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GI_Forum 2013, Volume 1Creating the GISociety – Conference Proceedings
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Verlag der Österreichischen Akademie der Wissenschaften Austrian Academy of Sciences Press
A-1011 Wien, Dr. Ignaz Seipel-Platz 2
Tel. +43-1-515 81/DW 3420, Fax +43-1-515 81/DW 3400 https://verlag.oeaw.ac.at, e-mail: verlag@oeaw.ac.at |
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DATUM, UNTERSCHRIFT / DATE, SIGNATURE
BANK AUSTRIA CREDITANSTALT, WIEN (IBAN AT04 1100 0006 2280 0100, BIC BKAUATWW), DEUTSCHE BANK MÜNCHEN (IBAN DE16 7007 0024 0238 8270 00, BIC DEUTDEDBMUC)
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GI_Forum 2013, Volume 1, pp. 496-499, 2013/06/20
Creating the GISociety – Conference Proceedings
We have created an indicator system whose main aim is to assess significant changes in the habitats existing in Sierra Nevada Natura 2000 site. This system is able to automatically download, process and analyse raw data from two MODIS products (snow cover and vegetation indexes). Besides, the system calculates automatically several indicators useful to assess different ecological functions of Sierra Nevada habitats: phenology, seasonality of biomass production, duration of snow cover, etc. We also calculate trends in those indicators. These indicators are aggregated into composite indexes that allow the identification of habitats suffering significant changes in both their ecological functions and physical context. Finally we created an ontology that adds semantic meaning to the whole dataset. This allows the formulation of complex questions regarding the changes observed in habitats.