ECO2LSTE v001

ECOSTRESS Land Surface Temperature and Emissivity Daily L2 Global 70 m


PI: Glynn Hulley

Description

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 ECO2LSTE Version 1 data product provides atmospherically corrected land surface temperature and emissivity (LST&E) values derived from five thermal infrared (TIR) bands. The ECO2LSTE data product was derived using a physics-based Temperature/Emissivity Separation (TES) algorithm. The ECO2LSTE is provided as swath data and has a spatial resolution of 70 meters (m). The corresponding ECO1BGEO data product is required to georeference the ECO2LSTE data product.

The ECO2LSTE Version 1 data product contains layers of LST, emissivity for bands 1 through 5, quality control for LST&E, LST error, emissivity error for bands 1 through 5, wideband emissivity, and Precipitable Water Vapor (PWV). For acquisitions after May 15, 2019, data products contain data values for TIR bands 2, 4 and 5 only. TIR bands 1 and 3 contain fill values to accommodate direct streaming of data from the ISS as mentioned in the Known Issues section.

Characteristics

Collection and Granule

Collection

Characteristic Description
CollectionECOSTRESS
DOI10.5067/ECOSTRESS/ECO2LSTE.001
File Size~683 MB
Temporal ResolutionVaries
Temporal Extent2018-07-09 to Present
Spatial ExtentCONUS, key biomes/agricultural zones, selected FLUXNET sites
Coordinate SystemNone (Swath)
DatumN/A
File FormatHDF5
Geographic Dimensions400 km x 400 km

Granule

Characteristic Description
Number of Science Dataset (SDS) Layers15
Columns/Rows5400 x 5632
Pixel Size70 m

Layers

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor Additional Offset
LST Land Surface Temperature Kelvin 16-bit unsigned integer 0 N/A 7500 to 65535 0.02 N/A
QC Quality Control for LST and emissivity N/A 16-bit unsigned integer N/A N/A 0 to 65535 N/A N/A
Emis1 Band 1 Emissivity N/A 8-bit unsigned integer 0 N/A 1 to 255 0.002 0.49
Emis2 Band 2 Emissivity N/A 8-bit unsigned integer 0 N/A 1 to 255 0.002 0.49
Emis3 Band 3 Emissivity N/A 8-bit unsigned integer 0 N/A 1 to 255 0.002 0.49
Emis4 Band 4 Emissivity N/A 8-bit unsigned integer 0 N/A 1 to 255 0.002 0.49
Emis5 Band 5 Emissivity N/A 8-bit unsigned integer 0 N/A 1 to 255 0.002 0.49
LST_err Land Surface Temperature error Kelvin 8-bit unsigned integer 0 N/A 1 to 255 0.04 N/A
Emis1_err Band 1 Emissivity error N/A 16-bit unsigned integer 0 N/A 1 to 65535 0.0001 N/A
Emis2_err Band 2 Emissivity error N/A 16-bit unsigned integer 0 N/A 1 to 65535 0.0001 N/A
Emis3_err Band 3 Emissivity error N/A 16-bit unsigned integer 0 N/A 1 to 65535 0.0001 N/A
Emis4_err Band 4 Emissivity error N/A 16-bit unsigned integer 0 N/A 1 to 65535 0.0001 N/A
Emis5_err Band 5 Emissivity error N/A 16-bit unsigned integer 0 N/A 1 to 65535 0.0001 N/A
EmisWB Wide Band Emissivity N/A 8-bit unsigned integer 0 N/A 1 to 255 0.002 0.49
PWV Precipitable Water Vapor cm 16-bit unsigned integer 0 N/A 1 to 65535 0.001 N/A

Product Quality

Quality information, including the bit definition index for the quality layer, is provided in section 2.4 of the User Guide.

Known Issues

  • Data acquisition gaps: ECOSTRESS was launched on June 29, 2018 and moved to autonomous science operations on August 20, 2018 following a successful in-orbit checkout period. On September 29, 2018, ECOSTRESS experienced an anomaly with its primary mass storage unit (MSU). ECOSTRESS has a primary and secondary MSU (A and B). On December 5, 2018, the instrument was switched to the secondary MSU and science operations resumed. On March 14, 2019, the secondary MSU experienced a similar anomaly temporarily halting science acquisitions. On May 15, 2019, a new data acquisition approach was implemented and science acquisitions resumed. To optimize the new acquisition approach TIR bands 2, 4 and 5 are being downloaded. The data products are as previously, except the bands not downloaded contain fill values (L1 radiance and L2 emissivity).

Documentation

Using the Data

Data In Action

ECOSTRESSED: Measuring Temperatures of Cities During Extreme Heatwaves

Tools

Citation

DOI: 10.5067/ECOSTRESS/ECO2LSTE.001

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