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TitleDetermining coastal mean dynamic topography by geodetic methods
AuthorHuang, J
SourceGeophysical Research Letters vol. 44, 2017 p. 11125-11128, https://doi.org/10.1002/2017GL076020 (Open Access)
Year2017
Alt SeriesNatural Resources Canada, Contribution Series 20170255
PublisherWiley-Blackwell
Documentserial
Lang.English
Mediapaper; on-line; digital
File formatpdf
SubjectsScience and Technology; coastal studies; remote sensing; geodesy; satellite geodesy; coastal environment; Cryosat-2; coastal Mean Dynamic Topography (MDT); goeid determination; satellite altimetry
Illustrationsschematic diagrams
ProgramCanadian Spatial Reference System, Geodetic Survey
Released2017 11 04
AbstractIn geodesy, coastal mean dynamic topography (MDT) was traditionally determined by spirit leveling technique. Advances in navigation satellite positioning (e.g., GPS) and geoid determination enable space-based leveling with an accuracy of about 3 cm at tide gauges. Recent CryoSat-2, a satellite altimetry mission with synthetic aperture radar (SAR) and SAR interferometric measurements, extends the space-based leveling to the coastal ocean with the same accuracy. However, barriers remain in applying the two space-based geodetic methods for MDT determination over the coastal ocean because current geoid modeling focuses primarily on land as a substitute to spirit leveling to realize the vertical datum.
Summary(Plain Language Summary, not published)
In geodesy, coastal Mean Dynamic Topography (MDT) was traditionally determined by spirit levelling technique. Advances in navigation satellite positioning (e.g., GPS) and geoid determination enable space-based levelling with an accuracy of about 3 cm at tide gauges. Recent CryoSat-2, a satellite altimetry mission with Synthetic Aperture Radar (SAR) and SAR interferometric measurements, extends the space-based levelling to the coastal ocean with the same accuracy. However, barriers remain in applying the two space-based geodetic methods for MDT determination over the coastal ocean because current geoid modelling focuses primarily on land as a substitute to spirit levelling to realize the vertical datum.
GEOSCAN ID306164