15-day and 30-day Gross Primary Productivity (GPP) estimated across the forest of Hyytiälä, Finland.

The GPP maps are based on an empirical model that integrates and linearly correlate the RS-based vegetation index derived from Sentinel-2 images and in situ measurements of environmental variable with in situ measurements of GPP.

For detailed information about the methodology: Spinosa, Anna, Mario Alberto Fuentes-Monjaraz, and Ghada El Serafy. 2023. "Assessing the Use of Sentinel-2 Data for Spatio-Temporal Upscaling of Flux Tower Gross Primary Productivity Measurements" Remote Sensing 15, no. 3: 562. https://doi.org/10.3390/rs15030562

15-day and 30-day maps for 2019, 2020, and 2021.