#Landsat & #Sentinel-2 data harmonized to produce seamless, "stackable" products for both sensors
The Harmonized Landsat and Sentinel-2 (HLS) project is a NASA initiative aiming to produce a Virtual Constellation (VC) of surface reflectance (SR) data acquired by the Operational Land Imager (OLI) and Multi-Spectral Instrument (MSI) aboard Landsat 8 and Sentinel-2 remote sensing satellites, respectively.
https://www.sciencedirect.com/science/article/pii/S0034425718304139?via%3Dihub