Results 131 to 140 of about 687,437 (141)

Rapid versus slow intensification of idealized tropical cyclones using soundings from reanalysis

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Climatologically averaged environmental wind and moisture around intensifying tropical cyclones are used in an idealized model to further discriminate differences between ensembles of rapidly (RI) and slowly (SI) intensifying storms. On average, RI storms have lower vertical tilt, are more axisymmetric, and less ventilated at onset than SI storms, and ...
Samantha Nebylitsa   +3 more
wiley   +1 more source

A consistent coupling of two‐moment microphysics and bulk ice optical properties, and its impact on radiation in a regional weather model

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents a novel, consistent coupling of two‐moment microphysics (i.e., ice mass mixing ratio and number) with bulk ice optical properties, providing improved accuracy in radiative transfer simulations. The parametrisations, based on the mass‐equivalent spherical radius, avoid uncertainties associated with the effective radius by directly ...
Anthony J. Baran   +4 more
wiley   +1 more source

Deep Reinforcement Learning‐Based Control for Real‐Time Hybrid Simulation of Civil Structures

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Real‐time Hybrid Simulation (RTHS) is a cyber‐physical technique that studies the dynamic behavior of a system by combining physical and numerical components that are coupled through a boundary condition enforcer. In structural engineering, the numerical components are subjected to environmental loads that become dynamic displacements of the ...
Andrés Felipe Niño   +6 more
wiley   +1 more source

Near real‐time monitoring of wading birds using uncrewed aircraft systems and computer vision

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Developments in aerial survey methods and computer vision models allow for wildlife population monitoring over large areas. A key limitation to these approaches for active monitoring is the slow process of converting imagery into data. Near real‐time monitoring is crucial for management decisions and ecological forecasting.
Ethan P. White   +8 more
wiley   +1 more source

A comparison of established and digital surface model (DSM)‐based methods to determine population estimates and densities for king penguin colonies, using fixed‐wing drone and satellite imagery

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We used fixed‐wing drones and Beyond Visual Line of Sight flying to create high‐resolution imagery and Digital Surface Models (DSMs) of six large king penguin colonies (colony population sizes ranging from 10,671 to 132,577 pairs) in South Georgia. We used a novel DSM‐based method to facilitate automated and semi‐automated counts of each colony to ...
J. Coleman   +8 more
wiley   +1 more source

Automated extraction of right whale morphometric data from drone aerial photographs

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Aerial photogrammetry is a popular non‐invasive method for measuring marine mammal body size, body morphometrics, and body condition, but processing large datasets efficiently remains challenging. We developed a machine learning algorithm using Mask R‐CNN models to automatically measure body morphometrics of southern right whales from aerial ...
Chhandak Bagchi   +4 more
wiley   +1 more source

Hyperspectral imagery, LiDAR point clouds, and environmental DNA to assess land‐water linkage of biodiversity across aquatic functional feeding groups

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Functional feeding groups (FFGs) are key components sustaining ecosystem functioning in riverine ecosystems. In this study, we conducted an airborne imaging spectroscopy campaign and a systematic environmental DNA (eDNA) river water sampling in a 740‐km2 mountainous catchment, combined with light detection and ranging (LiDAR) point clouds, to obtain ...
Heng Zhang   +7 more
wiley   +1 more source

Night lights from space: potential of SDGSAT‐1 for ecological applications

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Our study emphasizes the importance of advancing ALAN monitoring from space for ecology and conservation, and it highlights the novel opportunities of SDGSAT‐1. We discuss shortcomings that need to be resolved and identify promising avenues for sound ecological impact assessments of ALAN on ecosystems using space‐borne remote sensing.
Dominique Weber   +9 more
wiley   +1 more source

Hyperspectral imaging has a limited ability to remotely sense the onset of beech bark disease

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Although hyperspectral imaging is a powerful remote sensing tool, it proved ineffective in predicting the progression of beech bark disease, except in its later stages, both at the canopy and leaf levels. While some alterations in chlorophyll, water content, and canopy structure may have influenced foliar reflectance at the canopy scale, as suggested ...
Guillaume Tougas   +3 more
wiley   +1 more source

Revenue Management to Maximize Global Network Revenue for a Satellite Communication Operator

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The satellite communication (SatCom) industry is rapidly expanding, with supply growing much faster than demand, potentially straining market prices and company stability. Effective revenue management (RM) can help operators optimize the use of limited and expensive satellite resources.
Skylar Eiskowitz   +3 more
wiley   +1 more source

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