To apply MCSST algorithm for retrieving sea surface temperature data from Landsat 8 I need a 'sensor zenith angle' value. Unfortunately in the Landsat 8 metadata file (.MTL) only available sun azimuth angle and sun elevation angle?
So, where I can get the sensor zenith angle of Landsat 8 data?
zenith angles are not currently provided with the Landsat 8 products.
http://www.scielo.br/pdf/rbeaa/v20n1/1415-4366-rbeaa-20-01-0003.pdf
I agree with you, and where I can get the sensor zenith angle of Landsat 8 data? Maybe there is equation to calculate this value?
Along the central line (South-North) of the image, you can assume a sensor zenith angle = 0. In the West and East edge, the maximum angle can be calculated using the width of image and the sensor height. Then per-pixel angles can be derived via interpolation. For Landsat ETM+, the maximum angle is ~7.5°.
Landsat 8 has a near NADIR view. Hence, the sensor zenith angle is round zero. There is information in the MTL file about camera ROLL_ANGLE = -0.001 ~ 0
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