6533b7ddfe1ef96bd1273c13
RESEARCH PRODUCT
Tracking seasonal drought effects on ecosystem light use efficiency in a mediterranean forest using climatic and remote sensing data
Alvaro MorenoBeatriz MartínezFabio MaselliMarta ChiesiG. SeufertJoaquin MeliaMaría Amparo Gilabertsubject
CanopyMediterranean climateEnvironmental scienceRadiometryEcosystemVegetationPhotochemical Reflectance IndexWater contentZenithRemote sensingdescription
Daily values of light use efficiency (LUE) of a Mediterranean forest throughout five years have been analyzed in terms of different spectral indices obtained from MODIS products and which are informative on the water stress conditions. Although correlations between LUE and the different indices are rather high, the inter-annual variation of LUE due to the summer water stress is not well identified in most of them. In particular, the PRI (photochemical reflectance index) inter-annual variation has been found to be mostly attributable to concurrent variations in sun and view zenith angles. For the study area and at MODIS spatial resolution, the different indices are informative on changes in pigments and canopy structure related to the vegetation response to prolonged water stress.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-07-01 | 2012 IEEE International Geoscience and Remote Sensing Symposium |