Mapping indicators of riparian vegetation health using IKONOS and Landsat-7 ETM+ image data in Australian tropical savannas

Johansen, K. and Phinn, S. R. (2004). Mapping indicators of riparian vegetation health using IKONOS and Landsat-7 ETM+ image data in Australian tropical savannas. In: Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. International Geosciences and Remote Sensing Symposium, Anchorage, USA, (1559-1562). 20-22 September, 2004. doi:10.1109/IGARSS.2004.1370611


Author Johansen, K.
Phinn, S. R.
Title of paper Mapping indicators of riparian vegetation health using IKONOS and Landsat-7 ETM+ image data in Australian tropical savannas
Conference name International Geosciences and Remote Sensing Symposium
Conference location Anchorage, USA
Conference dates 20-22 September, 2004
Proceedings title Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings
Journal name Igarss 2004: Ieee International Geoscience and Remote Sensing Symposium Proceedings, Vols 1-7
Place of Publication Piscataway, USA
Publisher IEEE
Publication Year 2004
Sub-type Fully published paper
DOI 10.1109/IGARSS.2004.1370611
Open Access Status
ISBN 0780387422
Volume 1
Start page 1559
End page 1562
Total pages 4
Collection year 2004
Language eng
Abstract/Summary Government agencies responsible for riparian environments are assessing the utility of remote sensing for mapping and monitoring environmental health indicators. The objective of this work was to evaluate IKONOS and Landsat-7 ETM+ imagery for mapping riparian vegetation health indicators in tropical savannas for a section of Keelbottom Creek, Queensland, Australia. Vegetation indices and image texture from IKONOS data were used for estimating percentage canopy cover (r2=0.86). Pan-sharpened IKONOS data were used to map riparian species composition (overall accuracy=55%) and riparian zone width (accuracy within 4 m). Tree crowns could not be automatically delineated due to the lack of contrast between canopies and adjacent grass cover. The ETM+ imagery was suited for mapping the extent of riparian zones. Results presented demonstrate the capabilities of high and moderate spatial resolution imagery for mapping properties of riparian zones, which may be used as riparian environmental health indicators
Subjects EX
291003 Photogrammetry and Remote Sensing
770406 Integrated (ecosystem) assessment and management
0502 Environmental Science and Management
0909 Geomatic Engineering
Keyword Geophysical signal processing
Image resolution
Vegetation mapping
IKONOS
Landsat-7 ETM
Riparian zones
Remote sensing
Q-Index Code EX

 
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Created: Thu, 23 Aug 2007, 19:49:13 EST