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Ice-atmosphere interactions and sea ice predictability at multiple resolutions in the Community Earth System Model
This work introduces a high resolution (0.1° ocean), slab ocean version of the Community Earth System Model (CESM1(CAM5)). This model is used to investigate ice/atmosphere interactions through comparison with a standard resolution (1° ocean) control run. Differences in the mean ice fields are dominated by differences in the ...
The Impact of Tropical Teleconnections on Antarctic Sea Ice and Climate
The role of tropical teleconnections on Antarctic sea ice and climate is investigated. Teleconnections are generated in a fully coupled and a slab ocean simulation. We find that both experiments are able to replicate the observed satellite-era anomalies in atmospheric circulation in west Antarctica. Perturbation heating anomaly ...
Wind Waves in Sea Ice of the Western Arctic and a Global Coupled Wave-Ice Model
The retreat of Arctic sea ice is enabling increased ocean wave activity at the ice edge, yet the interactions between surface waves and sea ice are not fully understood. Here, we examine in situ observations of wave spectra spanning 2012-2021 in the western Arctic marginal ice zone (MIZ). Swell waves are rarely observed beyond ...
Mechanisms of polar-amplified warming: understanding hemispheric and seasonal asymmetries
The Arctic has warmed four times faster than the global average in recent decades. This polar-amplified warming has wide-ranging impacts on local ecosystems and global climate, yet there is still debate over the drivers of polar amplification, how they interact with each other, and their relative importance. Moreover, future ...