Results 31 to 40 of about 307 (169)

Climate‐Driven Mangrove Dieback and Recovery: A Case Study in Albert and Leichhardt Rivers, Australia

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Cycles of dieback and recovery drove mangrove forest dynamics at the Albert and Leichhardt Rivers (Gulf of Carpentaria, Queensland, Australia) over 36 years (1987–2023). Landward margins were the most affected by reduced tidal inundation when the alignment of low lunar declination suppressed tidal range and extreme El Niño phases lowered mean sea level.
Rogerio Victor S. Gonçalves   +4 more
wiley   +1 more source

Characterization of the Use and Occupation of Soil on Rural Properties Using Remotely Piloted Aircraft Systems - RPAS [PDF]

open access: yesInternational Journal of Advanced Engineering Research and Science, 2018
The use of remotely piloted aircraft systems allows for practicality in the collection and monitoring of study areas or in the development of rehabilitation projects for degraded areas. As such, this technology is gaining space as an alternative for applications in studies and surveys of several areas.
Ivan Carlos Bertoldo   +3 more
openaire   +1 more source

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

open access: yesWildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund   +3 more
wiley   +1 more source

Outcrop and subsurface characterisation of a mixed tidal and wave‐influenced coastline (Triassic Red Beds, SE Spain)

open access: yesSedimentology, EarlyView.
ABSTRACT Paralic depositional systems are complex and heterogeneous sedimentary environments, presenting challenges for predicting reservoir architecture and connectivity. Their stratigraphic and facies variability arises from the dynamic interplay between fluvial, tidal and wave processes, and their sensitivity to sea‐level fluctuations, sediment ...
Luis Miguel Yeste   +4 more
wiley   +1 more source

Revolutionizing RPAS logistics and reducing CO2 emissions with advanced RPAS technology for delivery systems

open access: yesCleaner Logistics and Supply Chain
To manage remotely piloted aircraft system (RPAS) networks effectively, this research presents a multi-objective location-routing optimization model. This model integrates time window constraints, concurrent pick-up and delivery demands, and rechargeable
Armin Mahmoodi   +4 more
doaj   +1 more source

DAAMSIM: A simulation framework for establishing detect and avoid SYSTEM requirements

open access: yesDrone Systems and Applications, 2022
Performance requirements for detect, alert, and avoid (DAA) systems for remotely piloted aircraft systems (RPAS) are under development by many regulatory agencies and standards bodies.
Iryna Borshchova, Kristopher Ellis
doaj   +1 more source

Determination of the Sample Size of Linear Features Used in Cartographic Quality Control Through Monte Carlo Simulation

open access: yesTransactions in GIS, Volume 30, Issue 5, August 2026.
ABSTRACT In sampling‐based process, sample size is always a debated topic. To assess positional accuracy using points, there are several studies and standards that determine what sample size should be used. However, for positional control using lines, there is no knowledge of a study that indicates the sample size.
Marconi Martins Cunha   +3 more
wiley   +1 more source

The Influence of Territory Quality on Behavioral Activity, Mass Loss, and Tenure in Breeding Male Australian Fur Seals

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Territory quality is a key determinant of male reproductive success and an important driver of population dynamics in pinnipeds. In Australian fur seals (Arctocephalus pusillus doriferus; AUFS), males rely on pre‐breeding energy reserves to acquire and maintain territories, linking competitive ability to body size and condition.
Johanna J. Geeson, John P. Y. Arnould
wiley   +1 more source

A Post-Accident Analysis of Civil Remotely-Piloted Aircraft System Accidents and Incidents

open access: yesJournal of Aerospace Technology and Management, 2017
A sample of 152 accidents and incidents involving Remotely Piloted Aircraft Systems, more commonly referred to as “drones”, have been analysed. The data was collected from a 10-year period, 2006 to 2015, conveniently sourced from a limited population ...
Graham Wild   +4 more
doaj  

Documentation of Urn Graves of Knovíz Culture by RPAS

open access: yesGeoinformatics FCE CTU, 2016
This paper deals with the documentation, positional determination of urn graves of the Knovíz culture (1200 - 1000 BC), and geometric and positional determination of tumulus at the archaeological site located near the village Ctiněves, in the Usti region
Jaroslav Šedina   +2 more
doaj   +1 more source

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