UR/Esri Colloquium Series

4 to 5:30 p.m. Wednesday, March 30
Esri Building L Fourplex

Directions to Esri.

Aileen Buckley "Visualization Methods for Spatio-temporal Data"

Data for space-time phenomena have become much more prevalent recently, and software is becoming ever more capable of working with these data. Although cartographers have developed a variety of methods for displaying such data, many researchers working with spatio-temporal data are not familiar with these display techniques.

In this presentation, I illustrate many of the methods that can be used to visualize spatio-temporal data. Examples for qualitative data include mapping where change occurs, mapping a change in attribute over time, and mapping a change in location over time (for point, line and polygon data).

For quantitative data, examples include quantitative change maps, cyclical phenomena maps, time composite maps, time series maps, and quantitative attribute change maps. The choice of an appropriate method depends on the type of data being visualized—displays for qualitative data are somewhat different from those for quantitative data, and mapping persistence in the data is different from mapping discrete time steps.

In addition to demonstrating the methods for mapping spatio-temporal data, I also discuss the advantages and limitations of each. Challenges for nearly any display of space-time data are also considered, such as user interaction with the maps and data, the design of legends and other map surrounds, and the media used to deliver the maps.

Bio of Aileen Buckley

Aileen Buckley is the Esri Mapping Center lead. She came to Esri in 2003 from University of Oregon (UO) where she was a professor of geography teaching cartography, GIS, GPS, and other mapping sciences. She holds an adjunct associate professor appointment at the University of Redlands in the Masters of Science in GIS program.

Her doctoral degree is from Oregon State University. Prior to her doctoral studies, she worked at an engineering firm as a project manager on projects converting cadastral paper maps to GIS data layers. And before that she worked in the cartography division of the National Geographic Society on the seventh edition of their Atlas of the World.

She has written a number of articles and book chapters on various aspects of GIS and cartography, and she is an editor of the Encyclopedia of Geographic Information Science by Sage Publications. At UO, she also helped author the Atlas of Oregon, Second Edition (2001). She is second author of the book "Map Use: Reading and Analysis", Sixth Edition by Esri Press. She was the 2007–2009 president of the Cartography and Geographic Information Society (CaGIS).

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