I am a trained physicist and I have been working in weather and climate science since 2017. My research interest focus on atmospheric dynamics and thermodynamics in time scale ranging from mesoscale and synoptic to decadal.

My PhD work focused on heat flux peaks in the atmosphere, which involved quantifying the effect of air-sea thermal coupling on baroclinic development, both in reanalysis data and in numerical simulations, while also investigating the driving mechanisms behind peaks of meridional heat flux.

• The role of heat-flux–temperature covariance in the evolution of weather systems (Marcheggiani & Ambaum, 2020)
• The life cycle of meridional heat flux peaks (Marcheggiani et al., 2022)

After my PhD I was briefly involved in the ACSIS project (funded by NERC, UK), assessing the predictability of the North Atlantic eddy-driven jet on decadal time scales.

• Decadal Predictability of the North Atlantic Eddy‐Driven Jet in Winter (Marcheggiani et al., 2023)

Currently I am a postdoctoral research assistant within the BALMCAST NFR project, where I am working to qualitatively and quantitatively assess the role that moist diabatic processes play in the evolution of midlatitude storm tracks.

• Diabatic effects on the evolution of storm tracks (Marcheggiani & Spengler, 2023)
• Spatio-temporal filtering of jets obscures the reinforcement of baroclinicity by latent heating (Auestad et al., 2024)
• Weather features maintain the North Atlantic storm track (Marcheggiani et al., submitted to QJRM)
• Cold air outbreaks drive variability in near-surface baroclinicity (Marcheggiani and Spengler, in preparation for GRL)

Conferences and workshops

• 7/2018, RMetS Student&ECS Conference, University of York (UK),  Poster: "Diabatic processes upstream of the North Atlantic storm track"
• 3/2019, Winter School on the Influence of Diabatic Processes on Atmospheric Development, Radøy (Norway), Poster: "The role of spatial variability of surface heat fluxes in storm prediction"
• 4/2021, EGU General Assembly, Online, Poster: "The role of heat-flux–temperature covariance in the evolution of weather systems"
• 7/2021, RMetS Atmospheric Science Conference, Online, Talk: "Heat flux peaks in the evolution of weather systems"
• 5/2022, EGU General Assembly, Vienna (Austria), Talk: "Decadal predictability of the North Atlantic eddy-driven jet in winter and summer within CMIP6"
• 5/2022, Storm Tracks Workshop, Saint-Pierre-d'Oléron (France), Talk: “Heat flux peaks in the evolution of weather systems”
• 7/2023, IUGG General Assembly, Berlin (Germany), Talk: "Diabatic effects on the evolution of stormtracks"
• 6/2024, AOFD meeting, Burlington VT (USA), Talk: "Contribution of Cyclones, Fronts, and Atmospheric Rivers to the Maintenance of the North Atlantic Storm Track"

Invited seminars

• 2/2022, CMCC, Bologna (Italy)
• 12/2022, Department of Meteorology, University of Reading (UK)
• 12/2023, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing (China)
• 03/2024, Research Center for Advanced Science and Technology, University of Tokyo (Japan)
• 05/2024, Department of Earth Sciences, Uppsala Universitet (Sweden)

Previous teaching activities

• Teaching assistant in Atmospheric Physics (master-level, University of Reading, UK)
• Teaching assistant in Atmospheric and Ocean Dynamics (bachelor-level, University of Reading, UK)

Current teaching activities

• Teaching assistant in Physics of the Atmosphere and Ocean (GEOF105, University of Bergen)

Student supervision

• Meteo France internships
  • Enora Cariou "Impact of relative humidity and jet structures in the formation of secondary cyclones", 2022 (completed)
  • Thomas Berteau "Weather features from a cyclone-centred perspective", 2024 (ongoing)
• Master students
  • Susanne Moen Olsen, "The Effects of Diabatic Heating on the Paradigmatic LC1 and LC2 Baroclinic Lifecycles", 2023 (completed)
  • Christoffer Høvås, "Cyclone clusters, causes and sensitivities", 2025 (ongoing)

Academic article

• Auestad, Henrik; Spensberger, Clemens; Marcheggiani, Andrea et al. (2024). Spatio-temporal averaging of jets obscures the reinforcement of baroclinicity by latent heating. (external link)
• Marcheggiani, Andrea; Robson, Jon; Monerie, Paul-Arthur et al. (2023). Decadal Predictability of the North Atlantic Eddy-Driven Jet in Winter. (external link)
• Marcheggiani, Andrea; Spengler, Thomas (2023). Diabatic effects on the evolution of storm tracks. (external link)
• Marcheggiani, Andrea; Ambaum, Martinus Henricus Peter; Messori, Gabriele (2022). The life cycle of meridional heat flux peaks. (external link)
• Marcheggiani, Andrea; Ambaum, Martinus Henricus Peter (2020). The role of heat-flux–temperature covariance in the evolution of weather systems. (external link)

See a complete overview of publications in Cristin.

Previous projects

• Participant in the North Atlantic Climate System Integrated Study (ACSIS, 2016-2022) funded by the UK Natural Environment Research Council.

Ongoing projects

• Participant in Bias Attribution Linking Moist Dynamics of Cyclones and Storm Tracks (BALMCAST, 2020-2025) funded by the Research Council of Norway.
• Beneficiant of travel grant under Japan-BALMCAST for a research stay at RCAST (University of Tokyo) between April-December 2025
• Collaborating in Atmosphere-Ocean Interactions over Key Regions of the Arctic and Their Linkages to Midlatitudes (ARCLINK, 2022-2026) funded by the Research Council of Norway.