azavea / noaa-flood-mapping

NOAA Flood Inundation Mapping
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Prepare Monthly JRC for Training #77

Closed jamesmcclain closed 4 years ago

jamesmcclain commented 4 years ago

Consider training a model on a large area using monthly JRC matched to Sentinel-1 scenes and fine-tuning to floods.

To amplify: the motivation here is to take advantage of the fact that the intersection of monthly JRC and Sentinel-1 is so much larger than any of the flood datasets that we have found so far. Training a model to recognize water on these more plentiful data, then fine-tuning for floods seems like a promising path.

moradology commented 4 years ago

After trying and failing to export the global JRC dataset from GEE (the only place where it is currently available), I've found success exporting a subset of the data for the Mississippi river and its environs. This should be sufficient for estimating the efficacy of using JRC as training data. This data lives at s3://global-surface-water/monthly/mississippi-river