Article
Engineering, Marine
Francisco Contreras-de-Villar, Francisco J. Garcia, Juan J. Munoz-Perez, Antonio Contreras-de-Villar, Veronica Ruiz-Ortiz, Patricia Lopez, Santiago Garcia-Lopez, Bismarck Jigena
Summary: Research has shown that various factors such as flight time, frame overlap, and the number of GCPs can significantly impact the accuracy of beach area mapping with RPAS. In general, conducting flights in the early morning can help reduce errors and improve accuracy in surveys.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
Francesco Mugnai, Grazia Tucci
Summary: The main aim of this study is to compare the photogrammetric performances of four user-grade unmanned aircraft systems (UAS) including Phantom 4 Adv, Mavic 2 Pro, Mavic Air 2, and Mavic Mini 2. The results show that Phantom 4 has the best performance, while Mavic Mini 2 has lower costs among ultralight drones.
Review
Remote Sensing
Christian G. G. Andresen, Emily S. S. Schultz-Fellenz
Summary: In the past decade, advancements in collection platforms have enabled change detection analyses at a high resolution in challenging environments. UAS technology has pushed the boundaries of spatial and temporal scales, allowing for precise analysis of surface anomalies during geomorphic evolution. This review discusses the use of UAS photogrammetry and its analytical approaches to detect and quantify surface processes, shedding light on previously unexplored aspects of natural and human-engineered environments.
Article
Computer Science, Interdisciplinary Applications
Jhonattan G. Martinez, Gilles Albeaino, Masoud Gheisari, Walter Volkmann, Luis F. Alarcon
Summary: This study investigates the impact of single- and dual-frequency global navigation satellite systems (GNSS) and postprocessing kinematic (PPK) technique on the accuracy of unmanned aerial system (UAS)-generated point cloud data (PCD) in building surveying applications. The experiment compares PCD accuracy under different UAS configurations and conditions, leading to the development of a PCD accuracy matrix illustrating the effects of technical configurations and flight parameters on accuracy levels.
JOURNAL OF COMPUTING IN CIVIL ENGINEERING
(2021)
Review
Environmental Sciences
Sayed Ishaq Deliry, Ugur Avdan
Summary: Recent advancements in UAS and SfM technology have revolutionized surveying engineering by providing high-resolution topographic data, but concerns about accuracy and precision remain. A thorough evaluation and validation are necessary to determine if this method can be a viable alternative to conventional methods in surveying and mapping applications.
JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
(2021)
Article
Environmental Sciences
Yajie Liu, Kevin Han, William Rasdorf
Summary: This paper evaluates the significance levels of five influence factors on UAS-based photogrammetry accuracy and investigates their interactions using multiple regression. It also develops prediction models for horizontal and vertical accuracies. The findings of this study can guide surveyors in designing flight configurations for high accuracies and provide reasonable predictions for different flight configurations.
Article
Forestry
Heather Grybas, Russell G. Congalton
Summary: Unmanned aerial systems (UASs) and structure-from-motion (SfM) image processing can be important tools for sustainable forest management. This study investigated the impact of flight parameters on the accuracy of estimated forest structure and found that flying height does not significantly affect accuracy, while increasing forward overlap can significantly reduce errors.
Article
Environmental Sciences
Benjamin T. Fraser, Russell G. Congalton
Summary: The research utilizes Unmanned Aerial Systems (UAS) and advanced image processing techniques to estimate tree diameters and various stand-level parameters in forests, with an average error reported. Stand-level parameters were either overestimated or underestimated, with a lesser overestimation for stands larger than 9 hectares. Random forest supervised classification achieved a promising overall accuracy of 85% in identifying large trees, offering local land managers opportunities for better understanding forested ecosystems. Future research on individual tree crown detection, especially for co-dominant or suppressed trees, will further enhance these efforts.
