ECOSTRESS Ancillary NDVI and Albedo Data at 70-Meter Resolution

ECOSTRESS Tiled Ancillary NDVI and Albedo L2 Global 70 m V002 provides the Normalized Difference Vegetation Index (NDVI) and albedo measurements aligned with daytime satellite overpasses. The product is derived from VIIRS and Harmonized Landsat Sentinel data using a Bayesian timeseries fusion algorithm. It is produced by the LPCLOUD organization for the ECOSTRESS mission aboard the International Space Station.

Use Cases

• Model plant evapotranspiration by integrating NDVI and albedo layers with ECOSTRESS land surface temperature data.
• Assess vegetation health and stress response by analyzing temporal changes in the NDVI feature across the 52° N to 52° S latitude band.
• Quantify surface energy budget uncertainty using the provided albedo uncertainty layer for radiative flux calculations.
• Fuse multi-sensor data for high-resolution land monitoring by applying the STARS algorithm methodology to VIIRS and HLS inputs.

Strengths

• Provides four specific data layers: NDVI, NDVI uncertainty, albedo, and albedo uncertainty.
• Offers a high spatial resolution of 70 meters per pixel.
• Covers a global latitudinal range between 52° N and 52° S.

Limitations

• Data availability is limited to tiles with corresponding daytime ECOSTRESS LSTE overpasses, creating spatial and temporal gaps.
• The dataset experienced an acquisition anomaly in September 2018, affecting continuity.

Provenance

Source

NASA/NOAA Suomi NPP VIIRS and Harmonized Landsat Sentinel (HLS) data, processed by LPCLOUD for the ECOSTRESS mission.

Collection Method

Data fusion performed using the Spatial Timeseries for Automated high-Resolution multi-Sensor (STARS) algorithm, a Bayesian timeseries methodology.

Time Range

Collection began after the ECOSTRESS instrument launch on June 29, 2018.

Freshness

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Geography

Global coverage between 52° North and 52° South latitudes.