Deriving Land and Water Surface Elevations in the Northeastern Yucatán Peninsula Using PPK GPS and UAV-Based Structure from Motion

Pingel, Thomas J.; Saavedra, Andrea; Cobo, Lillian

doi:10.1080/23754931.2021.1871937

Cited by 6 publications

(6 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This type of survey is extremely useful when it is necessary to increase accuracy and analyse interactions between cavities and surfaces. This article also evaluated the performance of a The problem of accuracy, as already seen in several cases involving natural sinkholes [15] and other issues [21], can be solved by using GNSS stations or drones equipped with GPS PPK-NRTK [14], which significantly reduce errors, but require more time for execution, processing and the use of more expensive instruments. The survey obtained using ground points surveyed with a GNSS station made it possible to identify the same number of cavities whose coordinates, in addition to being associated with greater precision (error of around 4 cm), are characterised by an exact orthometric height.…”

Section: Discussionmentioning

confidence: 99%

“…The use of UAVs is highly versatile for land mapping issues for geoscience purposes [13,14] and, in recent times, also in the study and monitoring of natural sinkholes [15], suggesting that they can also be applied to the search for and census of artificial cavities whose location is unknown. Technological progress in recent years has led to the miniaturisation of some lidar instruments and the possibility of installing them on smartphones and other wearable devices.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photogrammetry from UAV and Low-Cost Lidar for Sinkhole Hazard Mitigation in Urban Areas: Applications and Evaluations

Gentili,

Madonna

2024

Geographies

View full text Add to dashboard Cite

The Italian national territory is characterised by the widespread presence of cavities dating back to different periods, especially in urban areas. The lack of knowledge of the position of the entrances, planimetric developments and state of preservation contributes to accentuating the unknowns related to sinkhole risk, which are directly related to potential cavity collapses with the opening of surface chasms. To deepen knowledge with a view to risk mitigation, a method has been developed to employ surveys obtained from Unmanned Aerial Vehicles (UAVs) to locate entrances even in hard-to-access urban areas. These surveys, properly supported with GNSS stations, were then integrated with cavity surveys obtained from low-cost lidar mounted on iPhones. Comparisons were made with traditional surveying techniques to better understand the reliability of the surveys made with low-cost lidar. The 3D models obtained, combined with geomechanical surveys of the rock masses hosting the cavities, allowed the application of simplified and empirical methods for an initial stability assessment. This method was tested on a portion of the municipality of Grotte di Castro (Province of Viterbo—Italy).

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photogrammetry from UAV and Low-Cost Lidar for Sinkhole Hazard Mitigation in Urban Areas: Applications and Evaluations

Gentili,

Madonna

2024

Geographies

View full text Add to dashboard Cite

show abstract

“…Te disadvantages are that it is costly [71] and that the accuracy of the measurements can be afected if the vehicle is not properly stable. Another essential aspect that cannot be ignored is that water absorbs wavelengths commonly used for LiDAR [72]. Te phenomena of water volume scattering, water surface refection and refraction, and turbidity also complicate data modelling.…”

Section: Lidar Uas-based Lidar (Light Detection and Rangingmentioning

confidence: 99%

Uncrewed Aerial Systems in Water Resource Management and Monitoring: A Review of Sensors, Applications, Software, and Issues

Mishra

Avtar

Prathiba

et al. 2023

Advances in Civil Engineering

View full text Add to dashboard Cite

Uncrewed aerial systems (UASs) are becoming very popular in the domain of water resource mapping and management (WRMM). Being a cheaper and quicker option capable of providing high temporal and spatial resolution data, UAS has become a much sought-after platform for remote sensing. Still, their application in the field is in its early stage. This paper encompasses basic concepts of UAS, different payloads and sensor technologies available, various methodologies for its application in WRMM, different software available, and challenges associated with them, thus presenting a comprehensive review of multiple applications of UAS in different sub-domains of water resources. From cryosphere, rivers and lakes, and coastal areas to sub-surface water, as well as from water quality to wastewater management, the authors have discussed various applications of uncrewed aerial vehicles. At the end of the paper, the authors have identified the issues posing problems in the wider implementation of UAS in WRMM. Also, the future scope of the UAS in WRMM has been discussed.

show abstract

“…Due to the weight and cost of UAV-borne LiDAR systems, researchers have attempted to deploy SfM photogrammetry using UAV-acquired imagery to measure WSE. However, despite the accuracy of UAV-borne photogrammetry in creating DEMs of solid surfaces, SfM algorithms are not effective in reconstructing WSE because of shadows, lack of stable visual key points on the water surface due to waves, and through-water penetration of visible light (Mohamad et al, 2019;Pingel et al, 2021). Westaway (2001) and Westaway et al (2000) suggested that WSE profiles could be estimated by interpolating elevation measurements acquired from streambank locations ("water-edge") adjacent to the waterbody.…”

Section: Water Surface Elevation (Wse)mentioning

confidence: 99%

Unmanned Aerial Vehicles in Hydrology and Water Management: Applications, Challenges, and Perspectives

Acharya

Bhandari

Bandini

et al. 2021

Water Resources Research

View full text Add to dashboard Cite

Global water withdrawal and usage have risen nearly sixfold since 1900. Approximately 69% of water withdrawals are used in agriculture, 19% in industries, and 12% for municipal purposes (Food and Agriculture Organization of the United Nations, 2020). Anthropogenic disturbances and climate change affect the water cycle, water supply and demand, and impose stress on the global water systems (Haddeland et al., 2014). As such, hydrologists, geologists, agronomists, soil scientists, and engineers need reliable tools to monitor and manage surface and groundwater resources, particularly in locations where traditional monitoring is inadequate.Traditional water monitoring and measurement techniques are time-consuming, costly, and typify an inadequate and disproportionate spatial and temporal range. Over the past few decades, airplanes and satellites have been the chief source of remotely sensed water resource data. However, the usefulness of these platforms is mainly restricted to the largest spatial scales. The low frequency of temporal sampling is dictated by logistical costs (aerial imagery) or tasking schedules (satellites; Becker et al., 2009;Xue & Su, 2017). The dearth of finer resolution data and temporal inflexibility of these platforms precludes the possibility of on-demand data acquisition that is often necessary to capture the highly transient processes operating at fine spatial scales necessary for the planning and management of water resources (e.g., freshwater abstraction) and the assessment of hazards (e.g., flood extents). However, with recent advances in sensors, cameras,

show abstract

Deriving Land and Water Surface Elevations in the Northeastern Yucatán Peninsula Using PPK GPS and UAV-Based Structure from Motion

Cited by 6 publications

References 65 publications

Photogrammetry from UAV and Low-Cost Lidar for Sinkhole Hazard Mitigation in Urban Areas: Applications and Evaluations

Photogrammetry from UAV and Low-Cost Lidar for Sinkhole Hazard Mitigation in Urban Areas: Applications and Evaluations

Uncrewed Aerial Systems in Water Resource Management and Monitoring: A Review of Sensors, Applications, Software, and Issues

Unmanned Aerial Vehicles in Hydrology and Water Management: Applications, Challenges, and Perspectives

Contact Info

Product

Resources

About