Sharing historical map collections online
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Our work to date provides solutions to sharing large collections of maps in a series or from atlases, even if the maps have different scales, dates, sizes, and themes. These collections can be shared via web apps that provide viewers with useful interactivity and functionality. We have also developed the means to update collections on a regular basis―for example, the USGS topographic map collection is now being updated quarterly. To support developers of these collections, we provide documentation on the workflow, share example datasets to allow them to test the methodology, and allow access to the web app which can be configured to conform to users’ requirements. In this presentation, we detail the workflows and resources we have developed, and we demonstrate solutions for map collections of different types.
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Sharing historical map collections online
- 1. Sharing Historical Map Collections Online Aileen Buckley, Esri Slides at Slideshare,net search Aileen Buckley
- 2. The Goal • Create interactive online collections of historical maps that include archival quality images of maps in the collection • Thereby providing a rich and engaging online experience to increase the use of the collection through - the ability to select, compare, and download the images - the ability to share your view of the collection with others • While avoiding the pitfalls that could terminate or slow down the workflow to achieve these goals
- 3. The Goal • Create interactive online collections of historical maps that include archival quality images of maps in the collection • Thereby providing a rich and engaging online experience to increase the use of the collection through - the ability to select, compare, and download the images - the ability to share your view of the collection with others • While avoiding the pitfalls that could terminate or slow down the workflow to achieve these goals The maps The apps The traps
- 4. The Goal • Create interactive online collections of historical maps that include archival quality images of maps in the collection • Thereby providing a rich and engaging online experience to increase the use of the collection through - the ability to select, compare, and download the images - the ability to share your view of the collection with others • While avoiding the pitfalls that could terminate or slow down the workflow to achieve these goals The focus of this work
- 5. Atlas Maps “Collections of historical maps” = “Atlas maps”
- 6. Maps in the Collections • Single or small number of maps or large number of maps • Maps with varying map extents, dates, map scales, formats, themes, etc.… • Maps with interior content, overedge areas, etc.… • Maps that are not oriented with north at the top of the page • Maps that are damaged • Duplicate maps • Damaged maps
- 9. Map Sheet • The original paper map Text
- 10. Map Extent • What you want to see in the web app
- 11. Neatline • What you (normally) want hidden
- 12. Modified Neatline • Fits the true map extent Text
- 13. Patterns in Map Collections • Full coverage of the entire spatial extent, multiscale - Adjacent maps - Multiple scales > overlapping maps • Partial coverage, multiscale - Separated areas - May contain adjacent maps - Multiple scales > overlapping maps • Single extent - One map scale - Multiple theme > overlapping maps
- 14. Patterns in Map Collections • Full coverage entire spatial extent - Adjacent maps - Multiple scales > overlapping maps - Duplicate maps?
- 15. Patterns in Map Collections • Full coverage entire spatial extent • Partial coverage separated areas - Adjacent maps - Multiple scales > overlapping maps - Duplicate maps?
