Article
Geosciences, Multidisciplinary
Shuntaro Hata, Shin Sugiyama
Summary: Glaciar Pio XI has been advancing and thickening over the past few decades, in contrast to the generally retreating and thinning trends observed in other glaciers in the Southern Patagonia Icefield. The glacier's surface elevation has increased, and its ice mass increase during the study period accounts for 4% of the total mass loss from the SPI between 2000 and 2015/16.
FRONTIERS IN EARTH SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Ludovit Kovanic, Branislav Topitzer, Patrik Petovsky, Peter Blistan, Marcela Bindzarova Gergelova, Monika Blistanova
Summary: Using unmanned aerial vehicles (UAVs) combined with various sensors allows for fast, automatic, and contactless collection of spatial data with high resolution and accuracy. The most common application is the creation of spatial models based on photogrammetric and lidar data. This review analyzes the current possibilities of UAVs and provides an overview of their history, development, classification, regulation, and application in surveying.
APPLIED SCIENCES-BASEL
(2023)
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.
Article
Environmental Sciences
Jerry C. Mock, Jeffrey B. Johnson, Armando Pineda, Gustavo Bejar, Amilcar Roca
Summary: This study quantified erosional and depositional processes for secondary lahars in Las Lajas drainage at Volcan de Fuego, Guatemala. The study found that abundant pyroclastic material from ongoing eruptive activity is remobilized seasonally during heavy precipitation, which can impact infrastructure and populations living near Fuego. The researchers used an unoccupied aerial vehicle (UAV) quadcopter to survey an agricultural zone 6 to 10 km from the summit, and processed the imagery into time-lapse digital elevation models (DEMs) to track channel morphology changes over time.
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
Adrian Martinez-Fernandez, Enrique Serrano, Alfonso Pisabarro, Manuel Sanchez-Fernandez, Jose Juan de Sanjose, Manuel Gomez-Lende, Gizeh Rangel-de Lazaro, Alfonso Benito-Calvo
Summary: This study examines the impact of image format and properties on the accuracy of high-detail surveys of complex geometric landforms. The results show that certain image properties can significantly alter the geometry of photo-reconstructions, which can have implications for monitoring activities.
Article
Chemistry, Analytical
Mariusz Pasik, Krzysztof Bakula, Sebastian Rozycki, Wojciech Ostrowski, Maria Elzbieta Kowalska, Anna Fijalkowska, Marcin Rajner, Slawomir Lapinski, Ireneusz Sobota, Marek Kejna, Katarzyna Osinska-Skotak
Summary: This study focuses on the changes in range and thickness of glaciers in ASPA No. 128 on King George Island in Antarctica from 1956 to 2015. The research shows that the retreat process of glaciers intensified in the last two decades, with the rate depending on the type of glacier front and influenced by rapid temperature increase and glacier surface longitudinal slope.
Article
Remote Sensing
Artur Gafurov
Summary: This paper presents the results of surveying the Sarycum area of the Dagestan Nature Reserve of Russia with a DJI Phantom 4 UAV and methodological recommendations for conducting work on such a large territory. The obtained DEM with 0.5 m resolution and ultrahigh resolution orthophotoplane allow for assessing aeolian processes dynamics at a qualitatively different level.
Article
Geography, Physical
Rakesh Bhambri, Kenneth Hewitt, Umesh K. Haritashya, Pritam Chand, Amit Kumar, Akshaya Verma, Sameer Kumar Tiwari, Santosh Kumar Rai
Summary: This paper addresses the interactions between tributary and trunk glaciers in the Karakoram region using various methods including digital elevation models, surface displacement, field observations, and archival reports. It explores the behavior and impacts of tributary glacier surges on main trunk glaciers, revealing the unique characteristics and effects of these surges on glacier dynamics, morphology, debris distribution, and hypsography. The findings highlight the importance of studying and monitoring the distinct responses of surging glaciers and individual tributaries in order to better understand the heterogeneity of these glaciers in Karakoram.
