added 3 new tests and updated doc intro with new climater-catalog table
added 3 new tests that explicity keep everything the same, using dask, parallel, and serial engines respectively that test the masked mean result
Maintenance scheduled for Tuesday, December 23, from 5 PM to 7 PM ET.
added 3 new tests that explicity keep everything the same, using dask, parallel, and serial engines respectively that test the masked mean result