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Earth observation-based multi-scale impact assessment of internally displaced person (IDP) camps on wood resources in Zalingei, Darfur

Spröhnle, Kristin and Kranz, Olaf and Schöpfer, Elisabeth and Moeller, Matthias and Voigt, Stefan (2015) Earth observation-based multi-scale impact assessment of internally displaced person (IDP) camps on wood resources in Zalingei, Darfur. Geocarto International, 31 (5), pp. 1-21. Taylor & Francis. DOI: 10.1080/10106049.2015.1062053 ISSN 1010-6049

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Official URL: http://dx.doi.org/10.1080/10106049.2015.1062053

Abstract

This study describes the development of a semi-automatic object-based image analysis approach for the detection and quantification of deforestation in Zalingei, Darfur, in consequence of the increasing concentration of refugees or internally displaced persons (IDPs) in the region. The classification workflow is based on a multi-scale approach, ranging from the analysis of high resolution SPOT-4 to very high resolution IKONOS and QuickBird satellite imagery between 2003 and 2008. The overall accuracy rates for the classification of the SPOT 4 data ranged from 92% up to 95%, while those for the QuickBird and IKONOS classification have shown values of 88 and 87%, respectively. The resulting trends in woody vegetation cover were compared with the development of the local population and the variability of precipitation. The results show that the strong increase in human population in the Zalingei IDP camps can be associated with considerable decrease in woody vegetation in the camp vicinity.

Item URL in elib:https://elib.dlr.de/97991/
Document Type:Article
Title:Earth observation-based multi-scale impact assessment of internally displaced person (IDP) camps on wood resources in Zalingei, Darfur
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Spröhnle, Kristinkristin.sproehnle (at) dlr.deUNSPECIFIED
Kranz, OlafHelmholtz Association Head OfficeUNSPECIFIED
Schöpfer, Elisabethelisabeth.schoepfer (at) dlr.deUNSPECIFIED
Moeller, Matthiasmmoeller (at) beuth-hochschule.deUNSPECIFIED
Voigt, StefanStefan.Voigt (at) dlr.deUNSPECIFIED
Date:3 August 2015
Journal or Publication Title:Geocarto International
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:31
DOI :10.1080/10106049.2015.1062053
Page Range:pp. 1-21
Publisher:Taylor & Francis
ISSN:1010-6049
Status:Published
Keywords:deforestation; object-based image analysis (OBIA); refugee camp monitoring; land cover; impact assessment
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: Spröhnle, Kristin
Deposited On:31 Aug 2015 16:12
Last Modified:06 Sep 2019 15:26

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