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An Investigation of Forest Height Estimation by using TanDEM-X Local InSAR Phase Center Variations

Choi, Changhyun and Pardini, Matteo and Guliaev, Roman and Papathanassiou, Konstantinos (2020) An Investigation of Forest Height Estimation by using TanDEM-X Local InSAR Phase Center Variations. European Conference on Synthetic Aperture Radar (EUSAR), 2020-06-15 - 2020-06-18, Leipzig, Germany.

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Abstract

Recent TanDEM-X experiments have shown that forest height can be estimated with the single polarization X-band interferometric coherences. However, an external digital terrain model (DTM) is necessary to retrieve canopy height. Forest height derived from coherence model inversion is known as to be only accurate in certain condition like boreal forest in winter time. In order to overcome these limitations, the use of local phase center variations to estimate forest height isinvestigated. The result over tropical forest shows that the variability of the phase centers helps to estimate height from the oherence. Although the heights are slightly overestimated in low canopy heights area and underestimated dense forests, there is a good correlation with the forest heights obtained from Lidar measurement.

Item URL in elib:https://elib.dlr.de/133995/
Document Type:Conference or Workshop Item (Speech)
Title:An Investigation of Forest Height Estimation by using TanDEM-X Local InSAR Phase Center Variations
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Choi, ChanghyunChanghyun.Choi (at) dlr.deUNSPECIFIED
Pardini, MatteoMatteo.Pardini (at) dlr.dehttps://orcid.org/0000-0003-2018-7514
Guliaev, RomanRoman.Guliaev (at) dlr.deUNSPECIFIED
Papathanassiou, KonstantinosKostas.Papathanassiou (at) dlr.deUNSPECIFIED
Date:31 January 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:InSAR, Forest height, Forest structure
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Leipzig, Germany
Event Type:international Conference
Event Dates:2020-06-15 - 2020-06-18
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Choi, Changhyun
Deposited On:03 Feb 2020 15:14
Last Modified:03 Feb 2020 15:14

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