首页期刊介绍通知公告编 委 会投稿须知电子期刊广告合作联系我们在线留言
 
基于ERA-interim再分析资料的ASCAT风场产品在南海的精度评估及南海月平均风场特征分析
作者:张凯峰  项杰  杨波  周成钧 
单位:解放军理工大学气象海洋学院, 江苏 南京 211101
关键词:ASCAT L2B L3 ERA-interim 海面风场 
分类号:P732
出版年·卷·期(页码):2017·34·第二期(27-36)
摘要:
利用ERA-interim 再分析资料作为参照,统计分析了南海季风盛行时ASCAT散射计L2B和L3 风场产品的误差特征。结果表明:季风盛行时,南海中南部大部分海域,ASCAT两种散射计风场产品精度较好,与设计精度一致,风速标准偏差小于2 m/s,偏差小于1 m/s,风向标准偏差小于20°,偏差小于5°,ASCATL2B相对L3 产品表现更好,西南风盛行时,风场相关性强,在0.8 以上,ASCAT与ERA-interim 一致性好,东北风盛行时,风场也具有强相关,不过在南海东部海域,风向相关性较弱,小于0.7。另外,利用ASCAT L2B分析了南海月平均风场分布特征,结果表明:南海季风盛行时,存在两个风速大值中心,分别位于南海中南部和台湾海峡及巴士海峡一带,其位置和大小随时间而变化。
Based on the ERA-Interim surface wind analysis generated at the European Center for Medium Range Weather forecasts, the errors characteristics of two ASCAT wind field products Level2B and Level3 are analyzed when the monsoon is prevailing in the South China Sea. The results show that:ASCAT wind field products perform well which meet the accuracy requirement in the most areas of the South China Sea. The standard deviation of ASCAT wind speed and direction is less than 2m/s and 20°, and the bias is less than 1m/s and 5°, respectively, while the ASCAT L2B is better. When the southwest is prevailing, the ASCAT wind field have a good consistency and large correlation which is higher than 0.8 with the ERA-interim, and when it is northeast, the correlation is also good, while in the east of the South China Sea, the correlation rate is less than 0.7. Besides, the ASCAT L2B are used to the climatic characteristics of the South China Sea. It is shown that there are two average wind speed value centers: one is located at the central south 108°E,10°N of South China Sea, while the other is near the Taiwan and Bashi Strait whose site and intensity change with time.
参考文献:
[1] 尹尽勇, 徐晶, 曹越男,等. 我国海洋气象预报业务现状与发展[J]. 气象科技进展, 2012, 2(6): 17-26.
[2] 何宜军, 陈戈, 郭佩芳,等. 高度计海洋遥感研究与应用[M]. 北京: 科学出版社, 2002: 111.
[3] 李艳兵, 黄思训, 翟景秋. 卫星反演风场进展概述[J]. 气象科学, 2009, 29(2): 277-284.
[4] 赵大军, 于玉斌, 李莹.“0814”号强台风发展维持的环境场分析[J]. 气象科学, 2011, 31(5): 591-597.
[5] Liu W T. Progress in Scatterometer Application [J]. Journal of Oceanography, 2002, 58(1): 121-136.
[6] 林明森, 邹巨洪, 解学通,等. HY-2A 微波散射计风场反演算法[J]. 中国工程科学, 2013,15(7), 68-74.
[7] Hoffman R N, Leidner S M. An Introduction to the Near- Real-Time QuikSCAT Data [J]. Weather and Forecasting, 2005, 20 (4): 476-493.
[8] Singh R, Kumar P, Pal P K. Assimilation of Oceansat-2- Scatterometer-Derived Surface Winds in the Weather Research and Forecasting Model [J]. IEEE Transactions on Geoscience and Remote sensing, 2012, 50(4): 1015-1021.
[9] Weissman D E, Stiles B W, Hristova-Veleva S M, et al. Challenges to Satellite Sensors of Ocean Winds: Addressing Precipitation Effects [J]. Journal of Atmospheric and Oceanic Technology, 2012, 29(3): 356-374.
[10] ASCAT Wind Product User Manual.Holland: Ocean and Sea Ice SAF,2012,Version 1.12:1-27.
[11] 杨晓君, 张增海. ASCAT洋面风资料在中国北方海域的真实性检验[J]. 海洋预报, 2014, 31(5): 8-12.
[12] 张增海, 曹越男, 刘涛, 等. ASCAT散射计风场在我国近海的初步检验与应用[J]. 气象, 2014, 40(4): 473-481.
[13] Bentamy A, Croize-Fillon D, Perigaud C. Characterization of ASCAT Measurements Based on Buoy and QuikSCAT Wind Vector Observations [J]. Ocean Science, 2008, 4(4): 265-274.
[14] Verspeek J, Stoffelen A, Portabella M, et al. Validation and Calibration of ASCAT Using CMOD5.n[J]. IEEE Transactions on Geoscience and Remote Sensing, 2010, 48(1): 386-395.
[15] 刘春霞, 何溪澄. QuikSCAT散射计矢量风统计特征及南海大风遥感分析[J]. 热带气象学报, 2003, 19(S1): 107-117.
[16] Berrisford P, Dee D, Fielding K, et al. The ERA-interim archive[J].2009.
[17] Dee D P, Uppala S M, Simmons A J, et al. The Era-Interim Reanalysis: Configuration and Performance of the Data Assimilation System [J]. Quarterly Journal of the Royal Meteorological Society, 2011, 137(656): 553-597
[18] Zeng L X, Levy G. Space and Time Aliasing Structure in Monthly Mean Polar-Orbiting Satellite Data [J]. Journal of Geophysical Research Atmospheres, 1995, 100(D3): 5133-5142.
[19] 刘宇昕, 张毅, 王兆徽, 等. 基于ASCAT 微波散射计风场与 NCEP 再分析风场的全球海洋表面混合风场[J]. 海洋预报, 2014, 31(3): 10-18.
[20] 冯倩. 卫星散射计数据处理及其应用[D]. 青岛: 青岛海洋大学, 2001.
[21] 张德天, 郑崇伟, 石岭琳, 等. 基于QuikSCAT/NCEP 风场的 1999-2009 年中国海表风场研究[J]. 海洋预报, 2011, 28(4): 58-64.
[22] 王慧鹏, 王春明, 项杰, 等. QuikSCAT卫星散射计矢量风检验及南海月平均风场特征分析[J]. 气象科学, 2014, 34(1): 54-59.
服务与反馈:
文章下载】【发表评论】【查看评论】【加入收藏
 
 海洋预报编辑部 地址:北京海淀大慧寺路8号
电话:010-62105776
投稿网址:http://www.hyyb.org.cn
邮箱:bjb@nmefc.cn