eSIF product: enhanced SIF by combining TROPOSIF, MODIS reflectance and ERA-5 shorwave radiation

The eSIF product is generaged by combining SIF and NIRvP data from different data sources. The original SIF data (TROPOSIF v2.1 L2B) are from the TROPOMI instrument onboard the Sentinel-5P mission, whereas NIRvP data are obtained from MODIS spectral reflectance and ERA5 reanalysis data. The resulting eSIF product has a spatial resolution of 0.05° and a temporal resolution of 8 days. For details, please refer to: Liu, X., Liu, L., Bacour, C., Guanter, L., Chen, J., Ma, Y., Chen, R., & Du, S. (2023). A simple approach to enhance the TROPOMI solar-induced chlorophyll fluorescence product by combining with canopy reflected radiation at near-infrared band. Remote Sensing of Environment, 284, 113341, http://doi.org/10.1016/j.rse.2022.113341