English  |  正體中文  |  简体中文  |  Items with full text/Total items : 67621/67621 (100%)
Visitors : 23089565      Online Users : 117
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/987654321/50456


    Title: Propagating planetary wave coupling in SABER MLT temperatures and GPS TEC during the 2005/2006 austral summer
    Authors: Chang,LC;Liu,JY;Palo,SE
    Contributors: 太空科學研究所
    Keywords: ASYNOPTIC SATELLITE-OBSERVATIONS;EQUATORIAL MESOSPHERE;LOWER THERMOSPHERE;SAMPLING THEORY;KELVIN WAVE;2-DAY WAVE;ATMOSPHERE;WIND;RESOLUTION;LATITUDES
    Date: 2011
    Issue Date: 2012-03-27 17:32:26 (UTC+8)
    Publisher: 國立中央大學
    Abstract: It has long been suggested that the existence of ionospheric oscillations at multiday periodicities can be explained in part, by the penetration of propagating planetary waves into the E region ionospheric dynamo. In this study, global-scale observations of mesosphere and lower thermosphere (MLT) temperatures from TIMED/SABER and total electron content (TEC) results from GPS derived global ionosphere maps are examined for signs of potential upward planetary wave coupling, around the time of an intense quasi 2 day wave (QTDW) event in the MLT region during 1 December 2005 to 28 February 2006. The periodicity and zonal wave number of westward 3 (W3) and westward 2 (W2) QTDWs are resolved continuously in equatorial ionization anomaly (EIA) latitude TEC values at the same times as corresponding QTDW events in SABER temperatures. Additionally, signatures of an E1 ultrafast Kelvin (UFK) or inertia-gravity wave with period around 60 h (2.5 d) are also resolved. While the TECs also show signs of geomagnetic activity, the coherence and consistency of the aforementioned disturbances between the MLT and the ionosphere suggest that they cannot be attributed to geomagnetic forcing. We find that such propagating planetary waves can produce transient variability of the EIAs, though the effectiveness and hemispheric symmetry of such coupling also depends on factors other than the maximum planetary wave amplitude in the MLT.
    Relation: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
    Appears in Collections:[太空科學研究所 ] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML244View/Open


    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