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遥感技术与应用  2010, Vol. 25 Issue (6): 873-876    DOI: 10.11873/j.issn.1004-0323.2010.6.873
研究与应用     
NCEP/QSCAT混合风向用于SAR图像反演高分辨率海面风速
范开国1,2,黄韦艮1,常俊芳1,林珲2,顾艳镇2
(1.国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,浙江 杭州310012;
2.香港中文大学太空与地球信息科学研究所,香港)
Sea Surface Wind Speeds Retrieval by SAR Combing with the NCEP/QSCAT Blended Wind Directions
FAN Kai-guo1,2,HUANG Wei-gen1,CHANG Jun-fang1,LIN Hui2,GU Yan-zhen2
(1.State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China;2.Institute of Space and Earth InformationScience,The Chinese University of Hong Kong,Hong Kong,China)
 全文: PDF(2587 KB)  
摘要:

SAR图像反演高分辨率海面风速在微波遥感领域具有重要的意义。利用 SAR图像和NCEP/QSCAT混合风向数据,对NCEP/QSCAT混合风向用于SAR图像反演高分辨率海面风速的方法进行了初步研究。以2005年12月6日一景ENVISat ASAR图像为例,反演了大范围、高分辨率海面风速。海面风速的反演结果与NCEP/QSCAT混合风速、日平均散射计风速的比较结果显示,其均方根误差分别为1.9 m/s、1.6 m/s,二者符合较好,显示了SAR反演高分辨率海面风速的能力与SAR海面风场业务化应用的前景。

关键词: NCEP/QSCATSAR海面风速    
Abstract:

The high resolution sea surface wind speeds retrieval from SAR image is of great significance in the field of microwave remote sensing.A preliminary study about the high resolution sea surface wind speeds retrieval from SAR image combing with the NCEP/QSCAT blended sea surface wind directions was introduced.As a case study,this method was applied on one scene ENVISat ASAR imaging on Dec.6,2005.The retrieved wind speeds are compared with those from both the NCEP/QSCAT blended sea surface wind speeds and daily averaged Quick Scatter meter sea surface wind speeds.The results gave that they are in good agreement.The root\|mean\|square errors of wind speed are 1.9 m/s and 1.6 m/s respectively,which show that SAR has the ability of retrieving the high resolution sea surface wind speeds,and give the orientation of SAR sea surface wind field business application in future.

Key words: NCEP/QSCAT    SAR    Sea surface wind speed
收稿日期: 2009-11-06 出版日期: 2011-01-27
:  TP 721.2  
通讯作者: 黄韦艮(1955-),男,博士,研究员,博士研究生导师,主要从事海洋遥感技术与应用研究。Email:Wghuang@mail.hz.zj.zn。     E-mail: van.fkg@tom.com
作者简介: 范开国(1981-),男,博士后,主要从事卫星海洋、大气遥感方面的研究.Email:van.fkg@tom.com。
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引用本文:

范开国, 黄韦艮, 常俊芳, 林珲, 顾艳镇. NCEP/QSCAT混合风向用于SAR图像反演高分辨率海面风速[J]. 遥感技术与应用, 2010, 25(6): 873-876.

FAN Kai-Guo, HUANG Wei-Gen, CHANG Jun-Fang, LIN Hui, GU Yan-Zhen. Sea Surface Wind Speeds Retrieval by SAR Combing with the NCEP/QSCAT Blended Wind Directions. Remote Sensing Technology and Application, 2010, 25(6): 873-876.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2010.6.873        http://www.rsta.ac.cn/CN/Y2010/V25/I6/873

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