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Datasets – Geo-Referenced Field Photo Library.

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Presentation on theme: "Datasets – Geo-Referenced Field Photo Library."— Presentation transcript:

1 http://www.eomf.ou.edu/ Datasets – Geo-Referenced Field Photo Library

2 Register a user Log in Upload –Please upload individual files or a zip file of images (png, jpeg, gif), < 650 MB Edit the uploaded file and publish them Query the photo library

3 Upload your homework 1 photo to the library Be sure the photo has been geotagged and change photo name to building names before upload Edit the online comment, –Change Status to Public –Choose right Category –Description: OU Building, Building Name, 2009 Spring field method course, Your name. Check the results Query in the library

4 Query Photo Seach keywords: OU building Or seach your own user name Submit the query Check the photo Scroll down and select file type and size Download the file Open in google earth

5 Google Earth http://earth.google.com/ A virtual globe, map and geographic information program that was originally called Earth Viewer, and was created by Keyhole, Inc, a company acquired by Google in 2004. It maps the Earth by the superimposition of images obtained from satellite imagery, aerial photography and GIS 3D globe.

6 Release History Released as Google Earth in 2005,Availabe on Microsoft Windows 2000, XP, Vista, Mac OS X 10.3.9 and above, Linux (released on June 12, 2006), and FreeBSD. also available as a browser plugin (released on June 2, 2008) for Firefox, Safari 3, IE6 and IE7. available on the iPhone OS on October 27, 2008, as a free download from the App Store. In addition to releasing an updated Keyhole based client, Google also added the imagery from the Earth database to their web based mapping software. Google map.

7 Keyhole Earthviewer 1.0 - June 11, 2001 Keyhole Earthviewer 1.4 - 2002 Keyhole Earthviewer 1.6 - February 2003 Keyhole LT 1.7.1 - August 26, 2003 Keyhole NV 1.7.2 - October 16, 2003 Keyhole 2.2 - August 19, 2004 Google Earth 3.0 - June 2005 Google Earth 4.0 - June 11, 2006 Google Earth 4.1 - May 9, 2007 Google Earth 4.2 - August 23, 2007 Google Earth 4.3 - April 15, 2008 Google Earth 5.0 Beta - February 2, 2009

8 Resolution Resolution available is based somewhat on the points of interest and popularity Most land (except for some islands) is covered in at least 15 meters of resolution. Melbourne, Victoria, Las Vegas, Nevada, and Cambridge, Cambridgeshire include examples of the highest resolution, at 15 cm (6 inches).

9 Search and DEM search for addresses for some countries, enter coordinates, or simply use the mouse to browse to a location. 3D images of terrain and buildings are available digital elevation model (DEM) data collected by NASA's Shuttle Radar Topography Mission (SRTM).

10 KML Many people use the applications to add their own data, making them available through BBS or blog Google Earth is able to show all kinds of images overlaid on the surface of the earth and is also a Web Map Service client. Google Earth supports managing three- dimensional Geospatial data through Keyhole Markup Language (KML).

11 3D building and Street View 3D buildings and structures (such as bridges), which consist of users' submissions using SketchUp, a 3D modeling program. In version 4.3 released on April 15, 2008, Google Street View was fully integrated into the program allowing the program to provide an on the street level view in many locations. 360°panoramic street-level views

12 Ocean Imagery version 5.0 (February 2009), the entirety of Google Earth's ocean floor imagery was updated to new images by SIO, NOAA, US Navy, NGA, and GEBCO. Google Ocean feature allows users to zoom below the surface of the ocean and view the 3D bathymetry beneath the waves. On April 14, 2009, Google added underwater terrain data for the Great Lakes.

13 Wikipedia and Panoramio Geographic Web Layer integration with Wikipedia and Panoramio Wikipedia entries are scraped for coordinates via the Coord templates Panoramio is a geolocation-oriented photo sharing website.

14 Sky mode In version 4.2, released August 22, 2007, Google Earth added a Sky tool for viewing stars and astronomical images Hubble Space Telescope web-based version of Google Sky available at http://www.google.com/sky/http://www.google.com/sky/

15 Historical Imagery Introduced in version 5.0 Traverse back in time and study earlier stages of any place. Very useful for research purposes that require analysis of past records of various places.

