Is your feature request related to a problem?

I was trying to combine datasets with a field data (i.e. radar signal data on a lat and lon grid) each dataset being from a different point of time. As far as I could understand, there currently is no straight forward way to do this in xarray (or at least I did not find it).

Describe the solution you'd like

Maybe this would be a nice thing to add internally (e.g. xr.merge([ds1, ds2], newaxis='time')). Or in case I just did not find it, lets add it to the Combining data Documentation site for easy access.

Describe alternatives you've considered

I added a new coordinate and dimension (i.e. 'time') to every dataset individually before using merge for the datasets.

Additional context

No response