One exception to this is the Biological Data Profile of the FGDC. To go along with Bounding Coordinates specifying the extent of the data in the dataset, the profile specifies a mandatory Description of Geographic Extent element to provide a text description of the extent of the study and/or data set.
Calm, peaceful days. The Halcyon is a bird of Greek legend and the name is now commonly given to the European Kingfisher. The ancients believed that the bird made a floating nest in the Aegean Sea and had the power to calm the waves while brooding her eggs.
Halcyon Days - Literature. 1  Halcyon Days (book), a 1997 collection of interviews with programmers of early video games. 2  Halcyon Days (play), a 1991 play by Steven Dietz. 3  Halcyon Days, a play by Shoji Kokami.  4 Goodbye, Halcyon Days, a volume and chapter in Bleach; see List of Bleach chapters (188â423)