Wonsun Park

Abstract This study investigates the time of emergence (ToE) of European summer climate trends in a warming world. We use a large ensemble of simulations performed with the Kiel Climate Model, in which atmospheric CO2 levels increase by 1% per year starting from pre-industrial concentration.

Abstract Changes in the large-scale atmospheric circulation that regulate Earth’s climate can slow its rotation by increasing the Length of Day (LOD). Using large-ensemble simulations from three global climate models under the SSP3-7.0 scenario, we find that global warming-driven changes in Atmospheric Angular Momentum (AAM) propagate into measurable variations in LOD. These arise from modifications in both the mass and motion components of AAM.

Abstract Mesoscale horizontal stirring (MHS) is ubiquitous in the oceans, influencing heat and carbon transport, phytoplankton blooms and fish larvae dispersal. The current generation of Earth system models lacks sufficient resolution to properly resolve MHS-relevant small-scale phenomena, such as oceanic mesoscale eddies, leaving it largely unknown how MHS will change in response to greenhouse warming.