| Title | Determining coastal mean dynamic topography by geodetic methods |
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| Author | Huang, J |
| Source | Geophysical Research Letters vol. 44, 2017 p. 11125-11128, https://doi.org/10.1002/2017GL076020  Open Access |
| Image |  |
| Year | 2017 |
| Alt Series | Natural Resources Canada, Contribution Series 20170255 |
| Publisher | Wiley-Blackwell |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Subjects | Science and Technology; coastal studies; remote sensing; geodesy; satellite geodesy; coastal environment; Cryosat-2; coastal Mean Dynamic Topography (MDT) |
| Illustrations | schematic diagrams |
| Program | Geodetic Survey Canadian
Spatial Reference System |
| Released | 2017 11 04 |
| Abstract | In 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 ID | 306164 |
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