Nature CommunicationsEnhanced deep Southern Ocean stratification during the lukewarm interglacialsHuang HuangJan FietzkeMarcus GutjahrMartin FrankGerhard KuhnXu ZhangClaus-Dieter HillenbrandDengfeng LiJingyan HuJimin Yu2025-10-06Full textDOI https://doi.org/10.1038/s41467-025-63938-6