Search Results - "Howard, Allen Q"
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Four Methods for LIDAR Retrieval of Microscale Wind Fields
Published in Remote sensing (Basel, Switzerland) (01-08-2012)“…This paper evaluates four wind retrieval methods for micro-scale meteorology applications with volume and time resolution in the order of 30m3 and 5 s. Wind…”
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Electric dipole scattering from a finitely conducting cylinder
Published in Journal of applied geophysics (01-05-2023)“…•Electromagnetic scattering of cylindrical structures in applied geophysics.•Frequency domain analytic solution of an electric dipole.•Fourier–Bessel series as…”
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Complex plane integration in the modelling of electromagnetic fields in layered media: part 2. Pole location
Published in Journal of geophysics and engineering (01-02-2014)“…This part 2 companion paper derives several related methods to determine pole location for guided electromagnetic waves in a planarly layered medium in the…”
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Complex plane integration in the modelling of electromagnetic fields in layered media: part 1. Application to a very large loop
Published in Journal of geophysics and engineering (01-02-2014)“…This paper analyses the details of a procedure for the numerical integration of Hankel transforms in the calculation of the electromagnetic fields generated by…”
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Petrophysics of magnetic dipole fields in an anisotropic earth
Published in IEEE transactions on antennas and propagation (01-09-2000)“…Measurement-while-drilling (MWD) resistivity log data are often acquired in highly deviated or horizontal holes. The loop sensors are located on the drill…”
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A new correction to the Born approximation
Published in IEEE transactions on geoscience and remote sensing (01-05-1990)“…A correction to the Born approximation for the apparent conductivity (induced voltage) in a layered medium is derived. The correction involves a single…”
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On Resolution in Geophysical Probing Using Electromagnetic Methods
Published in IEEE transactions on geoscience and remote sensing (01-01-1983)“…A model of a surface magnetic loop induction scheme over a two layer earth with fixed parameters, is developed. Using this model, formulas and curves are…”
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Transient Response from a Thin Sheet in a Conductive Medium for Loop Excitation
Published in IEEE transactions on geoscience and remote sensing (01-03-1986)“…An analytical method to predict the electromagnetic step function response of a thin sheet anomaly in the Earth is given. Insight is provided for the…”
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On the longitudinal component of the Green's function dyadic
Published in Proceedings of the IEEE (01-01-1974)“…Discussion of the divergenceless property of the right-hand side of the dyadic-wave equation for the Green's dyad has centered on the inconsistency of…”
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10
Synthesis of EM geophysical tomographic data
Published in Proceedings of the IEEE (01-02-1986)“…In order to test tomographic inversion schemes under controlled conditions, we have developed a forward electromagnetic model, using the volume current method…”
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On approximating Fourier integral transforms by their discrete counterparts in certain geophysical applications
Published in IEEE transactions on antennas and propagation (01-03-1975)“…In the past, fast Fourier transforms (FFT's) have been used in geophysical data analysis and, with some success, in theoretical analysis. However, in the…”
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A comparison of mode match, geometrical theory of diffraction, and Kirchhoff radiation
Published in IEEE transactions on antennas and propagation (01-01-1973)“…Using as a model a parallel-plate flanged waveguide excited by a uniform magnetic line source, the techniques of mode match, geometrical theory of diffraction,…”
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