基于GNSS-R极地海冰测量方法的研究

Research on the method of polar sea ice detecting based on GNSS-R

全球卫星导航系统(GNSS)在经历了将近50年的发展后,已经在国际上取得了相当大的影响,GNSS在经济发展和人类生活方面有着很重要的作用。随着温室气体的排放,全球温室效应,冰川融化,使得越来越多的国家开始重视对海洋的监测。文章以欧洲空间局(ESA)实验数据为数据来源,利用电磁信号在不同的介质表面反射产生的电磁特性变化作为理论依据,论证利用海冰的幅度极化比来监测海冰的形成和消融过程是否可靠。分析结果显示,信号的幅度极化比与海冰在海洋中的覆盖率有着很强的相关性。

Global Navigation Satellite System-Reflection （GNSS） has been developing for nearly 50 years, it has achieved considerable influ- ence in the world. It palys an important role in economic development and human life . With the greenhouse gas emissions,the global green- house effect, melting glaciers, making more and more countries begin to pay attention to the monitoring of the ocean. This paper＇ s data source is from European Space Agency（ESA） experimental data. Using electromagnetic signal generated change of electromagnetic characteristics after reflection in different dielectric surfaces as the theoretical basis, the reliable of using sea-ice＇ s polarization radio to monitor the formation and ablation of ocean is demonstrated. As a result, the polarization radio has strong correlation with the cover rate of sea-ice in the sea.