ECOSTRESS Plant Temperature Geolocation Data with 70-Meter Resolution

Global data between 52° N and 52° S latitudes provides geolocation information for radiance pixels measured by the ECOSTRESS instrument on the International Space Station. The Level 1B geolocation product, version 002, is produced by LPCLOUD and corrects spacecraft ephemeris using Landsat-derived imagery. Data acquisition began in June 2018, with known operational gaps in late 2018, 2019, and early 2020.

Use Cases

• Assign precise latitude and longitude coordinates to each radiance pixel from the companion ECO_L1B_RAD product for spatial analysis.
• Analyze solar and view geometry information to correct for illumination and observation angle effects in thermal imagery.
• Use the surface height layer to model topographic influences on plant temperature and water stress.
• Filter data by the 'L1GEOMetadata/OrbitCorrectionPerformed' field to select scenes with geolocation accuracy better than 50 meters.
• Leverage the land/water fraction per pixel to separate terrestrial plant temperature signals from aquatic bodies.

Strengths

• Geolocation accuracy is better than 50 meters for scenes where image matching with a Landsat ortho-base was successful.
• Data provides global coverage between 52° North and 52° South latitudes, capturing diverse ecosystems.
• Product contains multiple data layers including latitude, longitude, solar/view geometry, surface height, and land/water fraction.

Limitations

• Uncorrected geolocation data can have errors up to 7 kilometers, as indicated by the 'OrbitCorrectionPerformed' metadata field.
• Data acquisition experienced multiple gaps due to instrument anomalies in 2018, 2019, and February 2020.
• The spatial resolution of 70 meters may be coarse for studying fine-scale ecological processes.

Provenance

Source

NASA ECOSTRESS mission, processed by LPCLOUD.

Collection Method

Data collected by the ECOSTRESS thermal radiometer on the International Space Station, with geolocation corrected via image matching to a global Landsat ortho-base.

Time Range

From June 2018 onward, with intermittent gaps.

Freshness

null

Geography

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