A dynamical systems characterization of atmospheric jet regimes

• DOI: 10.5194/esd-12-233-2021
• Publication Date: 2021-02-26T07:11:09Z
• Authors: Gabriele Messori; Nili Harnik; Erica Madonna; Orli Lachmy; Davide Faranda
• Keywords: Jet stream; Polar front

Abstract. Atmospheric jet streams are typically separated into primarily “eddy-driven” (or polar-front) jets and “thermally driven” subtropical) jets. Some regions also display “merged” jets, resulting from the (quasi-)collocation of eddy generation with subtropical jet. The different locations driving mechanisms these arise very underlying result in characteristics. Here, we link current understanding dynamical maintenance mechanisms, mostly arising conceptual or idealized models, to phenomena observed reanalysis data. We specifically focus on developing a unitary analysis framework grounded systems theory, which may be applied both models reanalysis, as well allowing for direct intercomparison. Our results illustrate effectiveness indicators diagnose regimes.