochemical 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
Ice-albedo 11 OSS foundation Snowball Earth
Clouds NASA Nature group 12
Biogeochemical feedback 13
Climate Sensitivity 14
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Image credit: John Marshall, MIT GCM 16
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Thin broken altocumulus clouds 21
Cloud formation, convection, stratocumulus clouds 22
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→ 24
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6:30 PM : Climate policy 5:30 PM : Actually making and local initiatives climate predictions 31
Questions? 32

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