Landsat Response Linearization Look Up Tables (RLUT) are additional files that accompany Calibration Parameter Files (CPFs) and contain a mapping lookup table to linearize the output of the Landsat 8 and Landsat 9 Operational Land Imager (OLI) detectors.
Learn more (and download RLUT files): Landsat Response Linearization Look Up Tables
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What is Landsat definitive ephemeris?
Definitive Ephemeris is used for geometrically correcting Landsat 7 data and providing improved accuracy over predicted ephemeris. Learn more (and download DE files): Landsat Definitive Ephemeris
What are Landsat Calibration Parameter Files?
Landsat Calibration Parameter Files (CPFs) provide radiometric and geometric coefficients needed for processing of raw, uncorrected Landsat image data into Level-1 data products. Over 15,000 coefficients are issued to span distinct timeframes and are updated with improved calibration coefficients. CPFs are often updated with improved coefficients. Learn more (and search CPF files): Landsat...
What are Landsat Bias Parameter Files?
Landsat Bias Parameter Files (BPFs) supply radiometric correction parameters that are applied during Level-1 processing of Landsat data.Learn more (and search for BPF files): Landsat Bias Parameter
What is the Landsat Collections Saturation Bits parameter?
The Landsat Collection 2 Level-1 product metadata (MTL.txt) file includes a SATURATION_BAND_ x parameter for each Landsat band. This field indicates the presence of radiometric saturation for each band in every Landsat scene. Learn more: Landsat Collections Level-1 Saturation Bits Parameter
What is the Landsat Collections Angle Coefficient file and how is it used?
Use the senor viewing angle model coefficients in the Landsat Collection 2 Angle Coefficient files to create angle bands and to compute the solar and senor viewing angles on a per-pixel basis. Learn more: Solar Illumination and Sensor Viewing Angle Coefficient Files
How is the percentage of cloud cover calculated in a Landsat scene?
The C Function of Mask (CFMask) algorithm is used in Landsat Collection 1 Level-1 data processing. This algorithm provides a full-image “Scene Cloud Cover” estimation of the percentage of cloud cover calculated over an entire Landsat scene. Land Cloud Cover, which is also included, is determined by calculating the percentage of clouds over land-only pixels in a scene using a mask that...
How do I rescale Landsat Level-1 digital numbers to reflectance, radiance, and brightness temperature?
Landsat Level-1 data can be rescaled to the top of atmosphere (TOA) reflectance and/or radiance using radiometric rescaling coefficients provided in the metadata file (MTL.txt) that is delivered with the Landsat Level-1 product. The MTL file also contains the thermal constants needed to convert thermal band data to TOA brightness temperature (BT). Formulas for these conversions are at Using the...
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What is Landsat definitive ephemeris?
Definitive Ephemeris is used for geometrically correcting Landsat 7 data and providing improved accuracy over predicted ephemeris. Learn more (and download DE files): Landsat Definitive Ephemeris
What are Landsat Calibration Parameter Files?
Landsat Calibration Parameter Files (CPFs) provide radiometric and geometric coefficients needed for processing of raw, uncorrected Landsat image data into Level-1 data products. Over 15,000 coefficients are issued to span distinct timeframes and are updated with improved calibration coefficients. CPFs are often updated with improved coefficients. Learn more (and search CPF files): Landsat...
What are Landsat Bias Parameter Files?
Landsat Bias Parameter Files (BPFs) supply radiometric correction parameters that are applied during Level-1 processing of Landsat data.Learn more (and search for BPF files): Landsat Bias Parameter
What is the Landsat Collections Saturation Bits parameter?
The Landsat Collection 2 Level-1 product metadata (MTL.txt) file includes a SATURATION_BAND_ x parameter for each Landsat band. This field indicates the presence of radiometric saturation for each band in every Landsat scene. Learn more: Landsat Collections Level-1 Saturation Bits Parameter
What is the Landsat Collections Angle Coefficient file and how is it used?
Use the senor viewing angle model coefficients in the Landsat Collection 2 Angle Coefficient files to create angle bands and to compute the solar and senor viewing angles on a per-pixel basis. Learn more: Solar Illumination and Sensor Viewing Angle Coefficient Files
How is the percentage of cloud cover calculated in a Landsat scene?
The C Function of Mask (CFMask) algorithm is used in Landsat Collection 1 Level-1 data processing. This algorithm provides a full-image “Scene Cloud Cover” estimation of the percentage of cloud cover calculated over an entire Landsat scene. Land Cloud Cover, which is also included, is determined by calculating the percentage of clouds over land-only pixels in a scene using a mask that...
How do I rescale Landsat Level-1 digital numbers to reflectance, radiance, and brightness temperature?
Landsat Level-1 data can be rescaled to the top of atmosphere (TOA) reflectance and/or radiance using radiometric rescaling coefficients provided in the metadata file (MTL.txt) that is delivered with the Landsat Level-1 product. The MTL file also contains the thermal constants needed to convert thermal band data to TOA brightness temperature (BT). Formulas for these conversions are at Using the...
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