English  |  正體中文  |  简体中文  |  Items with full text/Total items : 70585/70585 (100%)
Visitors : 23095181      Online Users : 421
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27458

    Title: Quasi-periodic echoes observed with the Chung-Li VHF radar during the SEEK campaign
    Authors: Pan,CJ;Tsunoda,RT
    Contributors: 太空科學研究所
    Date: 1998
    Issue Date: 2010-06-29 18:39:02 (UTC+8)
    Publisher: 中央大學
    Abstract: The 52-MHz Chung-Li VHF radar, located in Taiwan, was operated during the SEEK (Sporadic-E Experiment over Kyushu) campaign to investigate the so-called quasi-periodic (QP) echoes that occur from nighttime sporadic E (E-s) layers. Highlights of this study are presented in this paper, using measurements made on August 17, 1996, to illustrate the echo characteristics. QP echoes displaying 5 to 10 minute periods were observed throughout this night. A new finding is the occurrence of QP echoes whose striations were almost vertically oriented when plotted using a height-time-intensity (HTI) format. This observation provides the first unambiguous evidence for the existence of steep spatial tilts in E-s layers that are responsible for QP echoes. Other characteristics from three periods during this night are described including striations with positively sloped striations. These characteristics are discussed in light of existing models for QP echoes.
    Appears in Collections:[太空科學研究所 ] 期刊論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明