English  |  正體中文  |  简体中文  |  Items with full text/Total items : 65318/65318 (100%)
Visitors : 22017195      Online Users : 208
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/987654321/50323


    Title: Evaluation of surface heat fluxes in Chiayi plain of Taiwan by remotely sensed data
    Authors: Chang,TY;Liou,YA;Lin,CY;Liu,SC;Wang,YC
    Contributors: 大氣物理研究所
    Date: 2010
    Issue Date: 2012-03-27 17:29:17 (UTC+8)
    Publisher: 國立中央大學
    Abstract: Surface energy processes have an essential role in regional weather, climate and hydrosphere cycles, as well in regulating urban heat redistribution. The Chiayi urban area of Taiwan and its surrounding agricultural plains are an appropriate complex for studying land surface parameters and energy fluxes of different land cover/land use types in an urban heat island. In this study, three micro-meteorological stations were established over Chiayi Plain to collect in situ reference observations from 2006. In order to properly characterize the surface heat fluxes over a regional scale by point measurement, Moderate Resolution Imaging Spectroradiometer (MODIS) satellite images and images acquired by a high resolution airborne campaign in conjunction with meteorological data were used to estimate the surface heat fluxes over a large area. The analytical results indicated that surface heat fluxes determined from both airborne and satellite images were feasible for estimating surface heat flux. The correlation coefficient of surface heat fluxes with in situ corresponding observations exceeded 0.80. On the other hand, satellite-observed surface skin temperature and land surface energy fluxes were the core factors analysed in different land cover types. The urban surface was rather dry as half of net radiation is converted to sensible heat flux for heating the surface, whereas over 90% net radiation is converted to latent heat flux at wet surfaces such as evergreen broadleaf or water. Surface heat flux was also proven to be an indicator of the magnitude of urban heat island effect and the findings of this study encouraged further use of remotely sensed imagery for assessing the urban heat island effect.
    Relation: INTERNATIONAL JOURNAL OF REMOTE SENSING
    Appears in Collections:[大氣物理研究所 ] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML328View/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