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The penetration effects on TanDEM-X elevation using the GNSS and laser altimetry measurements in Antarctica

机译:使用GNSS和南极洲的激光测高仪测量对TanDEM-X高程的穿透作用

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摘要

Synthetic Aperture Radar (SAR) has been widely used in many different fields, such as geoscience, climate monitoring, security-related applications. However, over natural terrain the radar signal has the ability to penetrate the ground surface which can cause the bias in the elevation measurements. The aim of the paper is to assess the SAR signal penetration effect on the TanDEM-X absolute elevation over ice and snow covered areas and it presents the results concerning the X-band SAR signal penetration effect on dry snow areas and blue ice region. Additionally, the relationship between SAR signal penetration depth and backscattering coefficient is exploited and discussed. In this paper, two study sites, Schirmacher area and Recovery Ice Stream are selected and it is found that the general X-band SAR signal penetration depth is around 3-7 meter on dry snow area while no penetration depth is expected on the blue-ice region.
机译:合成孔径雷达(SAR)已广泛用于许多不同领域,例如地球科学,气候监测,与安全相关的应用。但是,在自然地形上,雷达信号具有穿透地面的能力,这可能会导致高程测量结果出现偏差。本文的目的是评估SAR信号穿透对冰雪覆盖地区的TanDEM-X绝对高程的影响,并提出有关X波段SAR信号穿透对干雪和蓝冰地区的影响的结果。此外,SAR信号穿透深度和反向散射系数之间的关系得到了利用和讨论。在本文中,我们选择了两个研究地点,即Schirmacher区域和Recovery Ice Stream,发现在干燥积雪区域,一般X波段SAR信号穿透深度约为3-7米,而在蓝色区域,预计没有穿透深度。冰区。

著录项

  • 作者

    Zhao, Jie; Floricioiu, Dana;

  • 作者单位
  • 年度 2017
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  • 原文格式 PDF
  • 正文语种 en
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