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Geo 507 Virtual Seminar in Geographic Information Science Mondays, 3:00-3:50 p.m. Wilkinson 127 1 credit Geographic Information Science (GISci) Integrates and advances technology from… • geographic information systems (GIS) • • • • • automated mapping, web mapping remote sensing global positioning systems distributed computing mobile computing Remote Sensing New high-res satellite imagery will enable us to measure, in even greater detail, physical phenomena that change continuously over time and large areas. Image courtesy of Rutgers U. - 1999 UCGIS Congressional Breakfast Mobile and field computing impacts both how we collect geospatial data…and how we use data in the field... Image courtesy of Rutgers U. - 1999 UCGIS Congressional Breakfast Robotic vehicles for data collection in the field - on land... Image courtesy of Rutgers U. - 1999 UCGIS Congressional Breakfast … and at sea • on the order of tens of meters to meters • features the size of a beer can! Distributed computing is changing how we enter, manage and use spatial information ... Image courtesy of Rutgers U. - 1999 UCGIS Congressional Breakfast Map Servers - “Web GIS” Urban planners use 3-D analysis to evaluate urban land use ... Image courtesy of Rutgers U. - 1999 UCGIS Congressional Breakfast and to recommend continuous green space strategies... Image courtesy of Rutgers U. - 1999 UCGIS Congressional Breakfast GISci Parsed • Geographic: having to do with the surface of the Earth (and the near-surface) • Geographic information: – composed of primitive tuples <l,a> where l is a location in space-time and a is some general property, class, measurement, feature, person, structure… – <,a> where is some region whose definition is widely known – information --> spatial dependences and cross-dependences GISci (2) • The science behind the systems • Fundamental issues arising from the systems • The science that is done with the technology • Systematic study of geographic information using scientific methods GISci (3) • The digital transition – practices, arrangements, institutions developed in the paper map era must now respond to the massive shift to digital representation and handling – e.g., the Flat Earth Society – the horseless carriage Discovery • Does discovery mean being there at all? – there is no more geography • Hollywood and the Internet can take you there • “Digital Earth” – a “camera” pointed at a sunlit Earth – a virtual, immersive world Building the Digital Earth • Access to data – what is available about this place • Tools for visualization – 4-5 orders of magnitude of zoom – user-centered – beyond the visible – analysis, modeling, simulation Research Challenges • Representation – – – – infinite complexity in the real world spatio-temporal continuity, dynamism an infinity of themes must be useful, efficient • The digital computer – finite capacity – binary alphabet “To find ways to express the infinite complexity of the geographical world in the binary alphabet and limited capacity of a digital computer” Research Challenges ... • Uncertainty – no representation can be complete – what the data indicate about the world – what the user believes the data indicate about the world • Simulation “To find ways of summarizing, modeling, and visualizing the differences between a digital representation and real phenomena” Research Challenges ... • Cognition – Human perceptions of space • GIS technology – learned in Upper Division or Graduate School – the “Spatially Aware Professional” “To achieve smooth transition between cognitive and computational representations and manipulations of geographic information” UCGIS - www.ucgis.org University Consortium for Geographic Information Science – research the issues that emerge from the use of the technology - in areas such as scale, accuracy, representation – evaluate, reflect on, work to improve the technology – work to improve GIS practice ~70 institutions, govt., industry UCGIS - www.ucgis.org • science motivated by practice, observation, practical need • national consensus about the nature of that science • Cross-disciplinary linkages www.geo.orst.edu/ucgis geography.uoregon.edu/gis/ucgis/ UCGIS Research Priorities • Cognition • Extensions to representation • Acquisition and integration • Distributed and mobile computing • Interoperability • • • • Scale Uncertainty Spatial analysis Future of the spatial information infrastructure • GIS and society New UCGIS Themes • • • • • • Data Mining & Knowledge Discovery Visualization Remotely-Acquired Data Geospatial Ontology Analytical Cartography 25 additional “short-term” challenges UCGIS Education Priorities • DISTANCE EDUCATION – 1996 Virtual Seminar (UCSB) – 1998 Virtual Seminar (OSU) • Emerging Technologies • “MODEL CURRICULUM” • Accreditation and Certification • Supporting Infrastructure • Access and Equity • Professional Education • Alternative Curricular Design • Graduate GIS Education • Learning with GIS Syllabus, Assignments