Article
Engineering, Multidisciplinary
Hui-Ming Fang, Kuan-Tsung Chang, Sung-Shan Hsiao, Shih-Peng Chiang
Summary: This study developed a method for beach topography surveillance using unmanned aerial vehicles (UAVs) equipped with cameras and positioning systems. Comparisons between image-matching point clouds and direct measurements showed that UAVs at an operational altitude of 70 m had a ground sample distance of 3.26 cm and measurement errors within acceptable criteria.
JOURNAL OF MARINE SCIENCE AND TECHNOLOGY-TAIWAN
(2021)
Article
Engineering, Marine
Andrea Tadic, Igor Ruzic, Nino Krvavica, Suzana Ilic
Summary: This study utilized UAV surveys and SfM photogrammetry to evaluate the performance of an artificial gravel beach exposed to various external forces, including storms. The results showed that the beach experienced the largest changes after the first storm following nourishment, with most sediment loss occurring on the east side. However, overall changes in beach volume and area were relatively small, indicating the stability of the artificial beach. The study emphasized the importance of considering pocket embayed beaches in three dimensions and highlighted the potential of UAVs and SfM for high-resolution elevation change studies and coastal monitoring of beach nourishment.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Remote Sensing
Nicholas D. Diaz, Wesley E. Highfield, Samuel D. Brody, Brent R. Fortenberry
Summary: This study examines the use of an Unmanned Aerial System (UAS) to accurately determine first-floor elevation (FFE) and other flood-sensitive measurements. The results show that the UAS-based FFE measurements are efficient and cost-effective, and are comparable to traditional measurement methods.
Article
Geosciences, Multidisciplinary
Davide Mazza, Luigi Parente, Daniele Cifaldi, Agostino Meo, Maria Rosaria Senatore, Francesco Maria Guadagno, Paola Revellino
Summary: Recent technological advances have led to the adoption of photogrammetric products for various geoscientific applications. Drone-based Structure-from-Motion (SfM) photogrammetry has advantages over traditional surveying approaches in terms of time and cost. This study investigates the adaptability of drone-based surveys, even with a targetless approach, and estimates bathymetrical accuracies in shallow waters.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Environmental Sciences
Daniele Ventura, Francesca Napoleone, Silvia Cannucci, Samuel Alleaume, Emiliana Valentini, Edoardo Casoli, Sabina Burrascano
Summary: This study used a low-cost unmanned aerial vehicle (UAV) and Structure from Motion (SfM) photogrammetry to capture high-resolution RGB imagery of semi-natural grasslands. Image classification through Object-Based Image Analysis (OBIA) allowed for accurate identification of three grassland types. The use of orthomosaics, digital elevation models (DEMs), and canopy height models (CHMs) achieved high classification accuracies and provided valuable information on vegetation cover and terrain characteristics.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Amerigo Corradetti, Thomas Seers, Marco Mercuri, Chiara Calligaris, Alice Busetti, Luca Zini
Summary: We are witnessing a digital revolution in geoscientific field data collection and sharing, driven by low-cost sensory platforms and various apps. However, the accuracy of consumer-grade 3D model acquisition platforms is often compromised for improved accessibility. Comparative analysis suggests that geotagged field-based photographs alone may not result in models with acceptable scaling errors, while iOS LiDAR acquisition apps can produce accurately scaled models but may have surface deformations caused by SLAM errors.
Article
Engineering, Multidisciplinary
Ludovit Kovanic, Martin Stroner, Peter Blistan, Rudolf Urban, Rudolf Boczek
Summary: The geometric parameters of large-scale machinery are checked using traditional geodetic and measuring methods. For a rotary kiln (RK), the focus is on determining its real longitudinal axis geometry and shell deformation. The geodetic methods employ total station (TS) or terrestrial laser scanning (TLS) for 3D coordinate measurements. In this research, these methods were used as ground-truth references to evaluate the SfM-MVS approach in 3D modeling and rotary kiln geometry derivation.
