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Make the bounding box for biomass data smaller #23

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Make the bounding box for biomass data smaller #23

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16 changes: 10 additions & 6 deletions src/climatebenchpress/data_loader/datasets/esa_biomass_cci.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@

# Define rough bounding box coordinates for mainland France.
# Format: [min_longitude, min_latitude, max_longitude, max_latitude].
FRANCE_BBOX = [-5.5, 42.3, 9.6, 51.1]
FRANCE_BBOX = [-2.5, 42.3, 8.6, 49.1]

# Biomass estimate for the year 2020.
BIOMASS_URL = "https://dap.ceda.ac.uk/neodc/esacci/biomass/data/agb/maps/v5.01/netcdf/ESACCI-BIOMASS-L4-AGB-MERGED-100m-2020-fv5.01.nc"
Expand Down Expand Up @@ -47,11 +47,15 @@ def open(download_path: Path) -> xr.Dataset:
# The global snapshot would be around 20 GB, which is too large for our use case.
# We chose France because it should have a fairly diverse set of biomass estimates
# but the choice is overall somewhat arbitrary.
ds = ds.sel(
lon=slice(FRANCE_BBOX[0], FRANCE_BBOX[2]),
lat=slice(FRANCE_BBOX[3], FRANCE_BBOX[1]),
).chunk(-1)
return ds[["agb"]]
ds = (
ds[["agb"]]
.sel(
lon=slice(FRANCE_BBOX[0], FRANCE_BBOX[2]),
lat=slice(FRANCE_BBOX[3], FRANCE_BBOX[1]),
)
.chunk(-1)
)
return ds


if __name__ == "__main__":
Expand Down