Atmospheric Parameter Setting -

[lucia.m...@gmail.com]

Dear Robin,

I use Py6S to perform atmospheric correction of LANDSAT 8 data.

I Automatically pick the atmospheric profile based on the latitude and date info 

using the classmethodFromLatitudeAndDate(latitude, date) of the classPy6S.AtmosProfile.

Is it possible to overwrite the water and ozone content of the atmospheric profile 

fixed via theclassmethodFromLatitudeAndDate(latitude, date)

with the classmethodUserWaterAndOzone(water, ozone)?

I mean, if I write

from Py6S import *
s = SixS()

s.atmos_profile = AtmosProfile.FromLatitudeAndDate(latitude, date)

s.atmos_profile = AtmosProfile.UserWaterAndOzone(3.6, 0.9) 

s.run()

How this code is managed by 6S? 

Thank you in advance

Maria Lucia

[Robin Wilson]

Hi,

Unfortunately this isn't possible - 6S only allows specification of either a standard atmospheric profile (such as Midlatitude Summer, Tropical and so on - these are automatically picked by FromLatitudeAndDate) or a user-defined water vapour and ozone content, in which case the US Standard Atmosphere (1962), known as US62, is used and modified to take into account the values you've specified.

Sadly there's nothing I can easily do about this - as it is a limitation in 6S itself rather than Py6S.

Cheers,

Robin

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[Akinnusi Samuel]

Maria, can you pls assist me with how you went about the construction of the look up table for Landsat 8. Thanks my email is Akinnusis...@gmail.com