Phone: (512) 869-1450
Electronic Navigation, Precise Positioning, and Geographic Information Systems Research and Development
Presentations at Conferences, Colloquia, and Symposia
March 14, 2012. Supporting Research with GIS: Reconstructing a Greek Past in Italy and Constructing a Garifuna Future in Honduras. Swarthmore College, Tri-College Environmental Studies Program.
June 1, 2011. Participatory Mapping Methods: Review and Suggestion. Foro Internacional, Cartografía Participativa y Derechos al Territorio y los Recursos. Universidad de Los Andes. Bogotá, Colombia. 1-2 June, 2011.
April 10, 2010. Participatory Mapping by Indigenous People of Central America. People, Power, and Maps: Texas Map Society Spring Meeting, Austin, TX.
March 24, 2010. Lessons Learned from Participatory Mapping in Central America. Global Environmental Speaker Series. University of Richmond. Richmond, VA.
April 7, 2009. Archaeological Spatial Analysis with Geographic Information Systems. Landscape Archaeology Seminar, Department of Classics, University of Texas at Austin.
May 7, 2008. GIS in the Liberal Arts. Workshop Presentation, Southwestern University, Georgetown, Texas.
May 3, 2007. Discrete Global Grids and the U.S. National Grid in GIS Teaching and Research. Mapping Science Committee. The National Academies. Washington, DC.
March 10, 2006. (with Malcolm Cutchin and Jim Stimpson) Conceptualizing and Using Neighborhoods for the Analysis of Health and Place. The Association of American Geographers, 102nd Annual Meeting, Chicago, Illinois.
March 09, 2006. Space-Claiming Categories for Community Mapping. The Association of American Geographers, 102nd Annual Meeting, Chicago, Illinois.
March 02, 2006. Whose Lands These Are: (You think you know?). Center for Northern Studies, Sterling College, Wolcott, Vermont.
November 2, 2005. Field Survey Techniques and GIS Analysis of Early Greek Settlements in Southern Italy. Department of Geography Colloquium. Middlebury College, Middlebury, Vermont.
April 5, 2005. Estimating Early Greek Settlement Patterns in Southern Italy from Ceramic Evidence. The Association of American Geographers, 101st Annual Meeting, Denver, Colorado.
October 15, 2004. Estimating Early Greek Farm Significance Patterns in Southern Italy Using Multiple-Criteria Evaluation and Cost-Weighted Surfaces. Colloquium. Department of Geography Colloquia Series. University of Texas at Austin.
March 7, 2003. Toward a Participatory Mapping Methodology: Lessons from Honduras and Nicaragua. The Association of American Geographers, 99th Annual Meeting, New Orleans, LA.
October 25, 2002. Participatory Land-Boundary and Land-Use Mapping: Lessons from the Mosquitia and North Coast of Honduras in 2002. Colloquium. Department of Geography Colloquia Series. University of Texas at Austin.
April, 19, 2002. Replacing Form with Function: Land-Use Categorization Based on Local Knowledge and Ground Truth. Research Action Roundtable. GPS Mapping of Land-Use Areas in Awas Tingni: Technical, Political, And Legal Considerations. From Human Rights to Cultural Empowerment: The Awas Tingni Ruling and the Struggle for Indigenous & Black Land Right in the Americas. April 18-20, 2002. University of Texas at Austin School of Law.
February 28, 2001. Between the Points: What Path, What Distance? The Association of American Geographers, 97th Annual Meeting, New York, City, New York.
January 7, 2000. Mapping Community Boundaries on Nicaragua’s Caribbean Coast. Panel on Maps, Mapping, and Indigenous Peoples. Conference of Latin Americanist Geographers. 2000 Meeting, Austin, Texas.
January 13, 1999. Workshop. Appropriate GPS Methods for GIS Applications. 1999 GIS Forum and Training Conference. Texas Natural Resources Information System. Austin, Texas.
March 26, 1998. Preliminary Mapping of Community Boundaries with GPS. The Association of American Geographers 94th Annual Meeting, Boston, Massachusetts.
March 5, 1998. GPS: Positioning Techniques and Time and Frequency Dissemination. Tecnología Sin Límite: XIII Simposium Internacional De Electrónica y Comunicaciones. ITESM, Monterrey, Mexico.
February 20, 1998. Matching GPS Methods to Applications. Hydrogeology Brownbag Seminar. Department of Geology, University of Texas at Austin.
December 15-19, 1997. Workshops. GIS and GPS for Surveying Applications. BTW Associates, Ltd., New Plymouth, New Zealand.
November 12, 1997. Workshop. Appropriate GPS Methods for GIS Applications. 1997 Texas GIS Forum. Texas Natural Resources Information System and the Texas Department of Information Resources, Austin, Texas.
May 9, 1997. GPS Time Dissemination Austin Astronomical Society Monthly Meeting, Austin, Texas.
October 21, 1996. GPS for Transportation Research. Aviation Research Center, University of Texas at Austin.
October 16, 1996. GPS for Time and Frequency Dissemination. Physics Department Colloquium, University of Texas at Austin.
May 4, 1966. An Overview of GPS. Saturday Physics Workshop. Department of Physics, University of Texas at Austin.
August 23, 1994. Greytown to Graytown, Walker to Walker: Symbols of U. S. Intervention in Central America. Survey course in Central America, University of Central Texas, Killeen, Texas.
October 21, 1993. Geographic Information System Loran-C Coverage Modeling. Wild Goose Association's Twenty-Second Annual Technical Symposium, Santa Barbara, California.
October 26, 1992. Introduction to the Global Positioning System. Texas Geographic Information Systems Forum, Co-sponsored by the Department of Information Resources and Texas Natural Resources Information System, Austin, Texas.
October 24, 1990. The Raymondville Ghost: Loran-C Signal Reflections. The Wild Goose Association's Nineteenth Annual Technical Symposium, Long Beach, California.
October 4, 1990. Automated Animal Tracking System Map Display. The 1990 Annual Meeting of the Southwest Division, Association of American Geographers, Austin, Texas.
October 30, 1989. Automated Animal-Tracking System: Tracking Elk with Retransmitted Loran-C. The Wild Goose Association's Eighteenth Annual Technical Symposium, Hyannis, Massachusetts.