Impact of emulsification of crude oil on normalized radar cross section

GUO Jie; ZHANG Tianlong; ZHANG Xi; LIU Genwang

doi:10.1007/s00343-019-8298-3

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Impact of emulsification of crude oil on normalized radar cross section

Physics | Updated：2023-04-27

- Impact of emulsification of crude oil on normalized radar cross section
- Journal of Oceanology and Limnology Vol. 38, Issue 1, Pages: 42-54(2020)
- Affiliations：
  
  1.CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research(YIC), Chinese Academy of Sciences(CAS), Yantai 264003, China
  2.Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, China
  3.Center for Ocean Mega-Science, CAS, Qingdao 266071, China
  4.University of Chinese Academy of Sciences, Beijing 100049, China
  5.First Institute of Oceanography(FIO), Ministry of Natural Resources(MNR), Qingdao 266061, China
- Author bio：
  
  GUO Jie, jguo@yic.ac.cn
  ZHANG Xi, xi.zhang@fio.org.cn
- Funds：
- DOI：10.1007/s00343-019-8298-3
  CLC：
- Received：23 October 2018，
  
  Accepted：01 February 2019，
  
  Online First：25 March 2019，
  
  Published：2020-01
- Accepted：
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GUO Jie, ZHANG Tianlong, ZHANG Xi, et al. Impact of emulsification of crude oil on normalized radar cross section[J]. Journal of Oceanology and Limnology, 2020, 38(1): 42-54.
DOI：

GUO Jie, ZHANG Tianlong, ZHANG Xi, et al. Impact of emulsification of crude oil on normalized radar cross section[J]. Journal of Oceanology and Limnology, 2020, 38(1): 42-54. DOI： 10.1007/s00343-019-8298-3.

摘要

Abstract

The emulsification of crude oil is caused by the oil flowing into the water

resulting in the increase of oil film tension

viscosity

water content

and volume

which brings great harm to the marine ecological environment and difficulties for the cleanup of marine emergency equipment. The realization observation of emulsification crude oil will increase the response speed of marine emergency response. Therefore

we set up crude oil emulsification samples to study the physical property in laboratory and conducted radar measurements at different incidence angles in outdoor. The radar is C band in resolution of 0.7 m by 0.7 m. A fully polarimetric scatterometer (HH

and VH/HV) is mounted at 1.66 m (minimum altitude) height at an incidence angle between 35° and 60°. An asphalt content of less than 3% crude oil and the filtered seawater were used to the outdoor emulsification scattering experiment. The measurement results are as follows. The water content can be used to describe the process of emulsification and it is easy to measure. Wind speed

asphalt content

seawater temperature

and photo-oxidation affect the emulsifying process of crude oil

and affects the normalized radar cross section (NRCS) of oil film but wind is not the dominant factor. It is the first time to find that the emulsification of crude oil results in an increase of NRCS.

关键词

Keywords

references

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