Spatial Tab

The Spatial page consist of three separate sections.

• Extents - Used for discovery purposes. Holds common term description of the the area of earth to which the resource pertains.
• Resolution - Provides a guide to the spatial scale at which the resource is meant to be used.
• Reference System - Holds information about the standardised parameters used to store location information.

Extents

Description

Written explanation of the spatial and temporal extents of the resource

• ICSM Guidance - https://icsm-au.github.io/metadata-working-group/defs/ExtentGeographicDescription
• Optional field to be used when verbal descriptions help explain the extents of a resource.
  • When no text is present, clicking the boxed “+” under Description exposes a text box to populate.

Geographic bounding box

Four values which define a box containing the resource area of relevance

• ICSM Guidance - https://icsm-au.github.io/metadata-working-group/defs/ExtentBoundingBox
• Geographic extents may be populated via two mechanisms
  • Choose a region - provides a search box against a selected source and displays this on the map.

    NOTE: the geonames option is slow but comprehensive. The other reference internal files and are much quicker.

  • The map may be directly edited by
    • Entering and adjusting coordinate values

      NOTE: The CRS for this map is stated in the upper right dropdown. This should be left as “WGS 84 (EPSG:4326)”.

    • Manually drawing extents by selecting the Draw extents button in the upper right and then navigating to you desired location and clicking and dragging a box over the desired location

      NOTE: If multiple, polygonal or other extents are needed, expert users can do so in the Advanced metadata editing interface.

Resolution

Equivalent scale

Level of detail expressed as the scale of a comparable hardcopy map or chart

• ICSM Guidance - https://icsm-au.github.io/metadata-working-group/defs/SpatialResolution
• Each metadata record for a spatial resource Must include an Equivalent scale.
  • The Recommended values dropdown to the right provides a useful list of common values to select.
  • Values can be adjusted or entered free form in the Denominator box.

Reference system

Reference System Information

Displays a table of reference systems applicable to the resource

• ICSM Guidance - https://icsm-au.github.io/metadata-working-group/defs/SpatialReferenceSystem.html
• A partially completed Coordinate epoch entry provides a way to capture information needed to account for coordinate drift due to earth plate techtonics.
  • The date Should hold, in decimal year format, the date of which the coordinates used were captured.
  • Reference system type and Description prepopulated values Should remain.
• Appropriate additional references systems Must be added
  • Use the Search for a reference system dialogue to select from a prepopulated list of applicable CRS
    • Search using the dropdown or
    • The extended search available by clicking the spyglass icon
  • Additional CRS values may be added using the Advanced interface.
  • Add as many or few CRS as needed to describe the resource.