podpac.datalib.SMAP¶

class podpac.datalib.SMAP(**kwargs)[source]¶

Bases: podpac.datalib.smap.SMAPSessionMixin, podpac.core.node.DiskCacheMixin, podpac.datalib.smap.SMAPCompositor

Compositor of all the SMAPDateFolder’s for every available SMAP date. Essentially a compositor of all SMAP data for a particular product.

base_url¶

Url to nsidc openDAP server

Type: str

date_url_re¶

Regular expression used to extract all folder dates (or folder names) for the particular SMAP product.

Type: SRE_Pattern

layer_key¶

Key used to retrieve data from OpenDAP dataset. This specifies the key used to retrieve the data

Type: str

product¶

SMAP product name

Type: str

Alternative Constructors

`from_definition`(definition)	Create podpac Node from a dictionary definition.
`from_json`(s)	Create podpac Node from a JSON definition.

Methods

`__init__`(**kwargs)	Do not overwrite me
`composite`(coordinates, data_arrays[, result])	Composites data_arrays in order that they appear.
`create_output_array`(coords[, data])	Initialize an output data array
`eval`(coordinates[, output])	Evaluates this nodes using the supplied coordinates.
`eval_group`(group)	Evaluate the node for each of the coordinates in the group.
`find_coordinates`()	The coordinates of the data source.
`from_url`(url)	Create podpac Node from a WMS/WCS request.
`get_cache`(key[, coordinates])	Get cached data for this node.
`get_filename_coordinates_sources`([bounds, …])	Returns coordinates solely based on the filenames of the sources.
`has_cache`(key[, coordinates])	Check for cached data for this node.
`init`()	Overwrite this method if a node needs to do any additional initialization after the standard initialization.
`iteroutputs`(coordinates)	Summary
`load`(path)	Create podpac Node from file.
`put_cache`(data, key[, coordinates, overwrite])	Cache data for this node.
`rem_cache`(key[, coordinates, mode])	Clear cached data for this node.
`save`(path)	Write node to file.
`select_sources`(coordinates)	Select sources based on requested coordinates, including setting coordinates, if possible.
`set_credentials`([username, password])	Shortcut to `podpac.authentication.set_crendentials()` using class member `self.hostname` for the hostname
`trait_is_defined`(name)

Attributes

`attrs`	List of node attributes
`auth_required`
`auto_outputs`	A boolean (True, False) trait.
`available_dates`
`base_ref`	Summary
`base_url`	A trait for unicode strings.
`cache_ctrl`	A trait whose value must be an instance of a specified class.
`cache_output`	A boolean (True, False) trait.
`date_url_re`
`definition`
`dims`	An instance of a Python list.
`dtype`	A trait which allows any value.
`force_eval`	A boolean (True, False) trait.
`hash`
`hostname`
`interpolation`
`is_source_coordinates_complete`	A boolean (True, False) trait.
`json`
`json_pretty`
`keys`	Available layers that are in the OpenDAP dataset
`layer_key`	A trait for unicode strings.
`output`	A trait for unicode strings.
`outputs`	An instance of a Python list.
`password`	Returns password stored in settings for accessing self.hostname.
`product`	An enum whose value must be in a given sequence.
`product_url`
`session`
`shared_coordinates`	A trait whose value must be an instance of a specified class.
`source_coordinates`
`sources`
`style`	A trait whose value must be an instance of a specified class.
`units`	A trait for unicode strings.
`username`	Returns username stored in settings for accessing self.hostname.
`version`	An int trait.

Members

__init__(**kwargs)¶: Do not overwrite me

property available_dates¶

property base_ref¶

Summary

Returns: Description
Return type: TYPE

base_url: A trait for unicode strings.

date_url_re = re.compile('[0-9]{4}\\.[0-9]{2}\\.[0-9]{2}')

find_coordinates()[source]¶

The coordinates of the data source.

Notes

These coordinates are computed, assuming dataset is regular.

get_filename_coordinates_sources(bounds=None, update_cache=False)[source]¶

Returns coordinates solely based on the filenames of the sources. This function was motivated by the SMAP-Sentinel product, which does not have regularly stored tiles (in space and time).

Parameters

bounds (podpac.Coordinates, Optional) – Default is None. Return the coordinates based on filenames of the source only within the specified bounds. When not None, the result is not cached.
update_cache (bool, optional) – Default is False. The results of this call are automatically cached to disk. This function will try to update the cache if new data arrives. Only set this flag to True to rebuild_auth the entire index locally (which may be needed when version numbers in the filenames change).

Returns

podpac.Coordinates – Coordinates of all the sources in the product family
Container – Container that will generate an array of the SMAPSources pointing to unique OpenDAP urls corresponding to the returned coordinates

Notes

The outputs of this function can be used to find source that overlap spatially or temporally with a subset region specified by the user.

If ‘bounds’ is not specified, the result is cached for faster future access after the first invocation.

This call uses NASA’s Common Metadata Repository (CMR) and requires an internet connection.

property keys¶

Available layers that are in the OpenDAP dataset

Returns: The list of available keys from the OpenDAP dataset. Any of these keys can be set as self.data_key.
Return type: List

Notes

This function assumes that all of the keys in the available dataset are the same for every file.

layer_key: A trait for unicode strings.

product: An enum whose value must be in a given sequence.

property source_coordinates¶

property sources¶

version¶: An int trait.