earth2studio.data.IFS_ENS_FX

class earth2studio.data.IFS_ENS_FX(source='aws', member=0, cache=True, verbose=True, async_timeout=600)

Integrated forecast system (IFS) ensemble (ENS) forecast data source on an equirectangular grid at 0.25 degree resolution. IFS is a forecast model developed by ECMWF. Data for the most recent 4 days can be retrieved from ECMWF’s servers (source ecmwf). Historical data is part of ECMWF’s open data project on AWS (source aws).

Parameters:

• source (str, optional) – Data source to fetch data from. For possible options refer to ECMWF’s open data Python SDK, by default “aws”.

• member (int, optional) – Ensemble member id to use. If 0 the control forecast will be requested, if greater than 0 perturbed ensemble member will be requested, by default 0.

• cache (bool, optional) – Cache data source in local memory, by default True.

• verbose (bool, optional) – Print download progress, by default True.

• async_timeout (int, optional) – Time in seconds after which the download will be cancelled if not finished successfully, by default 600.

Warning

This is a remote data source and can potentially download a large amount of data to your local machine for large requests.

Note

Additional information on the data repository can be referenced here:

• ecmwf/ecmwf-opendata

• https://confluence.ecmwf.int/display/DAC/ECMWF+open+data%3A+real-time+forecasts

• https://registry.opendata.aws/ecmwf-forecasts/

• https://console.cloud.google.com/storage/browser/ecmwf-open-data/

__call__(time, lead_time, variable)

Retrieve IFS ENS forecast data.

Parameters:

• time (datetime | list[datetime] | TimeArray) – Timestamps to return data for (UTC).

• lead_time (timedelta | list[timedelta] | LeadTimeArray) – Forecast lead times to fetch.

• variable (str | list[str] | VariableArray) – String, list of strings or array of strings that refer to variables to return. Must be in the data lexicon.

Returns:

IFS ENS forecast data array

Return type:

xr.DataArray

async fetch(time, lead_time, variable)

Async function to get data.

Parameters:

• time (datetime | list[datetime] | TimeArray) – Timestamps to return data for (UTC).

• lead_time (timedelta | list[timedelta] | LeadTimeArray) – Forecast lead times to fetch.

• variable (str | list[str] | VariableArray) – String, list of strings or array of strings that refer to variables to return. Must be in the data lexicon.

Returns:

IFS ENS forecast data array.

Return type:

xr.DataArray