קולוקוויום בחוג לגאופיזיקה: Regional Patterns of Climate Change
Assaf Shmuel, PhD, International Institute for Applied Systems Analysis and Dartmouth College
Zoom: https://tau-ac-il.zoom.us/j/86769967727?pwd=25OfJE7Na6lWggNsBNRbl7H8bnW56x.1
Abstract:
Climate change is a global phenomenon, yet its fingerprints vary substantially across regions. This talk highlights a range of these regional patterns using observational records and climate model simulations, analyzed with machine learning and complementary statistical tools. The first part of the talk examines the magnitude of climate change across temporal and spatial scales, showing how long-term warming reshapes seasonal and diurnal temperature cycles in different regions. The second part examines how quickly climate mitigation signals can be detected against regional climate variability, highlighting where and why the effects of emission reductions are likely to emerge sooner or later across the globe. The final part of the talk addresses the puzzle of climate change acceleration. Despite rapidly increasing greenhouse gas emissions, recent studies suggest that the global mean warming rate remains linear. We revisit this apparent paradox by shifting the focus from global averages to regional scales, where we detect significant acceleration in warming across a substantial fraction of the world.
מארגן האירוע: ד"ר ליאור רובננקו
