Using the concept of the Dynamic State Index for a scale-dependent analysis of atmospheric blocking
作者: Annette MüllerPeter Névir
刊名: Meteorologische Zeitschrift, 2019, Vol.28 (6), pp.487-498
来源数据库: Schweizerbart Journal
DOI: 10.1127/metz/2019/0963
关键词: Dynamic State IndexAtmospheric blockingQuasi-geostrophic theoryRossby-Haurwitz waveBarotropic vorticity equation
英文摘要: The present study investigates the phenomenon of atmospheric blocking using a cascade of Dynamic State Indices. The different DSI variants signalize model dependent aspects of atmospheric blockings, which allows for a scale-dependent analysis of the corresponding flow pattern. Starting from the primitive equations, approximations lead to the reduced equations of the quasi-geostrophic model and the further approximated barotropic Rossby model. For each model a corresponding Dynamic State Index can be derived. All DSI variants underlie the same concept, such that the three variants capture the stationary and adiabatic state as well as their local deviations. The DSI variants are investigated in the framework of a case study of the atmospheric blocking phenomenon over the European part of...
全文获取路径: Schweizerbart  (合作)

  • geostrophic 地转的
  • analysis 分析
  • blocking 阻塞
  • vorticity 涡度
  • Rossby wave[气]罗斯比波
  • atmospheric 大气的
  • equation 方程
  • scale 度盘
  • dependent 从属的
  • concept 概念