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渤海海冰微波散射特性研究
引用本文:刘眉洁,戴永寿,张杰,张晰,孟俊敏,朱秀芹,尹雅磊. 渤海海冰微波散射特性研究[J]. 海洋学报(英文版), 2016, 35(5): 89-98. DOI: 10.1007/s13131-016-0861-6
作者姓名:刘眉洁  戴永寿  张杰  张晰  孟俊敏  朱秀芹  尹雅磊
作者单位:中国石油大学(华东), 信息与控制工程学院, 青岛, 266580;国家海洋局第一海洋研究所, 青岛, 266061;青岛大学, 物理科学学院, 青岛, 266071,中国石油大学(华东), 信息与控制工程学院, 青岛, 266580,国家海洋局第一海洋研究所, 青岛, 266061,国家海洋局第一海洋研究所, 青岛, 266061,国家海洋局第一海洋研究所, 青岛, 266061,中国电波传播研究所, 青岛分所, 青岛, 266107,中国电波传播研究所, 青岛分所, 青岛, 266107
基金项目:The National Science Foundation for Young Scientists of China under contract No. 41306193; the National Special Research Fund for Non-Profit Marine Sector under of China under contract No. 201105016; the European Space Agency-Ministry of Science and Technology of the People''s Republic of China (ESA-MOST) Dragon 3 Cooperation Programme under contract No. 10501.
摘    要:Microwave remote sensing has become the primary means for sea-ice research, and has been supported by a great deal of field experiments and theoretical studies regarding sea-ice microwave scattering. However, these studies have been barely carried in the Bohai Sea. The sea-ice microwave scattering mechanism was first developed for the thin sea ice with slight roughness in the Bohai Sea in the winter of 2012, and included the backscattering coefficients which were measured on the different conditions of three bands(L, C and X), two polarizations(HH and VV), and incident angles of 20° to 60°, using a ground-based scatterometer and the synchronous physical parameters of the sea-ice temperature, density, thickness, salinity, and so on. The theoretical model of the sea-ice electromagnetic scattering is obtained based on these physical parameters. The research regarding the sea-ice microwave scattering mechanism is carried out through two means, which includes the comparison between the field microwave scattering data and the simulation results of the theoretical model, as well as the feature analysis of the four components of the sea-ice electromagnetic scattering. It is revealed that the sea-ice microwave scattering data and the theoretical simulation results vary in the same trend with the incident angles. Also, there is a visible variant in the sensitivity of every component to the different bands.For example, the C and X bands are sensitive to the top surface, the X band is sensitive to the scatterers, and the L and C bands are sensitive to the bottom surface, and so on. It is suggested that the features of the sea-ice surfaces and scatterers can be retrieved by the further research in the future. This experiment can provide an experimental and theoretical foundation for research regarding the sea-ice microwave scattering characteristics in the Bohai Sea.

关 键 词:海冰现场实验  海冰微波散射特性  海冰物理参数  海冰电磁散射理论
收稿时间:2015-02-13
修稿时间:2015-05-13

The microwave scattering characteristics of sea ice in the Bohai Sea
LIU Meijie,DAI Yongshou,ZHANG Jie,ZHANG Xi,MENG Junmin,ZHU Xiuqin and YIN Yalei. The microwave scattering characteristics of sea ice in the Bohai Sea[J]. Acta Oceanologica Sinica, 2016, 35(5): 89-98. DOI: 10.1007/s13131-016-0861-6
Authors:LIU Meijie  DAI Yongshou  ZHANG Jie  ZHANG Xi  MENG Junmin  ZHU Xiuqin  YIN Yalei
Affiliation:1.China University of Petroleum (Huadong), Qingdao 266580, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;College of Physics, Qingdao University, Qingdao 266071, China2.China University of Petroleum (Huadong), Qingdao 266580, China3.First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China4.Qingdao Branch, China Research Institute of Radiowave Propagation, Qingdao 266107, China
Abstract:Microwave remote sensing has become the primary means for sea-ice research, and has been supported by a great deal of field experiments and theoretical studies regarding sea-ice microwave scattering. However, these studies have been barely carried in the Bohai Sea. The sea-ice microwave scattering mechanism was first developed for the thin sea ice with slight roughness in the Bohai Sea in the winter of 2012, and included the backscattering coefficients which were measured on the different conditions of three bands (L, C and X), two polarizations (HH and VV), and incident angles of 20° to 60°, using a ground-based scatterometer and the synchronous physical parameters of the sea-ice temperature, density, thickness, salinity, and so on. The theoretical model of the sea-ice electromagnetic scattering is obtained based on these physical parameters. The research regarding the sea-ice microwave scattering mechanism is carried out through two means, which includes the comparison between the field microwave scattering data and the simulation results of the theoretical model, as well as the feature analysis of the four components of the sea-ice electromagnetic scattering. It is revealed that the sea-ice microwave scattering data and the theoretical simulation results vary in the same trend with the incident angles. Also, there is a visible variant in the sensitivity of every component to the different bands. For example, the C and X bands are sensitive to the top surface, the X band is sensitive to the scatterers, and the L and C bands are sensitive to the bottom surface, and so on. It is suggested that the features of the sea-ice surfaces and scatterers can be retrieved by the further research in the future. This experiment can provide an experimental and theoretical foundation for research regarding the sea-ice microwave scattering characteristics in the Bohai Sea.
Keywords:sea-ice field experiment  sea-ice microwave scattering characteristics  sea-ice physical parameters  sea-ice electromagnetic scattering theory
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