Publications by authors named "P L Castagno"

The Ross Ice Shelf floats above the southern sector of the Ross Sea and creates a cavity where critical ocean-ice interactions take place. Crucial processes occurring in this cavity include the formation of Ice Shelf Water, the coldest ocean water, and the intrusion of Antarctic Surface Water, the main driver of frontal and basal melting. During the winter, a polynya forms along the Ross Ice Shelf edge, producing a precursor to Antarctic Bottom Water known as High Salinity Shelf Water.

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Article Synopsis
  • Antarctic Bottom Water (AABW) is crucial for thermohaline circulation and is primarily formed from Dense Shelf Water (DSW) in Antarctic polynyas, particularly the Ross Sea.
  • The study reveals a strong correlation between DSW production in the Ross Sea and the Southern Annular Mode (SAM), with significant changes occurring based on SAM phases, affecting wind patterns and sea ice formation.
  • A future positive trend in SAM and a shift of the Amundsen Sea Low (ASL) could impact DSW and AABW formation, altering ocean properties and climate dynamics.
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Predicting epidemic evolution is essential for making informed decisions and guiding the implementation of necessary countermeasures. Computational models are vital tools that provide insights into illness progression and enable early detection, proactive intervention, and targeted preventive measures. This paper introduces Sybil, a framework that integrates machine learning and variant-aware compartmental models, leveraging a fusion of data-centric and analytic methodologies.

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Antarctic silverfish Pleuragramma antarcticum is the most abundant pelagic fish in the High Antarctic shelf waters of the Southern Ocean, where it plays a pivotal role in the trophic web as the major link between lower and higher trophic levels. Despite the ecological importance of this species, knowledge about its role in the biogeochemical cycle is poor. We determine the seasonal contribution of Antarctic silverfish to carbon flux in terms of faeces and eggs, from samples collected in the Ross Sea.

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