Article
Engineering, Civil
Laura Lemke, Jon K. Miller
COASTAL ENGINEERING
(2020)
Article
Engineering, Civil
Taylor Zimmerman, Jon K. Miller
Summary: This study investigated the impact of both notched and traditional groin fields on the morphological evolution of a beach in Deal, New Jersey, USA. The notching of groins partially reduced shoreline asymmetry by bypassing sediment transport through the notches. The effectiveness of notched groins in stabilizing adjacent shorelines and promoting longshore sediment transport varied depending on their location within the groin field and post-nourishment morphological evolution.
COASTAL ENGINEERING
(2021)
Article
Engineering, Marine
Matthew S. Janssen, Jon K. Miller
Summary: This article introduces a fragile curve model using a newly developed dune Engineering Demand Parameter (EDP), which can effectively assess the likelihood of dune erosion during storm events. By including storm intensity and resilience terms in the EDP, different beach configurations can be compared in different storm events.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Marine
Laura Lemke, Jon K. Miller
Summary: Coastal erosion is influenced by storm intensity and location vulnerability factors. Peak Erosion Intensity (PEI) was found to be the most important parameter in predicting dune impacts, successfully distinguishing between storms likely to result in no impacts and those likely to cause some damage.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Civil
Matthew S. Janssen, Laura Lemke, Jon K. Miller, W. Scott Douglas
Summary: This comprehensive case study of the coastal processes for Fortescue Inlet in New Jersey compares the effectiveness of traditional sedimentation control structures and modified dredging templates. The results suggest that the use of offshore deposition basins delivers the most promising improvement with a potential cost savings of over 10% compared to existing strategies.
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
(2022)
Article
Meteorology & Atmospheric Sciences
Mohammad Jamous, Reza Marsooli, Jon K. K. Miller
Summary: This study uses physics-based morphodynamic modeling to assess the regional impacts of climate change and sea level rise on erosion hazards to sandy beaches and dunes in New Jersey, USA. The results show a substantial increase in erosion hazards under the HCC and HCC + SLR scenarios, with the regionally averaged 100-year eroded volume of beach-dune systems increasing by 58% and 84% respectively. The study also highlights the importance of the morphological characteristics of beach-dune systems in the impacts of climate change on coastal erosion.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Construction & Building Technology
Amy L. Bredes, Jon K. Miller, Laura Kerr, Dana Rose Brown
Summary: This study analyzes the modifications to the incident wave field caused by Oyster Castle breakwater systems at Gandys Beach Preserve in New Jersey. The results show that when the Oyster Castles are exposed, they effectively attenuate waves, but when submerged, wave height attenuation decreases and wave heights behind the Oyster Castles can be amplified by more than 80%. This amplification is concerning, especially in areas experiencing sea level rise.
FRONTIERS IN BUILT ENVIRONMENT
(2022)
Article
Construction & Building Technology
Reza Marsooli, Mohammad Jamous, Jon K. Miller
Summary: This study investigates the combined influence of sea level rise and hurricane climatology change on wave heights induced by major hurricanes off the coast of New Jersey. The projections show statistically significant increases in wave heights, particularly in deeper coastal waters and back-bays. It is found that sea level rise alone would result in a significant increase in hurricane-induced wave heights in the present-day surf zone.
FRONTIERS IN BUILT ENVIRONMENT
(2021)
Article
Engineering, Marine
Laura Lemke, Matthew S. Janssen, Jon K. Miller
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2020)
Review
Environmental Sciences
Badreyah Almarshed, Jens Figlus, Jon Miller, Henk Jan Verhagen
JOURNAL OF COASTAL RESEARCH
(2020)
Article
Engineering, Civil
Laura Lemke, Jon K. Miller
COASTAL ENGINEERING
(2017)
Article
Engineering, Civil
Jon K. Miller, Robert G. Dean
COASTAL ENGINEERING
(2007)
Article
Engineering, Civil
Jon K. Miller, Robert G. Dean
COASTAL ENGINEERING
(2007)
Article
Engineering, Civil
JK Miller, RG Dean
COASTAL ENGINEERING
(2004)