See http://www.loc.gov/standards/mods/mods-mapping.html#subject. The following specific guidelines apply for the DAMS:

MARC 21 field

Mapping condition

MODS element

Notes

500

subject/cartographic/*

Use information in general notes (MARC field 500) for additional information about coordinates, zone, and equinox.

034$d$e$f$g

subject/cartographic/coordinates

Data transformation may be required.

The target format for point coordinates in the DAMS MODS should be decimal, with the value for latitude first (e.g.: 18.2975,-65.9914). Preferably, use positive values for coordinates on the Northern and Eastern hemisphere, and negative values for coordinates on the Southern and Western hemisphere. If you provide a compass direction, place it after the numeric coordinate, not before.

Specifications for coordinates for bounding boxes (rectangles) or polygons have not yet been finalised. Please contact the DAMS Management team to coordinate a suitable representation for your geospatial data.

255$c

subject/cartographic/coordinates

Data transformation required.

The target format for point coordinates in the DAMS MODS should be decimal, with the value for latitude first (e.g.: 18.2975,-65.9914). Preferably, use positive values for coordinates on the Northern and Eastern hemisphere, and negative values for coordinates on the Southern and Western hemisphere. If you provide a compass direction, place it after the numeric coordinate, not before.

Specifications for coordinates for bounding boxes (rectangles) or polygons have not yet been finalised. Please contact the DAMS Management team to coordinate a suitable representation for your geospatial data.

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