A dynamical systems characterization of atmospheric jet regimes

Gabriele Messori, Nili Harnik, Erica Madonna, Orli Lachmy, Davide Faranda

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים


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

שפה מקוריתאנגלית
עמודים (מ-עד)233-251
מספר עמודים19
כתב עתEarth System Dynamics
מספר גיליון1
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 26 פבר׳ 2021

הערה ביבליוגרפית

Publisher Copyright:
© 2021 American Society of Mechanical Engineers (ASME). All rights reserved.

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