Wide-Swath Ocean Topography using Formation Flying Under Squinted Geometries

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Wide-Swath Ocean Topography using Formation Flying Under Squinted Geometries

The Harmony Mission Case

Conference Paper (2021)

Author(s)

Andreas Theodosiou (TU Delft - Civil Engineering & Geosciences)

Marcel Kleinherenbrink (TU Delft - Civil Engineering & Geosciences)

Paco Lopez Dekker (TU Delft - Civil Engineering & Geosciences)

Research Group

Mathematical Geodesy and Positioning

SAR InSAR Sea surface height Squinted line of sight Ocean topography

DOI related publication

https://doi.org/10.1109/IGARSS47720.2021.9554076 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:73c7c49c-3ae1-4f80-857b-895664f07937

More Info

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Publication Year

2021

Language

English

Research Group

Mathematical Geodesy and Positioning

Article number

9554076

Pages (from-to)

2134-2137

Publisher

IEEE

ISBN (print)

978-1-6654-4762-1

ISBN (electronic)

978-1-6654-0369-6

Event

IGARSS 2021 (2021-07-11 - 2021-07-16), Virtual at Brussels, Belgium

Downloads counter

245

Abstract

Ocean topography using SAR interferometry requires coherent observations of the sea surface. To observe the surface coherently, the along-track baseline between observations of the same scene must be kept to a minimum. Minimising the along-track baseline while maintaining a cross-track baseline that allows good sensitivity to relative surface height is difficult to achieve in satellite missions. This paper shows how a squinted line of sight allows single-pass cross-track interferometry with a wide swath over oceans. The Harmony candidate mission will have a formation that uses such an acquisition geometry to coherently observe the oceans.