Landsat Collection 2 Level-2

Long name	Landsat data set
Short name	L8-9
Sensor type	Optical
Platform	Landsat 4 to Landsat 9
Key file name (use to open data set)	_MTL.txt or _MTL.xml
Supported file extensions	.txt, .TIF, .xml
Sections	Data product name and description Distribution disk files Returned data for supported format References

Data product name and description

Note: The information provided herein is based on the data distributor's documentation cited under References.

Table 1. **Image Bands 30m spectral resolution**
Sensor	Spectral bands: Spectral range (nm)
Landsat 8 / 9	Surface Reflectance 435 - 451 (Coastal Aerosol) Surface Reflectance 452 - 512 (Blue) Surface Reflectance 533 - 590 (Green) Surface Reflectance 636 - 673 (Red) Surface Reflectance 851 - 879 (Near Infrared) Surface Reflectance 1566 - 1651 (Short Wave Infrared) Surface Reflectance 2107 - 2294 (Short Wave Infrared) Surface Temperature from Thermal Infrared
Landsat 7	Surface Reflectance 450 - 520 (Blue) Surface Reflectance 520 - 600 (Green) Surface Reflectance 630 - 690 (Red) Surface Reflectance 770 - 900 (Near Infrared) Surface Reflectance 1550 - 1750 (Short Wave Infrared) Surface Temperature from Thermal Infrared 1040 - 1250 Surface Reflectance 2064 - 2345 (Short Wave Infrared)
Landsat 4 / 5	Surface Reflectance 450 - 520 (Blue) Surface Reflectance 520 - 600 (Green) Surface Reflectance 630 - 690 (Red) Surface Reflectance 760 - 900 (Near Infrared) Surface Reflectance 1550 - 1750 (Short Wave Infrared) Surface Temperature from Thermal Infrared 1040 - 1250 Surface Reflectance 2080 - 2350 (Short Wave Infrared)

Table 2. **Surface Temperature Intermediate Bands**
Sensor	Bands
Landsat 8 / 9	Thermal Radiance Upwelled Radiance Downwelled Radiance Atmospheric Transmittance Atmospheric Emissivity Emissivity Standard Deviation Pixel Distance to Cloud
Landsat 4 / 5 / 7	Thermal Radiance Upwelled Radiance Downwelled Radiance Atmospheric Transmittance Atmospheric Emissivity Emissivity Standard Deviation Pixel Distance to Cloud Atmospheric Opacity

Table 3. **Quality Assessment (QA) Bands**
Sensor	Bands
Landsat 8 / 9	Surface Reflectance Aerosol QA Surface Temperature QA Level-1 QA Radiometric Saturation QA
Landsat 4 / 5 / 7	Surface Reflectance Cloud QA Surface Temperature QA Level-1 QA Radiometric Saturation QA

Table 4. **Confidence and Level Bands from QA Bands**
Sensor	Bands	QA Band
Landsat 8 / 9	Cloud Confidence Cloud Shadow Confidence Snow / Ice Confidence Cirrus Confidence Aerosol Level	Level-1 QA Level-1 QA Level-1 QA Level-1 QA Surface Reflectance Aerosol QA
Landsat 4 / 5 / 7	Cloud Confidence Cloud Shadow Confidence Snow / Ice Confidence	Level-1 QA Level-1 QA Level-1 QA

Distribution disk files

A Landsat Collection 2 Level-2 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.

Warning: Data sets for this sensor are organized in a specific folder structure on disk. GDB uses this structure and the file names to identify the data product type. Do not alter the folder structure or any file names prior to data ingestion to ensure the image data and auxiliary information are imported correctly.

In CATALYST Professional programs, such as Focus, you can open a Landsat Collection 2 Level-2 data set in the File Selector window by selecting the *_MTL.txt file or the *_MTL.xml file.

When opening a Landsat Collection 2 Level-2 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	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 Collection 2 Level-2 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. Note that these channels and segments are present when the full bundle science product (SP) is used in GDB. Opening a partial bundle surface reflectance (SR) product will give only surface reflectance layers.

