降雨对SAR风场反演的影响及校正

余水; 杨劲松; 贺双颜; 贺治国; 任林; 郑罡

doi:10.3969/j.issn.0253-4193.2017.09.004

降雨对SAR风场反演的影响及校正

doi: 10.3969/j.issn.0253-4193.2017.09.004

1.
浙江大学海洋学院, 浙江舟山 316021;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.
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
3.
浙江大学海洋学院, 浙江舟山 316021

基金项目: 国家自然科学基金（41321004，41306191，41306192，41406203，41676167）；国家863项目（2013AA09A505）；中国科技部-欧洲空间局合作"龙计划"四期项目（32249）；全球变化与海气相互作用专项国际合作项目（GASI-IPOVAI-04）。

计量
- 文章访问数: 896
- HTML全文浏览量: 30
- PDF下载量: 526
- 被引次数: 0
出版历程
- 收稿日期: 2016-10-26
- 修回日期: 2017-02-23

The correction of rain effect on SAR wind field retrieval

1.
Ocean College, Zhejiang University, Zhoushan 316021, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
3.
Ocean College, Zhejiang University, Zhoushan 316021, China

摘要

摘要: 合成孔径雷达（Synthetic Aperture Radar， SAR）在风场反演中发挥着重要的作用，但由于受到降雨的影响，海面风场的反演精度会随之下降。本文利用Radarsat-2 SAR观测数据，准同步降雨数据和再分析风场资料对2014年台风"威马逊"外围风场受降雨影响的情况进行了分析，建立了雨致海表阻尼后向散射系数受降雨强度，入射角等因素影响的拟合模型，并对降雨引起的信号衰减，后向体散射进行了评估。实验发现雨致海表面阻尼作用抑制风致海面波的影响十分明显，且降雨造成的信号衰减随降雨强度和入射角的增大而增加，雨滴产生的后向体散射和雨致海表阻尼作用造成的后向散射系数变化随降雨强度的增大而增加，随入射角的增大而减小。实例表明本文建立的模型能够有效改善降雨条件下SAR风场的反演精度。
- SAR /
- 风场反演 /
- 降雨影响 /
- 校正
Abstract: Synthetic Aperture Radar (SAR) plays an important role in typhoon wind field retrieval, but due to the influence of the rainfall on the radar signal, the inversion precision of sea surface wind field will decline. In this paper, we analysis the rain effect to the 2014 typhoon Rammasun by using RADARSAT-2 SAR data, quasi-synchronous rainfall data and reanalysis data. The damping from rainfall to the water surface is simulated by rain rate and incident angle. Rain-induced attenuation and raindrop volumetric scattering was also evaluated. It is found that the rain effect to the sea surface perturbation is much complex than the other two factors, and the signal attenuation increases with the increases of rainfall and incident angle, raindrop volumetric scattering and rain-induced sea surface damping increase with the increase of rainfall, but with the decrease of incident angle. The experimental results also indicate that the model can improve the SAR wind measurement accuracy under rainfall conditions.
- SAR /
- wind field retrieval /
- rain effect /
- correction

HTML全文

参考文献(29)

陈艳玲, 黄珹, 丁晓利, 等. ERS-2 SAR反演海洋风矢量的研究[J]. 地球物理学报, 2007, 50(6):1688-1694. Chen Yanling, Huang Cheng, Ding Xiaoli, et al. Study on ocean wind vector retrieval from ERS-2 SAR image[J]. Chinese Journal of Geophysics, 2007, 50(6):1688-1694.

胡潭高, 张登荣, 王洁, 等. 基于遥感卫星资料的台风监测技术研究进展[J]. 遥感技术与应用, 2013, 28(6):994-999. Hu Tangao, Zhang Dengrong, Wang Jie, et al. Review of typhoon monitoring technology based on remote sensing satellite data[J]. Remote Sensing Technology and Application, 2013, 28(6):994-999.

Jin Y, Xu F. Polarimetric scattering and SAR information retrieval[M]. Hoboken, New Jersey:John Wiley & Sons, 2013.

Vachon P W, Dobson F W. Validation of wind vector retrieval from ERS-1 SAR images over the ocean[J]. The Global Atmosphere & Ocean System, 1996, 5(2):177-187.

杨劲松, 黄韦艮, 周长宝, 等. 合成孔径雷达图像的近岸海面风场反演[J]. 遥感学报, 2001, 5(1):13-16. Yang Jinsong, Huang Weigen, Zhou Changbao, et al. Coastal ocean surface wind retrieval from SAR imagery[J]. Journal of Remote Sensing, 2001, 5(1):13-16.

Zhang Dengrong, Zhang Yuzhou, Hu Tangao, et al. A comparison of HY-2 and QuikSCAT vector wind products for tropical cyclone track and intensity development monitoring[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(8):1365-1369.

Jin Y, Xu F. Inversions from Polarimetric SAR Images[C]. Piscataway, New Jersey:Wiley-IEEE Press, 2013:215-233.

