Recovery of orthometric heights from ellipsoidal heights using offsets method over Japan

• 資料種別: 記事
• タイトル: Recovery of orthometric heights from ellipsoidal heights using offsets method over Japan
• 著者・編者: Patroba Achola Odera; Yoichi Fukuda
• 出版事項: 日本 : Springer science+business media
• 出版年月日等: 2015-08-21
• 出版年（W3CDTF）: 2015-08-21
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 67(134)
• 掲載巻: 67(134)
• ISSN（掲載誌）: 1880-5981
• ISSN-L（掲載誌）: 1343-8832
• 本文の言語コード: eng
• DOI: 10.1186/s40623-015-0306-z; https://doi.org/10.1186/s40623-015-0306-z
• 国立国会図書館永続的識別子: info:ndljp/pid/9534503; https://dl.ndl.go.jp/pid/9534503
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他; https://dl.ndl.go.jp/collections/B00035
• 収集根拠: オンライン資料収集制度
• 受理日（W3CDTF）: 2015-11-16T20:25:38+09:00
• 保存日（W3CDTF）: 2015-10-20
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: https://www.earth-planets-space.com/content?page=1&itemsPerPage=100
• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/9227920; https://dl.ndl.go.jp/pid/9227920
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• 要約等: One of the most important applications of a geoid model is a recovery of orthometric heights from ellipsoidal heights (normally obtained from GNSS). The application of the geoid model for recovering orthometric heights from ellipsoidal heights is normally achieved by fitting the geoid model to a local vertical datum. The fitting procedure is usually accomplished by least squares collocation (LSC), using planar or spherical covariance functions. This procedure warps the gravimetric geoid model onto the local vertical datum, hence the local geoid model derived by this procedure, though convenient for local applications, it is not an equipotential surface. We propose offsets method for practical orthometric height recovery from a geoid model. The proposed procedure is more realistic because it does not constrain the local geoid to be coincident to the local vertical datum. We compare the performance of plannar fitting and offsets methods over Japan using a cross-validation procedure. Results show that offsets method performs better than the normally used planar fitting in the recovery of orthometric heights from ellipsoidal heights using a geoid model. The standard deviations of the differences between established and converted orthometric heights at randomly selected GPS/levelling test points over Japan are ±4 and ±3 cm for planar fitting and offsets methods, respectively. The offsets method is therefore more appropriate for converting ellipsoidal heights to orthometric heights than the planar fitting in the area of study.
• DOI: 10.1186/s40623-015-0306-z; https://doi.org/10.1186/s40623-015-0306-z
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © 2015 Odera and Fukuda. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
• 関連情報（URI）: http://hdl.handle.net/2433/212450; http://id.ndl.go.jp/digimeta/9534503; https://dl.ndl.go.jp/pid/9534503
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; CiNii Articles
• 書誌ID（NDLBibID）: 9534503; http://id.ndl.go.jp/bib/9534503
• NII論文ID: 120005758195