[1] Estimation of ice sheet mass balance from satellite altimetry requires interpolation of point-scale elevation change (dH/dt) data over the area of interest. The largest dH/dt values occur over narrow, fast-flowing outlet glaciers, where data coverage of current satellite altimetry is poorest. In those areas, straightforward interpolation of data is unlikely to reflect the true patterns of d...

Satellite radar altimetry has made unique contributions to global and coastal gravity field recovery. This paper starts with a general introduction followed by the progress of satellite technology. Then, methods marine recovery dominating models are described briefly. Finally, typical compared shipboard measurements evaluate their accuracies in offshore regions China. The root mean squares devi...

Rising sea levels pose one of the greatest threats to coastal zones. However, sea-level changes near coast, particularly absolute changes, have been less well monitored than those in open ocean. In this study, we aim investigate potential Global Navigation Satellite Systems Interferometric Reflectometry (GNSS-IR) measure and tie on-land (coastal GNSS) offshore (satellite altimetry) observations...

Historical section data extending to 1985 are used to estimate the interannual variability of transport entering the Coral Sea between New Caledonia and the Solomon Islands. Typical magnitudes of this variability are 65–8 Sv (Sv [ 10 m s) in the 0–400-m layer relative to 400 m, and 68–12 Sv in the 0–2000-m layer relative to 2000 m, on a mean of close to230 Sv (relative to 2000 m). Transport inc...

In the physical sciences, e.g., meteorology and oceanography, combining measurements with the dynamics of the underlying models is usually referred to as data assimilation. Data assimilation improves the reconstruction of the image fields of interest. Assimilating data with algorithms like the Kalman-Bucy filter (KBf) is challenging due to their computational cost which for two-dimensional (2-D...

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Microwave radiometers form an integral part of satellite altimetry. The long-term stability of the radiometer measurements is as important to the accurate determination of sea level rise as is the long-term stability of the altimeter instrument. However, the radiometer stability has been largely taken for granted. Detailed long-term study of the brightness temperatures of ERS-1, ERS-2, TOPEX/Po...

In the Japan/East Sea, energetic high-frequency large-scale barotropic motions are shown to lead to large aliasing errors in satellite altimetry observations. The combined aliasing from several neighboring and crossing tracks produces artificial mesoscale signals in altimeter-mapped products, significantly changing the map interpretation. The alias can be well suppressed by subtracting the larg...

Since the launch of ENVISAT satellite in 2002, the Radar Altimetry Mission provides systematic altimeter observations of the Earth surface. The ENVISAT Geophysical Data Records products contain, over all type of surfaces, altimeter ranges derived from four specialized retrackers: Ocean, Ice-1, Ice-2 and Sea-Ice retracker. Among the different goals of the ENVISAT Mission, one directly concerns l...

Precise corrections with a three-dimensional voxel model of the ionosphere based on global navigation satellite system (GNSS) data from a wide-area network of ground receivers can help resolve differential carrier-phase ambiguities over very long baselines of hundreds of kilometers in present two-frequency systems [global positioning system (GPS) and global orbiting navigation satellite system ...