Results 81 to 90 of about 36,013 (265)

Establishing a Multibeam Sonar Evaluation Test Bed near Sidney, British Columbia [PDF]

, 2012
The Canadian Hydrographic Service (CHS), Naval Oceanographic Office (NAVOCEANO) and the Ocean Mapping Group of the University of New Brunswick (OMG) collaborated on establishing a multibeam sonar test bed in the vicinity of the Institute of Ocean ...
Beaudoin, Jonathan, Clarke, J.E. Hughes, Hare, Rob, Whittaker, Clay   +3 more
core   +2 more sources

Targeted herbicide spraying systems: role of nozzle type, number of nozzle activation, nozzle orientation, and boom height on spray coverage and weed control

Pest Management Science, EarlyView.
Targeted herbicide application technology performance depends on sprayer configuration. Across five studies, activation of multiple, overlapping nozzles and maintaining appropriate boom height consistently improved spray coverage and weed control, highlighting the importance of optimized sprayer setup for effective and reliable weed control.
Zaim Ugljic, Ahmadreza Mobli, Ryan DeWerff, Rodrigo Werle   +3 more
wiley   +1 more source

First Processing of the Complete Sentinel-1 SAR Archive: 10 Years of Global Sea State

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this study, the sea state was estimated and analyzed by processing the ten-year worldwide Sentinel-1 synthetic aperture radar (SAR) archive 2014−2024. The approx. 15 Petabytes of data contain approx. 4.2 million SAR scenes, where approx.
Andrey Pleskachevsky, Bjorn Tings, Christoph Schnupfhagn, Stefan Wiehle, Sven Jacobsen   +4 more
doaj   +1 more source

Medicane characteristics from high‐resolution satellite radar observations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study uses high‐resolution observations from satellite synthetic aperture radar (SAR) to reveal that medicanes, cyclones with tropical features in the Mediterranean basin, have dynamical characteristics with attributes comparable with those of tropical cyclones of similar intensities, but smaller outer sizes and Rossby numbers.
Arthur Avenas, Mario Marcello Miglietta, Alexis Mouche, Stavros Dafis, Aurélien Colin, Romain Husson, Emmanouil Flaounas   +6 more
wiley   +1 more source

A self-sustaining autonomous system for long-term Arctic monitoring

Applied Ocean Research
Long-term observation and data collection are necessary to understand the impact of the accelerated melting of Arctic sea ice on marine ecosystems in the Arctic.
Wenqiang Xu, Tsung-Chow Su
doaj   +1 more source

U.S. Law of the Sea Cruise to Complete the Mapping of Necker Ridge, Central Pacific Ocean [PDF]

, 2011
U.S. Law of the Sea Cruise to Complete the Mapping of Necker Ridge, Central Pacific Ocean CRUISE KM1121 July 31, to August 10, 2011 Honolulu, HI to Honolulu ...
Calder, Brian R., Gardner, James V.
core   +2 more sources

All‐sky assimilation impacts of the Tomorrow.io microwave sounder constellation on global weather forecasts

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Key Findings: An assimilation methodology is established for the Tomorrow.io microwave sounder (TMS) flying on CubeSats in sun‐synchronous and inclined orbits, and in all cloud scenes. The TMS has a significant impact on weather forecast lead times up to 3 days in the Tropics in a research‐quality numerical weather prediction setting, and yields water ...
Jonathan J. Guerrette, Ryan Honeyager, Stephen Joseph Munchak, Xiaoxu Tian   +3 more
wiley   +1 more source

Moisture inversions in the central Arctic: Product assessment and long‐wave radiative effect

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study evaluates the integrated water vapour and the vertical distribution of water vapour of state‐of‐the‐art reanalyses, weather forecast models, and ground‐ and space‐based remote‐sensing products in the central Arctic. A particular focus lies on the representation of humidity inversions and the quantification of the long‐wave radiative effect ...
Andreas Walbröl, Susanne Crewell, Carola Barrientos‐Velasco, Giovanni Chellini, Hannes J. Griesche, Janna E. Rückert, Kerstin Ebell   +6 more
wiley   +1 more source

Derivation of Sea Surface Wind Directions from TerraSAR-X Data Using the Local Gradient Method

Remote Sensing, 2016
Derivation of sea surface wind direction is a key step of sea surface wind retrieval from spaceborne Synthetic Aperture Radar (SAR) data. This technical note describes an implementation of the Local Gradient (LG) method to derive sea surface wind ...
Yi-Ran Wang, Xiao-Ming Li
doaj   +1 more source

Redefining Optimal Coverage Path Planning for FLS‐Equipped AUVs With Deep Reinforcement Learning

Journal of Field Robotics, EarlyView.
ABSTRACT Autonomous Underwater Vehicles (AUVs) have emerged as indispensable tools for a variety of subsea tasks, from habitat monitoring and seabed mapping to infrastructure inspection and mine countermeasures. A fundamental challenge in this field is Coverage Path Planning (CPP), the problem of ensuring complete and efficient area coverage.
Lorenzo Cecchi, Alberto Topini, Alessandro Bucci, Alessandro Ridolfi   +3 more
wiley   +1 more source