201408151015:
	/Users/heyc/tools/20thC/datm_diag_diff.sh	--->	vwnd_10m_mean_YR_1948-2009-minus-vwnd_10m_mean_YR_1948-2009.nc
	/Users/heyc/tools/20thC/datm_diag_diff.sh	--->	vwnd_10m_mean_YR_1948-2009-minus-vwnd_10m_mean_YR_1948-2009_PROJ_GL.*