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Quantification of Horizontal Forest Structure from High Resolution TanDEM-X Interferometric Coherences

Choi, Changhyun and Pardini, Matteo and Papathanassiou, Konstantinos (2018) Quantification of Horizontal Forest Structure from High Resolution TanDEM-X Interferometric Coherences. In: International Geoscience and Remote Sensing Symposium (IGARSS). IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2018-07-23 - 2018-07-27, Valencia, Spain.

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Abstract

Recent TanDEM-X experiments have shown that the limited penetration capability at X-band in forest volumes allow the estimation of the height variability of the top canopy layer, which can be used as a proxy to the horizontal structure (i.e. heterogeneity), by using high resolution digital elevation models (DEMs). However, the use of an external digital terrain model (DTM) is necessary to separate the (high resolution) canopy height variations from the topographic ones. In this work, the possibility of compensating terrain topographic variation by using a low resolution TanDEM-X DEM instead of an external DTM is investigated. The results show that the use of a reference DEM with a resolution on the order of 100 m allows to compensate the terrain induced topographic variations and to preserve the information on forest horizontal heterogeneity at a large extent.

Item URL in elib:https://elib.dlr.de/122724/
Document Type:Conference or Workshop Item (Speech)
Title:Quantification of Horizontal Forest Structure from High Resolution TanDEM-X Interferometric Coherences
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Choi, ChanghyunChanghyun.Choi (at) dlr.deUNSPECIFIED
Pardini, MatteoMatteo.Pardini (at) dlr.deUNSPECIFIED
Papathanassiou, KonstantinosKostas.Papathanassiou (at) dlr.deUNSPECIFIED
Date:July 2018
Journal or Publication Title:International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:TanDEM-X, interferometry, digital elevation model (DEM), forest structure
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Valencia, Spain
Event Type:international Conference
Event Dates:2018-07-23 - 2018-07-27
Organizer:IEEE
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:05 Nov 2018 15:27
Last Modified:23 Jan 2019 10:21

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