1 / 46

…or matching

Georectification of Historic Aerial Photographs for Douglas County, KS Mid-America GIS Consortium Conference 2006 Rhonda Houser, University of Kansas Libraries. …or matching. KU University Relations. Overview. GIS/Data Services at KU Libraries Project background Project logistics

janet
Download Presentation

…or matching

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. Georectification of Historic Aerial Photographs for Douglas County, KSMid-America GIS Consortium Conference 2006Rhonda Houser, University of Kansas Libraries …or matching KU University Relations

  2. Overview • GIS/Data Services at KU Libraries • Project background • Project logistics • Uses of photos • Access to photos • Future work

  3. Anschutz Library: Map Collection GIS and Data Lab

  4. GIS and Data Lab

  5. findingdownloading converting creating acquiring editing manipulating running analyses

  6. 11x17 and 24x36 inch scanners

  7. Training

  8. Introduction • enhance existing image archive • contribute to technical methodology • add to supply of historical spatial data • generate data for use with other spatial data

  9. Background Scan • Obtained air photos from 1930s to 1980s • Converted print photo to image by scanning • Determined township, range and section

  10. Coarse adjustment… shift, rotate, etc. Georeference

  11. Target image- unknown geographic coordinates Reference image- known geographic coordinates Georeference

  12. Identify potential links between target… Georeference

  13. … and reference image. Georeference

  14. Create a link on target image Georeference

  15. Create a matching link on reference image Georeference

  16. Repeat process to identify matched points Georeference

  17. Georeference

  18. Georeference

  19. Georeference

  20. Georectify

  21. Georectify

  22. Georectify

  23. Applications • land surveying and property valuation • historical land use • geography and remote sensing classes • ecological classification • wildlife habitat mapping • drought detection • geology and soil classification • transportation studies • archaeological/ anthropological sites • historic trails

  24. Online Image Archive Air photos are available online: www.lib.ku.edu/mapscoll/web/airindex.shtml

  25. Choose quadrant

  26. Choose area

  27. Choose year

  28. View or download image

  29. Project Status • 1937 set essentially done • 1954 set half done • Develop template for online access • Incorporate other sets as finished

  30. KU Memorial Stadium 1937

  31. KU Memorial Stadium 1954

  32. KU Memorial Stadium 1966

  33. KU Memorial Stadium 1976

  34. Acknowledgements Sources of data: • Digital orthophoto, road data, and public land survey system data • Digital air photos

  35. Contributors • Douglas County Public Works • Various KU students, staff and faculty, including Ben Hatfield, Julienne Emry and Beth Davis • This investigation was supported by the University of Kansas General Research Fund Allocation #23017831.

  36. Q U E S T I O N S Air Photo poster online:http://maplibrary.esri.com/LibraryService/DownloadedFiles/esri_poster.jpgRhonda Houser 785.864.1238data@ku.edu

  37. Create Metadata

  38. GPS locations for sunflowers

  39. South Korea and Protests

  40. Russian election data

  41. Questions of distance, concentration, proximity…

  42. Data Output: desktop printers, 11x17 inch printer and 36 inch wide color plotter

More Related