Section: Measuring global dimensions and local spaces | Digital Earth Basics | Z_GIS

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  • General

    • Introduction Forum
    • Development feedback Forum

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    • Learning Objectives (module level)

      • explain and communicate the advantages of an explicit geospatial approach to monitoring, understanding and managing real world issues across domains
      • apply knowledge about Earth's dimensions, shape models and global measurements to practical questions
      • understand and select appropriate spatial reference systems according to scale, context and application
      • design the collection and selection of geospatial data in support of specific use cases and workflows
      • communicate geospatial data through shared visual interfaces using web technologies
Geospatial approaches across disciplines and industries
Spatial reference systems

Measuring global dimensions and local spaces

  • Measuring global dimensions and local spaces

    • Orientation video

    • Learning objectives:

      • use geographic (long-lat) coordinates to identify locations worldwide
      • work with and apply estimates of Earth's dimensions
      • understand great circles for spherical distance measurements
      • understand fundamental principles of ellipsoids and geoids as geometric and physical models, respectively, of Earth
      • navigate virtual globe interfaces

    • Section overview:

    • Click 'View larger map', navigate to your hometown, right-click on the map and note its geographical coordinates:

    • Main elements of global coordinate systems URL
    • The LatLong graticule URL
    • Geographic Coordinates (Longitude and Latitude) Page
    • DMS DD converter URL
    • Exploring further: experience ArcGIS Earth URL

      Download and install this app to fully explore a 'Digital Earth' from a virtual globe perspective ...

    • LatLong Video Collection Page

      Explanation and illustration of geographic coordinates, great circles and related topics

    • Self assessment questions Page
    • Section quiz
    • Activities: Page

      Tasks to complete this section

    • Assessment: Page

      Check out these questions and assignments

Geospatial approaches across disciplines and industries
Spatial reference systems