Data Visualization

Climatic drivers of productivity dynamics

Data Visualization Created 08 Oct 2019 Last modified 17 Oct 2019
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Climatic drivers of productivity dynamics - goodness of fit (Pearson`s r) of the linear regressions

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The vegetation productivity index is a dimensionless measure. It is calculated as the integral value of the yearly vegetation index. Hence, digital values indicate the approximated productivity of the land surface vegetation. 


The indicator addresses trends in land surface productivity derived from remote sensing observed time series of vegetation indices between 2000-2016. The vegetation index used in the indicator is the Plant Phenology Index (PPI, Jin and Eklundh, 2014). PPI is based on the MODIS Nadir BRDF-Adjusted Reflectance product (MODIS MCD43 NBAR. The product provides reflectance data for the MODIS “land” bands (1 - 7) adjusted using a bi-directional reflectance distribution function. This function models values as if they were collected from a nadir-view to remove so called cross-track illumination effects. The product is distributed with 500 m pixel size (MODIS Sinusoidal Grid) with 8-days compositing period. The web map service was derived from a 16 bit time series.

Data sources

Plant Phenology Index provided by Lund University

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