Connecting large-scale velocity and temperature bursts with small-scale intermittency in stratified turbulence

  title={Connecting large-scale velocity and temperature bursts with small-scale intermittency in stratified turbulence},
  author={Fabio Feraco and Raffaele Marino and Leonardo Primavera and Alain Pumir and Pablo D. Mininni and Duane Rosenberg and Annick Pouquet and Raffaello Foldes and Emmanuel L'eveque and Enrico Camporeale and Silvio Sergio Cerri and Harikrishnan Charuvil Asokan and Jorge Luis Chau and Jean-Pierre Bertoglio and Pietro Salizzoni and Massimo Marro},
  journal={Europhysics Letters},
Non-Gaussian statistics of large-scale fields are routinely observed in data from atmospheric and oceanic campaigns and global models. Recent direct numerical simulations (DNSs) showed that large-scale intermittency in stably stratified flows is due to the emergence of sporadic, extreme events in the form of bursts in the vertical velocity and the temperature. This phenomenon results from the interplay between waves and turbulent motions, affecting mixing. We provide evidence of the enhancement… 
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