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Authors:
Luciano Telesca
Rosa Lasaponara
Farid Faridani
Nicodemo Abate
Michele Lovallo
Keywords: Fisher-Shannon method; singular spectrum analysis; MODIS; vegetation
Abstract:
The main goal of this paper is the evaluation of the potential of Fisher-Shannon statistical method applied to MODIS evapotranspiration satellite time series to explore the inner time dynamics of vegetation cover. In particular, we focused on two types of vegetation areas, peri-urban parks and olive orchards. For the first, we selected five sites in Italy, one of which (Castel Volturno) is affected by Toumeyella Parvicornis, a parasite that has been adversely impacting the Pinus trees of that area in the recent years. For the second, we selected seven sites in Southern Italy, four of which are affected by Xylella Fastidiosa, considered one of the most dangerous phytopathogenic bacteria in the world. For all the investigated sites, to remove the trend and seasonal variability, we firstly applied the Singular Spectrum Analysis (SSA); then, we analysed the de-trended series by means of the Fisher-Shannon statistical method, which combines the Shannon Entropy Power (SEP) and the Fisher Information Measure (FIM). In the Fisher-Shannon Information Plane (FSIP), the infected vegetated areas appear well characterized by the lowest FIM and the highest SEP. These preliminary results seem to envisage the usefulness of the Fisher-Shannon method as a reliable statistical tool to be included in an operational system for early diagnosis of status of deterioration of vegetation.
Pages: 1 to 6
Copyright: Copyright (c) IARIA, 2023
Publication date: March 13, 2023
Published in: conference
ISSN: 2519-8432
ISBN: 978-1-68558-057-5
Location: Barcelona, Spain
Dates: from March 13, 2023 to March 17, 2023