Repair wind field in oil contaminated areas with SAR images
文献类型：CNKI期刊论文
| 作者 | Guo J(过杰); He YJ(何宜军); Long X(隆霄); Hou CW(侯查伟); Liu X(刘欣); Meng JM(孟俊敏) |
| 发表日期 | 2015-03-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | wind speed oil spill biogenic slicks normalized radar cross section |
| 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(20.26°) and 0.88 m/s(7.07°),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. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China(No.41176160) ; the “135 Program” of Chinese Academy of Sciences(No.Y455011031) |
| 卷 | v.33期:02页:237-245 |
| 语种 | 英文; |
| 分类号 | X55 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190094]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.SchoolofMarineSciences,NanjingUniversityofInformationScience&Technology 2.YantaiInstituteofCoastalZoneResearch,ChineseAcademyofSciences 3.KeyLaboratoryofCoastalZoneEnvironmentalProcessesandEcologicalRemediation,CAS 4.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofScience 5.KeyLaboratoryofAridClimateChangeandReducingDisasterofGansuProvince,CollegeofAtmosphericSciences,LanzhouUniversity 6.YantaiMarineEnvironmentalMonitoringCentralStation,StateOceanicAdministration(SOA) 7.FirstInstituteofOceanography,StateOceanicAdministration(SOA) |
| 推荐引用方式 GB/T 7714 | Guo J,He YJ,Long X,et al. Repair wind field in oil contaminated areas with SAR images. 2015. |
入库方式： OAI收割
来源：海洋研究所
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