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)

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