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https://github.com/intake/intake-esm
An intake plugin for parsing an Earth System Model (ESM) catalog and loading assets into xarray datasets.
https://github.com/intake/intake-esm
cesm-lens climate-datasets cmip6 data-access data-catalog earth-system-model hacktoberfest intake pangeo
Last synced: 3 months ago
JSON representation
An intake plugin for parsing an Earth System Model (ESM) catalog and loading assets into xarray datasets.
- Host: GitHub
- URL: https://github.com/intake/intake-esm
- Owner: intake
- License: apache-2.0
- Created: 2018-12-31T16:42:54.000Z (almost 6 years ago)
- Default Branch: main
- Last Pushed: 2024-06-04T18:17:14.000Z (5 months ago)
- Last Synced: 2024-06-11T16:52:45.837Z (5 months ago)
- Topics: cesm-lens, climate-datasets, cmip6, data-access, data-catalog, earth-system-model, hacktoberfest, intake, pangeo
- Language: Python
- Homepage: https://intake-esm.readthedocs.io
- Size: 11.7 MB
- Stars: 130
- Watchers: 14
- Forks: 41
- Open Issues: 32
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
- open-sustainable-technology - Intake-esm - An intake plugin for parsing an Earth System Model catalog and loading assets into xarray datasets. (Climate Change / Climate Data Access and Visualization)
README
# Intake-esm
- [Intake-esm](#intake-esm)
- [Badges](#badges)
- [Motivation](#motivation)
- [Overview](#overview)
- [Installation](#installation)
## Badges
| CI | [![GitHub Workflow Status][github-ci-badge]][github-ci-link] [![Code Coverage Status][codecov-badge]][codecov-link] [![pre-commit.ci status][pre-commit.ci-badge]][pre-commit.ci-link] |
| :----------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
| **Docs** | [![Documentation Status][rtd-badge]][rtd-link] |
| **Package** | [![Conda][conda-badge]][conda-link] [![PyPI][pypi-badge]][pypi-link] |
| **License** | [![License][license-badge]][repo-link] |
| **Citation** | [![Zenodo][zenodo-badge]][zenodo-link] |
## Motivation
Computer simulations of the Earth’s climate and weather generate huge amounts of data.
These data are often persisted on HPC systems or in the cloud across multiple data
assets of a variety of formats ([netCDF](https://www.unidata.ucar.edu/software/netcdf/), [zarr](https://zarr.readthedocs.io/en/stable/), etc...). Finding, investigating,
loading these data assets into compute-ready data containers costs time and effort.
The data user needs to know what data sets are available, the attributes describing
each data set, before loading a specific data set and analyzing it.
Finding, investigating, loading these assets into data array containers
such as xarray can be a daunting task due to the large number of files
a user may be interested in. Intake-esm aims to address these issues by
providing necessary functionality for searching, discovering, data access/loading.
## Overview
`intake-esm` is a data cataloging utility built on top of [intake](https://github.com/intake/intake), [pandas](https://pandas.pydata.org/), and [xarray](https://xarray.pydata.org/en/stable/), and it's pretty awesome!
- Opening an ESM catalog definition file: An Earth System Model (ESM) catalog file is a JSON file that conforms
to the [ESM Collection Specification](./docs/source/reference/esm-catalog-spec.md). When provided a link/path to an esm catalog file, `intake-esm` establishes
a link to a database (CSV file) that contains data assets locations and associated metadata
(i.e., which experiment, model, the come from). The catalog JSON file can be stored on a local filesystem
or can be hosted on a remote server.
```python
In [1]: import intake
In [2]: import intake_esm
In [3]: cat_url = intake_esm.tutorial.get_url("google_cmip6")
In [4]: cat = intake.open_esm_datastore(cat_url)
In [5]: cat
Out[5]:
```
- Search and Discovery: `intake-esm` provides functionality to execute queries against the catalog:
```python
In [5]: cat_subset = cat.search(
...: experiment_id=["historical", "ssp585"],
...: table_id="Oyr",
...: variable_id="o2",
...: grid_label="gn",
...: )
In [6]: cat_subset
Out[6]:
```
- Access: when the user is satisfied with the results of their query, they can load data assets (netCDF and/or Zarr stores) into xarray datasets:
```python
In [7]: dset_dict = cat_subset.to_dataset_dict()
--> The keys in the returned dictionary of datasets are constructed as follows:
'activity_id.institution_id.source_id.experiment_id.table_id.grid_label'
|███████████████████████████████████████████████████████████████| 100.00% [2/2 00:18<00:00]
```
See [documentation](https://intake-esm.readthedocs.io/en/latest/) for more information.
## Installation
Intake-esm can be installed from PyPI with pip:
```bash
python -m pip install intake-esm
```
It is also available from `conda-forge` for conda installations:
```bash
conda install -c conda-forge intake-esm
```
[github-ci-badge]: https://github.com/intake/intake-esm/actions/workflows/ci.yaml/badge.svg
[github-ci-link]: https://github.com/intake/intake-esm/actions/workflows/ci.yaml
[codecov-badge]: https://img.shields.io/codecov/c/github/intake/intake-esm.svg?logo=codecov
[codecov-link]: https://codecov.io/gh/intake/intake-esm
[rtd-badge]: https://readthedocs.org/projects/intake-esm/badge/?version=latest
[rtd-link]: https://intake-esm.readthedocs.io/en/latest/?badge=latest
[pypi-badge]: https://img.shields.io/pypi/v/intake-esm?logo=pypi
[pypi-link]: https://pypi.org/project/intake-esm
[conda-badge]: https://img.shields.io/conda/vn/conda-forge/intake-esm?logo=anaconda
[conda-link]: https://anaconda.org/conda-forge/intake-esm
[zenodo-badge]: https://img.shields.io/badge/DOI-10.5281%20%2F%20zenodo.3491062-blue.svg
[zenodo-link]: https://doi.org/10.5281/zenodo.3491062
[license-badge]: https://img.shields.io/github/license/intake/intake-esm
[repo-link]: https://github.com/intake/intake-esm
[pre-commit.ci-badge]: https://results.pre-commit.ci/badge/github/intake/intake-esm/main.svg
[pre-commit.ci-link]: https://results.pre-commit.ci/latest/github/intake/intake-esm/main