Catalog https://dust.aemet.es/thredds/catalog/restrictedDataRoot/NCEP-GEFS/2012/12/catalog.html

Dataset	Size	Last Modified
12		--
20121231_NCEP-NGAC.nc	13.03 Mbytes	2012-12-31T10:31:25Z
20121230_NCEP-NGAC.nc	13.03 Mbytes	2012-12-30T10:31:19Z
20121229_NCEP-NGAC.nc	13.03 Mbytes	2012-12-29T10:31:22Z
20121228_NCEP-NGAC.nc	13.03 Mbytes	2012-12-28T10:31:19Z
20121227_NCEP-NGAC.nc	13.03 Mbytes	2012-12-27T10:31:20Z
20121226_NCEP-NGAC.nc	13.03 Mbytes	2012-12-26T10:31:24Z
20121225_NCEP-NGAC.nc	13.03 Mbytes	2012-12-25T10:31:23Z
20121224_NCEP-NGAC.nc	13.03 Mbytes	2012-12-24T10:31:23Z
20121223_NCEP-NGAC.nc	13.03 Mbytes	2012-12-23T10:31:22Z
20121222_NCEP-NGAC.nc	13.03 Mbytes	2012-12-22T10:31:37Z
20121221_NCEP-NGAC.nc	13.03 Mbytes	2012-12-21T10:31:28Z
20121220_NCEP-NGAC.nc	13.03 Mbytes	2012-12-20T10:31:22Z
20121219_NCEP-NGAC.nc	13.03 Mbytes	2012-12-19T10:31:20Z
20121218_NCEP-NGAC.nc	13.03 Mbytes	2012-12-18T10:31:22Z
20121217_NCEP-NGAC.nc	13.03 Mbytes	2012-12-17T10:31:32Z
20121216_NCEP-NGAC.nc	13.03 Mbytes	2012-12-16T10:31:22Z
20121215_NCEP-NGAC.nc	13.03 Mbytes	2012-12-15T10:31:26Z
20121214_NCEP-NGAC.nc	13.03 Mbytes	2012-12-14T10:31:21Z
20121213_NCEP-NGAC.nc	13.03 Mbytes	2012-12-13T10:31:21Z
20121212_NCEP-NGAC.nc	13.03 Mbytes	2012-12-12T10:31:22Z
20121211_NCEP-NGAC.nc	13.03 Mbytes	2012-12-11T10:31:22Z
20121210_NCEP-NGAC.nc	13.03 Mbytes	2012-12-10T10:31:23Z
20121209_NCEP-NGAC.nc	13.03 Mbytes	2012-12-09T10:31:21Z
20121208_NCEP-NGAC.nc	13.03 Mbytes	2012-12-08T10:31:21Z
20121207_NCEP-NGAC.nc	13.03 Mbytes	2012-12-07T10:31:24Z
20121206_NCEP-NGAC.nc	13.03 Mbytes	2012-12-06T10:31:22Z
20121205_NCEP-NGAC.nc	13.03 Mbytes	2012-12-05T10:31:20Z
20121204_NCEP-NGAC.nc	13.03 Mbytes	2012-12-04T10:31:20Z
20121203_NCEP-NGAC.nc	13.03 Mbytes	2012-12-03T10:31:20Z
20121202_NCEP-NGAC.nc	13.03 Mbytes	2012-12-02T10:31:23Z
20121201_NCEP-NGAC.nc	13.03 Mbytes	2012-12-01T10:31:25Z

Initial TDS Installation at Barcelona Dust Regional Center see Info
Documentation