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Aerosol Optical Thickness (AOT)

 

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Aerosol Optical Thickness (AOT)

 

─ Comparison between esimated AOT & Level 1.5 (cloud screened) AERONET data:

  ① Interpolate AERONET measurements at λ=550 nm using the Angstrom Exponent

  ② Average AERONET values over time period of +/- 15min  from AOT retrieved values (L-8/S-2 overpass)

  ③ Average AOT estimates over an image subset of 9 km x 9 km centred on the AERONET Sunphotometer station

 

─ Plots per AC processor & site, including cloudy and cloudless cases

Plots of the estimated versus the AERONET AOT values grouped in cloudy (5%<cloudiness<65%) and cloudless (cloudiness<5%) cases. The cloudiness here refers to the whole image scene and NOT to the image subset of 9 km x 9 km and it was resulted by the participants' quality masks.