IEICE TRANSACTIONS on Communications
Propagation Characteristics of ELF/VLF Electromagnetic Waves in the Martian Ionosphere and the Possibility for Detection of Martian Atmospherics by NOZOMI Observations
Summary :
A feasibility study has been made of the detection possibility of radio wave noises, i.e., Martian atmospherics, emitted from discharges in the Martian atmosphere during large dust storms. The spacecraft NOZOMI, which was launched in 1998, is to be placed on an elliptic orbit around Mars with perigee of 150-200 km. An onboard-equipment LFA (Low Frequency Plasma wave Analyzer) has capability to measure the low frequency plasma waves in the frequency range from 10 Hz to 32 kHz. In order to know if the LFA can detect the atmospheric radio noises, the propagation characteristics of electromagnetic waves through the Martian ionosphere are studied theoretically by using a full-wave method. The ionosphere is modeled as a magneto-ionic medium based on the recent observations of magnetic anomaly by Mars Global Surveyor spacecraft, and the atmospheric constituent and electron density by Viking observations. Our calculation shows that the waves at frequencies less than a hundred hertz can propagate with low attenuation and reach to altitudes above 200 km in the whistler-mode in the regions of magnetic anomalies in the dayside ionosphere. It is shown that the radio noises emitted from electric discharge in an intense dust storm, with the intensity over -30 dBV/m/
- Publication
- IEICE TRANSACTIONS on Communications Vol.E84-B No.3 pp.653-659
- Publication Date
- 2001/03/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Antenna and Propagation
Authors
Toshimi OKADA
Satoshi YAGITANI
Isamu NAGANO
Tomohiko IMACHI
Misaki MUKAINO
Yasumasa KASABA
Hiroshi MATSUMOTO
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Toshimi OKADA, Satoshi YAGITANI, Isamu NAGANO, Tomohiko IMACHI, Misaki MUKAINO, Yasumasa KASABA, Hiroshi MATSUMOTO, "Propagation Characteristics of ELF/VLF Electromagnetic Waves in the Martian Ionosphere and the Possibility for Detection of Martian Atmospherics by NOZOMI Observations" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 3, pp. 653-659, March 2001, doi: .
Abstract: A feasibility study has been made of the detection possibility of radio wave noises, i.e., Martian atmospherics, emitted from discharges in the Martian atmosphere during large dust storms. The spacecraft NOZOMI, which was launched in 1998, is to be placed on an elliptic orbit around Mars with perigee of 150-200 km. An onboard-equipment LFA (Low Frequency Plasma wave Analyzer) has capability to measure the low frequency plasma waves in the frequency range from 10 Hz to 32 kHz. In order to know if the LFA can detect the atmospheric radio noises, the propagation characteristics of electromagnetic waves through the Martian ionosphere are studied theoretically by using a full-wave method. The ionosphere is modeled as a magneto-ionic medium based on the recent observations of magnetic anomaly by Mars Global Surveyor spacecraft, and the atmospheric constituent and electron density by Viking observations. Our calculation shows that the waves at frequencies less than a hundred hertz can propagate with low attenuation and reach to altitudes above 200 km in the whistler-mode in the regions of magnetic anomalies in the dayside ionosphere. It is shown that the radio noises emitted from electric discharge in an intense dust storm, with the intensity over -30 dBV/m/
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_3_653/_p
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@ARTICLE{e84-b_3_653,
author={Toshimi OKADA, Satoshi YAGITANI, Isamu NAGANO, Tomohiko IMACHI, Misaki MUKAINO, Yasumasa KASABA, Hiroshi MATSUMOTO, },
journal={IEICE TRANSACTIONS on Communications},
title={Propagation Characteristics of ELF/VLF Electromagnetic Waves in the Martian Ionosphere and the Possibility for Detection of Martian Atmospherics by NOZOMI Observations},
year={2001},
volume={E84-B},
number={3},
pages={653-659},
abstract={A feasibility study has been made of the detection possibility of radio wave noises, i.e., Martian atmospherics, emitted from discharges in the Martian atmosphere during large dust storms. The spacecraft NOZOMI, which was launched in 1998, is to be placed on an elliptic orbit around Mars with perigee of 150-200 km. An onboard-equipment LFA (Low Frequency Plasma wave Analyzer) has capability to measure the low frequency plasma waves in the frequency range from 10 Hz to 32 kHz. In order to know if the LFA can detect the atmospheric radio noises, the propagation characteristics of electromagnetic waves through the Martian ionosphere are studied theoretically by using a full-wave method. The ionosphere is modeled as a magneto-ionic medium based on the recent observations of magnetic anomaly by Mars Global Surveyor spacecraft, and the atmospheric constituent and electron density by Viking observations. Our calculation shows that the waves at frequencies less than a hundred hertz can propagate with low attenuation and reach to altitudes above 200 km in the whistler-mode in the regions of magnetic anomalies in the dayside ionosphere. It is shown that the radio noises emitted from electric discharge in an intense dust storm, with the intensity over -30 dBV/m/
keywords={},
doi={},
ISSN={},
month={March},}
Copy
TY - JOUR
TI - Propagation Characteristics of ELF/VLF Electromagnetic Waves in the Martian Ionosphere and the Possibility for Detection of Martian Atmospherics by NOZOMI Observations
T2 - IEICE TRANSACTIONS on Communications
SP - 653
EP - 659
AU - Toshimi OKADA
AU - Satoshi YAGITANI
AU - Isamu NAGANO
AU - Tomohiko IMACHI
AU - Misaki MUKAINO
AU - Yasumasa KASABA
AU - Hiroshi MATSUMOTO
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2001
AB - A feasibility study has been made of the detection possibility of radio wave noises, i.e., Martian atmospherics, emitted from discharges in the Martian atmosphere during large dust storms. The spacecraft NOZOMI, which was launched in 1998, is to be placed on an elliptic orbit around Mars with perigee of 150-200 km. An onboard-equipment LFA (Low Frequency Plasma wave Analyzer) has capability to measure the low frequency plasma waves in the frequency range from 10 Hz to 32 kHz. In order to know if the LFA can detect the atmospheric radio noises, the propagation characteristics of electromagnetic waves through the Martian ionosphere are studied theoretically by using a full-wave method. The ionosphere is modeled as a magneto-ionic medium based on the recent observations of magnetic anomaly by Mars Global Surveyor spacecraft, and the atmospheric constituent and electron density by Viking observations. Our calculation shows that the waves at frequencies less than a hundred hertz can propagate with low attenuation and reach to altitudes above 200 km in the whistler-mode in the regions of magnetic anomalies in the dayside ionosphere. It is shown that the radio noises emitted from electric discharge in an intense dust storm, with the intensity over -30 dBV/m/
ER -
English
