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Joint statistical properties of RMS height and correlation length derived from multisite 1-m roughness measurements

机译:从多站点1-m粗糙度测量得出的RMS高度和相关长度的联合统计属性

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摘要

This paper aims to establish the joint roughness statistics for rms height s and correlation length l for agricultural bare soil fields and a variety of tillage conditions. To do so, we make use of a unique pan-European database of profile measurements covering five different sites and containing approximately 1.5 km of profile data. A preliminary assessment of the validity of the derived roughness statistics for electromagnetic scattering models is also carried out by comparing /spl sigma//sup 0/ predictions obtained using the integral equation model with derived roughness statistics and European Remote Sensing 1 and 2 (ERS 1/2) synthetic aperture radar observations. The results are then summarized within the overall context of roughness description and we discuss the implications in terms of forward modeling and inversion. The limitations of s and l parameters as roughness descriptors are also underlined.
机译:本文旨在建立农业裸土田和各种耕作条件下的均方根高度s和相关长度l的联合粗糙度统计数据。为此,我们使用了一个独特的泛欧洲概况测量数据库,该数据库涵盖五个不同的站点,并包含约1.5 km的概况数据。通过比较/ spl sigma // sup 0 /使用积分方程模型获得的预测与粗糙度统计量以及欧洲遥感1和2(ERS 1),对电磁散射模型的粗糙度统计量的有效性进行了初步评估。 / 2)合成孔径雷达观测。然后,在粗糙度描述的整体上下文中对结果进行汇总,并讨论正向建模和反演方面的含义。还强调了s和l参数作为粗糙度描述符的局限性。

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