Experimental research on oil film thickness and its microwave scattering during emulsification

doi:https://doi.org/10.1007/s00343-021-1183-x

	Experimental research on oil film thickness and its microwave scattering during emulsification
	Guo, Jie1,2,3 ; Xu, Chenqi 1,4; Liu, Genwang 5; Zhang, Xi 5; Meng, Junmin 5; Ren, Guangbo 5
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
	2021-09-06
卷号	40 期号:4 页码:1361-1376
关键词	: crude oil emulsifi cation normalized radar cross section (NRCS) moisture content oil film thickness damping ratio
研究领域	理学::海洋科学
DOI	https://doi.org/10.1007/s00343-021-1183-x
英文摘要	Synthetic Aperture Radar (SAR) plays a major role in identifying oil spills on the sea surface. However, obtaining information of oil spill thickness (volume) is still a challenge. Emulsifi cation is an important process aff ecting the thickness and normalized radar cross section (NRCS) of oil film. Experiments of crude oil emulsifi cation with C-band fully-polarized scatterometer were conducted combining airborne hyperspectral imaging spectrometer and 3D laser scanner observation data, to provide experimental parameters and method to support accurate remote sensing monitoring on marine oil spill. It is further proved that through quantitative homogeneous emulsified oil spill experiments, to a certain extent, the NRCS of oil film increased during the emulsifi cation process of crude oil. The backscattering mechanism of crude oil emulsification was explored using a semi-empirical model (SEM); the change of oil film NRCS was modulated by its dielectric constant and surface roughness, in which the dielectric constant showed a dominant effect. The relationship between thickness and NRCS of oil film was studied under two experimental conditions. The differences of NRCS between oil film and adjacent seawater ( σ0) and the damping ratio (DR) were found to have a linear relationship with oil thickness, which were best in the vertical polarization mode (VV) at 45° incident angle during the quantitative crude oil homogeneous emulsifi cation process. In the natural emulsification process of continuous oil spill in which oil film was mixed with both crude oil and emulsified oil, an empirical equation of oil film thickness is preliminarily established. The σ0, DR, and the empirical equation of oil film thickness were applied to the marine continuous oil spill incident on a 19-3 oil platform with spaceborne SAR image and successfully explained the distribution of the relative thickness of the oil film.
收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/31102
专题	中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Guo, Jie
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Guo, Jie,Xu, Chenqi,Liu, Genwang,et al. Experimental research on oil film thickness and its microwave scattering during emulsification[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021,40(4):1361-1376.
APA	Guo, Jie,Xu, Chenqi,Liu, Genwang,Zhang, Xi,Meng, Junmin,&Ren, Guangbo.(2021).Experimental research on oil film thickness and its microwave scattering during emulsification.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,40(4),1361-1376.
MLA	Guo, Jie,et al."Experimental research on oil film thickness and its microwave scattering during emulsification".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 40.4(2021):1361-1376.

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