Merge pull request #369 from NOAA-GFDL/358.empty-icebergs-2 #809

Job	Run time
CI (--with-mpi, --enable-quad-precision)	8m 14s
CI	6m 25s
CI (--enable-quad-precision)	6m 37s
CI (--with-mpi)	8m 15s
	29m 31s

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