Enable dataset: ERA5 forecast
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- Dominant language
- Python
- Stars
- 402
- Forks
- 134
- PR merge metrics
- No merged PRs in 30d
Description
Detailed Description
Request to enable retrieving data from the ERA5 forecast stream (in addition to the ERA5 analysis stream currently implemented)
Context
At the moment the ERA5 data used is from the ERA5 analysis stream.
This dataset has known issues for wind speeds at 09:00-10:00 UTC and 22:00-23:00 UTC.
See e.g. fig. 3 in Jourdier (2020) and the recent discussion in the openmod list.
CDS (which we use for ERA5) provides only forecast values if a parameter is not available from the analysis product (wind speeds are available from analysis). As such we would need to access MARS rather than CDS for the forecast data (stream=fc).
For more information and starting queues see this message from Matteo De Felice:
https://groups.google.com/g/openmod-initiative/c/FV61CWUY1L8/m/sq-ei5oIAwAJ
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no files, tests, or entry points. Start by locating the existing ERA5 analysis retrieval and review the linked MARS forecast documentation and starting queues. Done means the package can retrieve ERA5 forecast data in addition to the existing analysis stream.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100