Retrieving land cover information from MERIS and MODIS Data: a comparative study for landscape characterization in Portugal

Author

Carrao, H. ; Sarmento, P. ; Araujo, A. ; Caetano, Marcelo

Author_Institution

Portuguese Geogr. Inst., Lisbon

fYear

2007

fDate

23-28 July 2007

Firstpage

1271

Lastpage

1274

Abstract

This is a preliminary study in the framework of an ongoing research work that aims at comparing the aptitude of MERIS and MODIS images for land cover mapping at regional scale. Overall and per class accuracies achieved with a Maximum Likelihood classification of MODIS and MERIS images acquired during August 2005, are used as a measurement of their adequacy for land cover characterization in Portugal. Attained results show that differences in spatial and spectral resolutions of used images do not produce overly disparities in land cover classes´ discrimination. Still, the separation between such numerous land cover classes is hampered by landscape fragmentation of the territory at such spatial resolution.

Keywords

image resolution; maximum likelihood estimation; radar applications; terrain mapping; topography (Earth); vegetation mapping; AD 2005 08; MERIS; MODIS; Portugal; land cover information retrieval; land cover mapping; landscape characterization; landscape fragmentation; maximum likelihood classification; spatial resolution; spectral resolution; Image resolution; Image sensors; Information management; Information retrieval; MODIS; Production; Remote sensing; Sensor phenomena and characterization; Spatial resolution; Statistics; MERIS; MODIS; Portugal; land cover classification;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International

Conference_Location

Barcelona

Print_ISBN

978-1-4244-1211-2

Electronic_ISBN

978-1-4244-1212-9

Type

conf

DOI

10.1109/IGARSS.2007.4423037

Filename

4423037