Unmanned Aerial Vehicle Technology for Glaciology Research in the Third Pole

Drones, Год журнала: 2025, Номер 9(4), С. 254 - 254

Опубликована: Март 27, 2025

The Third Pole region contains vast glaciers, and changes in these glaciers profoundly affect the lives development of billions people. Therefore, accurate glacier monitoring this is great scientific practical significance. Unmanned Aerial Vehicles (UAVs) provide high-resolution observation capabilities flexible deployment options, effectively overcoming certain limitations associated with traditional situ satellite remote sensing observations. Thus, UAV technology increasingly gaining traction application glaciology community. This review systematically analyzed studies involving research determined that relevant have been performed for a decade (2014–2024). Notably, after 2020, number manuscripts has increased significantly. Research activities are biased toward use rotary-wing UAVs (63%) ground control point (GCP) correction methods (67%). Additionally, there strong emphasis on analyzing surface elevation, velocity, landform evolution. These primarily concentrated Himalayan region, relatively less being conducted western central areas. significantly contributed to holds potential enhance future studies.

Язык: Английский

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Remote Sensing Technologies for Monitoring Argane Forest Stands: A Comprehensive Review

Geographies, Год журнала: 2024, Номер 4(3), С. 441 - 461

Опубликована: Июль 26, 2024

This comprehensive review explores the ecological significance of Argane stands (Argania spinosa) in southwestern Morocco and pivotal role remote sensing technology monitoring forest ecosystems. stands, known for their resilience semi-arid arid conditions, serve as a keystone species, preventing soil erosion, maintaining balance, providing habitat sustenance to diverse wildlife species. Additionally, they produce an extremely valuable oil, offering economic opportunities cultural local communities. Remote tools, including satellite imagery, LiDAR, drones, radar, GPS precision, have revolutionized our capacity remotely gather data on health, cover, responses environmental changes. These technologies provide precise insights into canopy structure, density, individual tree enabling assessments stand populations detection abiotic stresses, biodiversity, conservation evaluations. Furthermore, plays crucial vegetation productivity, drought stress, contributing sustainable land management practices. underscores transformative impact safeguarding ecosystems, particularly highlights its potential continued advancements research efforts.

Язык: Английский

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Satellite Radar and Camera Time Series Reveal Transition from Aligned to Distributed Crater Arrangement during the 2021 Eruption of Cumbre Vieja, La Palma (Spain)

Remote Sensing, Год журнала: 2022, Номер 14(23), С. 6168 - 6168

Опубликована: Дек. 6, 2022

Magma-filled dikes may feed erupting fissures that lead to alignments of craters developing at the surface, yet details activity and migrating eruptions crater row are difficult monitor hardly understood. The 2021 Tajogaite eruption Cumbre Vieja, La Palma (Spain), lasted 85 days developed a pronounced alignment be related changes within volcano edifice. Here, we use COSMO-SkyMed satellite radar data ground-based time-lapse photographs, offering high-resolution dataset explore locations characteristics evolving craters. Our results show evolve both gradually suddenly can divided into three main phases. Phase 1, lasting first 6 weeks eruption, was characterized by NW–SE linear evolution up seven emerging on growing cone. Following two partial collapses cone northwest seismicity increase depth, 2 started caused propagation toward southeastern side, together with presence 11 along this trend. Associated strong deep shallow earthquakes, 3 initiated continued for final expressed development 18 craters, which became dominant clustered in sector early December 2021. In 3, second oblique surface fracture identified. findings coincide an seismic depth point driver leading morphology surface. These also suggest distributions might allow improved monitoring occurring vice versa, such herald migration new formation have major implications assessment tephra lava flow hazards volcanoes.

Язык: Английский

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Fish mortality associated to volcanic eruptions in the Canary Islands

Frontiers in Marine Science, Год журнала: 2023, Номер 9

Опубликована: Янв. 16, 2023

The Canary Islands are an active volcanic archipelago. In the last decade, activity has occurred twice on youngest and western most islands: El Hierro (submarine eruption) in 2011-12, La Palma (subaerial 2021. 70 fish specimens of different species from volcano 14 were necropsied. A notable high early mortality fishes was registered during submarine eruption Hierro. them, generalized congestion gills, liver, spleen, kidney, heart rete mirabile swim bladder observed. Some also presented exophthalmia, gastric eversion, ocular haemorrhages, over-inflation gas bubbles mainly skin cornea. characterized by emission large amounts lava flows pyroclastic deposits (mainly ash size) both, land sea. Lava flowed eventually reached sea, forming deltas coastline Palma. This event associated with increase locations near to deltas. Fishes particles opercula/oral cavities gills. addition, several intense intestinal impaction composed material including ashes hyaloclastites fragments. To our best knowledge this study describes, for first time, pathological findings dead two styles recent eruptions Islands.

