Harmonized Sentinel-2 Surface Reflectance Daily Global 30m v1.5

Global daily land observations at 30-meter spatial resolution are provided by the Harmonized Landsat Sentinel-2 project, which combines data from the Sentinel-2A and Sentinel-2B satellites. The HLSS30 v1.5 product delivers 13 spectral bands, four angle bands, and a quality assessment band as separate Cloud Optimized GeoTIFFs, processed for atmospheric correction and gridded to a common Military Grid Reference System for time-series analysis. This dataset was produced by NASA to meet U.S. government agency needs but was decommissioned in January 2022 in favor of an improved version.

Use Cases

• Time-series analysis of land surface changes using stackable 30m NBAR reflectance data across 13 spectral bands.
• Cloud and shadow masking for clear-sky composite generation utilizing the quality assessment (QA) band.
• BRDF-adjusted reflectance studies for normalizing illumination and view angles across acquisitions.
• Global land monitoring at a high temporal frequency, enabled by the combined Sentinel-2 satellite constellation.

Strengths

• Provides a high revisit frequency, with sources indicating global coverage every 1.6 to 3 days.
• Includes 13 spectral bands plus four angle bands and a QA band, offering detailed surface reflectance information.
• Data is processed with a set of algorithms for atmospheric correction, co-registration, and bandpass adjustment to ensure consistency.
• Gridded to a common MGRS tiling system with the HLSL30 product, enabling direct stacking for analysis.

Limitations

• This v1.5 product was decommissioned on January 4, 2022, and is not validated for science use; the provider recommends using HLSS30 V2.
• Sources conflict on the exact temporal resolution, citing both 'every 1.6 days' and 'every 2-3 days'.
• Known service interruptions occurred between June 1 and June 15, 2021, during data restaging.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Derived from Sentinel-2A and Sentinel-2B Multi-Spectral Instrument (MSI) data products, processed through atmospheric correction, masking, co-registration, and normalization algorithms.

Time Range

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Freshness

2026-03-13 01:38:45.903751

Geography

Global