PhenoSat
A software tool to extract phenological information from satellite vegetation index time-series

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PhenoSat receives as input the yearly vegetation index data or the satellite images. The second option allows to define the region to be used: 1) all image, 2) selecting a rectangular area directly on the image; or 3) introducing the upper left coordinates and the size of the region. 

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Six smoothing methods can be used to fit the data: Savitzky-Golay (SG), Piecewise Logistic (PL), Fourier Series (FS), Gaussian Model (GM), Polinomial Curve Fitting (PCF) and Cubic Smoothing Splines (CSS). More information about these methods can be obtained in the papers cited on the publications link.
The PhenoSat outputs are two excel files with data and phenological information. In case of using the images as input, three phenological maps (start of season, maximum vegetation development and end of season) are also created.

The software is a simple to use tool. For each step is available an help document to provide an easy usage. The PhenoSat application was developed using the Matlab R2009a version and it is advisable to use this or a later version, in order to avoid possible funcionalities' errors. 

 PHENOSAT SOFTWARE 

 
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