Vertical Wind Disturbances during a Strong Wind Event Observed by the PANSY Radar at Syowa Station, Antarctica

DOI PDF 被引用文献5件 参考文献25件
  • Yoshihiro Tomikawa
    National Institute of Polar Research and The Graduate University for Advanced Studies (SOKENDAI), Tokyo, Japan
  • Masahiro Nomoto
    The University of Tokyo, Tokyo, Japan
  • Hiroaki Miura
    The University of Tokyo, Tokyo, Japan
  • Masaki Tsutsumi
    National Institute of Polar Research and The Graduate University for Advanced Studies (SOKENDAI), Tokyo, Japan
  • Koji Nishimura
    National Institute of Polar Research and The Graduate University for Advanced Studies (SOKENDAI), Tokyo, Japan
  • Takuji Nakamura
    National Institute of Polar Research and The Graduate University for Advanced Studies (SOKENDAI), Tokyo, Japan
  • Hisao Yamagishi
    National Institute of Polar Research and The Graduate University for Advanced Studies (SOKENDAI), Tokyo, Japan
  • Takashi Yamanouchi
    National Institute of Polar Research and The Graduate University for Advanced Studies (SOKENDAI), Tokyo, Japan
  • Toru Sato
    Kyoto University, Kyoto, Japan
  • Kaoru Sato
    The University of Tokyo, Tokyo, Japan

書誌事項

公開日
2015-05-01
資源種別
journal article
DOI
  • 10.1175/mwr-d-14-00289.1
公開者
American Meteorological Society

この論文をさがす

説明

<jats:title>Abstract</jats:title> <jats:p>Characteristically strong vertical wind disturbances (VWDs) with magnitudes larger than 1 m s−1 were observed in the Antarctic troposphere using a new mesosphere–stratosphere–troposphere (MST) radar called the Program of the Antarctic Syowa MST/incoherent scatter (IS) Radar (PANSY) during 15–19 June 2012 at Syowa Station (69.0°S, 39.6°E). In the same period, two synoptic-scale cyclones approached Syowa Station and caused a strong wind event (SWE) at the surface. The VWDs observed during the SWE at Syowa Station had a nearly standing (i.e., no phase tilt with height) phase structure up to the tropopause and a power spectrum proportional to the − power of frequency. On the other hand, the observed VWDs were not associated with systematic horizontal momentum fluxes. Meteorological fields around Syowa Station during the SWE were successfully simulated using the Nonhydrostatic Icosahedral Atmospheric Model (NICAM). A strong VWD was also simulated at the model grid of 70.0°S, 40.0°E in NICAM, which had a standing phase structure similar to the observed ones. An analysis based on the Froude number showed that the simulated VWD was likely due to a hydraulic jump leeward of the coastal mountain ridge. The Scorer parameter analysis indicated that the observed VWDs at Syowa Station during 16–17 June 2012 were likely due to the hydraulic jump similar to that in NICAM. On the other hand, a possibility of lee waves was also suggested for the VWD observed on 18 June 2012.</jats:p>

収録刊行物

  • Monthly Weather Review

    Monthly Weather Review 143 (5), 1804-1821, 2015-05-01

    American Meteorological Society

被引用文献 (5)*注記

もっと見る

参考文献 (25)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