Reconciling vertical datum for seamless hydrographic data integration

Lihua Zhang; Qing Zhu; Jingyang Bao; Yanchun Liu

doi:10.1117/12.651372

2 December 2005 Reconciling vertical datum for seamless hydrographic data integration

Lihua Zhang, Qing Zhu, Jingyang Bao, Yanchun Liu

Proceedings Volume 6045, MIPPR 2005: Geospatial Information, Data Mining, and Applications; 604520 (2005) https://doi.org/10.1117/12.651372
Event: MIPPR 2005 SAR and Multispectral Image Processing, 2005, Wuhan, China

Abstract

A reconciling vertical datum is fundamental for the seamless integration of multi-source hydrographic data. Based on the analyses of the current vertical datums used for hydrograph, this paper presents a new scheme to create a reconciling vertical datum. To resolve the problem of integrating geospatial data referred to different vertical surfaces, an ellipsoidal datum is adopted as a universal master reference surface; A (quasi) hydroid is defined and the method which determine the quasi hydroid is then introduced; The quasi geoid and hydroid are adopted as client datums. On the basis of the determination between the master datum and the client datums, the data derived from different datums can be aggregated seamlessly and discretionarily. Two methods which can transform depth data from one vertical datum to another when quickly aggregating hydrographic data are suggested, one is identical transformation parameters based on hierarchical grid, and the other is interpolation based on position.

Citation Download Citation

Lihua Zhang, Qing Zhu, Jingyang Bao, and Yanchun Liu "Reconciling vertical datum for seamless hydrographic data integration", Proc. SPIE 6045, MIPPR 2005: Geospatial Information, Data Mining, and Applications, 604520 (2 December 2005); https://doi.org/10.1117/12.651372

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available