1 Nguyen Van Sang
2 Popadyev V.V.

Hanoi University of Mining and Geology


Center of Geodesy, Cartography and SDI

Mean Dynamic Topography (MDT) is the difference between mean sea surface height and geoid. Satellite altimetry data are known as sea surface height (ellipsoidal height), including geoid height, Mean Dynamic Topography and dynamic sea surface topography ht. To determine Mean Dynamic Topography from satellite altimetry data, the geoid height and dynamic sea surface topography should be removed from sea surface height. In this study, geoid height was computed from spherical harmonic coefficients of global Earth Gravity Model (EGM-2008). ht was determined using technique of tracks crossover adjustment. Finally, gridded model of Mean Dynamic Topography was established by using mean-squares prediction technique. By experimental processing and analysis, the gridded model of Mean Dynamic Topography had successfully built 5′ × 5′, named HUMG16MDT, for East Sea, using data of three altimetric satellites, namely TOPEX/POSEIDON, ENVISAT and JASON-2. For control purposes, this model was compared with the measurements on nine tidal stations, the computed estimation of standard deviation 15,5 cm.
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Nguyen Van Sang, 
Popadyev V.V., 
(2017) Sozdanie modeli sredney dinamicheskoy topografii moria na akvatorii Vietnama po dannym al’timetrii TOPEX/POSEIDON, ENVISAT i JASON-2 [Development of the mean sea dynamic topography on the Vietnam water area based on TOPEX/POSEIDON, ENVISAT and JASON-2 DATA]. Geodesy and Cartography = Geodezija i kartografija, 78, 7, pp. 9-14. (In Russian). DOI: 10.22389/0016-7126-2017-925-7-9-14
Received: 11.04.2017
Accepted: 15.06.2017
Published: 18.08.2017


2017 July DOI:

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