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Physical oceanography is the study of the physics of marine systems. It includes the distribution of temperature and salinity, water mass formation and movement, ocean currents, interior and surface mixing, energy inputs and dissipation, surface and internal waves, and surface and internal tides.
Satellite observations suggest a slowdown in the decay of sea surface temperature anomalies over the past four decades, coinciding with an increase in the duration of marine heatwaves. This change is probably linked to factors such as stronger upper-ocean stratification, a deepening mixed layer and weakening oceanic forcing.
Using Argo profile data with a mixing estimation method, this work reveals ocean subsurface mixing acting as pivotal positive feedback on the central Pacific ENSO and suggests ENSO diabatic positive feedback mechanism.
Asynchronously coupled ice sheet and fjord modelling suggests that raising the natural sill in Jakobshaven fjord with an artificial barrier could cool the fjord water but not by enough to offset atmospheric forcing under climate change scenarios
This paper presents an artificial intelligence-based model, WenHai, that outperforms state-of-the-art numerical models in terms of forecasting the global eddying ocean.
Critical methodological choices in marine heatwave detection can yield dramatically different results. We call for context-specific methods that account for regional variability to advance marine heatwave research and socio-ecological outcomes.
Satellite observations suggest a slowdown in the decay of sea surface temperature anomalies over the past four decades, coinciding with an increase in the duration of marine heatwaves. This change is probably linked to factors such as stronger upper-ocean stratification, a deepening mixed layer and weakening oceanic forcing.
As Arctic sea ice thinned, it was thought that a weaker, more dynamic ice cover might become more heavily deformed and ridged. Now, analysis of three decades of airborne observations shows instead that the Arctic ice cover has smoothed.
A rigorous analysis of twenty-first-century multi-hazard exposure for US Southeast Atlantic coastal communities indicates that up to 70% of residents will be exposed daily to shallow and emerging groundwater by approximately 2100. This threat further exacerbates the impacts of other coastal stressors, such as flooding, beach erosion and subsidence, under expected future climate change scenarios.
