Performing Atmospheric Correction on Sentinel-2 TOA Imagery Using geemap

[harryseely]

Greetings,

I am interested in using Sentinel-2 imagery from 2015 onward, but the GEE dataset for surface reflectance only goes back to 2017. The top of atmosphere S2 dataset on GEE does go back to 2015, but I need to perform atmospheric correction. I am able to perform atmospheric correction to the imagery with the classic GEE using the SAIC method. In GEE I can import the required functions to use SIAC with the following code:

var siac = require('users/marcyinfeng/utils:SIAC'); function apply_siac(image) { return siac.get_sur(image); }

You can find the complete GEE script below here.

How might I transfer this SIAC approach to geemap so I can download the imagery in chunks directly to my drive?

I am not bound to using SIAC. I am open to other methods if anyone has suggestions!

Thanks,

Harry

[giswqs]

Run the code in JavaScript and export the image as an asset to your account. Then you can use geemap to download image tiles.

[harryseely]

Amazing thank you so much! I will give it a try