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.
The ECO4WUE Version 1 data product provides Water Use Efficiency (WUE) data generated according to the Priestley-Taylor Jet Propulsion Laboratory (PT-JPL) algorithm described in the ECOSTRESS Level 4 WUE Algorithm Theoretical Basis Document (ATBD). WUE is the ratio of carbon stored by plants to water evaporated by plants. This ratio is given as grams of carbon stored per kilogram of water evaporated over the course of the day from sunrise to sunset on the day when the ECOSTRESS granule was acquired.
The ECO4WUE Version 1 data product contains a single layer of water use efficiency.
|File Size||~120 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||1|
|Columns/Rows||5400 x 5632|
|Pixel Size||70 m|
|SDS Name||Description||Units||Data Type||Fill Value||No Data Value||Valid Range||Scale Factor|
|WUEavg||Water Use Efficiency||GPP/ET||32-bit floating point||N/A||N/A||0 to 20||N/A|
No quality flags are produced for the ECO4WUE Version 1 data product. Instead, the quality flags of the source data are available in the ECO3ANCQA Version 1 data product.