- 16. Patterns in Map Collections • Full coverage entire spatial extent • Partial coverage separated areas • Single extent - One map scale - Multiple themes - Overlapping maps
- 18. USGS Historical Topographic Maps • Scans of 178,790 USGS quads • A variety of map scales, page sizes, designs, etc. • Simple, intuitive web app
- 19. Vietnam Joint Operations Graphics (JOGs)
- 20. Vietnam Joint Operations Graphics (JOGs) • During the decade of conflict in Vietnam, the Defense Mapping Agency for the U.S. Military compiled: - 502 - 1:50000 scale topographic maps covering the entire country - 30 - 1:250000 scale topographic maps covering approximately 75 percent of Vietnam along with areas of surrounding countries • Status - Waiting for app to be developed - Looking for opportunities to include additional scans
- 22. Legend Glossary
- 23. U.S. National Park Service Topographic Maps
- 24. US National Park Service Maps • Scans of 458 maps • A variety of map scales, page sizes, designs, etc. • Modification of the USGS topo map app - Separated areas - Search capabilities • Status - Scans complete - Waiting for app modification Also Alaska and Hawaii
- 26. Bering, Chukchi, and Beaufort Seas Strategic Assessment
- 27. Bering, Chukchi, and Beaufort Seas Strategic Assessment: Data Atlas • NOAA • 99 maps • Maps, legends, text, drawings • Original page size ~ 2’ x 3’ • Status: - Scans complete - Map services need to be added to AGO - Waiting for app development
- 30. Patterns in Map Collections • Full coverage entire spatial extent • Partial coverage separated areas • Single extent USGS quads & Vietnam JOGs NPS maps NOAA atlas maps
- 32. Metadata (In Excel Format) Scanned Map Images (.TIF, .OVR, and .AUX.XML Files) Folders by Subdivisions (add this step for very large numbers of files) Mosaic Datasets Master Mosaic Dataset Image Service (Scanned Map Images) Web map Web app Envelopes
- 34. USGS Historical Topographic Map Explorer • Simple and intuitive • Allows searching • Allows reordering • Allows comparison • Allows view to be shared
- 45. Pitfalls to Avoid • Best to conform to organizations mission and needs • Do not expect you can digitize, georeference, or publish all maps in your collection • Selection criteria - Should the maps be digitized? - Are there any issues preventing distribution of the maps? - Is the infrastructure and technical ability in place, as well as suitable condition of maps? • Good planning and testing will ease and shape the scope of the project • Preservation can be a by-product of digitizing, but not the primary goal • Determine how people may use the published maps
- 46. Questions? Aileen Buckley, Esri – Redlands abuckley@esri.com Slides at Slideshare,net search Aileen Buckley
Editor's Notes
- Atlas Maps and Atlas Apps Authors: Aileen Buckley*, Esri, Greg Allord, Esri Contractor Topics: Cartography, Geographic Information Science and Systems Keywords: atlas, historical map, ArcGIS, web app, atlas app Session Type: Paper Scheduler ID: FRI-087-8:00 a.m. Day: 4/13/2018 Start / End Time: 8:00 AM / 9:40 AM Room: Bacchus, Sheraton, 8th Floor Today’s expectations for atlases are widely different from what they were ten or even five years ago. Today, maps are expected to be freely available online and readily accessible via interactive web apps. Maps in atlases are no different. While there have been major strides in developing methods for scanning and sharing small collections of maps online, fewer developments have been directed toward large collections of maps in atlases. Even fewer of these efforts have been exerted to develop common workflows and off-the-shelf resources to be used by the many who want to share their own collections. This deficiency is complicated by the fact that nearly every atlas requires a different solution because the variety of atlases ranges from many maps with the same extent and map scale albeit varying themes, to large numbers of maps with varying scales and extents and a single theme. Somewhere in between are collections with combinations of both. In this presentation we detail the workflows and resources we have developed to address this deficit, and we demonstrate a variety of apps we have designed for atlases of different types.
- Atlas Maps and Atlas Apps Authors: Aileen Buckley*, Esri, Greg Allord, Esri Contractor Topics: Cartography, Geographic Information Science and Systems Keywords: atlas, historical map, ArcGIS, web app, atlas app Session Type: Paper Scheduler ID: FRI-087-8:00 a.m. Day: 4/13/2018 Start / End Time: 8:00 AM / 9:40 AM Room: Bacchus, Sheraton, 8th Floor Today’s expectations for atlases are widely different from what they were ten or even five years ago. Today, maps are expected to be freely available online and readily accessible via interactive web apps. Maps in atlases are no different. While there have been major strides in developing methods for scanning and sharing small collections of maps online, fewer developments have been directed toward large collections of maps in atlases. Even fewer of these efforts have been exerted to develop common workflows and off-the-shelf resources to be used by the many who want to share their own collections. This deficiency is complicated by the fact that nearly every atlas requires a different solution because the variety of atlases ranges from many maps with the same extent and map scale albeit varying themes, to large numbers of maps with varying scales and extents and a single theme. Somewhere in between are collections with combinations of both. In this presentation we detail the workflows and resources we have developed to address this deficit, and we demonstrate a variety of apps we have designed for atlases of different types.