A geocentric vertical datum for coastal geospatial data infrastructure construction

Shuangxi Wang; Wenqian Huang; Di Wu; Min Liu

doi:10.1117/12.775278

10 November 2007 A geocentric vertical datum for coastal geospatial data infrastructure construction

Shuangxi Wang, Wenqian Huang, Di Wu, Min Liu

Proceedings Volume 6795, Second International Conference on Space Information Technology; 679570 (2007) https://doi.org/10.1117/12.775278
Event: Second International Conference on Spatial Information Technology, 2007, Wuhan, China

Abstract

Seamless data for coastal mapping and management is an essential element of coastal spatial data, especially when data sources have different accuracy, age and quality. Many applications of geospatial data in coastal zone require the knowledge of the near-shore topography and bathymetry. The coastal mappers are looking for the methods to merge both topographic and bathymetric data, but the current mismatch in vertical surfaces causes difficulties. In order to obtain accurate geospatial information for coastal geospatial data infrastructure construction, a more stable reference datum should be established. This study introduces a seamless geocentric Vertical Datum, and then an ellipsoidal datum is adopted as vertical reference surface. The reference ellipsoid that is most related to GPS is WGS84 and it is used in this paper as the stable reference surface. In coastal application area, WGS-84 datum will be selected to manage data seamlessly. This reference ellipsoidal is chosen as the fundamental vertical reference surface and transformation surface. The geospatial data cannot be integrated without datum conversion. This paper presents a strategy to seamlessly integrate geospatial data in coastal areas.

Citation Download Citation

Shuangxi Wang, Wenqian Huang, Di Wu, and Min Liu "A geocentric vertical datum for coastal geospatial data infrastructure construction", Proc. SPIE 6795, Second International Conference on Space Information Technology, 679570 (10 November 2007); https://doi.org/10.1117/12.775278

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