Articles | Volume 19, issue 8
https://doi.org/10.5194/nhess-19-1685-2019
https://doi.org/10.5194/nhess-19-1685-2019
Research article
 | 
07 Aug 2019
Research article |  | 07 Aug 2019

Statistical analysis for satellite-index-based insurance to define damaged pasture thresholds

Juan José Martín-Sotoca, Antonio Saa-Requejo, Rubén Moratiel, Nicolas Dalezios, Ioannis Faraslis, and Ana María Tarquis

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Latest update: 31 Mar 2025
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Short summary
Vegetation indices based on satellite images, such as the normalized difference vegetation index (NDVI), have been used for damaged pasture insurance. The occurrence of damage is usually defined by NDVI thresholds mainly based on normal statistics. In this work a pasture area in Spain was delimited by MODIS images. A statistical analysis of NDVI was applied to search for alternative distributions. Results show that generalized extreme value distributions present a better fit than normal ones.
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