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Detection of sea floor structures off the Gunnerus ridge
https://doi.org/10.15094/00003097
https://doi.org/10.15094/00003097bba24fd8-da07-427f-a93f-b028bc55d4c1
名前 / ファイル | ライセンス | アクション |
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KJ00000044215 (1.2 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2001-10-01 | |||||
タイトル | ||||||
タイトル | Detection of sea floor structures off the Gunnerus ridge | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | gravity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | satellite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | altimetry | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00003097 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Terada,Kumiko
× Terada,Kumiko× Fukuda ,Yoichi× Nogi,Yoshihumi |
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著者所属(英) | ||||||
en | ||||||
Graduate school of Science, Kyoto University/Graduate school of Science, Kyoto University/National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We produced a new gravity anomaly image around Antarctica to derive detailed sea floor information from 10 Hz sampled satellite altimetry data. From the obtained gravity image, we extracted linear features, by applying a combination of binarization, clustering and thinning techniques. In the South Indian Ocean, we recognized several lineaments located off the Gunnerus ridge. We also extracted a feature running in the middle of these lineaments and assume it to be a fossil ridge. These features suggest that the direction of spreading changed during the early stage of sea floor spreading between Antarctica and India. We applied the same image processing techniques to the gravity images processed by high-cut filtering, but the ridge-like feature can not be detected from these images. Differences between processed results indicate that the gravity images obtained in our work preserve more detailed information at short wavelength. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1130866X | |||||
書誌情報 |
Polar geoscience 巻 14, p. 235-243, 発行日 2001-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |