Effective and efficient agricultural drainage pipe mapping with UAS thermal infrared imagery: A case study
Effective and efficient agricultural drainage pipe mapping with UAS thermal infrared imagery: A case study
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DOI：
10.1016/j.agwat.2017.11.011
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发表时间：
2018-01-15
影响因子：
6.7
通讯作者：
Wishart, DeBonne
中科院分区：
文献类型：
--
作者：
Allred, Barry;Eash, Neal;Wishart, DeBonne
需要有效和高效的方法来绘制农业地下排水系统。由无人驾驶航空器系统（UAS）获得的可见光（维斯）、近红外（NIR）和热红外（TIR）图像可以提供用于确定排水管位置的手段。在美国俄亥俄州中部的一个农田试验场，使用维斯、NIR和TIR传感器进行了初步的UAS调查。在UAS调查期间，土壤表面非常干燥（前一周降雨量不到5毫米，土壤表面体积含水量低于16%，土壤表面温度高于33摄氏度），地面部分覆盖着过去生长季节的作物残留物和现有的早期生长阶段玉米/大豆。在这些实地条件下，维斯和NIR图像未探测到排水管道。相反，TIR图像检测到已知存在的地下排水基础设施的大约60%。因此，从无人机系统调查TIR图像被认为有相当大的潜力，排水管道测绘的目的，相比维斯和近红外图像，可能更适合于检测排水管道的位置在干燥的表面条件下。然而，在不同的土壤湿度/干燥条件下，以及在具有不同类型土壤和排水系统特性的一些试验地点，肯定需要对用于排水管道测绘的维斯、近红外和TIR图像进行更多的评价。由爱思唯尔公司出版
Effective and efficient methods are needed to map agricultural subsurface drainage systems. Visible (VIS), near infrared (NIR), and thermal infrared (TIR) imagery obtained by unmanned aircraft systems (UAS) may provide a means for determining drainage pipe locations. Preliminary UAS surveys with VIS, NIR, and TIR sensors were carried out at a farm field test site in central Ohio (U.S.A). During the UAS surveys, the soil surface was very dry (less than 5 mm of rainfall the previous week, soil surface volumetric water content below 16%, and soil surface temperature above 33 degrees C), and the ground was partially covered with past growing season crop residue and existing early growth stage corn/soybeans. Under these field conditions, drainage pipes were not detected with the VIS and NIR imagery. Conversely, the TIR image detected roughly 60% of the subsurface drainage infrastructure known to be present. Consequently, TIR imagery from UAS surveys was found to have considerable potential for drainage pipe mapping purposes, and compared to VIS and NIR imagery, may be better suited for detecting drain line locations under dry surface conditions. However, more evaluation of VIS, NIR, and TIR imagery for drainage pipe mapping is certainly needed under different soil wetness/dryness conditions and at a number of test sites having different types of soil and drainage system characteristics. Published by Elsevier B.V.