An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images
We have been studying reconstruction of auroral 3-D luminous structure from stereo images. We have used the model function method for this problem. In this method, auroral structure is expressed by an appropriate function with some parameters, which are determined by iterative calculations. The auro...
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ftdoajarticles:oai:doaj.org/article:549a0047bf054649b9b84bfbcf56447c 2023-05-15T13:47:52+02:00 An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images Tetsuro Yabu Takehiko Aso Takeshi Hashimoto Minoru Abe Masaki Ejiri 1993-11-01T00:00:00Z https://doi.org/10.15094/00008819 https://doaj.org/article/549a0047bf054649b9b84bfbcf56447c EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00008819 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008819 0085-7289 2432-079X https://doaj.org/article/549a0047bf054649b9b84bfbcf56447c Antarctic Record, Vol 37, Iss 3, Pp 231-251 (1993) Geography (General) G1-922 article 1993 ftdoajarticles https://doi.org/10.15094/00008819 2022-12-31T12:06:16Z We have been studying reconstruction of auroral 3-D luminous structure from stereo images. We have used the model function method for this problem. In this method, auroral structure is expressed by an appropriate function with some parameters, which are determined by iterative calculations. The auroral model assumes sheet-like luminosity structure with some prescribed thickness and altitude distributions. In this paper, we present an upgraded model function which can express an aurora of more complicated structure. The upgraded model is expressed by the product of a 2-D function which represents projections of an aurora along the geomagnetic lines of force onto the horizontal plane and an altitude function along the geomagnetic line of force. Using this model, curved aurora arcs and pulsating auroras of irregular form can be more properly delineated. In this paper, we analyze the aurora arc observed in Iceland and a pulsating aurora observed in Antarctica. At the same time, we examine the appropriateness of the functional form which expresses the altitude profile of the luminosity of aurora based on theoretical prediction. Article in Journal/Newspaper Antarc* Antarctica Iceland Directory of Open Access Journals: DOAJ Articles |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English Japanese |
topic |
Geography (General) G1-922 |
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Geography (General) G1-922 Tetsuro Yabu Takehiko Aso Takeshi Hashimoto Minoru Abe Masaki Ejiri An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images |
topic_facet |
Geography (General) G1-922 |
description |
We have been studying reconstruction of auroral 3-D luminous structure from stereo images. We have used the model function method for this problem. In this method, auroral structure is expressed by an appropriate function with some parameters, which are determined by iterative calculations. The auroral model assumes sheet-like luminosity structure with some prescribed thickness and altitude distributions. In this paper, we present an upgraded model function which can express an aurora of more complicated structure. The upgraded model is expressed by the product of a 2-D function which represents projections of an aurora along the geomagnetic lines of force onto the horizontal plane and an altitude function along the geomagnetic line of force. Using this model, curved aurora arcs and pulsating auroras of irregular form can be more properly delineated. In this paper, we analyze the aurora arc observed in Iceland and a pulsating aurora observed in Antarctica. At the same time, we examine the appropriateness of the functional form which expresses the altitude profile of the luminosity of aurora based on theoretical prediction. |
format |
Article in Journal/Newspaper |
author |
Tetsuro Yabu Takehiko Aso Takeshi Hashimoto Minoru Abe Masaki Ejiri |
author_facet |
Tetsuro Yabu Takehiko Aso Takeshi Hashimoto Minoru Abe Masaki Ejiri |
author_sort |
Tetsuro Yabu |
title |
An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images |
title_short |
An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images |
title_full |
An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images |
title_fullStr |
An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images |
title_full_unstemmed |
An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images |
title_sort |
upgraded method for reconstructing 3-dimensional structure of aurora from stereo images |
publisher |
National Institute of Polar Research |
publishDate |
1993 |
url |
https://doi.org/10.15094/00008819 https://doaj.org/article/549a0047bf054649b9b84bfbcf56447c |
genre |
Antarc* Antarctica Iceland |
genre_facet |
Antarc* Antarctica Iceland |
op_source |
Antarctic Record, Vol 37, Iss 3, Pp 231-251 (1993) |
op_relation |
http://doi.org/10.15094/00008819 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008819 0085-7289 2432-079X https://doaj.org/article/549a0047bf054649b9b84bfbcf56447c |
op_doi |
https://doi.org/10.15094/00008819 |
_version_ |
1766247966347100160 |