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| Titel |
Low-dimensional modeling of the dynamics of rainfed wheat in semi-arid region of Settat (Morocco), from NDVI satellite data |
| VerfasserIn |
Sylvain Mangiarotti, Laurent Drapeau, Raphaël Coudret, Lionel Jarlan |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250054753
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| Zusammenfassung |
| Wheat production mostly results from rainfed agriculture in Morocco. As a consequence, yields largely rely on the climatic conditions and its associated variability. The dynamics of the vegetation in semi-arid regions is characterized by a low predictability. Nonetheless, previous nonlinear analyses have also revealed dynamics of low dimension, promoting the investigations towards chaotic behavior and opening the way to a low-dimension modeling. Vegetation index from AVHRR sensor allows for a long term (almost 30 years) documentation of such dynamics. This information is used as a proxy of the dynamics of wheat and is analyzed over the province of Settat (Morocco) through a global modeling approach. Low-dimensional models obtained from this approach are introduced and discussed. |
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