pantierra/efast-phenocam-validation
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This commit is contained in:
Felix Delattre 2025-12-17 11:21:17 +01:00
parent 4c0bc59480
commit 99a8686d52
2 changed files with 64 additions and 44 deletions
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11
download_s3.py
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@ -59,6 +59,7 @@ times = netCDF4.num2date(nc.variables['t'][:], nc.variables['t'].units)
x_coords = nc.variables['x'][:]
y_coords = nc.variables['y'][:]
band_vars = sorted([v for v in nc.variables.keys() if v.startswith('B') and v[1:].isdigit()])
band_names = [list(bands.keys())[openeo_bands.index(b)] for b in band_vars]
transform = from_bounds(
float(x_coords.min()), float(y_coords.min()),
@ -66,13 +67,17 @@ transform = from_bounds(
len(x_coords), len(y_coords)
)
date_counts = {}
for t_idx, time_val in enumerate(times):
date_str = time_val.strftime("%Y%m%dT%H%M%S") if isinstance(time_val, datetime) else netCDF4.num2date(nc.variables['t'][t_idx], nc.variables['t'].units).strftime("%Y%m%dT%H%M%S")
dt = time_val if isinstance(time_val, datetime) else netCDF4.num2date(nc.variables['t'][t_idx], nc.variables['t'].units)
date_str = dt.strftime("%Y%m%d")
increment = date_counts.get(date_str, 0)
date_counts[date_str] = increment + 1
band_data = [nc.variables[b][t_idx, :, :] for b in band_vars]
stacked = np.stack(band_data, axis=0)
output_path = output_dir / f"S3_OLCI__{date_str}.tif"
output_path = output_dir / f"{date_str}_{increment}.geotiff"
with rasterio.open(
output_path, 'w',
driver='GTiff', height=len(y_coords), width=len(x_coords),
@ -80,6 +85,8 @@ for t_idx, time_val in enumerate(times):
transform=transform, compress='lzw'
) as dst:
dst.write(stacked)
for i, band_name in enumerate(band_names, 1):
dst.set_band_description(i, band_name)
print(f"Saved: {output_path}")
nc.close()