LENS2 data comparison

[adagj]

New feature type

New plot and/or plot enhancement

What is this new feature?

In the NCAR version of ADF, they use LENS2 data for comparison in the timeseries plot. I think that would be kind of nice to have as well. Can we download the data? /glade/campaign/cgd/cas/islas/CESM_DATA/LENS2/global_means/annualmeans/{self.field}_am_LENS2_first50.nc

Or should we rather make a "comparison set" from NorESM CMIP6. I'm leaning more towards LENS2, but I'm not sure.

Here is an example of a timeseries with LENS2 data for comparison: NCAR/cesm_dev#13

And here is a description of LENS2: https://www.cesm.ucar.edu/community-projects/lens2

Assistance required?

No, I will make a PR when the feature is ready

Extra info

No response

[MichaelSchulzMETNO]

LENS is a bit cold in the Northern Midlatitudes in the "aerosol era", but otherwise its a great resource for comparion, so yes its a good reference.