16 Mars Introduced in Version 5.0 A separate globe of the planet Mars The maps are of a much higher resolution than those on the browser version of Google Mars 3D renderings of the Martian terrain. extremely high resolution images from the Mars Reconnaissance Orbiter's HiRISE camera that are of a similar resolution to those of the cities on Earth. high resolution panoramic images from various Mars landers, such as the Mars Exploration Rovers, Spirit and Opportunity, that can be viewed in a similar way to Google Street View.

17 Coordinate System and Projection The internal coordinate system of Google Earth is geographic coordinates (latitude/longitude) on the World Geodetic System of 1984 (WGS84) datum. Google Earth shows the earth as it looks from an elevated platform such as an airplane or orbiting satellite. The projection used to achieve this effect is called the General Perspective. This is similar to the Orthographic projection, except that the point of perspective is a finite (near earth) distance rather than an infinite (deep space) distance.

18 Baseline resolutions U.S.: 15 m (some states are completely in 1 m or better) Germany, Switzerland, Netherlands, Denmark, U.K., Andorra, Luxembourg, Liechtenstein, San Marino, Vatican City: 1 m or better Czech Republic 0.2 m (Prague 0.1 m) Slovakia, Hungary: 2.5 m (medium resolution) Global: Generally 15 m (some areas, such as Antarctica, are in extremely low resolution), but this depends on the quality of the satellite/aerial photograph uploaded.

19 Typical high resolutions U.S.: 1 m, 0.6 m, 0.3 m, 0.15 m (extremely rare; e.g. Cambridge and Google Campus, or Glendale) Europe: 0.3 m, 0.15 m (e.g. Berlin, Zürich, Hamburg), 0.1 m Prague

20 Altitude resolution Surface: varies by country Seabed: Not applicable (a colorscale approximating sea floor depth is "printed" on the spherical surface).

21 Age: Images dates vary The image data can be seen from squares made when DigitalGlobe Coverage is enabled. The date next to the copyright information is not the correct image date. Zooming in or out could change the date of the pictures. Most of the international urban image dates are from 2004 and have not been updated. However, most US images are kept current. Google announces imagery updates on their LatLong Blog in form of a quiz, with hints of the updated locations. The answers are posted some days later in the same blog. http://google-latlong.blogspot.com/

22 GPS integration read tracks and waypoints from a GPS device. A variety of third party applications can generate KML or KMZ files based on user- specified or user-recorded waypoints. Real-time navigation

23 User Guide Help – User Guide Help – Tutorial Help – shortcut

24 1.Search panel - Use this to find places and directions and manage search results. Google Earth EC may display additional tabs here. find places and directions manage search results Google Earth EC 2. 3D Viewer - View the globe and its terrain in this window. 3. Toolbar buttons - See below.See below 4. Navigation controls - Use these to zoom, look and move around (see below).see below 5. Layers panel - Use this to display points of interest.Use this to display points of interest 6. Places panel - Use this to locate, save, organize and revisit placemarks. locate, save, organize and revisit placemarks 7. Add Content - Click this to import exciting content from the KML GalleryKML Gallery 8. Status bar - View coordinate, elevation, imagery date and streaming status here. 9 Overview map - Use this for an additional perspective of the Earth.additional perspective

25 The Google Toolbar Full Screen Create a Place mark Add Polygon Add Path Add Image overlay Add ruler Earth day view Sky View Printer View in Google Maps

26 The Google Sidebar Search bar My Places Sightseeing Layers Set transparency level of overlays Tour player Tour Player

27 Navigating on the Earth http://earth.google.com/intl/en/userguide/v 5/tutorials/navigating.html

28 Tips Use keyboard to navigate –Page up page down –Arrow to move –Shift+Up,down to tilt shift + left,right to rotate –N to north up This will help you to work in field without mouse

29 Tips Tools - Options Change elevation exaggeration to 3 to give you exaggerated terrain Go to Cache tab –Chang the disk cache size to 2000 MB –This will give you more cache for offline

30 Google Earth Community dedicated to producing placemarks of interesting or educational perspectives http://bbs.keyhole.com http://www.youtube.com/user/Google http://www.youtube.com/user/GoogleEarth VideoHelp http://www.youtube.com/user/SketchUpVid eo http://wikimapia.org/


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