1 / 13

Where have we been…

Where have we been…. Communication science, vision, cogintion Map users Activities and tasks Deconstruction – role of the state Web mapping mapping history teaching spatial concepts to children Community mapping VGI. VGI…. What is it? Citizens as censors, the world volunteered….

saxton
Télécharger la présentation

Where have we been…

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Where have we been… • Communication science, vision, cogintion • Map users • Activities and tasks • Deconstruction – role of the state • Web mapping • mapping history • teaching spatial concepts to children • Community mapping • VGI

  2. VGI… What is it? Citizens as censors, the world volunteered…

  3. VGI Evolution 1. Historical Map Place names

  4. VGI Evolution 2. Gazetteer Place name lists And associated maps

  5. VGI Evolution • From the State run geographic information to: • User-generated geographic information • Wikimapia (like fllickr referencing photos) • Google Earth • Openstreetmap

  6. Openstreetmap • Started 2004 by Steve Coast in England • Walk, bike, hike, drive recording tracks with a GPS • Recording redrawn on a computer, additional info added (street names0 • Uploaded into a central database • Problems?

  7. Openstreetmap • Many cities mapped to a level of detail greater than google maps (or Yahoo or Microsoft). • Data more current than many other offerings • Opencyclemap • Special versions • topo map integration, • kml export for import into Google Earth • Export to shape files • Wikiprojecthaitihttp://haiti.openstreetmap.nl/

  8. VGI terminology • Web 2.0 – real applications running on the web - broad, diffuse, interacts with many people simultaneously, real time collaboration • Humans as sensors: satellites, openstreetmap GPS • Citizen science: bird counts, e-flora • Participant populations: truckers, farmers • Early warnings: Indian ocean tsunami, hurricane Katrina emergency response

  9. VGI questions • Why do people do this? • Authority? • Standards = authority = state mapping agencies • Google maps… • Digital divide versus ‘open’ data

  10. VGI value • Learn about remote places • Plan trips • Provide background, travellogs • Cheap source of geographic info • Military and commercial intelligence… • Local activities about local people in geographic locations that go unnoticed • Life at the local level – interesting lasting compelling value to geographers.

More Related