Geotagging

Geotag information in a JPEG photo, shown by the software gThumb The related term geocoding refers to the process of taking non-coordinate based geographical identifiers, such as a street address, and finding associated geographic coordinates (or vice versa for reverse geocoding). Such techniques can be used together with geotagging to provide alternative search techniques. Geotagging techniques[edit] The geographical location data used in geotagging will, in almost every case, be derived from the global positioning system, and based on a latitude/longitude-coordinate system that presents each location on the earth from 180° west through 180° east along the Equator and 90° north through 90° south along the prime meridian. Geotagging photos[edit] There are two main options for geotagging photos; capturing GPS information at the time the photo is taken or “attaching” the photograph to a map after the picture is taken. GPS formats[edit] Geotagging standards in electronic file formats[edit]

Grassroots Mapping » What is Grassroots Mapping? January 27th, 2010 by Jeffrey Warren A group of activists, educators, technologists, and community organizers now known as Public Laboratory came together to organize the Gulf Oil Mapping project. Since May 2010, we have been working with New Orleans-based Louisiana Bucket Brigade to get Gulf Coast residents out on boats and along beaches to produce high-resolution aerial imagery of the spill’s effects. All the imagery from this project is being released into the public domain Read more How it started This January 2010, Jeff Warren worked with a series of organizations and communities to produce maps with children and adults from several communities in Lima, including the Cantagallo settlement of Shipibo on the bank of the Rimac and the Juan Pablo II community in Villa El Salvador. Seeking to invert the traditional power structure of cartography, the grassroots mappers used helium balloons and kites to loft their own "community satellites" made with inexpensive digital cameras.

NASA World Wind Animation showing atmosphere and shading effects in v1.4 USGS Urban Ortho-Imagery of Huntington Beach, California in older version of World Wind (1.2) A cyclone moving across the Indian Ocean (on normal cloud cover - not Rapid Fire MODIS) Washington DC, Wikipedia point layer - icons link to Wikipedia articles Overview[edit] World Wind was released as open source in 2004 by NASA. Users could interact with the selected planet by rotating it, tilting the view, and zooming in and out. Other features of World Wind.NET included support for .X (DirectX 3D polygon mesh) models and advanced visual effects such as atmospheric scattering or sun shading. The resolution inside the US is high enough to clearly discern individual buildings, houses, cars (USGS Digital Ortho layer) and even the shadows of people (metropolitan areas in USGS Urban Ortho layer). Microsoft has allowed World Wind to incorporate Virtual Earth high resolution data for non-commercial use.[2] Add-ons and plugins[edit] Tutorials[edit] Age

MyGeoPosition.com - Free address geocoding / geo-metatags / geot Bing Maps Platform Bing Maps Platform (previously Microsoft Virtual Earth) is a geospatial mapping platform produced by Microsoft. It allows developers to create applications that layer location-relevant data on top of licensed map imagery. The imagery includes samples taken by satellite sensors, aerial cameras (including 45 degree oblique "bird's eye" aerial imagery licensed from Pictometry International), Streetside imagery, 3D city models and terrain. Bing Maps Platform also provides a point-of-interest database including a search capability. Microsoft uses the Bing Maps Platform to power its Bing Maps product. Key features of the Bing Maps Platform include: See also[edit] Bing Maps External links[edit] Comparable and/or related services[edit] OpenStreetMap – OpenStreetMapNokia Maps – Nokia’s mapping serviceGoogle Maps – Google's mapping serviceApple Maps – Apple's mapping serviceMicrosoft Research Maps – public domain (older than five years) satellite imagery via Microsoft serversMapQuestYahoo!

The Mobile City » Blog Archive » Cartography: the old versus the On December 14th 2009 De Balie – an Amsterdam-based center for culture and politics – organized an evening about old and new cartographies. Participants were Ferjan Ormeling (Emeritus Professor Cartography, Faculty of Geographical Sciences, Utrecht University), Henk van Houtum (Associate Professor of Geopolitics and Political Geography, Head of the Nijmegen Centre for Border Research), Maarten Keulemans (science journalist), Jelle Reumer (director Natural Museum Rotterdam, Special Professor at Utrecht University), Lucas Keijning (NEMO science center), and me. The evening was lead by Volkskrant journalist Martijn van Calmthout. The evening was set up as a prelude to the presentation of a new world map the day after in The Hague. We have been making maps for centuries, to establish territorial borders or mark safe routes. Cartographer Ferjan Ormeling started the evening with an overview of cartography as a professional scientific discipline.

(e)space & fiction A Weblog About Maps Digital Urban