ECOSTRESS Gridded Land Surface Temperature and Emissivity Instantaneous L2 Global 70 m

PI: Simon Hook, Glynn Hulley


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 globally between 52° N and 52° S latitudes. A map of the acquisition coverage can be found in figure 2 on the ECOSTRESS website.

The ECOSTRESS Gridded Land Surface Temperature and Emissivity Instantaneous Level 2 Global 70 m (ECO_L2G_LSTE) Version 2 data product provides atmospherically corrected land surface temperature and emissivity (LST&E) values derived from five thermal infrared (TIR) bands. The ECO_L2G_LSTE data product was derived using a physics-based Temperature and Emissivity Separation (TES) algorithm. This data product is a gridded version of the ECO_L2_LSTE Version 2 data product that was resampled using nearest neighbor, projected to a globally snapped 0.0006° grid, and repackaged as the ECO_L2G_LSTE data product. The ECO_L2G_LSTE product has a spatial resolution of 70 meters (m).

The ECO_L2G_LSTE Version 2 data product contains 8 layers distributed in an HDF5 format file including LST, LST error, wideband emissivity, height, view zenith angle, quality flags, and cloud and water masks.

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Collection and Granule


Characteristic Description
File Size~300 MB
Temporal ResolutionVaries
Temporal Extent2018-07-09 to Present
Spatial ExtentGlobal (+/- 52 degrees latitude)
Coordinate SystemGeographic Latitude and Longitude
DatumWorld Geodetic System (WGS84)
File FormatHDF5
Geographic Dimensions400 km x 400 km


Characteristic Description
Number of Science Dataset (SDS) Layers8
Columns/Rows5400 x 5632
Pixel Size70 m

Layers / Variables

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor
LST Land Surface Temperature Kelvin 32-bit floating point NaN N/A N/A N/A
LST_err Land Surface Temperature error Kelvin 32-bit floating point NaN N/A N/A N/A
EmisWB Wide Band Emissivity N/A 32-bit floating point NaN N/A 0 to 1 N/A
height Surface elevation of observation Meters 32-bit floating point NaN N/A N/A N/A
view_zenith View zenith angle of observation Degree 32-bit floating point NaN N/A N/A N/A
QC Low-level QC flag from the L2 LSTE product Bit Field 16-bit unsigned integer 65535 N/A N/A N/A
cloud Cloud mask N/A 8-bit unsigned integer 255 N/A 0, 1 N/A
water Water mask N/A 8-bit unsigned integer 255 N/A 0, 1 N/A

Cloud Mask Values

Class Description
0 Clear
1 Cloudy

Water Mask Values

Class Description
0 Land
1 Water

Product Quality

Quality information for this product, including the bit definition index for the quality layer, is obtained from the ECO_L2_LSTE product, and is provided in Section 2.4 of the ECO_L2_LSTE User Guide.

Known Issues

  • Data acquisition gap: 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). This approach was implemented from May 15, 2019, through April 28, 2023.

  • Data acquisition gap: From February 8 to February 16, 2020, an ECOSTRESS instrument issue resulted in a data anomaly that created striping in band 4 (10.5 micron). These data products have been reprocessed and are available for download. No ECOSTRESS data were acquired on February 17, 2020, due to the instrument being in SAFEHOLD. Data acquired following the anomaly have not been affected.

  • Data acquisition: ECOSTRESS has now successfully returned to 5-band mode after being in 3-band mode since 2019. This feature was successfully enabled following a Data Processing Unit firmware update (version 4.1) to the payload on April 28, 2023. To better balance contiguous science data scene variables, 3-band collection is currently being interleaved with 5-band acquisitions over the orbital day/night periods.

About the image

ECOSTRESS land surface temperature data from the ECO_L2G_LSTE product over Mt. Hood, Oregon, United States, acquired on January 30, 2023.

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ECO_L2G_LSTE User Guide
ECO_L2_LSTE User Guide
Algorithm Theoretical Basis Document (ATBD)
Product Specification Document (PSD)
Algorithm Specification Document (ASD)

Using the Data

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