Язык: Английский

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Rapid provision of maps and volcanological parameters: quantification of the 2021 Etna volcano lava flows through the integration of multiple remote sensing techniques

Bulletin of Volcanology, Год журнала: 2023, Номер 85(10)

Опубликована: Сен. 13, 2023

Abstract At active volcanoes recurring eruptive events, erosive processes and collapses modify the edifice morphology impact monitoring hazard mitigation. Etna volcano (Italy) between February October 2021, 57 paroxysmal events occurred from South-East Crater (SEC), which is currently its most summit crater. Strombolian activity high lava fountains (up to 4 km) fed flows towards east, south south-west, caused fallout of ballistics (greater than 1 m in diameter) within 1–2 km SEC. The impacted area does not include permanent infrastructure, but it visited by thousands tourists. Hence, we rapidly mapped each flow before deposits became covered next event, for frequency SEC paroxysms necessitated integration data three remote sensing platforms with different spatial resolutions. Satellite (Sentinel-2 MultiSpectral Instrument, PlanetScope, Skysat Landsat-8 Operational Land Imager) drone images (visible thermal) were processed integrated extract digital surface models orthomosaics. Thermal acquired a network cameras Istituto Nazionale di Geofisica e Vulcanologia orthorectified using latest available model. This multi-sensor analysis allowed compilation geodatabase reporting main geometrical parameters flow. A posteriori quantification bulk volumes changes dense rock equivalent volume erupted magma. drone-derived enabled assessment ballistics’ distribution. developed methodology accurate characterisation frequently occurring effusive near real-time risk communication.

Язык: Английский

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Active Faults, Kinematics, and Seismotectonic Evolution during Tajogaite Eruption 2021 (La Palma, Canary Islands, Spain)

Applied Sciences, Год журнала: 2024, Номер 14(7), С. 2745 - 2745

Опубликована: Март 25, 2024

During the 2021 La Palma strombolian and fissure eruption, two faults were identified that controlled spatial distribution of earthquake hypocenters effusive eruptive vents. One these has a NW-SE trend (Tazacorte Fault: TZF) other one shows an ENE-WSW (Mazo MZF). Previous works on fault structural analysis in indicated eruption zone was compatible with extensional tectonic strain ellipsoid which activated normal-strike-slip directional at confluence TZF MZF. These fractures during Tajogaite determining WSW-ENE Both mapped real time volcanic from fieldwork remote sensing imagery (aerial drone images). We have collected more than 300 fracture data associated vents post-eruption seismic creep. Since affected area densely inhabited, most affect houses infrastructures. Some by damaged 9 months after although they not eruption. Surprisingly, already had repairs made to same since 1980, giving information previous creep movement. shallow seismicity spatially related both faults, suggesting behavior instead precedent However, lack indicates went back aseismic behavior, similarly 1980. The mapping monitoring (TZF MZF) is relevant bearing mind been active 1980 post-eruptive phase be included land use planning areas Furthermore, could act as seismogenic sources triggering earthquakes potential high macroseismic intensities mass movements. presented here show importance having this type study before onset thus allowing better interpretation unrest.

