Kindly tell about temperatures values extraction from Lansat 8 TIRS Sensor data
Dear
T10 temperature is Tradiative (band 10 and 11), but not the temperature of the surface (LST). For the temperature of the surface is necessary to apply a single channel or split window equation.
T_Brillo=K_2/ln[K_1/L_λsensor +1]
http://landsat.gsfc.nasa.gov/?p=5689
For LST with single channel equation aplied:
LST(B10L8)=(L_λsensor-L_(λ↑)-τ(1-ε) L_(λ↓))/τε
L_λsensor radiance sensor (energy unit)
L_(λ↑) radiance atmosphere up (energy unit)
L_(λ↓)) radiance atmosphere down (energy unit)
τ transmissivity (adimensional)
ε emissivity (adimensional)
(1) Barsi et al., (2003) on line model
TIRS Landsat 8 (2) Jiménez-Muñoz et al. (2014), good single-channel algorithm
(3) Pasapera y Rivas (2014) General description and aplication L8 TIRS (single and split window the problem is that it is written in Spanish)
Recommendation: read 1 and 2
TIRS band data can be converted from spectral radiance to brightness temperature using the thermal constants provided in the metadata file:
T=K2/Ln(1+K1/Lλ)
where:
T = At-satellite brightness temperature (K)
Lλ = TOA spectral radiance (Watts/( m2 * srad * μm))
K1 = Band-specific thermal conversion constant from the metadata (K1_CONSTANT_BAND_x, where x is the band number, 10 or 11)
K2 = Band-specific thermal conversion constant from the metadata (K2_CONSTANT_BAND_x, where x is the band number, 10 or 11)
http://www.gisagmaps.com/landsat-8-atco/
Here is a step-by-step description of the extraction procedure.
http://blogs.esri.com/esri/arcgis/2014/01/06/deriving-temperature-from-landsat-8-thermal-bands-tirs/
Dear
T10 temperature is Tradiative (band 10 and 11), but not the temperature of the surface (LST). For the temperature of the surface is necessary to apply a single channel or split window equation.
T_Brillo=K_2/ln[K_1/L_λsensor +1]
http://landsat.gsfc.nasa.gov/?p=5689
For LST with single channel equation aplied:
LST(B10L8)=(L_λsensor-L_(λ↑)-τ(1-ε) L_(λ↓))/τε
L_λsensor radiance sensor (energy unit)
L_(λ↑) radiance atmosphere up (energy unit)
L_(λ↓)) radiance atmosphere down (energy unit)
τ transmissivity (adimensional)
ε emissivity (adimensional)
(1) Barsi et al., (2003) on line model
TIRS Landsat 8 (2) Jiménez-Muñoz et al. (2014), good single-channel algorithm
(3) Pasapera y Rivas (2014) General description and aplication L8 TIRS (single and split window the problem is that it is written in Spanish)
Recommendation: read 1 and 2
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