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https://github.com/gclunies/noaa_coops
A Python wrapper for the NOAA CO-OPS Tides & Currents Data and Metadata APIs.
https://github.com/gclunies/noaa_coops
coops currents metocean noaa python sensors-data tides water-level weather-api
Last synced: 6 days ago
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A Python wrapper for the NOAA CO-OPS Tides & Currents Data and Metadata APIs.
- Host: GitHub
- URL: https://github.com/gclunies/noaa_coops
- Owner: GClunies
- License: apache-2.0
- Created: 2019-04-06T16:19:40.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-08-03T14:24:54.000Z (5 months ago)
- Last Synced: 2024-10-29T22:30:37.589Z (2 months ago)
- Topics: coops, currents, metocean, noaa, python, sensors-data, tides, water-level, weather-api
- Language: Python
- Homepage:
- Size: 278 KB
- Stars: 82
- Watchers: 5
- Forks: 28
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# noaa_coops
[](https://pypi.python.org/pypi/noaa-coops)
[](https://pypi.python.org/pypi/noaa-coops)
A Python wrapper for the NOAA CO-OPS Tides & Currents [Data](https://tidesandcurrents.noaa.gov/api/)
and [Metadata](https://tidesandcurrents.noaa.gov/mdapi/latest/) APIs.
## Installation
This package is distributed via [PyPi](https://pypi.org/project/noaa-coops/) and can be installed using , `pip`, `poetry`, etc.
```bash
# Install with pip
❯ pip install noaa_coops
# Install with poetry
❯ poetry add noaa_coops
```
## Getting Started
### Stations
Data is accessed via `Station` class objects. Each station is uniquely identified by an `id`. To initialize a `Station` object, run:
```python
>>> from noaa_coops import Station
>>> seattle = Station(id="9447130") # Create Station object for Seattle (ID = 9447130)
```
Stations and their IDs can be found using the Tides & Currents [mapping interface](https://tidesandcurrents.noaa.gov/). Alternatively, you can search for stations in a bounding box using the `get_stations_from_bbox` function, which will return a list of stations found in the box (if any).
```python
>>> from pprint import pprint
>>> from noaa_coops import Station, get_stations_from_bbox
>>> stations = get_stations_from_bbox(lat_coords=[40.389, 40.9397], lon_coords=[-74.4751, -73.7432])
>>> pprint(stations)
['8516945', '8518750', '8519483', '8531680']
>>> station_one = Station(id="8516945")
>>> pprint(station_one.name)
'Kings Point'
```
### Metadata
Station metadata is stored in the `.metadata` attribute of a `Station` object. Additionally, the keys of the metadata attribute dictionary are also assigned as attributes of the station object itself.
```python
>>> from pprint import pprint
>>> from noaa_coops import Station
>>> seattle = Station(id="9447130")
>>> pprint(list(seattle.metadata.items())[:5]) # Print first 3 items in metadata
[('tidal', True), ('greatlakes', False), ('shefcode', 'EBSW1')] # Metadata dictionary can be very long
>>> pprint(seattle.lat_lon['lat']) # Print latitude
47.601944
>>> pprint(seattle.lat_lon['lon']) # Print longitude
-122.339167
```
### Data Inventory
A description of a Station's data products and available dates can be accessed via the `.data_inventory` attribute of a `Station` object.
```python
>>> from noaa_coops import Station
>>> from pprint import pprint
>>> seattle = Station(id="9447130")
>>> pprint(seattle.data_inventory)
{'Air Temperature': {'end_date': '2019-01-02 18:36',
'start_date': '1991-11-09 01:00'},
'Barometric Pressure': {'end_date': '2019-01-02 18:36',
'start_date': '1991-11-09 00:00'},
'Preliminary 6-Minute Water Level': {'end_date': '2023-02-05 19:54',
'start_date': '2001-01-01 00:00'},
'Verified 6-Minute Water Level': {'end_date': '2022-12-31 23:54',
'start_date': '1995-06-01 00:00'},
'Verified High/Low Water Level': {'end_date': '2022-12-31 23:54',
'start_date': '1977-10-18 02:18'},
'Verified Hourly Height Water Level': {'end_date': '2022-12-31 23:00',
'start_date': '1899-01-01 00:00'},
'Verified Monthly Mean Water Level': {'end_date': '2022-12-31 23:54',
'start_date': '1898-12-01 00:00'},
'Water Temperature': {'end_date': '2019-01-02 18:36',
'start_date': '1991-11-09 00:00'},
'Wind': {'end_date': '2019-01-02 18:36', 'start_date': '1991-11-09 00:00'}}
```
### Data Retrieval
Available data products can be found in NOAA CO-OPS Data API docs.
Station data can be fetched using the `.get_data` method on a `Station` object. Data is returned as a Pandas [DataFrame](https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.html) for ease of use and analysis. DataFrame columns are named according to the NOAA CO-OPS API [docs](https://api.tidesandcurrents.noaa.gov/api/prod/responseHelp.html), with the `t` column (timestamp) set as the DataFrame index.
The example below fetches water level data from the Seattle station (id=9447130) for a 1 month period. The corresponding [web output](https://tidesandcurrents.noaa.gov/waterlevels.html?id=9447130&units=metric&bdate=20150101&edate=20150131&timezone=GMT&datum=MLLW) is shown below the code as a reference.
```python
>>> from noaa_coops import Station
>>> seattle = Station(id="9447130")
>>> df_water_levels = seattle.get_data(
... begin_date="20150101",
... end_date="20150131",
... product="water_level",
... datum="MLLW",
... units="metric",
... time_zone="gmt")
>>> df_water_levels.head()
v s f q
t
2015-01-01 00:00:00 1.799 0.023 0,0,0,0 v
2015-01-01 00:06:00 1.718 0.018 0,0,0,0 v
2015-01-01 00:12:00 1.639 0.013 0,0,0,0 v
2015-01-01 00:18:00 1.557 0.012 0,0,0,0 v
2015-01-01 00:24:00 1.473 0.014 0,0,0,0 v
```
## Development
### Requirements
This package and its dependencies are managed using [poetry](https://python-poetry.org/). To install the development environment for `noaa_coops`, first install poetry, then run (inside the repo):
```bash
poetry install
```
### TODO
Click [here](https://github.com/GClunies/noaa_coops/issues) for a list of existing issues and to submit a new one.
### Contribution
Contributions are welcome, feel free to submit a pull request.