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Discrete Spectra and Continuous Spectrum of the Barotropic Quasi-Geostrophic Model-A Calculation of Meteorological Data


doi: 10.1007/s00376-999-0026-z

  • Atmospheric disturbances at 300 hpa are decomposed into normal modes, referred as discrete-spectrum disturbances which can propagate freely in the observed zonal mean flow, and non-modal transient disturbances, referred as continuous-spectrum disturbances which are continuously sheared and eventually absorbed by the zonal flow. It is shown that normal modes represent only a small fraction of the observed atmospheric disturbances, while continuous-spec-trum disturbances represent the majority of observed disturbances, even when the basic flow is unstable. Daily variabilities of the observed continuous-spectrum disturbances are presented. They are shown to follow the results of wave-packet theory. Calculations suggest that there are abundant sources to excite continuous-spectrum disturbances in the atmosphere.
  • [1] Zeng Qingcun, Zhang Minghua, 2000: Wave-Mean Flow Interaction: the Role of Continuous-Spectrum Disturbances, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 1-17.  doi: 10.1007/s00376-000-0039-0
    [2] Mozheng WEI, Jorgen S. FREDERIKSEN, 2005: Finite-Time Normal Mode Disturbances and Error Growth During Southern Hemisphere Blocking, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 69-89.  doi: 10.1007/BF02930871
    [3] Ren Shuzhan, 1994: Symmetric Stability of Rotation and Boussinesq Fluid in Bounded Domain by Using Normal Mode Method, ADVANCES IN ATMOSPHERIC SCIENCES, 11, 291-295.  doi: 10.1007/BF02658148
    [4] Ren Shuzhan, 1991: New Approach to Study the Evolution of Rossby Wave Packet, ADVANCES IN ATMOSPHERIC SCIENCES, 8, 79-86.  doi: 10.1007/BF02657366
    [5] Liu Shida, Liu Shikuo, Xin Guojun, Liang Fuming, 1994: The Theoretical Model of Atmospheric Turbulence Spectrum in Surface Layer, ADVANCES IN ATMOSPHERIC SCIENCES, 11, 408-414.  doi: 10.1007/BF02658160
    [6] Lu Peisheng, 1992: The Structure and Propagation of Stationary Planetary Wave Packet in the Barotropic Atmosphere, ADVANCES IN ATMOSPHERIC SCIENCES, 9, 157-166.  doi: 10.1007/BF02657506
    [7] Ruiqiang DING, Jianping LI, Baosheng LI, 2017: Determining the Spectrum of the Nonlinear Local Lyapunov Exponents in a Multidimensional Chaotic System, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 1027-1034.  doi: 10.1007/s00376-017-7011-8
    [8] Sung-Ho SUH, Eun-Ho CHOI, Hong-Il KIM, Woonseon JUNG, 2023: Possibility of Solid Hydrometeor Growth Zone Identification Using Radar Spectrum Width, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 317-332.  doi: 10.1007/s00376-022-1472-0
    [9] A. Mary Selvam, 1993: A Universal Spectrum for Interannual Variability of Monsoon Rainfall over India, ADVANCES IN ATMOSPHERIC SCIENCES, 10, 221-226.  doi: 10.1007/BF02919144
    [10] A.M.Selvam, M.Radhamani, 1994: Signatures of a Universal Spectrum for Nonlinear Variability in Daily Columnar Total Ozone Content, ADVANCES IN ATMOSPHERIC SCIENCES, 11, 335-342.  doi: 10.1007/BF02658153
    [11] LIU Weiyi, QIU Jinhuan, 2012: A Parameterized yet Accurate Model of Ozone and Water Vapor Transmittance in the Solar-to-near-infrared Spectrum, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 599-610.  doi: 10.1007/s00376-011-1076-6
    [12] Liu Jianwen, Dong Peiming, 2001: Short-range Climate Prediction Experiment of the Southern Oscillation Index Based on the Singular Spectrum Analysis, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 873-881.
    [13] Zhang Ming, Zhang Lifeng, 2002: Semi-Circle Theorem of Unstable Spectrum Distribution of Heterotropic Perturbation and the Upper Bound Estimation of Its Growth Rate, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 35-44.  doi: 10.1007/s00376-002-0032-x
    [14] Tianshu WANG, Shengjie NIU, Jingjing Lü, Yue ZHOU, 2019: Observational Study on the Supercooled Fog Droplet Spectrum Distribution and Icing Accumulation Mechanism in Lushan, Southeast China, ADVANCES IN ATMOSPHERIC SCIENCES, 36, 29-40.  doi: 10.1007/s00376-018-8017-6
    [15] Jun ZHANG, Jiming SUN, Wei DENG, Wenhao HU, Yongqing WANG, 2023: The Importance of the Shape Parameter in a Bulk Parameterization Scheme to the Evolution of the Cloud Droplet Spectrum during Condensation, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 155-167.  doi: 10.1007/s00376-022-2065-7
    [16] Peipei YU, Chunxiang SHI, Ling YANG, Shuai SHAN, 2020: A New Temperature Channel Selection Method Based on Singular Spectrum Analysis for Retrieving Atmospheric Temperature Profiles from FY-4A/GIIRS, ADVANCES IN ATMOSPHERIC SCIENCES, 37, 735-750.  doi: 10.1007/s00376-020-9249-9
    [17] LIU Yudi, WANG Bin, JI Zhongzhen, 2003: Research on Atmospheric Motion in Horizontal Discrete Grids, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 139-148.  doi: 10.1007/BF03342058
    [18] C. V. Singh, 1998: Relationships between Rainy Days, Mean Daily Intensity and Seasonal Rainfall in Normal, Flood and Drought Years over India, ADVANCES IN ATMOSPHERIC SCIENCES, 15, 424-432.  doi: 10.1007/s00376-998-0012-x
    [19] WU Shu, WU Lixin, LIU Qinyu, Shang-Ping XIE, 2010: Development Processes of the Tropical Pacific Meridional Mode, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 95-99.  doi: 10.1007/s00376-009-8067-x
    [20] Han QIN, Ji NIE, Zhiyong MENG, 2024: A Tri-mode of Mock-Walker Cells, ADVANCES IN ATMOSPHERIC SCIENCES, 41, 671-679.  doi: 10.1007/s00376-023-3032-7

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Manuscript History

Manuscript received: 10 October 1999
Manuscript revised: 10 October 1999
通讯作者: 陈斌, bchen63@163.com
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Discrete Spectra and Continuous Spectrum of the Barotropic Quasi-Geostrophic Model-A Calculation of Meteorological Data

  • 1. Institute for Terrestrial and Planetary Atmospheres, State University of New York at Stony Brook,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080

Abstract: Atmospheric disturbances at 300 hpa are decomposed into normal modes, referred as discrete-spectrum disturbances which can propagate freely in the observed zonal mean flow, and non-modal transient disturbances, referred as continuous-spectrum disturbances which are continuously sheared and eventually absorbed by the zonal flow. It is shown that normal modes represent only a small fraction of the observed atmospheric disturbances, while continuous-spec-trum disturbances represent the majority of observed disturbances, even when the basic flow is unstable. Daily variabilities of the observed continuous-spectrum disturbances are presented. They are shown to follow the results of wave-packet theory. Calculations suggest that there are abundant sources to excite continuous-spectrum disturbances in the atmosphere.

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