| Long name | Landsat data set |
| Short name | L8-9 |
| Sensor type | Optical |
| Platform | Landsat 8 and Landsat 9 |
| Key file name (use to open data set) | *_MTL.txt or *_MTL.xml for Collection 2 |
| Supported file extensions | .txt, .tif, .xml for Collection 2 |
| Sections |
Data product name and description |
Data product name and description
| Sensor | Spectral bands: |
Spatial resolution (m)* |
Notes |
|---|---|---|---|
| PAN (OLI) | 500 - 680 (Panchromatic) | 15 | 185 km swath width |
| MS (OLI) | 435 - 451 (Coastal Aerosol) |
30 | 185 km swath width |
| TIRS | 10600 - 11190 (Thermal) |
30 | 185 km swath width |
* Resolution is always nadir position unless noted otherwise.
| Processing level | Horizontal accuracy (m) | Description/notes |
|---|---|---|
| L1GT | N/A | Corrected systematically for ground and terrain. |
| L1T/1TP | N/A | Corrected for ground and terrain.
L1TP data is provided in relative top-of-atmosphere (TOA) reflectance. |
A Landsat 8-9 data set is organized in a specific folder structure on disk. GDB uses this folder structure and the file names to identify the data product type.
In CATALYST Professional programs, such as Focus, you can open a Landsat 8-9 data set in the File Selector window by selecting the *_MTL.txt file or the *_MTL.xml file for Collection 2.
When opening a Landsat 8-9 data set, the files read by GDB are as described in the following table.
| File name | Format | Required | Contents/details |
|---|---|---|---|
| *_MTL.txt or *_MTL.xml for Collection 2 | Text | Yes | Key file name. Use this file to open the data set. |
| *.TIF | GeoTIFF | Yes | TIFF image file. Contains imagery information. |
| *_ANG.txt | ASCII | No | Angle-coefficent file that provides model coefficients of the sensor-viewing angle. With this file, you can create angle bands and compute solar and sensor-viewing angles per pixel. |
Returned data for supported format
Landsat 8-9 data can be opened directly in its raw vendor format or imported into a PCIDSK (*.pix) file using the key file name. For optimal processing, use the PCIDSK format. The data structure, after it is opened by GDB, is as described in the following table.
| Data product | Data returned | Details |
|---|---|---|
| Landsat 8-9 15m PAN | 1 x [16U] raster channel |
Panchromatic band.
Metadata (*_MTL.txt) file |
| Landsat 8 30m MS | 9 x [16U] raster channels |
Coastal Aerosol, Blue, Green, Red, NIR, SWIR (2), Cirrus, Quality bands.
Note: Quality band is only available for Collection 1
Metadata (*_MTL.txt) file |
| Landsat 8 30m TIRS | 2 x [16U] raster channels |
Two thermal bands.
Metadata (*_MTL.txt) file |
| Landsat 8 30m Quality | 5 x [8U] raster channels |
Quality band.
Metadata (*_MTL.txt) file |
| Landsat 8-9 Collection 2 Level 1 30m MS and Thermal | 16 (Combined) (14 OLI) x [16U] raster channels |
Coastal Aerosol, Blue, Green, Red, NIR, SWIR (2), Cirrus, Thermal (2) (Combined only), Quality, Saturation and Occlusion, Angle (4) bands.
4 Confidence bands. Fill, Dilated Cloud, Cirrus, Cloud, Cloud Shadow, Snow, Clear, Water, Data Saturation (8), Terrain occlusion bands. Metadata (*_MTL.xml) file |
| Landsat 8-9 Collection 2 Level 1 30m Thermal | 4 x [16U] raster channels |
Thermal (2), Quality, Occlusion bands.
4 Confidence bands. Fill, Dilated Cloud, Cirrus, Cloud, Cloud Shadow, Snow, Clear, Water, Terrain occlusion bands. Metadata (*_MTL.xml) file |
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