The Surface Water and Ocean Topography Mission (SWOT): the Ka-band Radar Interferometer (KaRIn) for water level measurements at all scales

Ernesto Rodriguez; Daniel Esteban-Fernandez

doi:10.1117/12.868525

13 October 2010 The Surface Water and Ocean Topography Mission (SWOT): the Ka-band Radar Interferometer (KaRIn) for water level measurements at all scales

Ernesto Rodriguez, Daniel Esteban-Fernandez

Author Affiliations +

Proceedings Volume 7826, Sensors, Systems, and Next-Generation Satellites XIV; 782614 (2010) https://doi.org/10.1117/12.868525
Event: SPIE Remote Sensing, 2010, Toulouse, France

Abstract

The Surface Water and Ocean Topography (SWOT) mission will study ocean mesoscale and submesoscale phenomena and provide an inventory of storage change and discharge for fresh water bodies and rivers. In this paper, we examine the combination of measurements that will be used by SWOT to achieve a globally consistent data set. We introduce a new channel in the SWOT measurement that combines data transmitted by the interferometer antennas and received by the radiometer antenna allows the closing of the SWOT nadir coverage gap. This new mode also allows for improved calibration between the nadir altimeter and the interferometer, resulting in consistent range measurements. Consistency in the phase measurements is achieved using a mixture of cross-over calibration combined with optimal estimation of system error drift.

Citation Download Citation

Ernesto Rodriguez and Daniel Esteban-Fernandez "The Surface Water and Ocean Topography Mission (SWOT): the Ka-band Radar Interferometer (KaRIn) for water level measurements at all scales", Proc. SPIE 7826, Sensors, Systems, and Next-Generation Satellites XIV, 782614 (13 October 2010); https://doi.org/10.1117/12.868525

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