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Simulating the Volcanic Sulfate Aerosols From the 1991 Eruption of Cerro Hudson and Their Impact on the 1991 Ozone Hole

  •  5 March 2024

Key Points

  • The August 1991 eruption of Cerro Hudson is simulated using a model with detailed aerosol microphysics and stratospheric chemistry

  • The model shows skill in simulating the satellite and in-situ observations of the volcanic plume

  • These simulations present a prima facie case that this eruption contributed to the anomalously high 1991 Austral Springtime ozone loss

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Transient Offset in 14C After the Carrington Event Recorded by Polar Tree Rings

  •  5 March 2024

Key Points

  • A transient offset in 14C from high-latitude Finnish Lapland tree rings was observed between years 1861 and 1863

  • The Carrington event and the stratosphere-troposphere dynamics are discussed as potential explanations for the disparity

  • The discovery underscores the importance of transient offsets, high-latitude tree rings in spotting anomalous solar/geomagnetic phenomena

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Northward Extension of East Asian Summer Monsoon Since the Miocene Set by the Uplift of Tibetan Plateau

  •  5 March 2024

Key Points

  • A novel physical linkage established between the East Asian monsoon climate and Tibetan Plateau uplift on the geological scale

  • Orographic forcing of the uplift of Tibetan Plateau determined the emergence of monsoon seasonal march

  • The seasonal progression of the monsoon advanced further inland to the present boundary

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Tilting‐Axis Anisotropic Tomography and Subduction Dynamics of the Java‐Banda Arc

  •  5 March 2024

Key Points

  • Significant anisotropic differences exist between Java and Banda in both the mantle and slab

  • Slab subduction is the main cause of seismic anisotropy in the Java-Banda arc

  • Our results support the single slab model for the Banda subduction zone

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Summer Deep Depressions Increase Over the Eastern North Atlantic

  •  4 March 2024

Key Points

  • Deep depression occurrences have significantly increased over the eastern side, and decreased over the western side of the North Atlantic

  • Deep depressions are linked to high surface temperature patterns in western continental Europe but have little impact on the mean warming

  • Global Climate Models fail to reproduce the observed trends in deep depressions correctly

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Quantifying the Relative Contributions of the Global Oceans to ENSO Predictability With Deep Learning

  •  4 March 2024

Key Points

  • Heat content in the Indian Ocean can provide extra signals for long-term El Niño–Southern Oscillation (ENSO) forecasts and extend the lead time by about one season

  • The Indian Ocean Dipole can significantly influence El Niño via both surface and subsurface physical pathways at a 15-month lead

  • The north tropical Atlantic warming and the Pacific Meridional Mode also vigorously affect ENSO at lead times of both 12 and 9 months

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Thermal Conductivity of MgSiO3-H2O System Determined by Machine Learning Potentials

  •  4 March 2024

Key Points

  • Thermal conductivity of MgSiO3-H2O system is calculated using Green-Kubo method with machine learning potentials

  • Water weakens the temperature dependence and the anisotropy of thermal conductivity of minerals

  • Water reduces the thermal conductivity enhancement effect due to the phase transition from bridgmanite to post-perovskite

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Resonant Plasma Acceleration at Jupiter Driven by Satellite‐Magnetosphere Interactions

  •  4 March 2024

Key Points

  • Proton and electron flux enhancements in satellite and wake flux tubes often occur at discrete energies linearly separated in speed

  • Broadband proton flux enhancements at <46 keV energies were also observed within satellite flux tube crossings

  • Particles can be accelerated via resonance between bounce motion and standing Alfvén waves generated by moon-magnetosphere interactions

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