Язык: Английский

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THE MOUNT MARAPI ERUPTION DISASTER EVACUATION PATH MODEL USING A LOCAL WISDOM APPROACH

International Journal of Geomate, Год журнала: 2024, Номер 26(116)

Опубликована: Апрель 29, 2024

This research focuses on the slopes of an active volcano, seeing its importance in studying disaster mitigation, especially evacuation routes, to minimize fatality during a volcanic eruption.Determining routes using local wisdom is used as guide for communities around mountain safeguard themselves event eruption.This aims model eruption evaluation pathway approach.This employs mixed-method approach, combining quantitative and qualitative methods process analyze relevant variables.The ultimate output map illustrating routes.For vulnerability analysis related disasters, this uses with Maximum Entropy algorithm.The identifies slope environmental variable highest gain when isolation, suggesting significant informational value.The modeling was 12 th iteration 25 test replications, AUC training data reaching value 0.877 0.932, indicating highly effective results.In addition, from community plays crucial role recognizing impending signs, emphasis observing natural symptoms surrounding environment.The people Nagari Batu Palano do not have specific social traditions eruptions.Instead, their primary response involves surrendering God seeking safe place if occurs.In relation saltwater pools, there need further studies establish reliability information produced.

Язык: Английский

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Assessment of Carbon Sink and Carbon Flux in Forest Ecosystems: Instrumentation and the Influence of Seasonal Changes

Remote Sensing, Год журнала: 2024, Номер 16(13), С. 2293 - 2293

Опубликована: Июнь 23, 2024

Accurate measurement and estimation of forest carbon sinks fluxes are essential for developing effective national global climate strategies aimed at reducing atmospheric concentrations mitigating change. Various errors arise during monitoring, especially instability due to seasonal variations, which require be adequately addressed in ecosystem research applications. Seasonal fluctuations temperature, precipitation, aerosols, solar radiation can significantly impact the physical observations mapping equipment or platforms, thereby data’s accuracy. Here, we review technologies used monitoring across different remote sensing including ground-based, airborne, spaceborne sensing. We further investigate uncertainties introduced by variations observing equipment, compare strengths weaknesses various technologies, propose corresponding solutions recommendations. aim gain a comprehensive understanding on accuracy map data, improving fluxes.

Язык: Английский

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Deception Island 1967–1970 Volcano Eruptions from Historical Aerial Frames and Satellite Imagery (Antarctic Peninsula)

Remote Sensing, Год журнала: 2023, Номер 15(8), С. 2052 - 2052

Опубликована: Апрель 13, 2023

Aerial frames and satellite imagery are widely recognized data sources from which to produce maps. For volcanoes, maps enable the quantification of erupted ash destruction caused. The last eruptive sequence on Deception Island was endured 1967 1970. Analogue were produced via classical photogrammetric methods with a high degree human intervention mainly analyse volcanic-centres areas only. However, historical aerial cover whole Island. Structure motion photogrammetry, near-automated compilation digital image processing strategies, minimizes orthographic mosaics elevation models frames. Orthographic 1956 1968, Kompsat-3 2020. Their shared root-mean-square deviation 1.8 m 1.7 in easting northing, respectively, at ground control points measured phase-differential global navigation systems. processed 2.3 3.6 1968 frames, respectively. As first application, ashfall subsequent destruction, former Chilean British bases, identified, volume assessed be over 0.16 km3 within area mapped by these new cartographic products.

Язык: Английский

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Morphosedimentary characteristics and formation mechanisms of new beaches generated after the Tajogaite volcano eruption of 2021 (La Palma, Spain)

Marine Geology, Год журнала: 2023, Номер 462, С. 107099 - 107099

Опубликована: Июль 7, 2023

Only in very special circumstances can new beaches develop due to natural processes areas where they did not exist before. One such circumstance is related volcanic eruptions, when a lava flow reaches the ocean. The sudden formation of examined this paper. Following Tajogaite volcano eruption September 2021, two deltas formed after arrival several flows coast. Attached flanks and front these deltas, thirteen gravel just few months. Detailed topographic sedimentologic information was collected both on adjacent submarine areas. volume sediments accumulated obtained comparison actual topography with previous one, yielding total net accumulation about 79,000 m3 volcanoclastic pebbles cobbles. This material comes from major source areas: extensive offshore deposits clasts within depth closure which are moved onshore by low steepness swell waves, rock fragments derived erosion delta high energy waves. Two types were identified. Beaches that already existed prior showed significant increases cross-shore length height, 67,000 m3. In contrast, dismantling led totally certain locations, accounting for 12,000 sediments. Several features, as steep foreshore slope, well-developed storm berm presence wood debris many at meters height tens inland, conjointly sediment characteristics, showing how textural maturity change response forcing agents acting different parts beach profile. future evolution also considered. study enrich knowledge regarding form settings.

Язык: Английский

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