Impact of Surface Waves on SWOT's Projected Ocean Accuracy

The Surface Water and Ocean Topography (SWOT) mission being considered by NASA has, as one of its main objectives, to measure ocean topography with centimeter scale accuracy over kilometer scale spatial resolution. This paper investigates the impact of ocean waves on SWOT’s projected performance. Several effects will be examined: volumetric decorrelation, aliasing of ocean waves, backscattering modulation, and the so-called surfboard sampling.

[1]  Richard K. Moore,et al.  Radar remote sensing and surface scattering and emission theory , 1986 .

[2]  Werner Alpers,et al.  The effect of orbital motions on synthetic aperture radar imagery of ocean waves , 1979 .

[3]  F. Harris.  On the use of windows for harmonic analysis with the discrete Fourier transform , 1978, Proceedings of the IEEE.

[4]  Ananda Pascual,et al.  Improved description of the ocean mesoscale variability by combining four satellite altimeters , 2006 .

[5]  L. Isserlis.  ON A FORMULA FOR THE PRODUCT-MOMENT COEFFICIENT OF ANY ORDER OF A NORMAL FREQUENCY DISTRIBUTION IN ANY NUMBER OF VARIABLES , 1918 .

[6]  Alan V. Oppenheim,et al.  Discrete-Time Signal Pro-cessing , 1989 .

[7]  R. Stewart,et al.  Introduction to physical oceanography , 2008 .

[8]  Kazuo Ouchi,et al.  Synthetic aperture radar imagery of range traveling ocean waves , 1988 .

[9]  W. Brown.  Synthetic Aperture Radar , 1967, IEEE Transactions on Aerospace and Electronic Systems.

[10]  Johannes Schulz-Stellenfleth,et al.  Ocean wave imaging using an airborne single pass across-track interferometric SAR , 2001, IEEE Trans. Geosci. Remote. Sens..

[11]  Harald E. Krogstad,et al.  A Simple Derivation of Hasselmann's Nonlinear Ocean-Synthetic Aperture Radar Transform , 1992 .

[12]  Paul D. Bates.  SWOT: The Surface Water and Ocean Topography Mission: Wide-Swath Altimetric Measurement of Water Elevation on Earth , 2012 .

[13]  Laurent Rey,et al.  AltiKa: a Ka-band Altimetry Payload and System for Operational Altimetry during the GMES Period , 2006, Sensors (Basel, Switzerland).

[14]  Fuk K. Li,et al.  Synthetic aperture radar interferometry , 2000, Proceedings of the IEEE.

[15]  N. Hamano,et al.  Digital processing of synthetic aperture radar data , 1984 .

[16]  Michael Durand,et al.  The Surface Water and Ocean Topography Mission: Observing Terrestrial Surface Water and Oceanic Submesoscale Eddies , 2010, Proceedings of the IEEE.

[17]  Bertrand Chapron,et al.  Ocean Wave Slope Observations Using Radar Backscatter and Laser Altimeters , 2004 .

[18]  J. Crease.  The Dynamics of the Upper Ocean , 1967 .

[19]  W. Plant.  A relationship between wind stress and wave slope , 1982 .

[20]  Charles Elachi,et al.  Spaceborne Radar Remote Sensing: Applications and Techniques , 1987 .

[21]  E. Bolinder.  The Fourier integral and its applications , 1963 .

[22]  Bertrand Chapron,et al.  Impact of high‐frequency waves on the ocean altimeter range bias , 2005 .

[23]  Jochen Horstmann,et al.  Sea surface imaging with an across-track interferometric synthetic aperture radar: the SINEWAVE experiment , 2001, IEEE Trans. Geosci. Remote. Sens..

[24]  E. Rodríguez,et al.  Theory and design of interferometric synthetic aperture radars , 1992 .

[25]  Parag Vaze,et al.  The SWOT (Surface Water and Ocean Topography) Mission: Spaceborne Radar Interferometry for Oceanographic and Hydrological Applications , 2009 .

[26]  R. Raney,et al.  Theory of synthetic aperture radar ocean imaging: A MARSEN view , 1985 .

[27]  J. Gower,et al.  “Layover” in satellite radar images of ocean waves , 1983 .

[28]  Ernesto Rodriguez,et al.  The effect of small-wave modulation on the electromagnetic bias , 1992 .

[29]  Lee-Lueng Fu,et al.  Observing Oceanic Submesoscale Processes From Space , 2008 .