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r-earthengine / ee_extra

A ninja python package that unifies the Google Earth Engine ecosystem.
https://ee-extra.readthedocs.io/
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Add Landsat 8/9 tasseled cap coefficients #42

Closed aazuspan closed 2 years ago

aazuspan commented 2 years ago

Tasseled cap coefficients for Landsat 8/9 TOA and SR data were recently published by Zhai et al. We already have Landsat 8 coefficients from Baig et al, so I'll need to do some reading to see which to include...

davemlz commented 2 years ago

Hey @aazuspan!

That's nice! :rocket: For L9 the coefs should be the same as L8, right?

PD: I also added L9 for the remaining features, like spectralIndices and maskClouds. However, Landsat 9 is not yet included in the GEE STAC (I don't know why) and the tests are broken. I will remove L9 from the tests for now and when L9 is added I'll also do it :)

Best,

David

aazuspan commented 2 years ago

Hey @davemlz, yep, the L8 coeffs should work for L9, at least until something gets published specifically based on L9 data :)

Thanks for the heads up on the STAC issue! I'll make sure to disable the L9 tasseled cap tests if I make a PR before that's added.

Can't wait to have all the features up and running for L9!

davemlz commented 2 years ago

Hey @aazuspan, just to let you know that L9 is now in the STAC! :rocket:

aazuspan commented 2 years ago

Awesome, thanks @davemlz! PR incoming :)