Potential of Forest Monitoring with Multi-Temporal TANDEM-X Height Models

Multi-temporal analysis of canopy surface heights has high potential for a forest monitoring system. TanDEM-X interferometric synthetic aperture radar (InSAR) heights provide a global data source for a multi-temporal height analysis as two global coverages from the global digital elevation model (DE...

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Bibliographic Details
Main Authors: Schlund, Michael, Kukunda, Collins B., Baumann, Sabine, Wessel, Birgit, Kiefl, Nadine, von Poncet, Felicitas
Format: Conference Proceeding
Language:English
Subjects:
Coherence
Estimation
Forestry
Interferometric synthetic aperture radar (InSAR)
Laser radar
Monitoring
Remote sensing
Synthetic aperture radar
TanDEM-X
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Summary:Multi-temporal analysis of canopy surface heights has high potential for a forest monitoring system. TanDEM-X interferometric synthetic aperture radar (InSAR) heights provide a global data source for a multi-temporal height analysis as two global coverages from the global digital elevation model (DEM) phase 2010-2014 and the Change DEM phase 2017-2020 exist. However, the potential of estimating small scale and subtle changes with TanDEM-X heights is to date underexplored. The detection of subtle changes was assessed in this study. Penetration depth estimations were applied as a first step in a framework to avoid pseudo-changes based on errors and different acquisition properties. The results suggest that subtle changes are detectable, but an improved error assessment is necessary in order to provide a detection with high accuracy.
ISSN:2153-7003
DOI:10.1109/IGARSS39084.2020.9323862