Results 41 to 50 of about 1,305 (171)

Estimating Body Lengths of Airborne Insects Using S-Band Polarimetric Weather Radar

Remote Sensing
Weather radars enable the monitoring of airborne insects over spatial scales ranging from hundreds to thousands of kilometers. Quantitative information on migration intensity and spatial distribution can be obtained from weather radar observations ...
Kai Cui, Xinyu Li, Weidong Li, Jiayi Li, Xichao Dong, Rui Wang, Cheng Hu   +6 more
doaj   +1 more source

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

Journal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini, Lorenzo Guerrini, Marco Fontanelli, Lucia Bortolini   +3 more
wiley   +1 more source

Validation of a Particle Image Velocimetry Algorithm Through Comparative Field and Laboratory Analysis

River Research and Applications, EarlyView.
ABSTRACT Flow velocity measurement is fundamental to hydrological and hydraulic studies, providing essential data for streamflow estimation and river dynamics analysis. Traditional in situ methods like propeller gauges and acoustic Doppler current profilers are accurate but intrusive and labour‐intensive, while non‐intrusive image processing methods ...
Ghazaleh Nassaji Matin, Gareth Bradbury, Alan Puttock, Kirsty Frith, Diego Panici   +4 more
wiley   +1 more source

Ground Clutter Suppression with Dual-threshold Controlled Method for Airborne Weather Radar

Leida xuebao, 2013
In this paper, a new method of dual-threshold controlled adaptive clutter suppression is proposed for airborne weather radar which is operated in wind shear mode.
Han Yan-fei, Wu Ren-biao, Li Hai
doaj   +1 more source

Airborne laser scan data: a valuable tool with which to infer weather radar partial beam blockage in urban environments [PDF]

Atmospheric Measurement Techniques, 2016
High-spatial-resolution weather radar observations are of primary relevance for hydrological applications in urban areas. However, when weather radars are located within metropolitan areas, partial beam blockages and clutter by buildings can seriously ...
R. Cremonini, D. Moisseev, V. Chandrasekar   +2 more
doaj   +1 more source

Monitoring wildlife using long‐endurance solar‐electric UAVs

Wildlife Biology, EarlyView.
This report discusses the effectiveness of using small solar‐electric UAV (uncrewed aerial vehicles) for aerial wildlife monitoring. We review four years of aerial wildlife monitoring missions using a 5.5‐m wingspan, solar‐electric UAV that was equipped with a gimballed IR/RGB camera.
Götz Bramesfeld, William Bissonnette, Maya Rahaman‐Noronha, Kanwar Johal   +3 more
wiley   +1 more source

Radio Vision Systems Ensuring Movement Safety for Ground, Airborne and Sea Vehicles

Journal of Telecommunications and Information Technology, 2018
This article presents the features of an all-weather radio vision system (RVS) ensuring the safety of movement of ground, airborne and sea vehicles and automation of vehicle traffic control under limited or non-existent visibility conditions.
Andrey E. Ananenkov, Anton V. Konovaltsev, Vladimir M. Nuzhdin, Vladimir V. Rastorguev, Pavel V. Sokolov   +4 more
doaj   +1 more source

THE POTENTIAL OF BUILDING DETECTION FROM SAR AND LIDAR USING DEEP LEARNING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The introduction of airborne Synthetic Aperture Radar (SAR) approach has successfully addressed several challenges for mapping and surveying applications Unlike other conventional sensors, airborne SAR mapping approach offers practicality and significant
Z. Nordin, H. Z. M. Shafri, A. F. Abdullah, S. J. Hashim   +3 more
doaj   +1 more source

The Role of Lightning in Atmospheric Chemistry

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Lightning has important effects on atmospheric constituents in primarily the middle and upper troposphere. We summarize the effects of lightning on atmospheric chemistry that have been published since the last major review in 2007. The estimates of NOx production by lightning (LNOx) are based on five methods: theoretical/laboratory estimates ...
Kenneth E. Pickering, Dale J. Allen, Heidi Huntrieser   +2 more
wiley   +1 more source

Portable and Easily-Deployable Air-Launched GPR Scanner

Remote Sensing, 2020
In recent years, Unmanned Aerial Vehicles (UAV)-based Ground Penetrating Radar (GPR) systems have been developed due to their advantages for safe and fast detection of Improvised Explosive Devices (IEDs) and landmines.
María García-Fernández, Yuri Álvarez López, Alessandro De Mitri, David Castrillo Martínez, Guillermo Álvarez-Narciandi, Fernando Las-Heras Andrés   +5 more
doaj   +1 more source