UC GIS Week

Old Train Maps: The Many Routes of California's Central Pacific Railroad

The Central Pacific Railroad was an audacious Sacramento start-up in the 1860s. An early challenge for the company was figuring out a feasible route across the Sierra Nevadas. How did the route of the Central Pacific Railroad evolve from a mere concept to the busy, as-built track it is today? We describe our QGIS workflow and the technical challenges in georeferencing 21 historical maps of varying size, scale, and accuracy, across three time periods.

Space, Place, and Linked Open Data: Digital Gazetteers and Digital Humanities

This talk outlines methods and theories surrounding digital gazetteers, and highlights the increasing use and importance of Linked Open Data (LOD) in the practice of digital spatial humanities. It explores how a variety of research projects and pedagogical approached can use LOD resources to answer basic research questions, create maps, and view spatial networks. This talk will also discuss how projects can make significant contributions to the growing spatial humanities digital ecosystem.

Variability of scale on 19th century British Admiralty Maps

An extensive study of the base year for British Admiralty charts of West Africa shows how a map purportedly on a single scale introduced measurable variations in scale. ArcGis Pro, 10.7 , & Autocad.