LSTfusion Data Bundle
Constellr's product deliverables include several layers, which are outlined below.
Data layers
For the LSTfusion product, each data layer is available for a given data and hour, which is indicate in its file name using the ISO 8601 date-time convention. Hence, the date is indicated at UTC time as follows: yyyymmddThhZ.
| Layers | Description | File Format |
|---|---|---|
| metadata_yyyymmddThhZ.json | Metadata description | json |
| lst_yyyymmddThhZ.tiff | LST data | Cloud optimized geotiff |
| lst_composite_yyyymmddThhZ.tiff | Temperature quicklook | Cloud optimized geotiff |
| lst_thumbnail_yyyymmddThhZ.jpg | LST Thumbnail | jpg |
| lst_std_yyyymmddThhZ.tiff | Spatial Standard Deviation | Cloud optimized geotiff |
Spatial Standard Deviation
The STD layer provides the absolute standard deviation for each pixel in the LST layer. The standard deviation is inferred from the uncertainty of the measurements that drive the modelled LST value for each pixel. So, it reflects a value based on the closest sensor measurement available, the resolution and uncertainty of that satellite sensor and the distance to clouds.
| STD value range | Meaning |
|---|---|
| < 3.1 | Data derived from closest Landsat image |
| 3.1 - 3.5 | Data derived from closest Modis/VIIRS image |
| 3.5 - 4.5 | Data derived from closest CLMS image |
| >= 4.5 | Data derived from LSTfusion model |
Naming Convention
- Naming is performed at the point of download
- In the EUP UI, the full name is not shown as the hierarchy is available in the UI structure.
- For the example below, we show 'Cloudmask' in the appropriate folder
Files downloaded from the data store follows the following naming convention:
Naming convention
[Acquisition time] _ [Product] _ [data order ID]
Example
20240512T095854Z _ LSTfusion _ cae562b6-04a2-48cf-a044-eb61064e4c9b
Last update: September, 2025
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