Geographic Box

Note: North/South and East/West coordinates should not be equal. If the data are a point or a line, please provide 4 different coordinates with at least an epsilon difference between them (e.g. 0.001).

The bounding box is used mainly to enable spatial searches and data comparison. By the way, it needs to be standardized and that is why it must be expressed using geographic WGS84 coordinates.

It should be for the information content at a minimum. It may include no-data areas since it is a rectangle, whereas the content can be something else. There could also be 'holes' within the data. Based on security issues, some portions may not be releasable.

The properties of Geographic Box are listed below.

Identifier	Title / Description	Value Domain	Card
west [DMF/Core]	Western Most Longitude This is the WGS84 western most longitude of the geographic object.	Float Default is -180	1
east [DMF/Core]	Eastern Most Longitude This is the WGS84 eastern most longitude of the geographic object.	Float Default is 180	1
south [DMF/Core]	Southern Most Latitude This is the WGS84 Southern most latitude of the geographic object.	Float Default is -90	1
north [DMF/Core]	Northern Most Latitude This is the WGS84 Northern most latitude of the geographic object.	Float Default is 90	1

DMF/Core

DMF/Core defines the minimum set of metadata elements to be implemented by any metadata catalogue. This set satisfies the discovery use case.