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 Our expertise
  • Spatial analysis and GIS
  • Spatial data integration and wrappers
  • Web-based interactive mapping
  • XML-based vector graphics
  • Markup languages and standards
  • Web services for spatial and survey data processing
  • Mapping on mobile devices
  • Online GIS within research portals
  • Novel GIS applications in medical informatics, digital brain atlases and atlas data integration
  • OLAP

See details on individual project pages.


/also see publications at project web sites/


  • Tarboton, D. G., J. S. Horsburgh, D. R. Maidment, T. Whiteaker, I. Zaslavsky, M. Piasecki, J. Goodall, D. Valentine and T. Whitenack, (2009), "Development of a Community Hydrologic Information System," 18th World IMACS Congress and MODSIM09 International Congress on Modelling and Simulation, ed. R. S. Anderssen, R. D. Braddock and L. T. H. Newham, Modelling and Simulation Society of Australia and New Zealand and International Association for Mathematics and Computers in Simulation, July 2009, p.988-994,
  • Horsburgh, J. S., D. G. Tarboton, M. Piasecki, D. R. Maidment, I. Zaslavsky, D. Valentine and T.Whitenack, (2009), "An integrated system for publishing environmental observations data," Environmental Modelling & Software, 24(8): 879-888,

  • Maidment, D. R., R. P. Hooper, D. G. Tarboton and I. Zaslavsky, (2009), "Accessing and Sharing Data Using CUAHSI Water Data Services," in Hydroinformatics in Hydrology, Hydrogeology and Water Resources, Edited by I. Cluckie, Y. Chen, V. Babovic, L. Konikow, A. Mynett, S. Demuth and D. A. Savic, Proceedings of Symposium JS4 held in Hyderabad, India, September 2009, IAHS Publ. 331, Hyderabad, India, p.213-223,

  • Maidment, D.R., I. Zaslavsky, D. Valentine, D.G. Tarboton, T. Whitenack, T. Whiteaker, R. Hooper, and D. Kirschtel , (2009), “A Services-Oriented Architecture for Water Observations Data”, EGU General Assembly 2009, Geophysical Research Abstracts, Vol. 11, 23 April 2009, EGU2009-6800-2.

  • Maidment, D. R., Zaslavsky, I., (2009), “Hydrologic Applications Using Geospatial Standards”, EGU 2009 Splinter Session SMP23, 22 April 2009, Presentation. [PPT|10MB]

  • Zaslavsky, I., D. Valentine, D. Maidment, D.G. Tarboton, T. Whiteaker, R. Hooper, D. Kirschtel, and M. Rodriguez, (2009), “The Evolution of the CUAHSI Water Markup Language (WaterML)”, EGU General Assembly 2009, Geophysical Research Abstracts, Vol. 11, 21 April 2009, EGU2009-6824-3.



  • Zaslavsky, I., D. Valentine and T. Whiteaker, (2007), “CUAHSI WaterML,” OGC 07-041r1, Open Geospatial Consortium Discussion Paper,
  • Valentine, D., I. Zaslavsky, (2007), “Web services and hydrologic observation data dissemination.” Conference Proceedings, 2007 ESRI International Users Conference.

  • Valentine, D., I. Zaslavsky, T. Whitenack, D.R. Maidment, (2007), “Design and implementation of CUAHSI WATERML and WaterOneFlow web services.” Geoinformatics 2007,

  • Zaslavsky, I., D. Valentine, D. R. Maidment (2007), “CUAHSI cyberinfrastructure for hydrologic sciences.” Geoinformatics 2007,

  • Whitenack, T., D. Valentine, I. Zaslavsky, D. Djokic (2007), “Hydrologic information system server: the software stack and the initial deployment experience.” Geoinformatics 2007,

  • Valentine, D., Zaslavsky, I., (2007), “Collaboration to develop Cyberinfrastructure for Hydrologic Sciences”, (2007). EOS Trans. AGU 88(23), Joint Assem. Supplement, Abstract IN31A-01.

  • Maidment D. R., Zaslavsky I., Valentine D., “WaterML: an XML Language for Communicating Water Observations Data”, (2007). Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H11K-04.

  • Beran, B., Valentine, D., Zaslavsky, I., van Ingen, C., “Lessons Learned from the Deployment of a Hydrologic Science Observations Data Model”, (2007). Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H13A-0978.

  • Zaslavsky, I., Rodriguez, M., Beran, B., Valentine, D.,van Ingen, C., “OLAP Cube Visualization of Hydrologic Data Catalogs”, (2007). Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H13H-1684.

  • Whitenack, T., Zaslavsky, I., Valentine, D., Djokic, D., “Data Access System for Hydrology”, (2007). Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H13H-1685.

  • Valentine, D., Zaslavsky, I., Whitenack, T., Maidment, D. R., “Design and implementation of CUAHSI WaterML and WaterOneFlow Web Services”, (2007). Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract IN53C-08.

  • Horsburgh, J. S., D. G. Tarboton, I. Zaslavsky, D. R. Maidment and D. Valentine, (2007), “Deployment and Evaluation of an Observations Data Model,” Eos Trans. AGU, 88(52): Fall Meet. Suppl., Abstract H11K-05.







2000 and earlier