3. Method
Fig. 3 presents a flowchart of forest cover classification using Landsat ETM+ data appending with time series MODIS NDVI data.Before implementing the forest cover classification, all the data should be preprocessed to have good data quality and the same processing area. The Landsat ETM+ NDVI data is calculated using Red and NIR bands, and then the ETM+ NDVI data is fused with MODIS NDVI data using Spatial and Temporal Adaptive Reflectance Fusion Model (STARFM) . The NDVI features areextracted from the fused time series NDVI data, and combined with Landsat ETM+ spectral data as the final data for forest cover classification. Finally, supervised classification and accuracy assessment is conducted to analysis the accuracy improvement for forest cover classification.