The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) mission measures the temperature of plants to better understand how much water plants need and how they respond to stress. ECOSTRESS is attached to the International Space Station (ISS) and collects data over the conterminous United States (CONUS) as well as key biomes and agricultural zones around the world and selected FLUXNET validation sites. A map of the acquisition coverage can be found on the ECOSTRESS website.
ECO3ETPTJPL Version 1 is a Level 3 (L3) product that provides evapotranspiration (ET) generated from data acquired by the ECOSTRESS radiometer instrument according to the Priestly-Taylor Jet Propulsion Laboratory (PT-JPL) algorithm described in the Algorithm Theoretical Basis Document (ATBD). The ET product is generated from the Level 2 data products for surface temperature and emissivity, the Level 1 geolocation information, and a significant number of ancillary data inputs from other sources. ET is set by various controls, including radiative and atmospheric demand, and environmental sensitivity, productivity, vegetation physiology, and phenology. PT-JPL is best utilized for natural ecosystems. The L3 ET product is used for creating the Level 4 products, Evaporative Stress Index (ESI) and Water Use Efficiency (WUE).
The ECO3ETPTJPL Version 1 data product contains layers of instantaneous ET, daily ET, canopy transpiration, soil evaporation, ET uncertainty, and interception evaporation.
|File Size||~700 MB|
|Temporal Extent||2018-07-09 to Present|
|Spatial Extent||CONUS, key biomes/agricultural zones, selected FLUXNET sites|
|Coordinate System||None (Swath)|
|Geographic Dimensions||400 km x 400 km|
|Number of Science Dataset (SDS) Layers||6|
|Columns/Rows||5400 x 5632|
|Pixel Size||70 m|
|SDS Name||Description||Units||Data Type||Fill Value||No Data Value||Valid Range||Scale Factor|
|ETinst||Instantaneous Latent Heat Flux||W/m²||32-bit floating point||N/A||N/A||0 to 2000||N/A||ETdaily||Daily Latent Heat Flux||W/m²||32-bit floating point||N/A||N/A||0 to 2000||N/A||ETcanopy||Canopy Evaporation||Percent||32-bit floating point||N/A||N/A||0 to 100||N/A||ETsoil||Soil Evaporation||Percent||32-bit floating point||N/A||N/A||0 to 100||N/A||ETinterception||Interception Evaporation||Percent||32-bit floating point||N/A||N/A||0 to 100||N/A||ETinstUncertainty||ETinst Uncertainty||W/m²||32-bit floating point||N/A||N/A||0 to 2000||N/A|
No quality flags are produced for ECO3ETPTJPL Version 1 data product. Instead, the quality flags of the source data are available in the ECO3ANCQA Version 1 data product.