Upload
marcovizzari
View
273
Download
0
Embed Size (px)
Citation preview
University of Perugia Department of Man and Territory
Land Use / Land Cover analysis using Landsat TM data: application in a fragmented landscape of central Italy
(Umbria)
Marco Vizzari Francesca Brunazzi
• Landsat 5 TM multiple scenes from USGS available at: http://earthexplorer.usgs.gov/
• WMS layer of ortophoto from Italian Environmental Ministry – National Geoportal available at: http://www.pcn.minambiente.it/GN/
• WMS layer of settlements from Regional GIS of Umbria available at: http://geo.umbriaterritorio.it
MAIN DATA
Landsat program will be renewed and maintained with new satellites from 2013 (Continuity Mission).
Data acquisition
Multi Spectral Scanner (MSS) Thematic Mapper
(TM) Spatial resolution 80 x 60 m Spatial resolution
30 x 30 m (120 m x 120 m TI)
Enhanced Thematic Mapper Plus (ETM+) Spatial resolution
30 m x 30 m (15 m x 15 m PAN
60 m x 60 m TI)
Landsat
Source: landsat.usgs.gov
Perugia: 449,92 km2
Corciano: 63,69 km2
Deruta: 44,39 km2
Torgiano: 37,88 km2
Total area: 595,88 km2
Study area
Pre-processing
Visual analysis
PCA
Classification Unsupervised Supervised
Iso-data Maximum Likelihood
Ancillary built-up data integration
Methods
Accuracy assessment
Deep water
Shallow water
High density natural woodlands
Medium density agri-natural woodlands
Sowlands
Medium density residential areas
High density residential areas
Commercial, productive and infrastructural areas
Commercial, productive and infrastructural accessory areas
Results – LULC 2010
ACCURACY ASSESSMENT
93% K = 0,92