Imaging Geodesy: Remote Sensing and Geodesy with Synthetic Aperture Radar Satellites
Synthetic Apertur Radar (SAR) is a technology to map the Earth surface with microwaves. Because this works independently from weather and sun, SAR images are especially suitable for regular monitoring and for mapping in crisis situations. But because of the precisely known imaging geometry and the coherent imaging principle, SAR is also very well suited for survey and geodesy. Some examples: - Since the 90s, surface deformations caused by earth quakes are regularly measured with SAR interferometry. - In 2016 a global high resolution Digital Elevation Model of the Earth has been generated from interferometric TanDEM-X SAR data. - During the past 5 years, a DLR/TUM research group lead by the author developed a new method for absolute point positioning with SAR data with centimeter accuracy. The presentation introduces the German TerraSAR-X and TanDEM-X missions and gives an overview into SAR interferometry and on geodetic positioning.
https://www.munich-geocenter.org/events/seminars/frontiers-in-earth-sciences-18/imaging-geodesy-remote-sensing-and-geodesy-with
https://www.munich-geocenter.org/logo.png
Imaging Geodesy: Remote Sensing and Geodesy with Synthetic Aperture Radar Satellites
Abstract
Synthetic Apertur Radar (SAR) is a technology to map the Earth surface with microwaves. Because this works independently from weather and sun, SAR images are especially suitable for regular monitoring and for mapping in crisis situations.
But because of the precisely known imaging geometry and the coherent imaging principle, SAR is also very well suited for survey and geodesy. Some examples:
- Since the 90s, surface deformations caused by earth quakes are regularly measured with SAR interferometry.
- In 2016 a global high resolution Digital Elevation Model of the Earth has been generated from interferometric TanDEM-X SAR data.
- During the past 5 years, a DLR/TUM research group lead by the author developed a new method for absolute point positioning with SAR data with centimeter accuracy.
The presentation introduces the German TerraSAR-X and TanDEM-X missions and gives an overview into SAR interferometry and on geodetic positioning.
