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Forest Height Estimation from TanDEM-X InSAR Coherence Magnitudes Towards Large Scale Applications

Choi, Changhyun and Guliaev, Roman and Cazcarra-Bes, Victor and Pardini, Matteo and Papathanassiou, Konstantinos (2020) Forest Height Estimation from TanDEM-X InSAR Coherence Magnitudes Towards Large Scale Applications. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2020-09-26 - 2020-10-02, Virtual symposium.

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Abstract

TanDEM-X experiments have shown that forest height can be estimated with single polarization X-band interferometric coherences. An external digital terrain model (DTM) not only allows to use both coherence magnitude and phase information, but also to overcome X-band penetration limitations. However, DTM information is not available for large areas. Using coherence magnitudes makes height inversion feasible, but it requires a model relating coherence to height. Here we report an experiment using the X-band local phase center variations. Results over a tropical forest site show that in those stands in which the low X-band penetration is not a limitation, the there is a good correlation between the obtained TanDEM-X heights and the heights from Lidar measurements.

Item URL in elib:https://elib.dlr.de/140453/
Document Type:Conference or Workshop Item (Speech)
Title:Forest Height Estimation from TanDEM-X InSAR Coherence Magnitudes Towards Large Scale Applications
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Choi, ChanghyunChanghyun.Choi (at) dlr.deUNSPECIFIED
Guliaev, RomanRoman.Guliaev (at) dlr.deUNSPECIFIED
Cazcarra-Bes, VictorVictor.CazcarraBes (at) dlr.dehttps://orcid.org/0000-0002-6776-4553
Pardini, MatteoMatteo.Pardini (at) dlr.dehttps://orcid.org/0000-0003-2018-7514
Papathanassiou, KonstantinosKostas.Papathanassiou (at) dlr.deUNSPECIFIED
Date:2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Forest height, SAR interferometry, TanDEM-X.
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Virtual symposium
Event Type:international Conference
Event Dates:2020-09-26 - 2020-10-02
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Projekt TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Pardini, Dr.-Ing. Matteo
Deposited On:14 Jan 2021 15:36
Last Modified:14 Jan 2021 15:36

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