Abstract
Estimate of healthy vegetation is an important parameter for hydrological and forecasting models and the purpose of this work is to study vegetation's changes in the Calabrian region (the most southern region of the Italian peninsula), investigating also possible correlations between vegetation indices and hydrological data. Two vegetation indices (NDVI, Normalized Difference Vegetation Index, and SAVI, Soil Adjusted Vegetation Index) have been chosen to quantitatively assess the greenness of the examined area. Temporal changes on a monthly basis for 1 year (April 2001/March 2002) have been analyzed on an area of interest approximately 120 km × 90 km large, using Advanced very High Resolution Radiometer (AVHRR) LAC data (1.1 km pixel size). Different analysis techniques have been tested. In order to select the optimum spatial/temporal scale for vegetation studies based on surveys at local scale, the NDVI vegetation indices obtained from different sensor types on a same date have been compared. Finally, considering an experimental basin area ( 29 km 2 ) , a classification of different regions considering discrete vegetation index classes has been carried out and the results have been compared with a land use classification obtained from air-photo interpretation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
