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 ECO2CLD Version 1 data product provides a cloud mask that can be used to determine cloud cover for the ECO1BRAD, ECO2LSTE, ECO3ETPTJPL, ECO4ESIPTJPL, and ECO4WUE data products. The ECOSTRESS Level 2 cloud product was derived using the five calibrated thermal bands in a multispectral cloud-conservative thresholding approach for acquisitions prior to May 14, 2019. For data collected after May 15, 2019, calculations are based on data values for TIR bands 2, 4, and 5 only to accommodate direct streaming of data from the ISS as mentioned in the Known Issues section. The details of the algorithm are provided in the Algorithm Theoretical Basis Document (ATBD). The corresponding ECO1BGEO data product is required to georeference the ECO2CLD data product.
The ECO2CLD Version 1 data product contains a single cloud mask layer. Information on how to interpret the bit fields in the cloud mask is provided in section 3.1 of the User Guide.
|File Size||~30 KB|
|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|
|Cloud Mask||Cloud Mask||Bit Field||8-bit unsigned integer||N/A||N/A||0 to 255||N/A|
|Bit Field||Long Name||Result|
|0||Cloud Mask Flag||0=not determined; 1=determined|
|1||Final Cloud Plus Region-growing||0=no; 1=yes|
|2||Final Cloud, either one of bits 2, 3 ,or 4 set||0=no; 1=yes|
|3||band 4 Brightness Threshold Test||0=no; 1=yes|
|4||Band 4-5 Thermal Difference test||0=no; 1=yes|
|5||Land/Water Mask||0=land; 1=water|
Information on the quality of this product is not provided.