Ashton Myles Shortridge

 

National Center for Geographic Information and Analysis

Department of Geography

Santa Barbara, CA 93106-4060

tel: (805) 893-8652    fax: (805) 893-8617

http://www.ncgia.ucsb.edu/~ashton/

ashton@geog.ucsb.edu

 

 

 

Education

 

Ph.D. – Geography, University of California, Santa Barbara, expected Winter 2001

Dissertation title: Topics on Uncertainty in Geographic Information Science

 

M.A. - Geography, University of California, Santa Barbara, 1997

Thesis title: Modeling the Relationship Between 7.5' & 1 Degree DEMs

 

B.A. - College of Arts and Sciences, Indiana University, Bloomington, 1991

Major: Economics;    Minors: Geography,  Political Science,  German

 

 

Research Activities

 

Uncertainty in spatial data and spatial applications

Terrain modeling and analysis

Geometric probability and GIS

 

 

Research Projects

 

1994-present: Graduate Student Researcher, National Center for Geographic Information and Analysis.

Tasks included:

§        performing basic research

§        developing and writing academic papers

§        presenting papers at international conferences and NCGIA meetings

§        providing technical and logistical conference support

 

Specific initiatives and collaborations include:

§        Varenius Project

§        Uncertainty in Geospatial Information Initiative

§        National Center for Ecological Analysis and Synthesis

§        NCGIA I-15: Multiple roles for GIS in US global change research

 

 

Peer-Reviewed Publications and Book Chapters

 

A. M. Shortridge and M. F. Goodchild (2000) Geometric probability and GIS: some applications for the statistics of intersections, in review.

 

A. M. Shortridge (2000) Characterizing uncertainty in digital elevation models. Ch. 11 in Spatial Uncertainty for Ecology. C. Hunsaker, M. Goodchild, M. Friedl, and T. J. Case, Eds. Springer-Verlag: New York. in press.

 

A. M. Shortridge and K. C. Clarke (1999) On some limitations of square raster cell structures for digital elevation data modeling. in Spatial Accuracy Assessment: Land Information Uncertainty in Natural Resources, K. Lowell and A. Jaton (Editors). Ann Arbor Press: Ann Arbor, Michigan.

 

M. F. Goodchild, A. M. Shortridge and P. Fohl (1999) Encapsulating simulation models with geospatial data sets. in Spatial Accuracy Assessment: Land Information Uncertainty in Natural Resources, K. Lowell and A. Jaton (Editors). Ann Arbor Press: Ann Arbor, Michigan.

 

P. C. Kyriakidis, A. M. Shortridge, M. F. Goodchild (1999) Geostatistics for conflation and accuracy assessment of digital elevation models. Int. J. Geographical Information Science, 13(7): 677-707.

 

C. R. Ehlschlaeger, A. M. Shortridge and M. F. Goodchild (1997) Visualizing spatial data uncertainty using animation. Computers & GeoSciences, 23(4): 387-395.

 

C. R. Ehlschlaeger and A. M. Shortridge (1996) Modeling elevation uncertainty in geographical analysis. In Advances in GIS Research II:  Proceedings, 7th SDH. M.J. Kraak, M. Molenaar, Eds. Taylor & Francis: London. 585-595.

 

 

 

Conference Papers & Presentations

 

A. M. Shortridge and M. F. Goodchild (2000) Tile intersection probabilities for lines and areas in GIS.  4th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Amsterdam.

 

A. M. Shortridge (2000) Finding a (Buffon’s) needle in a hierarchical triangular haystack. International Conference on Discrete Global Grids, Santa Barbara, CA.

 

A. M. Shortridge (1999) Characterizing uncertainty in elevation data: applications for environmental modeling. University of Southern California Geography colloquium series. Los Angeles.

 

A. M. Shortridge and M. F. Goodchild (1999) Communicating uncertainty for global datasets. International Symposium on Spatial Data Quality, Hong Kong. pp. 59-65.

 

A. M. Shortridge and M. F. Goodchild (1999) A turn-key approach to modeling spatial data uncertainty. 95th AAG  Meeting, Honolulu.

 

A. M. Shortridge (1998) Characterizing spatial data uncertainty in GIS. Varenius/NCGIA Annual Meeting, Orono, Maine.

 

A. M. Shortridge (1998) Characterizing the relationship between 7.5’ and 1 degree digital elevation models. Presentation to the UC Santa Barbara Geography colloquium series.

 

W. Orr, H. Johnson and A. M. Shortridge (1998) Visualizing Climate Change Impacts at the Local Level: A California Case Study. California Regional Climate Change: California Regional Assessment, Santa Barbara, CA.

 

A. M. Shortridge (1997) A framework for modeling spatial data uncertainty. Presentation to the Santa Barbara NIMA Review Meeting.

 

B. P. Buttenfield, K. Kemp, N. Chrisman and A. M. Shortridge (1997) The virtual seminar: experiences from a web-based graduate course in geographic information science. 93rd AAG Meeting, Fort Worth.

 

 

Other Publications

 

A. M. Shortridge (1998) UNIT 43: Using derivative surface operators. In V. Gray, Editor, GIS Core Curriculum for Technical Programs. http://www.ncgia.ucsb.edu/education/curricula/cctp/

 

C. Kiedman and A. Shortridge (1998) GIS: Do you know where your errors are? EMIS Tech 2(1)

 

A. M. Shortridge (1995) Multiple roles for GIS in US global change research: annotated bibliography. NCGIA Technical Report 95-3. NCGIA, Santa Barbara, 22 pp.

 

W.B. Rossow, M.H. Freilich, V. Griffin, D. Halpern, S. Levitas, P. Sellers, D. Shea, A. Shortridge and  S. Worley (1995). Persistent information production for research. In D. Butler and J. E. Estes, Editors, Proceedings of the EOSDIS Potential User Group Development Effort Conference, Leesburg, VA, NASA, 5.1-5.12.

 

 

Teaching Experience

 

Geography 274 – Spatial Statistics. Reader and Teaching Assistant, 1996, 1997, 1998, 1999.

Geography 176b – Technical Issues in GIS.  Guest lecturer, 1999.

 

 

Conference Logistical, Technical, and Rapporteural Support

 

USGS (1997) The Land Use Modeling Workshop. Sioux Falls, SD.

 

NCGIA (1997) Varenius Project Committee Meeting. Santa Barbara, CA.

 

NCEAS (1997) Uncertainty in Spatial Data for Ecological Applications. Santa Barbara, CA.

 

United Nations (1996) Interregional Seminar of Global Mapping for the Implementation of Multinational Environmental Agreements. Santa Barbara, CA.

 

NCGIA (1996) I-15 Second Specialist Meeting. Santa Fe, NM.

 

NCGIA (1996) Third International Conference/Workshop on Integrating GIS and Environmental Modeling. Santa Fe, NM.

 

NASA (1995) EOSDIS Potential User Group Development Effort Conference. Leesburg, VA.

 

NCGIA (1995) Multiple Roles for GIS in U.S. Global Change Research. Santa Barbara, CA.

 

 

Work Experience

 

Sept. 1994-Present: NCGIA, Santa Barbara, California

Graduate Student Researcher - Spatial Data and GIS Research, Conference

Planning and Support

 

July 1993 - Aug. 1994: Indiana Vocational Technical College, Bloomington, Indiana

Computer Skills Instructor, Course Material Developer

 

Jan. 1992 - June 1992: Geospace GmbH, Bonn, Germany

Computer Mapping, GIS Applications Programming, Training

 

May 1991 - Dec. 1991: City of Indianapolis

Geographic Information Systems Technician - Public Works Engineering