20260921 21163300 1.0 TRUE HLS Landsat Operational Land Imager Surface Reflectance and TOA Brightness (HLS L30) April 2013 - Present (Daily) ImageServer NASA Earthdata GIS Earth Observation Earth Science Biosphere Cryosphere Land Surface Land Cover Satellite Data Remote Sensing Climate Landsat Sentinel ARD Analysis Ready Data HLS provides consistent surface reflectance and brightness data from Landsat OLI and Sentinel-2 MSI, enabling 30 m global land observations every 1.6 days. Algorithms harmonize OLI and MSI through atmospheric correction, cloud masking, co-registration, gridding, and bandpass adjustment. Learn More: https://doi.org/10.5067/HLS/HLSL30.002 HLS provides consistent surface reflectance and brightness data from Landsat OLI and Sentinel-2 MSI, enabling 30 m global land observations every 1.6 days. Algorithms harmonize OLI and MSI through atmospheric correction, cloud masking, co-registration, gridding, and bandpass adjustment. Learn More: https://doi.org/10.5067/HLS/HLSL30.002 The HLS project is funded by NASA’s Satellite Needs Working Group (SNWG) which provides data products developed to meet the needs of stakeholders from US government agencies in cooperation with the Interagency Implementation and Advanced Concepts Team, NASA (NASA/IMPACT)