elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

TanDEM-X for Large-Area Modeling of Urban Vegetation Height: Evidence from Berlin, Germany

Schreyer, Johannes and Geiß, Christian and Lakes, Tobia (2016) TanDEM-X for Large-Area Modeling of Urban Vegetation Height: Evidence from Berlin, Germany. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 9 (5), pp. 1876-1887. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/JSTARS.2015.2508660 ISSN 1939-1404

[img] PDF
2MB

Abstract

—Large-area urban ecology studies often miss information on vertical parameters of vegetation, even though they represent important constituting properties of complex urban ecosystems. The new globally available digital elevation model (DEM) of the spaceborne TanDEM-X mission has an unprecedented spatial resolution (12 × 12 m) that allows us to derive such relevant information. So far, suitable approaches using a TanDEM-X DEM for the derivation of a normalized canopy model (nCM) are largely absent. Therefore, this paper aims to obtain digital terrain models (DTMs) for the subsequent computation of two nCMs for urban-like vegetation (e.g., street trees) and forest-like vegetation (e.g., parks), respectively, in Berlin, Germany, using a TanDEM-X DEM and a vegetation mask derived from UltraCamX data. Initial comparisons between morphological DTM-filter confirm the superior performance of a novel disaggregated progressive morphological filter (DPMF). For improved assessment of a DTM for urban-like vegetation, a modified DPMF and image enhancement methods were applied. For forest-like vegetation, an interpolation and a weighted DPMF approach were compared. Finally, all DTMs were used for nCM calculation. The nCM for urban-like vegetation revealed a mean height of 4.17 m compared to 9.61 m of a validation nCM. For forest-like vegetation, the mean height for the nCM of the weighted filtering approach (9.16 m) produced the best results (validation nCM: 13.55 m). It is concluded that an nCM from TanDEM-X can capture vegetation heights in their appropriate dimension, which can be beneficial for automated height-related vegetation analysis such as comparisons of vegetation carbon storage between several cities.

Item URL in elib:https://elib.dlr.de/106273/
Document Type:Article
Title:TanDEM-X for Large-Area Modeling of Urban Vegetation Height: Evidence from Berlin, Germany
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schreyer, JohannesHU BerlinUNSPECIFIED
Geiß, Christianchristian.geiss (at) dlr.deUNSPECIFIED
Lakes, TobiaHU BerlinUNSPECIFIED
Date:May 2016
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:9
DOI :10.1109/JSTARS.2015.2508660
Page Range:pp. 1876-1887
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1939-1404
Status:Published
Keywords:Digital elevation model (DEM), digital terrain model (DTM), morphological filters (MFs), normalized digital surface model (nDSM), Tandem-X, trees, UltraCamX, urban vegetation.
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 - Vorhaben Zivile Kriseninformation und Georisiken (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Geo Risks and Civil Security
Deposited By: Geiß, Christian
Deposited On:12 Oct 2016 10:01
Last Modified:31 Jul 2019 20:03

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.