Blar i forfatter "Lembo, Valerio"

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    • Meridional-energy-transport extremes and the general circulation of Northern Hemisphere mid-latitudes: dominant weather regimes and preferred zonal wavenumbers 

      Lembo, Valerio; Fabiano, Federico; Galfi, Vera Melinda; Grand Graversen, Rune; Lucarini, Valerio; Messori, Gabriele (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-07)
      The extratropical meridional energy transport in the atmosphere is fundamentally intermittent in nature, having extremes large enough to affect the net seasonal transport. Here, we investigate how these extreme transports are associated with the dynamics of the atmosphere at multiple spatial scales, from planetary to synoptic. We use the ERA5 reanalysis data to perform a wavenumber decomposition ...

    • Spectral Decomposition and Extremes of Atmospheric Meridional Energy Transport in the Northern Hemisphere Midlatitudes 

      Lembo, Valerio; Messori, Gabrielle; Graversen, Rune; Lucarini, Valerio (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-03)
      The atmospheric meridional energy transport in the Northern Hemisphere midlatitudes is mainly accomplished by planetary and synoptic waves. A decomposition into wave components highlights the strong seasonal dependence of the transport, with both the total transport and the contributions from planetary and synoptic waves peaking in winter. In both winter and summer months, poleward transport extremes ...