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I will try a smaller offset (+ 0.03) and then see the results. I agree with you that AOT is not always the same.

Regards
Asim

For the matchups we have, it looks like a reasonable value. What do you suggest? An offset of (0.05) sometimes overcorrects and produces negative results. In some cases, the estimated AOT is too low (0.07) and highly underestimates Rrs. I have also tried ICOR. It fails to estimate AOT from all the s...

Hi, Yes, I have applied fixed AOT= 0.15 to all scenes. I processed the scene two times. First run: aerosol_correction=dark_spectrum dsf_path_reflectance=tiled / fixed dsf_write_aot_550 = True The Rrs data was overestimated on the first run. The estimated AOT from the first run was 0.07 to 0.14 for a...

Hi, Using DSF (tiled), I have got: S2A_MSIL1C_20210626T130711_N0300_R081_T33XWH_20210626T151136.SAFE AOT 0.08 to 0.09 (for different matchup locations) S2B_MSIL1C_20210621T112629_N0300_R080_T33XXF_20210621T121350.SAFE AOT 0.08 to 0.14 S2B_MSIL1C_20210825T103619_N0301_R008_T33WYV_20210825T130130.SAFE...

Hi,

I have optimized AOT based on the in-situ data. I think it is not generally applicable as the AOT is optimized for the study area only.

Regards
Asim

Hi, Running AcoIite in default settings highly overestimated the Rrs values in all the bands of MSI and OLI (collected over the Barents Sea). The MAPE range from 19 to 65%. Following your suggestion, I have used a fixed AOT value (higher than the estimated one) for all the matchup scenes. The result...

Hi,

I processed the below scene using the DSF method. 99% of the pixels are flagged as 1. Could you please process this scene?

S2A_MSIL1C_20160625T181922_N0204_R127_T11SQU_20160625T183400.SAFE

Regards
Asim

Thanks! Can you please elaborate on why Rrs is not corrected for bidirectional effects?

Regards
Asim

Hi,

Does Acolite DSF (python version) correct for BRDF?

Regards
Asim

I have now applied the same settings file as before but getting NaN values. I was not getting NaN values using the previous python version. Your help will be highly appreciated. Please note that not on all the scenes I am getting NaN values. My setting file is : ## ACOLITE settings ## Written at 202...