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[ 源代码： xarray-eopf ]
软件包：python3-xarray-eopf（0.2.7-2）
EOPF Zarr backend for xarray
An xarray backend implementation for ESA EOPF data products in Zarr format.
After installing this package, user can specify a new xarray backend named `"eopf-zarr"` to open EOPF sample products. The backend has two modes of operation, default analysis mode and the native mode. Both modes allow
* to open EOPF sample products from the local filesystem or from their original object storage using URLs with both `https` or `s3` protocols; * to open entire products as `xarray.DataTree` or `xarray.Dataset`; * to open a subgroup as `xarray.Dataset`. This works with local filesystem or `s3`-URLs.
The default analysis mode has the aim to represent the EOPF data products in an analysis-ready and convenient way. It provides the following features:
* Open the deeply nested EOPF products as flat `xarray.Dataset` objects. * All bands and quality images resampled to a single, user provided resolution, hence, spatial dimensions will be just `x` and `y`. * User-specified resampling by passing interpolation methods for up-scaling and aggregation methods for downscaling. * CF-compliant spatial referencing of datasets using a shared grid mapping variable `spatial_ref`. * Attach other CF-compliant metadata enhancements such as flag values and meanings for pixel quality information, such as the Sentinel-2 scene classification (variable `scl`).
The native mode does not modify any contents or data, instead it basically delegates to the built-in `zarr` backend.
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