Unmanned Aerial Vehicle (UAV) for Monitoring Soil Erosion in Morocco
Unmanned Aerial Vehicle (UAV) for Monitoring Soil Erosion in Morocco
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DOI：
10.3390/rs4113390
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发表时间：
2012-11-01
期刊：
影响因子：
5
通讯作者：
Ries, Johannes B.
中科院分区：
文献类型：
--
作者：
d'Oleire-Oltmanns, Sebastian;Marzolff, Irene;Ries, Johannes B.
本文介绍了一种环境遥感应用，使用无人机，专门针对减少在摩洛哥土壤侵蚀监测领域的规模和卫星尺度之间的数据差距。采用装备有数字系统照相机（Panasonic）的Sirius I型固定翼飞机（MAVinci，德国）。无人机调查是在不同的研究地点进行的，范围和飞行高度各不相同，以便提供非常高分辨率的特定地点数据和较低分辨率的概览，从而充分利用所选无人机用于多比例尺制图目的的巨大潜力。根据尺度和区域覆盖范围，使用两种不同的地理参考方法，分别基于高精度的GCP或具有外部方位值的UAV日志文件。摄影测量图像处理使得能够创建数字地形模型（DTM）和具有亚分米级的非常高分辨率的正射图像镶嵌。创建的数据产品用于量化2D和3D的沟壑和荒地侵蚀，以及用于分析周围地区和景观发展的更大范围。
This article presents an environmental remote sensing application using a UAV that is specifically aimed at reducing the data gap between field scale and satellite scale in soil erosion monitoring in Morocco. A fixed-wing aircraft type Sirius I (MAVinci, Germany) equipped with a digital system camera (Panasonic) is employed. UAV surveys are conducted over different study sites with varying extents and flying heights in order to provide both very high resolution site-specific data and lower-resolution overviews, thus fully exploiting the large potential of the chosen UAV for multi-scale mapping purposes. Depending on the scale and area coverage, two different approaches for georeferencing are used, based on high-precision GCPs or the UAV's log file with exterior orientation values respectively. The photogrammetric image processing enables the creation of Digital Terrain Models (DTMs) and ortho-image mosaics with very high resolution on a sub-decimetre level. The created data products were used for quantifying gully and badland erosion in 2D and 3D as well as for the analysis of the surrounding areas and landscape development for larger extents.