Characterizing land cover change using multi-temporal remote sensed imagery and landscape metrics

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C. R. Fichera, G. Modica, M. Pollino Sesta Conferenza Nazionale in Informatica e Pianificazione Urbana e Territoriale INPUT 2010 Potenza, 13-15 Settembre 2010

Technologie Immobilien

Characterizing land cover change using multi-temporal remote sensed imagery and landscape metrics C. R. Fichera, G. Modica, M. Pollino Università degli Studi Mediterranea di Reggio Calabria - Dipartimento di Scienze e Tecnologie Agroforestali ed Ambientali ( DiSTAfA ) cr.fichera@unirc.it, giuseppe.modica@unirc.it ENEA - Agenzia Nazionale per le Nuove tecnologie, l’Energia e lo sviluppo economico sostenibile Laboratorio Analisi e Osservazione del sistema Terra ( UTMEA-TER ) [email_address]

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object]

The study area: Conca di Avellino ,[object Object]

Multi-temporal Dataset: aerial photos The aerial photos (1954, 1974 and 1990 surveys carried by “Istituto Geografico Militare Italiano”, I.G.M.I.) and the digital orthophotos (1994 and 2006) used are listed into the following table: Year Frame data Flight data Source 1954 Sheet n° 185 Format: Digital – 600dpi Height: 6000 m Scale: 1:35000 Istituto Geografico Militare (I.G.M.) http://www.igmi.org 1974 Sheet n° 185 Format: Analogical 23x23 cm Height: 2580 m Scale: 1:16000 1990 Sheet n° 185 Format: Digital – 600dpi Height: 6400 m Scale: 1:35000 1994 B/W Aerial Orthophoto Spatial resolution 1 m (only for consultation) National Cartographic Portal www.pcn.minambiente.it 2006 Color Aerial Orthophoto

Multi-temporal Dataset: satellite images ,[object Object],Satellite data Date Spatial resolution Source Landsat MSS (WRS-1, Path 203, Row 032) 1975 -07-15 57 m Cover Facility (GLCF) http://glcf.umiacs.umd.edu Landsat TM (WRS-2, Path 189, Row 032) 1993 -08-23 30 m Landsat ETM+ (WRS-2, Path 189, Row 032) 2004 -06-10 28.5 m – 14.5 m

LC maps for 1954 and 2004 ,[object Object],[object Object],1954 2004

LC changes (1954÷2004) ,[object Object],[object Object]

LC changes (1954÷2004) In the following transition matrix are reported the statistics of changes, aggregated for each LC class. The values (in hectares) reported along the diagonal express the area of the unchanged LC types; the other cells contain the measurement of the areas that have bore a transformation from a LC type to another class. The column on the right sum up the LC areas at 1954, while the last row sum up the LC areas at 2004. To From Urban Grassland / pasture Cropland Woodland LC types Subtotals [1954] Urban 900,97 - - - 900,97 Grassland/pasture 75,12 354,37 781,98 411,30 1622,77 Cropland 3786,87 1091,66 19409,16 7420,54 31708,23 Woodland 162,11 686,50 2246,49 20136,09 23231,20 LC types subtotals [2004] 4925,07 2132,53 22437,63 27967,93 Total area: 57463,16

Landscape Metrics analysis ,[object Object],[object Object],1954 2004

Landscape Metrics analysis ,[object Object],[object Object],[object Object],[object Object],[object Object]

Final considerations ,[object Object],[object Object],[object Object]

Final considerations ,[object Object],[object Object]

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1. Characterizing land cover change using multi-temporal remote sensed imagery and landscape metrics C. R. Fichera, G. Modica, M. Pollino Università degli Studi Mediterranea di Reggio Calabria - Dipartimento di Scienze e Tecnologie Agroforestali ed Ambientali ( DiSTAfA ) cr.fichera@unirc.it, giuseppe.modica@unirc.it ENEA - Agenzia Nazionale per le Nuove tecnologie, l’Energia e lo sviluppo economico sostenibile Laboratorio Analisi e Osservazione del sistema Terra ( UTMEA-TER ) [email_address]

4. Multi-temporal Dataset: aerial photos The aerial photos (1954, 1974 and 1990 surveys carried by “Istituto Geografico Militare Italiano”, I.G.M.I.) and the digital orthophotos (1994 and 2006) used are listed into the following table: Year Frame data Flight data Source 1954 Sheet n° 185 Format: Digital – 600dpi Height: 6000 m Scale: 1:35000 Istituto Geografico Militare (I.G.M.) http://www.igmi.org 1974 Sheet n° 185 Format: Analogical 23x23 cm Height: 2580 m Scale: 1:16000 1990 Sheet n° 185 Format: Digital – 600dpi Height: 6400 m Scale: 1:35000 1994 B/W Aerial Orthophoto Spatial resolution 1 m (only for consultation) National Cartographic Portal www.pcn.minambiente.it 2006 Color Aerial Orthophoto

8. LC changes (1954÷2004) In the following transition matrix are reported the statistics of changes, aggregated for each LC class. The values (in hectares) reported along the diagonal express the area of the unchanged LC types; the other cells contain the measurement of the areas that have bore a transformation from a LC type to another class. The column on the right sum up the LC areas at 1954, while the last row sum up the LC areas at 2004. To From Urban Grassland / pasture Cropland Woodland LC types Subtotals [1954] Urban 900,97 - - - 900,97 Grassland/pasture 75,12 354,37 781,98 411,30 1622,77 Cropland 3786,87 1091,66 19409,16 7420,54 31708,23 Woodland 162,11 686,50 2246,49 20136,09 23231,20 LC types subtotals [2004] 4925,07 2132,53 22437,63 27967,93 Total area: 57463,16

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15. Characterizing land cover change using multi-temporal remote sensed imagery and landscape metrics C. R. Fichera, G. Modica, M. Pollino Università degli Studi Mediterranea di Reggio Calabria - Dipartimento di Scienze e Tecnologie Agroforestali ed Ambientali ( DiSTAfA ) cr.fichera@unirc.it, giuseppe.modica@unirc.it ENEA - Agenzia Nazionale per le Nuove tecnologie, l’Energia e lo sviluppo economico sostenibile Laboratorio Analisi e Osservazione del sistema Terra ( UTMEA-TER ) [email_address]

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