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RISOn the Transition from Profile Altimeter to Swath Altimeter for Observing Global Ocean Surface Topography
Publisher: American Meteorological Society
Abstract: onventional radar altimeter makes measurement of sea surface height (SSH) in one-dimensional profiles along the ground tracks of a satellite. Such profiles are combined via various mapping techniques to construct two-dimensional ...
Vorticity Structures in the Tropical Pacific from a Numerical Simulation
Publisher: American Meteorological Society
Abstract: he small-scale variability of the tropical Pacific is studied with the simulations from a numerical model in terms of vorticity structures. A Lagrangian method based on the Okubo?Weiss parameter is used to identify the ...
The Challenge of Using Future SWOT Data for Oceanic Field Reconstruction
Publisher: American Meteorological Society
Abstract: onventional altimetry measures a one-dimensional profile of sea surface height (SSH) along the satellite track. Two-dimensional SSH can be reconstructed using mapping techniques; however, the spatial resolution is quite ...
Dynamic Interpolation of Sea Surface Height and Potential Applications for Future High-Resolution Altimetry Mapping
Publisher: American Meteorological Society
Abstract: any issues may challenge standard interpolation techniques to produce high-resolution gridded maps of sea surface height in the context of future missions like Surface Water and Ocean Topography (SWOT). The present study ...
Dynamic Mapping of Along-Track Ocean Altimetry: Method and Performance from Observing System Simulation Experiments
Publisher: American Meteorological Society
Abstract: imulated along-track ocean altimetry data were used to implement the use of a nonlinear dynamic propagator to perform three-dimensional (time and 2D space) interpolation of mesoscale sea surface height (SSH). The method ...
A Cross-Spectral Approach to Measure the Error Budget of the SWOT Altimetry Mission over the Ocean
Publisher: American Meteorological Society
Abstract: AbstractThe future Surface Water Ocean Topography (SWOT) mission aims to observe water bodies and short-scale ocean surface topography with unprecedented spatial resolution and accuracy. However, the topography estimates ...
Reconstructability of Three-Dimensional Upper-Ocean Circulation from SWOT Sea Surface Height Measurements
Publisher: American Meteorological Society
Abstract: tilizing the framework of effective surface quasigeostrophic (eSQG) theory, this study explores the potential of reconstructing the 3D upper-ocean circulation structures, including the balanced vertical velocity w field, ...
Efficient Parameterization of the Observation Error Covariance Matrix for Square Root or Ensemble Kalman Filters: Application to Ocean Altimetry
Publisher: American Meteorological Society
Abstract: In the Kalman filter standard algorithm, the computational complexity of the observational update is proportional to the cube of the number y of observations (leading behavior for large y). In realistic atmospheric or ...
The Effect of Atmospheric Water Vapor Content on the Performance of Future Wide-Swath Ocean Altimetry Measurement
Publisher: American Meteorological Society
Abstract: easurement of sea surface height (SSH) over a finite swath along satellite tracks has been planned for future space missions. The effect of water vapor in the troposphere on the delay of radar signal must be corrected for ...
Dynamic Mapping of Along-Track Ocean Altimetry: Performance from Real Observations
Publisher: American Meteorological Society
Abstract: The dynamic optimal interpolation (DOI) method merges altimetric sea surface height (SSH) data into maps that are continuous in time and space. Unlike the traditional linear optimal interpolation (LOI) method, DOI has the ...