IntroducingAuthoritative Topos
&GeoChange Maps
Award winning digital map products developed by
The W. E. Upjohn Center for the Study of Geographical Change
Western Michigan UniversityDepartment of Geography
Kalamazoo, Michigan
Phone: 269-387-3364Fax: 269-387-3582
www.wmich.edu/ucgc
INTRODUCING OUR AWARD WININGAuthoritative US Topos and GeoChange Maps
Developed byThe W. E. Upjohn Center for the Study of Geographical Change
Western Michigan University
and honored byThe International Map Industry Association (IMIA):
Best Digital Map Product - Gold Award:Authoritative US Topo & GeoChange Maps
Overall Americas All-Category Winner:Authoritative US Topo & GeoChange Maps
Presented at the IMIA (Americas) Map Conferenceon September 10, 2013, held in Cambridge, Mass.
What are Authoritative US Toposand
GeoChange Maps?
Authoritative US Topos digital maps are produced from scans of the entire database of US topographic maps.
Digitized maps are geo-referenced and processed for color consistency.
Authoritative US Topos are the basis of our GeoChange map product, paired with recent NAIP aerial photography, and producing a stand alone reference.
What makes our product unique?
Authoritative US Topos and GeoChange maps are produced using our unique digitization process designed to produce GIS data from conventional maps.
All quads (the same paper maps used in the production of DRGs) are scanned in high resolution at 500 dpi then processed to 250 dpi without losing digital quality.
Our 1:24,000 scale digital topos line up impeccably with 1:12,000 scale imagery, largely due to USGS field surveying and quality standards
What are some of the ways ourAuthoritative Topos differ from USGS DRGs?
DRG Authoritative Topo
Authoritative US Topos show sharp, clear definition of text and features.
What are some of the ways ourAuthoritative Topos differ from USGS DRGs?
DRG Authoritative Topo
Authoritative US Topos maintain clear and distinct contour line detail.
What are some of the ways ourAuthoritative Topos differ from USGS DRGs?
DRG Authoritative Topo
High resolution Authoritative US Topos maintain distinction in features. Here the individual symbols for a vineyard are clearly visible.
What are some of the ways ourAuthoritative Topos differ from USGS DRGs?
DRG Authoritative Topo
With Authoritative US Topos, features such as rivers,Streams, and rapids are more clearly defined
What are some of the ways ourAuthoritative Topos differ from USGS DRGs?
DRG Authoritative TopoAuthoritative US Topos provide clear, consistent, and well defined
contours.
What are some of the ways ourAuthoritative Topos differ from USGS DRGs?
DRG Authoritative TopoAuthoritative US Topos ensure contour lines remain separate and distinct and are visible across borders.
What are some of the ways ourAuthoritative Topos differ from USGS DRGs?
DRG Authoritative Topo
Authoritative US Topos provide consistent color and definition with no fading.
How do we produce ourGeoChange Maps?
Authoritative US Topos are paired with aerial photography to produce GeoChange composites, which allow map features to be read over imagery.
What are the advantages of maps and imagery together?
Tracing and Tracking Geographical Change
Glacial Movement
Land Cover Change
Urban Implosion Glacial Movement-Glacier National ParkAhern Pass, MT (48 45N, 113 45W)Map date 1968, Aerial Photo date 2012Contour Interval = 80 feetMinor movement of glaciers in this region
Authoritative Topo Aerial Photogaph GeoChange
What are the advantages of maps and imagery together?
Tracing and Tracking Geographical Change
Glacial Movement
Land Cover Change
Urban Implosion
Land Cover Change -Upper Peninsula Michigan Mining CountrySilver City, MI (46 45N, 89 30W)Map date 1943, Aerial Photo date 2012Contour Interval = 20 feetForest and upper crust removal
Authoritative Topo Aerial Photogaph GeoChange
What are the advantages of maps and imagery together?
Tracing and Tracking Geographical Change
Glacial Movement
Land Cover Change
Urban Implosion
Urban ImplosionFlint, MI (43N, 83W)Map date 1967, Aerial Photo date 2010Contour Interval = 5 feet
Authoritative Topo Aerial Photogaph GeoChange
Would you like more information about Authoritative US Topos and GeoChange
Maps for Mobile Devices?
If our product is of interest to you,would you be willing to take the short
survey below?Click HERE for Survey
Thank you for taking the time to review our Authoritative Topos and GeoChange Digital Maps developed by the Western Michigan University
W. E. Upjohn Center for the Study of Geographical Change.
The W. E. Upjohn Center Staff
View our product in detail at: http://www.wmich.edu/ucgc/images/ID_AMERICAN_FALLS_1969-2013.tif