Article
Environmental Sciences
Shreya Yadav, Ty N. F. Roach, Michael J. J. McWilliam, Carlo Caruso, Mariana Rocha de Souza, Catherine Foley, Corinne Allen, Jenna Dilworth, Joel Huckeba, Erika P. P. Santoro, Renee Wold, Jacquelyn Simpson, Spencer Miller, Joshua R. R. Hancock, Crawford Drury, Joshua S. S. Madin
Summary: This study used structure-from-motion photogrammetry to track coral bleaching, mortality, and changes in community composition during the 2019 marine heatwave in Kaneohe Bay, Hawaii. The results showed that spatial and taxonomic heterogeneity in coral bleaching and mortality were influenced by environmental variation, habitat complexity, and differences in assemblage composition.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Geography, Physical
Shashank Bhushan, David Shean, Oleg Alexandrov, Scott Henderson
Summary: The text discusses the potential of the Planet SkySat-C SmallSat constellation in acquiring high-resolution imagery for 3D mapping, but highlights limitations in processing software and geolocation accuracy. The authors propose an open-source workflow to refine camera models and improve image geolocation, resulting in accurate DEMs with high vertical accuracy. The study demonstrates the scalability of the workflow for batch processing of SkySat stereo imagery and its potential for other frame camera systems with limited initial geolocation accuracy.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Niccolo Dematteis, Daniele Giordan, Bruno Crippa, Oriol Monserrat
Summary: Measuring glacier elevation change is crucial for various purposes, such as estimating glacier mass balance, calibrating climate models, and assessing the impact of global warming. In this study, we explored the potential of clinometry as a technique to quantify glacier elevation changes. By analyzing shadow positions in monoscopic optical images, we were able to measure a glacier thinning rate of -1.9 +/- 1.7 ma(-1) between 2017 and 2021 for the Aletsch Glacier (Switzerland), consistent with previous observations.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2023)
Article
Environmental Sciences
Rafael Walter Albuquerque, Manuel Eduardo Ferreira, Soren Ingvor Olsen, Julio Ricardo Caetano Tymus, Cintia Palheta Balieiro, Hendrik Mansur, Ciro Jose Ribeiro Moura, Joao Vitor Silva Costa, Mauricio Ruiz Castello Branco, Carlos Henrique Grohmann
Summary: This study evaluates the use of low-cost RPA technology for FR monitoring in the Brazilian Atlantic Forest, demonstrating accurate measurement of structural parameters such as Tree Density, Tree Height, Vegetation Cover, and Grass Infestation. While structural parameters can be accurately measured, challenges persist in classifying tree species for assessing biodiversity using remote sensing methods.
Article
Geosciences, Multidisciplinary
Yushuo Liu, Dahe Qin, Yanzhao Li, Xiang Qin, Zhenlin Li, Jing Wang, Zizhen Jin, Lihui Wang
Summary: The study assesses the volume and cumulative mass balance of the Laohugou glacier No. 12 (LHG12) in the Qilian Mountains from 1957 to 2015. The results show that LHG12 has experienced significant shrinking due to strong melting and accelerated ablation since 1989. The study also suggests that rising temperatures, especially in autumn and winter, may contribute to the increased sensitivity of LHG12 to climate change.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
Daniele Ventura, Luca Grosso, Davide Pensa, Edoardo Casoli, Gianluca Mancini, Tommaso Valente, Michele Scardi, Arnold Rakaj
Summary: This study evaluated an integrated approach using low-cost unmanned aerial and surface vehicles to collect detailed remote sensing data and accurately map shallow benthic communities. Photogrammetric outputs from UAV and USV were classified using OBIA approach and achieved overall classification accuracies over 70%. The results demonstrated the practicality and feasibility of using aerial and underwater ultra-high spatial resolution imagery for detailed analysis.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Andreas Kellerer-Pirklbauer, Viktor Kaufmann
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Geography, Physical
Andreas Kellerer-Pirklbauer, Bernd Kulmer
EARTH SURFACE PROCESSES AND LANDFORMS
(2019)
Article
Geography, Physical
Andreas Kellerer-Pirklbauer
PERMAFROST AND PERIGLACIAL PROCESSES
(2019)
Article
Water Resources
Julia Eulenstein, Andreas Kellerer-Pirklbauer
HYDROLOGICAL SCIENCES JOURNAL
(2020)
Article
Environmental Sciences
Gernot Seier, Stefan Schoettl, Andreas Kellerer-Pirklbauer, Raphael Glueck, Gerhard K. Lieb, Daniel N. Hofstadler, Wolfgang Sulzer
Article
Geography, Physical
Andreas Kellerer-Pirklbauer, Julia Eulenstein
Summary: The air temperatures in Europe in 2022 were the highest on record for the summer season. This study focused on the effects of recent warming on permafrost and periglacial conditions in the Eastern Alps. The results indicate that summer ground surface temperatures have increased, frost-related weathering and periglacial processes have decreased, and there has been a significant change in permafrost conditions at the Hochtor site.
PERMAFROST AND PERIGLACIAL PROCESSES
(2023)
Article
Geography, Physical
Andreas Kellerer-Pirklbauer, Michael Avian, Douglas Benn, Felix Bernsteiner, Philipp Krisch, Christian Ziesler
Summary: Research on Pasterze Glacier in Austria from 1998 to 2019 reveals exponential growth of proglacial lakes, indicating the evolution process and potential hazards. The study suggests that rapid growth of proglacial lakes in warming climates can have significant impacts, including outburst flood hazards and accelerated ice mass loss.
Article
Geography, Physical
Matthias Rode, Oliver Sass, Andreas Kellerer-Pirklbauer, Harald Schnepfleitner, Christoph Gitschthaler