POTENTIAL OF MERIS fAPAR FOR DROUGHT DETECTION
作者： Giovanni Laguardia , S. Rossi , M. Niemeyer , M. Robustelli , N. Gobron
DOI:
关键词: Anomaly (natural sciences) 、 Geography 、 Normalized Difference Vegetation Index 、 Precipitation index 、 Photosynthetically active radiation 、 Medium resolution 、 Spectroradiometer 、 Remote sensing
摘要: This work evaluates the potential for drought detection of Fraction Absorbed Photosynthetically Active Radiation (fAPAR) estimations operationally produced by European Space Agency (ESA) as Medium Resolution Imaging Spectroradiometer (MERIS) Level 2 Land Product. MERIS fAPAR daily data were used to produce 10-day time composites. The selected study area was Iberia Peninsula. Seasonal anomalies calculated dataset well those other indicators from different sources, such Standardized Precipitation Index, a widely index, or Normalized Difference Vegetation Index (NDVI). resulting series anomaly maps then compared assess correlation among them and their ability detect recent events in area. Results show that has capacity droughts offers an enhanced performance NDVI.
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