Show simple item record

dc.contributor.authorEnciso, Juan
dc.contributor.authorJung, Jinha
dc.contributor.authorChang, Anjin
dc.contributor.authorChavez, Jose Carlos
dc.contributor.authorYeom, Junho
dc.contributor.authorLandivar, Juan
dc.contributor.authorCavazos, Gabriel
dc.date.accessioned2022-03-02T00:06:30Z
dc.date.available2022-03-02T00:06:30Z
dc.date.issued2018-01-02
dc.identifier.citationEnciso, J., Jung, J., Chang, A., Chavez, J.C., Yeom, J., Landivar, J. and Cavazos, G., 2018. Assessing land leveling needs and performance with unmanned aerial system. Journal of Applied Remote Sensing, 12(1), p.016001.en_US
dc.identifier.urihttps://hdl.handle.net/1969.6/90218
dc.description.abstractLand leveling is the initial step for increasing irrigation efficiencies in surface irrigation systems. The objective of this paper was to evaluate potential utilization of an unmanned aerial system (UAS) equipped with a digital camera to map ground elevations of a grower’s field and compare them with field measurements. A secondary objective was to use UAS data to obtain a digital terrain model before and after land leveling. UAS data were used to generate orthomosaic images and three-dimensional (3-D) point cloud data by applying the structure for motion algorithm to the images. Ground control points (GCPs) were established around the study area, and they were surveyed using a survey grade dual-frequency GPS unit for accurate georeferencing of the geospatial data products. A digital surface model (DSM) was then generated from the 3-D point cloud data before and after laser leveling to determine the topography before and after the leveling. The UAS-derived DSM was compared with terrain elevation measurements acquired from land surveying equipment for validation. Although 0.3% error or root mean square error of 0.11 m was observed between UAS derived and ground measured ground elevation data, the results indicated that UAS could be an efficient method for determining terrain elevation with an acceptable accuracy when there are no plants on the ground, and it can be used to assess the performance of a land leveling project.en_US
dc.language.isoen_USen_US
dc.publisherSPIEen_US
dc.subjectunmanned aerial systemen_US
dc.subjectuasen_US
dc.subjectland levelingen_US
dc.titleAssessing land leveling needs and performance with unmanned aerial systemen_US
dc.typeArticleen_US
dc.identifier.doihttps://doi.org/10.1117/1.JRS.12.016001


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record