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MarcYin / SIAC

A sensor invariant Atmospheric Correction (SIAC)
http://www2.geog.ucl.ac.uk/~ucfafyi/Atmo_Cor/
GNU Affero General Public License v3.0
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Does this work for Worldview? #10

Closed ashnair1 closed 3 years ago

ashnair1 commented 3 years ago

The README talks about Sentinel 2 and Landsat 8. I was wondering whether SIAC supports other sensors like Worldview?

MarcYin commented 3 years ago

Hi, it currently dose not support Worldview, but it can be added by training emulators for Worldview relative spectral response functions.

ashnair1 commented 3 years ago

Thanks for your reply. How can we train a Worldview emulator?

MarcYin commented 3 years ago

So you will need to have the worldview bands' relative spectral response function, then pass it into 6S to get xa, xbp, xcp (6S output) parameters with large number of combinations of different atmospheric condition. The input parameters are: cos(sza), cos(vza), cos(raa), aot (550nm), tcwv(g/cm^2), tco3(cm-atm) and elevation(km). Then you can use: https://github.com/MarcYin/Two_NN to train the emulators with the inputs and output parameters for each band to get the emulators.

ashnair1 commented 3 years ago

Understood. Thanks.