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

A multi-scale approach for retrieving proportional cover of life forms

Gessner, Ursula and Conrad, Christopher and Hüttich, Christian and Keil, Manfred and Schmidt, Michael and Dech, Stefan (2008) A multi-scale approach for retrieving proportional cover of life forms. In: Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 6-11 July 2008. IEEE International Geoscience & Remote Sensing Symposium, 6-11 July 2008, Boston, USA.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Abstract

This study presents a multi-scale procedure to derive continuous proportional cover of woody vegetation in savanna ecosystems. QuickBird data was classified to define a continuous training and validation data set of woody cover proportions. Using a regression tree algorithm based on Landsat TM data, this woody cover information was extrapolated to an area of approximately 185 km x 185 km. The resulting 30 m map of the Namibian North-eastern Kalahari Woodland was aggregated to 250 m and 500 m resolutions. Comparisons of the global MODIS VCF product with the regionally adjusted multi-scale fractional cover map indicate that VCF tree cover is generally underestimated in the study area and confusions between tree and dense shrub cover occur.

Document Type:Conference or Workshop Item (Paper, Poster)
Title:A multi-scale approach for retrieving proportional cover of life forms
Authors:
AuthorsInstitution or Email of Authors
Gessner, Ursulaursula.gessner@dlr.de
Conrad, Christopherchristopher.conrad@uni-wuerzburg.de
Hüttich, Christianchristian.huettich@uni-wuerzburg.de
Keil, Manfredmanfred.keil@dlr.de
Schmidt, Michaelmichael.schmidt@dlr.de
Dech, Stefanstefan.dech@dlr.de
Date:July 2008
Journal or Publication Title:Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 6-11 July 2008
Refereed publication:No
Status:Published
Keywords:fractional cover, regression tree, multiscale analysis, savanna, VCF
Event Title:IEEE International Geoscience & Remote Sensing Symposium
Event Location:Boston, USA
Event Type:international Conference
Event Dates:6-11 July 2008
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Geowissenschaftl. Fernerkundungs- und GIS-Verfahren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center
Deposited By: Ursula Gessner
Deposited On:14 Jun 2010 10:27
Last Modified:12 Dec 2013 20:57

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.