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Strain Evolution and Instability of an Anticyclonic Eddy From a Laboratory Experiment

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  • معلومة اضافية
    • Contributors:
      Nanjing University (NJU); Southern Marine Science and Engineering Guangdong Laboratory; Second Institute of Oceanography; State Oceanic Administration (SOA); Laboratoire des Écoulements Géophysiques et Industriels Grenoble (LEGI); Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP); Université Grenoble Alpes (UGA); Laboratoire de Météorologie Dynamique (UMR 8539) (LMD); Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X); Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris; École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL); Observatório Oceânico da Madeira (OOM)
    • بيانات النشر:
      HAL CCSD
      Frontiers Media
    • الموضوع:
      2021
    • Collection:
      École des Ponts ParisTech: HAL
    • نبذة مختصرة :
      International audience ; Using the 13 m diameter LEGI-Coriolis rotating platform, the evolution processes of a generated anticyclonic eddy throughout its lifecycle are analyzed. Experimental results have shown that the eddy lasted for approximately 3 T 0 , where T 0 is the rotating period of 90 s. After T = 0.3 T 0 , the eddy enters its mature phase, whereby following this event, eddy intensity slowly decreases from its maximum rotation speed. By T = 2.6 T 0 , the eddy enters a stage of rapid weakening. In its decay period, two underlying mechanisms for this decay have been identified as inertial instability and eddy–eddy interactions.
    • الرقم المعرف:
      10.3389/fmars.2021.645531
    • الدخول الالكتروني :
      https://hal.sorbonne-universite.fr/hal-03284108
      https://hal.sorbonne-universite.fr/hal-03284108v1/document
      https://hal.sorbonne-universite.fr/hal-03284108v1/file/fmars-08-645531.pdf
      https://doi.org/10.3389/fmars.2021.645531
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.558E0074