其他题名Identification of crude oil and emulsified crude oil based on microwave scattering experiment
许晨琪1,4; 过杰1,2,3
; 杨启霞5; 张晰6; 刘根旺6; 张彦敏7发表期刊海洋科学
ISSN1000-3096
2021
卷号45期号:4页码:13-21
关键词乳化原油识别含水率后向散射系数阻尼比
研究领域Oceanography
英文摘要The leaked of crude oil will form emulsions of different concentrations in the process of weathering and migration, which poses a serious threat to the marine ecological environment. Synthetic aperture radar (SAR) plays a major role in the observation of the extent of oil spills on the sea surface which is not affected by rain and clouds and has the advantage of day and night monitoring. However, there are some deficiencies in the identification of emulsified crude oil still exist. In this paper, the natural emulsification of crude oil was observed by C-band full-polarization microwave scatterometer, emulsification process of crude oil simulated by manually prepared oil samples with different moisture content was also observed to study the change of the normalized radar cross section (N_(RCS)). The experimental results show that N_(RCS) of emulsified crude oil is higher than that of crude oil, and the higher the emulsification degree is, the higher the N_(RCS) of oil film is. N_(RCS) differences between oil and water (△sigma~0) and damping ratio (D_R) can identify emulsified and non-emulsified crude oil, reflect the change of the degree of oil film emulsification, and in VV polarization is the best.
中文摘要海上原油泄漏在其风化迁移过程中会形成不同浓度的乳化物,严重威胁海洋生态环境。合成孔径雷达(SAR)因其不受雨、云影响,可昼夜监测的优势,在海上溢油监测过程中发挥着主力军的作用,但是它在原油乳化识别方面还存在着不足。本文利用C波段全极化散射计观测原油的自然乳化过程,并利用人工制备的不同含水率的乳化油品模拟原油乳化进程观测油膜后向散射系数(N_(RCS))的变化。实验结果表明乳化原油N_(RCS)高于未乳化原油,且油膜乳化程度越高相应的N_(RCS)越大。通过油水散射差值(△sigma~0)与阻尼比(D_R)发现能够识别乳化与未乳化原油,反映油膜乳化程度的变化,且在VV极化下效果最佳。
文章类型Article
资助机构国家自然科学基金; 国家重点研发计划项目; 中国科学院海洋大科学中心重点部署项目
收录类别CSCD
语种中文
CSCD记录号CSCD:6972704
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30279
专题中科院海岸带环境过程与生态修复重点实验室
作者单位1.中国科学院烟台海岸带研究所中国科学院环境过程与生态修复重点实验室,山东烟台264003;
2.中国科学院烟台海岸带研究所山东省海岸带环境过程重点实验室,山东烟台264003;
3.中国科学院海洋大科学中心,山东青岛266071;
4.中国科学院大学,北京100049;
5.烟台大学环境与材料工程学院,山东烟台264005;
6.自然资源部第一海洋研究所,山东青岛266061;
7.中国海洋大学,山东青岛266100
推荐引用方式
GB/T 7714许晨琪,过杰,杨启霞,等. 微波散射实验识别原油及乳化原油[J]. 海洋科学,2021,45(4):13-21.
APA许晨琪,过杰,杨启霞,张晰,刘根旺,&张彦敏.(2021).微波散射实验识别原油及乳化原油.海洋科学,45(4),13-21.
MLA许晨琪,et al."微波散射实验识别原油及乳化原油".海洋科学 45.4(2021):13-21.
PDF全文下载地址:
点我下载PDF
