ELF radar system proposed for localized D-region ionospheric anomalies

Jamesina J. Simpson; Allen Taflove

doi:10.1109/LGRS.2006.878443

ELF radar system proposed for localized D-region ionospheric anomalies

Jamesina J. Simpson^*, Allen Taflove

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

This letter proposes a novel extremely low frequency (ELF) radar for localized D-region (altitude < 95 km) ionospheric anomalies that have been generated by natural geophysical processes. The proposed system would use the former U.S. Navy Wisconsin Transmitting Facility as a distant well-characterized impulsive ELF source. Sample calculations that demonstrate how passive vertical E-field detectors could characterize ionospheric conductivity depressions of variable diameter located above Los Angeles are provided. These calculations have been obtained using our recently developed three-dimensional whole-Earth electromagnetic wave propagation model based upon the rigorous finite-difference time-domain solution of Maxwell's equations. A key potential application of the proposed ELF radar system is the detection of hypothesized ionospheric earthquake precursors.

Original language	English (US)
Article number	1715304
Pages (from-to)	500-503
Number of pages	4
Journal	IEEE Geoscience and Remote Sensing Letters
Volume	3
Issue number	4
DOIs	https://doi.org/10.1109/LGRS.2006.878443
State	Published - Oct 2006
Externally published	Yes

Keywords

Earthquakes
Extremely low frequency (ELF)
Finite difference time domain (FDTD)
Ionospheric disturbances
Radar
Remote sensing

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Electrical and Electronic Engineering

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10.1109/LGRS.2006.878443

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title = "ELF radar system proposed for localized D-region ionospheric anomalies",

abstract = "This letter proposes a novel extremely low frequency (ELF) radar for localized D-region (altitude < 95 km) ionospheric anomalies that have been generated by natural geophysical processes. The proposed system would use the former U.S. Navy Wisconsin Transmitting Facility as a distant well-characterized impulsive ELF source. Sample calculations that demonstrate how passive vertical E-field detectors could characterize ionospheric conductivity depressions of variable diameter located above Los Angeles are provided. These calculations have been obtained using our recently developed three-dimensional whole-Earth electromagnetic wave propagation model based upon the rigorous finite-difference time-domain solution of Maxwell's equations. A key potential application of the proposed ELF radar system is the detection of hypothesized ionospheric earthquake precursors.",

keywords = "Earthquakes, Extremely low frequency (ELF), Finite difference time domain (FDTD), Ionospheric disturbances, Radar, Remote sensing",

author = "Simpson, {Jamesina J.} and Allen Taflove",

note = "Funding Information: Manuscript received March 17, 2006; revised April 19, 2006. This work was supported by the Pittsburgh Supercomputing Center under Grant EAR050012P. The authors are with the Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208 USA (e-mail: j-simpson@northwestern.edu). Digital Object Identifier 10.1109/LGRS.2006.878443",

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AU - Simpson, Jamesina J.

AU - Taflove, Allen

N1 - Funding Information: Manuscript received March 17, 2006; revised April 19, 2006. This work was supported by the Pittsburgh Supercomputing Center under Grant EAR050012P. The authors are with the Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208 USA (e-mail: j-simpson@northwestern.edu). Digital Object Identifier 10.1109/LGRS.2006.878443

PY - 2006/10

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N2 - This letter proposes a novel extremely low frequency (ELF) radar for localized D-region (altitude < 95 km) ionospheric anomalies that have been generated by natural geophysical processes. The proposed system would use the former U.S. Navy Wisconsin Transmitting Facility as a distant well-characterized impulsive ELF source. Sample calculations that demonstrate how passive vertical E-field detectors could characterize ionospheric conductivity depressions of variable diameter located above Los Angeles are provided. These calculations have been obtained using our recently developed three-dimensional whole-Earth electromagnetic wave propagation model based upon the rigorous finite-difference time-domain solution of Maxwell's equations. A key potential application of the proposed ELF radar system is the detection of hypothesized ionospheric earthquake precursors.

AB - This letter proposes a novel extremely low frequency (ELF) radar for localized D-region (altitude < 95 km) ionospheric anomalies that have been generated by natural geophysical processes. The proposed system would use the former U.S. Navy Wisconsin Transmitting Facility as a distant well-characterized impulsive ELF source. Sample calculations that demonstrate how passive vertical E-field detectors could characterize ionospheric conductivity depressions of variable diameter located above Los Angeles are provided. These calculations have been obtained using our recently developed three-dimensional whole-Earth electromagnetic wave propagation model based upon the rigorous finite-difference time-domain solution of Maxwell's equations. A key potential application of the proposed ELF radar system is the detection of hypothesized ionospheric earthquake precursors.

KW - Earthquakes

KW - Extremely low frequency (ELF)

KW - Finite difference time domain (FDTD)

KW - Ionospheric disturbances

KW - Radar

KW - Remote sensing

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JF - IEEE Geoscience and Remote Sensing Letters

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ER -

ELF radar system proposed for localized D-region ionospheric anomalies

Abstract

Keywords

ASJC Scopus subject areas

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