2021-11-15 PyAerocom Meeting

[avaldebe]

O3max/O3mean problem

It is not possible to analyze daily O3max and O3mean on the same script. This is an old problem. Different work around have been previously implemented
Daniel talks about his attempt to solve this problem.
Daniel and Hans will open an issue describing the problem

EMEP multiple years

PR #451 has made some progress…
The EMEP reader can now read multiple years and calculate trends. This feature is still in alpha, as there are still bugs (e.g. pre-2016 don't seem to work, and gives the error that stations are more than 0.1 km apart)

The web interface has a hard time plotting trends using daily data, for some reason

Check this python modules

Augustin shows some cool things from the eScience workshop

https://nordicesmhub.github.io/forces-2021/setup/data.html

Notebooks examples using s3fs:

• https://github.com/NordicESMhub/forces-2021/blob/Group7/notebooks/Gr07_Augustin/marte_forces.ipynb
• https://github.com/NordicESMhub/forces-2021/blob/Group7/notebooks/Gr07_Augustin/MODIS_calculate_yearly_mean_Joakim.ipynb

Magnus and Charlie will write a bit about S3 file systems at met.no

Some software testing theory

Álvaro talks about test structure and prioritization strategies

Given-When-Then test structure

AKA, Arrange-Act-Assert

• Given/Arrange: pre-test/setup, most commonly as implemented as a fixture
• When/Act: trigger the behaviour we want to test
• Then/Assert: assert on the expected behaviour

Test & Code - 10: Test Case Design using Given-When-Then from BDD

Example, write tests for pyaerocom._lowlevel_helpers.str_underline

RCRCRC mnemonic for test prioritization

• Recent: new functionality, new modules
• Core: the main reason to use pyaerocom
• Risk: important functionality not commonly used by the developers
• Configuration sensitive: dependant on config files, environment variables, os dependant
• Repaired: reproduce bugs, recently fixed bugs
• Chronic: code that breaks frequently

Test & Code: 38 - Prioritize software tests with RCRCRC