English  |  正體中文  |  简体中文  |  Items with full text/Total items : 66984/66984 (100%)
Visitors : 22942335      Online Users : 417
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/987654321/27834


    Title: Evidence for carbonyl sulfide (OCS) conversion to CO in the lower atmosphere of Venus
    Authors: Yung,YL;Liang,MC;Jiang,X;Shia,RL;Lee,C;Bezard,B;Marcq,E
    Contributors: 天文研究所
    Keywords: LATITUDINAL VARIATIONS;SULFUR;MODEL;PHOTOCHEMISTRY;STRATOSPHERE;CLOUDS;SPECTROSCOPY;ABSORPTION;MESOSPHERE;CHEMISTRY
    Date: 2009
    Issue Date: 2010-06-29 19:34:34 (UTC+8)
    Publisher: 中央大學
    Abstract: The chemical regimes in the atmosphere of Venus vary from photochemistry in the middle atmosphere to thermal equilibrium chemistry in the lower atmosphere and the surface. Many chemical cycles have been proposed, but few details about these cycles are fully verified by comparison between observations and modeling. Recent high-quality data of carbonyl sulfide (OCS) and CO from ground-based and Venus Express observations provide a unique opportunity to test our understanding of chemistry and transport in the lower atmosphere of Venus. The spatial distributions of OCS and CO in the atmosphere reflect a sensitive balance between chemistry and transport. On the basis of our updated photochemical model and winds from Lee et al.'s (2007) general circulation model, we study the chemistry and transport in a simplified two-dimensional chemistry-transport model. OCS is produced by heterogeneous reactions on the surface; the middle atmosphere is a net sink for OCS. The combination of data and modeling provides strong evidence for the loss of OCS by conversion to CO. The detailed chemical mechanism is currently unknown, although a number of speculations have been proposed. The sensitivity of the distributions of OCS and CO to model parameters is reported.
    Relation: JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
    Appears in Collections:[天文研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML593View/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