hydromt.data_catalog.DataCatalog

class hydromt.data_catalog.DataCatalog(data_libs: List | str | None = None, fallback_lib: str | None = 'artifact_data', cache: bool | None = False, cache_dir: str | None = None)

Base class for the data catalog object.

Catalog of sources.

Helps to easily read from different files and keep track of files which have been accessed.

Parameters:

• data_libs ((list of) str, Path, optional) – One or more paths to data catalog configuration files or names of predefined data catalogs. By default the data catalog is initiated without data entries. See from_yml() for accepted yaml format.

• fallback_lib – Name of pre-defined data catalog to read if no data_libs are provided, by default ‘artifact_data’. If None, no default data catalog is used.

• cache (bool, optional) – Set to true to cache data locally before reading. Currently only implemented for tiled rasterdatasets, by default False.

• cache_dir (str, Path, optional) – Folder root path to cach data to, by default ~/.hydromt_data

• logger (logger object, optional) – The logger object used for logging messages. If not provided, the default logger will be used.

__init__(data_libs: List | str | None = None, fallback_lib: str | None = 'artifact_data', cache: bool | None = False, cache_dir: str | None = None) → None

Catalog of sources.

Helps to easily read from different files and keep track of files which have been accessed.

Parameters:

• data_libs ((list of) str, Path, optional) – One or more paths to data catalog configuration files or names of predefined data catalogs. By default the data catalog is initiated without data entries. See from_yml() for accepted yaml format.

• fallback_lib – Name of pre-defined data catalog to read if no data_libs are provided, by default ‘artifact_data’. If None, no default data catalog is used.

• cache (bool, optional) – Set to true to cache data locally before reading. Currently only implemented for tiled rasterdatasets, by default False.

• cache_dir (str, Path, optional) – Folder root path to cach data to, by default ~/.hydromt_data

• logger (logger object, optional) – The logger object used for logging messages. If not provided, the default logger will be used.

Methods

__init__([data_libs, fallback_lib, cache, ...])	Catalog of sources.
add_source(name, source)	Add a new data source to the data catalog.
contains_source(source[, provider, version, ...])	Check if source is in catalog.
export_data(new_root[, bbox, time_range, ...])	Export a data slice of each dataset and a data_catalog.yml file to disk.
from_dict(data_dict[, catalog_name, ...])	Add data sources based on dictionary.
from_predefined_catalogs(name[, version])	Add data sources from a predefined data catalog.
from_stac_catalog(stac_like[, handle_nodata])	Write data catalog to STAC format.
from_yml(urlpath[, root, catalog_name, ...])	Add data sources based on yaml file.
get_dataframe(data_like[, variables, ...])	Return a clipped, sliced and unified DataFrame.
get_dataset(data_like[, variables, ...])	Return a clipped, sliced and unified Dataset.
get_geodataframe(data_like[, bbox, geom, ...])	Return a clipped and unified GeoDataFrame (vector).
get_geodataset(data_like[, bbox, geom, ...])	Return a clipped, sliced and unified GeoDataset.
get_rasterdataset(data_like[, bbox, geom, ...])	Return a clipped, sliced and unified RasterDataset.
get_source(source[, provider, version])	Return a data source.
get_source_bbox(source[, provider, version, ...])	Retrieve the bounding box and crs of the source.
get_source_names()	Return a list of all available data source names.
get_source_time_range(source[, provider, ...])	Detect the temporal range of the dataset.
list_sources([used_only])	Return a flat list of all available data sources.
to_dict([source_names, root, meta, used_only])	Export the data catalog to a dictionary.
to_stac_catalog(root[, source_names, meta, ...])	Write data catalog to STAC format.
to_yml(path[, root, source_names, ...])	Write data catalog to yaml format.
update(**kwargs)	Add data sources to library or update them.
update_sources(**kwargs)	Add data sources to library or update them.

Attributes

predefined_catalogs	Return all predefined catalogs.
sources	Returns dictionary of DataSources.