Data product	Data returned	Details
Landsat 8 / 9	10 x [16U] raster channels 8 x [16S] raster channels 6 x [8U] raster channels 21 x [BIT] bitmap segments 2 x [TEX] text segments	Coastal Aerosol, Blue, Green, Red, Near Infrared, Short Wave Infrared 1, Short Wave Infrared 2, Surface Temperature, Level-1 QA, Radiometric Saturation QA. Thermal Radiance, Upwelled Radiance, Downwelled Radiance, Atmospheric Transmittance, Atmospheric Emissivity, Emissivity Standard Deviation, Pixel Distance to Cloud, Surface Temperature QA. SR Aerosol QA, Cloud Confidence, Cloud Shadow Confidence, Snow / Ice Confidence, Cirrus Confidence, Aerosol Level. Fill, Dilated Cloud, Cirrus, Cloud, Cloud Shadow, Snow, Clear, Water, Band 1 Data Saturation, Band 2 Data Saturation, Band 3 Data Saturation, Band 4 Data Saturation, Band 5 Data Saturation, Band 6 Data Saturation, Band 7 Data Saturation, Band 8 Data Saturation, Terrain occlusion, Aerosol: Fill, Valid aerosol retrieval, Aerosol: Water, Interpolated Aerosol. Metadata (_MTL.txt) file, Angle Coefficient (_ANG.txt) file
Landsat 7	9 x [16U] raster channels 9 x [16S] raster channels 4 x [8U] raster channels 16 x [BIT] bitmap segments 1 x [TEX] text segment	Blue, Green, Red, Near Infrared, Short Wave Infrared 1, Surface Temperature, Short Wave Infrared 2, Level-1 QA, Radiometric Saturation QA. Thermal Radiance, Upwelled Radiance, Downwelled Radiance, Atmospheric Transmittance, Atmospheric Emissivity, Emissivity Standard Deviation, Pixel Distance to Cloud, Atmospheric Opacity, Surface Temperature QA. SR Cloud QA, Cloud Confidence, Cloud Shadow Confidence, Snow / Ice Confidence. Fill, Dilated Cloud, Cloud, Cloud Shadow, Snow, Clear, Water, Band 1 Data Saturation, Band 2 Data Saturation, Band 3 Data Saturation, Band 4 Data Saturation, Band 5 Data Saturation, Band 6L Data Saturation, Band 7 Data Saturation, Band 6H Data Saturation, Dropped Pixel. Metadata (*_MTL.txt) file
Landsat 4 / 5	9 x [16U] raster channels 9 x [16S] raster channels 4 x [8U] raster channels 15 x [BIT] bitmap segments 1 x [TEX] text segment	Blue, Green, Red, Near Infrared, Short Wave Infrared, Surface Temperature, Short Wave Infrared, Level-1 QA, Radiometric Saturation QA. Thermal Radiance, Upwelled Radiance, Downwelled Radiance, Atmospheric Transmittance, Atmospheric Emissivity, Emissivity Standard Deviation, Pixel Distance to Cloud, Atmospheric Opacity, Surface Temperature QA. SR Cloud QA, Cloud Confidence, Cloud Shadow Confidence, Snow / Ice Confidence. Fill, Dilated Cloud, Cloud, Cloud Shadow, Snow, Clear, Water, Band 1 Data Saturation, Band 2 Data Saturation, Band 3 Data Saturation, Band 4 Data Saturation, Band 5 Data Saturation, Band 6 Data Saturation, Band 7 Data Saturation, Dropped Pixel. Metadata (*_MTL.txt) file

References

For more information, visit: landsat.usgs.gov

LSDS-1328 Version 6.0 Landsat 8-9 Operational Land Imager (OLI) – Thermal Infrared Sensor (TIRS) Collection 2 Level 2 (L2) Data Format Control Book (DFCB)

LSDS-1337 Version 5.0 Landsat Enhanced Thematic Mapper Plus (ETM+) Collection 2 (C2) Level 2 (L2) Data Format Control Book (DFCB)

LSDS-1336 Version 4.0 Landsat Thematic Mapper (TM) Collection 2 (C2) Level 2 (L2) Data Format Control Book (DFCB)