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题名:
Repair wind field in oil contaminated areas with SAR images
作者: Guo Jie(过杰)1; He Yijun2,3; Long Xiao4; Hou Chawei5; Liu Xin1; Meng Junmin6
刊名: CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN号: 0254-4059
出版日期: 2015-03-01
卷号: 33, 期号:2, 页码:525-533
关键词: wind speed ; oil spill ; biogenic slicks ; normalized radar cross section
学科分类: Limnology; Oceanography
DOI: 10.1007/s00343-015-3242-7
产权排序: [Guo Jie; Liu Xin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China; [He Yijun] Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China; [He Yijun] Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China; [Long Xiao] Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climate Change & Reducing Disaster G, Lanzhou 730000, Peoples R China; [Hou Chawei] SOA, Yantai Marine Environm Monitoring Cent Stn, Yantai 264006, Peoples R China; [Meng Junmin] SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China
通讯作者: Guo, J (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China. jguo@yic.ac.cn ; mengjm@fio.org.cn
作者部门: 海岸带信息集成与综合管理实验室
中文摘要: In this paper, we compared the normalized radar cross section in the cases of oil spill, biogenic slicks, and clean sea areas with image samples made from 11-pixel NRCS average, and determined their thresholds of the NRCS of the synthetic aperture radar. The results show that the thresholds of oil and biogenic slicks exhibit good consistency with the corresponding synthetic aperture radar images. In addition, we used the normalized radar cross section of clean water from adjacent patches of oil or biogenic slicks areas to replace that of oil or biogenic slicks areas, and retrieve wind field by CMOD5.n and compare wind velocity mending of oil and biogenic slicks areas with Weather Research and Forecasting modeled data, from which the root mean squares of wind speed (wind direction) inversion are 0.89 m/s (20.26A degrees) and 0.88 m/s (7.07A degrees), respectively. Therefore, after the occurrence of oil spill or biogenic slicks, the real wind field could be repaired using the method we introduced in this paper. We believe that this method could improve the accuracy in assessment of a real wind field on medium and small scales at sea, and enhance effectively the monitoring works on similar oil or biogenic slicks incidents at sea surface.
英文摘要: In this paper, we compared the normalized radar cross section in the cases of oil spill, biogenic slicks, and clean sea areas with image samples made from 11-pixel NRCS average, and determined their thresholds of the NRCS of the synthetic aperture radar. The results show that the thresholds of oil and biogenic slicks exhibit good consistency with the corresponding synthetic aperture radar images. In addition, we used the normalized radar cross section of clean water from adjacent patches of oil or biogenic slicks areas to replace that of oil or biogenic slicks areas, and retrieve wind field by CMOD5.n and compare wind velocity mending of oil and biogenic slicks areas with Weather Research and Forecasting modeled data, from which the root mean squares of wind speed (wind direction) inversion are 0.89 m/s (20.26A degrees) and 0.88 m/s (7.07A degrees), respectively. Therefore, after the occurrence of oil spill or biogenic slicks, the real wind field could be repaired using the method we introduced in this paper. We believe that this method could improve the accuracy in assessment of a real wind field on medium and small scales at sea, and enhance effectively the monitoring works on similar oil or biogenic slicks incidents at sea surface.
研究领域[WOS]: Marine & Freshwater Biology ; Oceanography
项目资助者: Marine & Freshwater Biology ; Oceanography
关键词[WOS]: SPILL DETECTION
文章类型: Article
收录类别: SCI
语种: 英语
WOS记录号: WOS:000351156800026
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/8589
Appears in Collections:海岸带信息集成与综合管理实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
4.Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climate Change & Reducing Disaster G, Lanzhou 730000, Peoples R China
5.SOA, Yantai Marine Environm Monitoring Cent Stn, Yantai 264006, Peoples R China
6.SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China

Recommended Citation:
Guo Jie,He Yijun,Long Xiao,et al. Repair wind field in oil contaminated areas with SAR images[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2015,33(2):525-533.
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