I am Research Physical Scientist and Director of the Center of Excellence for Geospatial Information Science, for more than 27 years with the USGS and 17 years as a professor in the academy. I conduct research in cartography, geospatial semantics and ontology, map projections, and high performance computing for geospatial data. I received BS, MA, and PhD degrees in geography and am a Fellow of the Cartography and Geographic information Society (CaGIS) and the University Consortium for Geographic Information Science. I received the CaGIS Distinguished Career Award in 2012. I am Vice President of the ICA, and Chair of the Local Organizing Committee and Director of the 2017 International Cartographic Conference in Washington, D.C.
- Cartography in Early Warning and Crisis Management
- the History of Cartography
- Map Projections
- Open Source Geospatial Technologies
- Topographic Mapping