Lars Bärring

POC: Handle std names and aliases (#5257)

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## 🚀 Pull Request ### Description This is a "proof-of-concept" PR to address how to better handle standard name aliases. It consists of the following elements: * Reorganising the iris.std_names.py...

## 🐛 Bug Report By incidence I noticed that various "strange" datetimes are accepted: ```python from cf_units import Unit unit_str = [ ("days since 1582-1010", "standard", "Error: generally malformed"), ("days...

GriB file with constant field (all values = 0) throws an error

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We have a file where all data is 0. This is encoded as a bitmap in section 6, while section 7 is empty. When reading this into iris we get...

CF global attribute "Conventions": expose to users, and include CF standard name table version

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## ✨ Feature Request Currently, the global attribute `Conventions` is difficult to change. The default is hardcoded deep in the code: https://github.com/SciTools/iris/blob/021d6ff7f719c600a189cfa5671bf32d20f66853/lib/iris/fileformats/netcdf/saver.py#L104 and changing the default is not as easy...

Handling of Standard name aliases

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## ✨ Feature Request When Iris is installed the file `lib/std_names.py` is generated from the xml version of the standard name table. In this process all *aliased* standard names are...