DiluviumDEM is a global coastal digital elevation model based on the CopernicusDEM (30m) but corrected up to 80 meters in elevation using a LightGBM model. The code to generate DiluviumDEM is published in this repository. DiluviumDEM can be downloaded at: https://doi.org/10.5281/zenodo.8329293 or as an Earth Engine asset here: https://code.earthengine.google.com/?asset=users/ddusseau/DiluviumDEM

The methodology used to create DiluviumDEM is described in DiluviumDEM: Enhanced accuracy in global coastal digital elevation models.

train_data_earthengine_export_DiluviumDEMv2.py: Script to export training data from Google Earth Engine.

preprocess_data_DiluviumDEMv2.py: Script to convert exported GeoTiff files into TFRecords.

LightGBM_train_DiluviumDEMv2.py: Script to train LightGBM model.

model.txt: LightGBM model used to predict CopernicusDEM error.

predict_data_earthengine_export_DiluviumDEMv2.py: Script to export global prediction data from Google Earth Engine.

LightGBM_predict_DiluviumDEMv2.py: Script to predict CopernicusDEM error using model.txt.