A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data
Aurora, the spectacular phenomenon commonly occurring in high latitudes, is caused by the precipitation of energetic particles penetrating the Earth’s atmosphere. Being the result of solar-terrestrial interactions, electron precipitation significantly contributes to auroral production. To evaluate i...
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ftdoajarticles:oai:doaj.org/article:9e14c8cb9b174e9ebc6f1657776d01a5 2023-05-15T13:45:56+02:00 A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data Wanqiu Kong Zejun Hu Jiaji Wu Tan Qu Gwanggil Jeon 2020-07-01T00:00:00Z https://doi.org/10.3390/rs12142259 https://doaj.org/article/9e14c8cb9b174e9ebc6f1657776d01a5 EN eng MDPI AG https://www.mdpi.com/2072-4292/12/14/2259 https://doaj.org/toc/2072-4292 doi:10.3390/rs12142259 2072-4292 https://doaj.org/article/9e14c8cb9b174e9ebc6f1657776d01a5 Remote Sensing, Vol 12, Iss 2259, p 2259 (2020) aurora atmospheric electron transport auroral energy hyperspectral data DMSP SSJ5 Science Q article 2020 ftdoajarticles https://doi.org/10.3390/rs12142259 2022-12-31T12:48:50Z Aurora, the spectacular phenomenon commonly occurring in high latitudes, is caused by the precipitation of energetic particles penetrating the Earth’s atmosphere. Being the result of solar-terrestrial interactions, electron precipitation significantly contributes to auroral production. To evaluate its magnitude, a physical quantity describing the characteristics of precipitating auroral electrons—their characteristic energy—is adopted. In this paper, this quantity is derived from joint data observed by the ground-based auroral spectroscopic imager located in Antarctica Zhongshan Station and the particle detectors “Special Sensor J5 (SSJ5)” on the Defense Meteorological Satellite Program (DMSP) satellites. A postprocessing scheme of ground-based spectral data is proposed to infer the characteristic energy that successively uses classical brute-force, recursive brute-force and self-consistent approximation strategies for step-up speed improvement. Then, the inferred characteristic energies are compared to the average energies calibrated from the relevant electron data detected by SSJ5 to confirm whether this inference is valid. Regarding DMSP F18/SSJ5, these two energy estimations about auroral electrons deviate slightly from each other and show a strong linear relationship. It sheds light on further applications of the valuable aurora spectral data. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Zhongshan ENVELOPE(76.371,76.371,-69.373,-69.373) Zhongshan Station ENVELOPE(76.371,76.371,-69.373,-69.373) Remote Sensing 12 14 2259 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
aurora atmospheric electron transport auroral energy hyperspectral data DMSP SSJ5 Science Q |
spellingShingle |
aurora atmospheric electron transport auroral energy hyperspectral data DMSP SSJ5 Science Q Wanqiu Kong Zejun Hu Jiaji Wu Tan Qu Gwanggil Jeon A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data |
topic_facet |
aurora atmospheric electron transport auroral energy hyperspectral data DMSP SSJ5 Science Q |
description |
Aurora, the spectacular phenomenon commonly occurring in high latitudes, is caused by the precipitation of energetic particles penetrating the Earth’s atmosphere. Being the result of solar-terrestrial interactions, electron precipitation significantly contributes to auroral production. To evaluate its magnitude, a physical quantity describing the characteristics of precipitating auroral electrons—their characteristic energy—is adopted. In this paper, this quantity is derived from joint data observed by the ground-based auroral spectroscopic imager located in Antarctica Zhongshan Station and the particle detectors “Special Sensor J5 (SSJ5)” on the Defense Meteorological Satellite Program (DMSP) satellites. A postprocessing scheme of ground-based spectral data is proposed to infer the characteristic energy that successively uses classical brute-force, recursive brute-force and self-consistent approximation strategies for step-up speed improvement. Then, the inferred characteristic energies are compared to the average energies calibrated from the relevant electron data detected by SSJ5 to confirm whether this inference is valid. Regarding DMSP F18/SSJ5, these two energy estimations about auroral electrons deviate slightly from each other and show a strong linear relationship. It sheds light on further applications of the valuable aurora spectral data. |
format |
Article in Journal/Newspaper |
author |
Wanqiu Kong Zejun Hu Jiaji Wu Tan Qu Gwanggil Jeon |
author_facet |
Wanqiu Kong Zejun Hu Jiaji Wu Tan Qu Gwanggil Jeon |
author_sort |
Wanqiu Kong |
title |
A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data |
title_short |
A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data |
title_full |
A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data |
title_fullStr |
A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data |
title_full_unstemmed |
A Comparative Study of Estimating Auroral Electron Energy from Ground-Based Hyperspectral Imagery and DMSP-SSJ5 Particle Data |
title_sort |
comparative study of estimating auroral electron energy from ground-based hyperspectral imagery and dmsp-ssj5 particle data |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/rs12142259 https://doaj.org/article/9e14c8cb9b174e9ebc6f1657776d01a5 |
long_lat |
ENVELOPE(76.371,76.371,-69.373,-69.373) ENVELOPE(76.371,76.371,-69.373,-69.373) |
geographic |
Zhongshan Zhongshan Station |
geographic_facet |
Zhongshan Zhongshan Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Remote Sensing, Vol 12, Iss 2259, p 2259 (2020) |
op_relation |
https://www.mdpi.com/2072-4292/12/14/2259 https://doaj.org/toc/2072-4292 doi:10.3390/rs12142259 2072-4292 https://doaj.org/article/9e14c8cb9b174e9ebc6f1657776d01a5 |
op_doi |
https://doi.org/10.3390/rs12142259 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
14 |
container_start_page |
2259 |
_version_ |
1766232790071771136 |