主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报

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利用静止卫星窗区红外亮温反演晴空区风场的初步研究

郭晓军1,2;王振会1,2;刘畅1,2;李峰3   

  1. 1. 南京信息工程大学气象灾害省部共建教育部重点实验室,江苏 南京 210044;2. 南京信息工程大学大气物理学院,江苏 南京 210044;3. 山东省气象局气候中心,山东 济南 250031
  • 收稿日期:2010-03-08 修回日期:2010-05-11 出版日期:2010-06-29 发布日期:2010-06-29

A preliminary study on wind field in clear sky region based on infrared brightness temperature of geostationary satellite image

GUO Xiao-jun1,2;WANG Zhen-hui1,2;LIU Chang1,2;LI Feng3   

  1. 1. Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology, Nanjing 210044, China;2. School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China;3. Climate Center of Shandong Provincial Meteorological Bureau, Ji’nan 250031, China
  • Received:2010-03-08 Revised:2010-05-11 Online:2010-06-29 Published:2010-06-29

摘要: 云导风反演明显的局限是在晴空区无法获取风场。为克服这种局限,提出利用静止卫星红外图像资料反演晴空区风场的方法—时间序列差值法,利用LOWTRAN7对其进行可行性分析,并应用云导风实验系统CWIS进行晴空区导风实验。结果表明:实验结果与NCEP资料低空风场有很好的一致性。因此,在传统的“云导风”基础上,增加晴空区卫星导风,可为卫星遥感资料在台风、梅雨和强对流等天气系统分析预报中的定量应用提供更多的卫星风矢。

关键词: 静止卫星红外图像, 晴空区导风, 时间序列差值法

Abstract: The lacking wind field data in clear sky regions is the obvious limitation of deriving cloud motion wind. Inversion method of wind field under clear sky was brought forward based on infrared image of geostationary satellite in order to overcome the limitation. This method was called as temporal sequence difference method. The feasibility was analyzed by LOWTRAN7. Wind guide of clear sky regions was tested by cloud motion wind inferring system (CWIS) developed by Nanjing University of Information Science and Technology. The results indicate that the wind field based on wind guide of clear sky regions is consistent with that in lower level based on NCEP data. Motion wind deriving satellite of clear sky regions is added into remote sensing information besides traditional cloud motion wind, which could provide more satellite wind vectors data for weather forecast, especially for typhoon, Meiyu rain and strong convection weather etc..

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