杨劲松. 合成孔径雷达海面风场,海浪和内波遥感技术[D].青岛:中国海洋大学,2001. Yang Jinsong. Synthetic aperture radar sea surface wind, waves and internal wave remote sensing technolgy[D]. Qingdao:Ocean University of China, 2001.

Zhang B, Perrie W, Vachon P W, et al. Ocean vector winds retrieval from C-band fully polarimetric SAR measurements[J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(11):4252-4261.

Zhang B, Perrie W. Recent progress on high wind-speed retrieval from multi-polarization SAR imagery:a review[J]. International Journal of Remote Sensing, 2014, 35(11/12):4031-4045.

Powell M D, Vickery P J, Reinhold T A. Reduced drag coefficient for high wind speeds in tropical cyclones[J]. Nature, 2003, 422(6929):279-283.

Tournadre J, Quilfen Y. Impact of rain cell on scatterometer data:1. Theory and modeling[J]. Journal of Geophysical Research Oceans, 2003, 108(C7):352-367.

邹巨洪, 林明森, 潘德炉, 等. QuikSCAT在台风监测中的应用[J]. 遥感学报, 2009, 13(5):840-853. Zou Juhong, Lin Mingsen, Pan Delu, et al. Applications of QuikSCAT in typhoon observation and tracking[J]. Journal of Remote Sensing, 2009, 13(5):840-853.

Zhang B, Perrie W. Cross-polarized synthetic aperture radar:a new potential measurement technique for hurricanes[J]. Bulletin of the American Meteorological Society, 2012, 93(4):531-541.

Nie C, Long D G. A C-band scatterometer simultaneous wind/rain retrieval method[J]. IEEE Transactions on Geoscience and Remote Sensing, 2008, 46(11):3618-3631.

Xu F, Li X, Wang P, et al. A backscattering model of rainfall over rough sea surface for synthetic aperture radar[J]. IEEE Transactions on Geoscience and Remote Sensing, 2015, 53(6):3042-3054.

Nie C, Long D G. A C-band wind/rain backscatter model[J]. IEEE Transactions on Geoscience and Remote Sensing, 2007, 45(3):621-631.

周旋,杨晓峰,李紫薇,等. 降雨对C波段散射计测风的影响及其校正[J]. 物理学报, 2012, 61(14):532-542. Zhou Xuan, Yang Xiaofeng, Li Ziwei, et al. Rain effect on C-band scatterometer wind measurement and its correction[J]. Acta Physica Sinica, 2012, 61(14):532-542.

曲秀凤, 种劲松, 吴秀清, 等. 基于SAR的海洋降雨信号研究[J]. 遥测遥控, 2009, 30(4):50-55. Qu Xiufeng, Zhong Jinsong, Wu Xiuqing, et al. Investigation of rainfall signal over the ocean based on SAR[J]. Journal of Telemetry, Tracking and Command, 2009, 30(4):50-55.

Lemaire D, Bliven L F, Craeye C, et al. Drop size effects on rain-generated ring-waves with a view to remote sensing applications[J]. International Journal of Remote Sensing, 2002, 23(12):2345-2357.

Craeye C, Sobieski P W, Bliven L F. Radar signature of the sea surface perturbed by rain[C]//Geoscience and Remote Sensing Symposium, 1999. IGARSS'99 Proceedings. IEEE 1999 International. IEEE, 1999, 1:206-208.

Bliven L F, Sobieski P W, Craeye C. Rain generated ring-waves:measurements and modelling for remote sensing[J]. International Journal of Remote Sensing, 1997, 18(1):221-228.

Alpers W, Melsheimer C. Rainfall[J]. Synthetic Aperture Radar Marine Users, Manual, US Dept. of Commerce, NOAA. 2004:355-371.

Melsheimer C, Alpers W, Gade M. Simultaneous observations of rain cells over the ocean by the synthetic aperture radar aboard the ERS-1/2 satellites and by weather radars[C]//Geoscience and Remote Sensing Symposium, 1999. IGARSS'99 Proceedings. IEEE 1999 International. IEEE, 1999, 1:194-196.

Morena L C, James K V, Beck J. An introduction to the RADARSAT-2 mission[J]. Canadian Journal of Remote Sensing, 2004, 30(3):221-234.

Cheng Y H, Huang S J, Liu A K, et al. Observation of typhoon eyes on the sea surface using multi-sensors[J]. Remote Sensing of Environment, 2012, 123(6):434-442.

Pan Y, Liu A K, He S, et al. Comparison of typhoon locations over ocean surface observed by various satellite sensors[J]. Remote Sensing, 2013, 5(7):3172-3189.

He S, Liu A K, Yu C K, et al. Rainband feature tracking for wind speeds around typhoon eyes using multiple sensors[J]. International Journal of Remote Sensing, 2016, 37(9):2016-2031.

周旋,叶小敏,于暘,等. 基于GNSS-R的海面风速探测技术研究[J]. 电子与信息学报, 2013, 35(7):1575-1580. Zhou Xuan, Ye Xiaomin, Yu Yang, et al. Sea surface wind speed measurement using GNSS reflection signal[J]. Journal of Electronics & Information Technology, 2013, 35(7):1575-1580.

施引文献

资源附件(0)

访问统计