Long name | Landsat data set |
Short name | L8 |
Sensor type | Optical |
Platform | Landsat 8 |
Key file name (use to open data set) | *_MTL.txt |
Supported file extensions | .txt, .tif |
Sections |
Data product name and description |
Data product name and description
Sensor | Spectral bands: |
Spatial resolution (m)* |
Notes |
---|---|---|---|
MS | 435 - 451 (Coastal Aerosol) |
30 | 185 km swath width |
* Resolution is always nadir position unless noted otherwise.
A Landsat 8 Surface Reflectance 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 Surface Reflectance data set in the File Selector window by selecting the *_MTL.txt file.
When opening a Landsat 8 Surface Reflectance data set, the files read by GDB are as described in the following table.
File name | Format | Required | Contents/details |
---|---|---|---|
*_MTL.txt | 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, from which you can create angle bands and compute solar and sensor-viewing angles per pixel. |
Returned data for supported format
Landsat 8 Surface Reflectance 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 30m Surface Reflectance | 7 x [16S] raster channels |
7 x Surface Reflectance bands (Coastal Aerosol, Blue, Green, Red, NIR, SWIR1, SWIR2).
1 x Pixel Quality band. 1 x Radiometric Saturation band. 1 x Aerosol Level band. |
Landsat 8 30m Azimuth/Zenith | 4 x [16S] raster channels |
Solar Azimuth, Solar Zenith, Sensor Azimuth, Sensor Zenith bands. |
Landsat 8 30m Quality | 3 x [8U] raster channels |
Cloud Confidence, Cirrus Confidence, Aerosol Level bands. |
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