Global Harmonized surface reflectance products from NASA/ USGS Landsat 8 and European sentinel 2a/b missions are being processed by NASA beginning summer 2020. HLS product support studies that require imagery every 2-3 days, including studies of vegetation phenology, as well as longer-term phenology as well as longer-term analysis of ecosystem changes. HLS global products are being produced by the Interagency Implementation and Advanced Concept Team (IMPACT) cloud computing at Marshal Space Flight Center and distributed by NASA Land process distributed Active Archive Center (LP-DAAC).
NASA / USGS Landsat 8和欧洲Sentinel a/b任务的全球协调表面反射产品将由NASA于2020年夏季开始处理。HLS产品每2-3天成像一次，支撑的研究包括植被物候学研究, 更长的时间物候学以及生态系统变化的长期分析。HLS全球产品由马歇尔太空飞行中心的IMPACT云计算生产，并由NASA陆地分布式存档中心 (LP-DAAC) 分发。
