Accuracy constraints of terrestrial Lidar data for soil erosion measurement: Application to a Mediterranean field plot
Accuracy constraints of terrestrial Lidar data for soil erosion measurement: Application to a Mediterranean field plot
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用于土壤侵蚀测量的陆地激光雷达数据的精度约束:在地中海田间地块中的应用
DOI:
10.1016/j.geomorph.2015.06.008
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发表时间:
2015
期刊:
影响因子:
3.9
通讯作者:
Baumgart
中科院分区:
文献类型:
--
作者:
Eltner;Baumgart
Applications of terrestrial laser scanning (TLS) to measure soil erosion are yet limited, although this topographic mapping method allows for large area coverage with high resolution and reliable precision. However, restricting factors are accurate and stable references for multi-temporal change detection and adverse scanning geometries. At agricultural fields the plot is usually situated on gentle slopes provoking low viewing angles of the scanning device onto the surface, which inherits the risk of high data noise. In this study, TLS is exploited from a high tripod to measure soil erosion at an Andalusian hillslope (2 × 1000 m2). In the Mediterranean sediment yield reveals discontinuous pattern and TLS is a promising method to quantify these surface changes. A stable reference system is defined, resulting in multi-temporal registration accuracy better than 7 mm. Further, an mm-accurate calibration plot (60 m2) is designed to evaluate scan geometry and radiometry (i.e. incidence angle, footprint, and intensity) in dependence of distance related errors. A lookup table is determined to correct systematic errors of the field data. The Andalusian field plot is captured during a winter season and during single precipitation events. Estimated erosion rates amount 10 and 2.4 t ha−1, respectively. Surface changes with magnitudes larger 1.5 cm are reliably measured. TLS can be implemented to estimate soil erosion with cm-resolution if errors are carefully accounted for.
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影响因子:
6.2
作者:
J. Montoro;M. Stocking
通讯作者:
J. Montoro;M. Stocking
影响因子:
2.2
作者:
D. Faust;Michael Schmidt
通讯作者:
Michael Schmidt
影响因子:
4.7
作者:
C. Boix‐Fayos;M. Martínez;A. Calvo;V. Castillo;J. Albaladejo
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影响因子:
3.2
作者:
M. Martínez-Mena;V. Castillo;J. Albaladejo
通讯作者:
M. Martínez-Mena;V. Castillo;J. Albaladejo
DOI:
10.1016/j.isprsjprs.2013.04.009
发表时间:
2013-08-01
影响因子:
12.7
作者:
Lague, Dimitri;Brodu, Nicolas;Leroux, Jerome
通讯作者:
Leroux, Jerome