High‐resolution vertical polarimetric imaging of pine forests
High‐resolution vertical polarimetric imaging of pine forests
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DOI：
10.1002/2013rs005192
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发表时间：
2014-03
期刊：
影响因子：
1.6
通讯作者：
C. Albinet;P. Borderies;A. Hamadi;P. Dubois-Fernandez;T. Koleck;S. Angélliaume
中科院分区：
文献类型：
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作者：
C. Albinet;P. Borderies;A. Hamadi;P. Dubois-Fernandez;T. Koleck;S. Angélliaume
本文描述了使用地面偏振断层扫描成像仪进行的现场活动，该成像仪旨在测量多个森林地块的垂直响应，以便更好地了解影响总雷达响应的机制。此次活动在法国南部的门德森林进行，这是一片欧洲黑松人工森林。目的是根据生物物理参数对雷达可观测值进行灵敏度研究。本文介绍了实验硬件和程序、所有站点获得的结果，并根据事实对结果进行了讨论。结果显示了几个参数（如树木密度、森林生长、灌木丛的存在和地面坡度）的反向散射强度的垂直分布。还显示了地面、体积和整个森林结构反向散射的能量的演变。这些结果表明，此类活动有利于提高对雷达机制沿垂直轴分布的理解。
This paper describes a field campaign performed with a ground‐based polarimetric tomographic imager designed to measure the vertical response of several forest plots in order to better understand the mechanisms contributing to the total radar response. The campaign took place in the Mende forest, an artificial forest of European black pines, in the south of France. The objective is to perform a sensitivity study on the radar observables based on biophysical parameters. This paper presents a description of the experiment hardware and procedure, the results obtained for all sites, and a discussion of the results in the light of the ground truth. The results show the vertical distribution of the backscattered intensity for several parameters like tree density, forest growth, presence of undergrowth, and ground slope. The evolution of the energy backscattered by the ground, the volume, and the whole forest structure is also displayed. These results have shown the interest of such a campaign to improve the understanding of the distribution of radar mechanisms along the vertical axis.