WL
Member Since 2012
William J. Longley
Research Professor, New Jersey Institute of Technology
AGU Research
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FARR: An Open-source Code for Modeling Radio Wave Propagation in Earth's Ionosphere
OBSERVATIONAL AND MODELING STUDIES OF IONOSPHERIC IRREGULARITIES AND SCINTILLATION I POSTER
spa-aeronomy | 12 december 2024
Alexander Green, William J. Longley, Matthew Young...
Radio wave propagation in Earths ionosphere is routinely disrupted by interactions with ionospheric irregularities, leading to both phase and amplitud...
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A Statistical Study of Ion Temperature Anisotropy Using AMISR Data
MAGNETOSPHERE-IONOSPHERE-THERMOSPHERE COUPLING DURING DISTURBED TIMES I POSTER
spa-aeronomy | 11 december 2024
Aidan Thayer, Lindsay V. Goodwin, William J. Longl...
One of the longstanding problems in ionospheric science is that we typically assume the F-region ion temperature to be an isotropic Maxwellian, meanin...
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Non-resonant density fluctuations detected by Arecibo
ADVANCES IN GEOSPACE SCIENCE FROM REMOTE SENSING II POSTER
spa-aeronomy | 11 december 2024
William J. Longley, Lindsay V. Goodwin, Juha Vieri...
Thomson scatter radars have successfully measured plasma parameters in the ionosphere for over sixty years. Fundamentally, the radars measure increase...
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Probing distorted ion velocity distributions using AMISRs and Monte-Carlo simulations
ADVANCES IN GEOSPACE SCIENCE FROM REMOTE SENSING II POSTER
spa-aeronomy | 11 december 2024
Chirag Skolar, Lindsay V. Goodwin, William J. Long...
It is commonly assumed that the ion velocity distribution in the high-latitude F-region ionosphere is an isotropic Maxwellian. However, resonant O+-O ...
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Estimating Quasi-linear Diffusion Coefficients for Varying Values of Density Ratio
RADIATION BELT DYNAMICS: WAVE-PARTICLE INTERACTIONS AND RADIATION BELT MODELING IV POSTER
spa-magnetospheric physics | 10 december 2024
Jay Albert, William J. Longley, Anthony A. Chan
We consider a method for estimating bounce-averaged quasi-linear diffusion coefficients for a specified value of density ratio (plasma frequency to gy...
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Particle losses in the Van Allen radiation belts: Quantifying precipitation and magnetopause losses
RADIATION BELT DYNAMICS: WAVE-PARTICLE INTERACTIONS AND RADIATION BELT MODELING II ORAL
spa-magnetospheric physics | 09 december 2024
Scot R. Elkington, Anthony A. Chan, Suhail Aldhura...
Particle fluxes in the Van Allen radiation belts vary as a result of a complex balance of acceleration, transport, and loss processes. One dominant lo...
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The Generation of 150 km Echoes Through Nonlinear Wave Mode Coupling
GEOPHYSICAL RESEARCH LETTERS
26 march 2024
William J. Longley
A fundamental problem in plasma turbulence is understanding how energy cascades across multiple scales. In this paper, a new weak turbulence theory...
Simulating radio wave propagation and scintillation at the smallest scales
OBSERVATIONAL AND MODELING STUDIES OF IONOSPHERIC IRREGULARITIES AND SCINTILLATION II ORAL
spa-aeronomy | 15 december 2023
William J. Longley, Alexander Green, Meers M. Oppe...
At high latitudes the gradient-drift instability creates plasma turbulence across multiple spatial scales, leading to strong scintillation for GNSS an...
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