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Presentations

Upcoming Events

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Howes, D.A. 2025. Introduction to Python Programming. One-day workshop to be conducted online in two half-day parts on Monday, February 24^th and Tuesday, February 25^th in association with the Northwest GIS User Group.
Howes, D.A. 2025. Introduction to ArcGIS Pro Python Tools and Processes Development. One-day workshop to be conducted online in two half-day parts on Thursday, February 27^th and Friday, February 28^th in association with the Northwest GIS User Group.

Presentations and Sessions

Howes, D.A. 2024. ArcGIS Experience Builder Widget Development: A Guide for the GIS Layperson. Collaboration session conducted online as part of the Willamette Valley GIS Users Group Fall 2024 Quarterly Meeting, Corvallis, Oregon, USA
Howes, D.A. 2024. ArcGIS Experience Builder Widget Development: A Quick Guide for the GIS Layperson. Collaboration session conducted online for the November 2024 Idaho TECH Talk meeting, Pocatello, Idaho, USA
Howes, D.A., VanderPas, A., Jacobus, D., Montgomery, G., Jenkins, S., Wheatley, M., Kasparek, K., Wing, E., Glassley, J., Mowbray, A., Potts, J., Reed, R., and Pappin, N. 2024. The Lone GIS Professional: Experiences, Challenges, and Requirements. Collaboration session conducted as part of Northwest GIS 2024, Seaside, Oregon, USA
Howes, D.A., VanderPas, A., Jacobus, D., Montgomery, G., Jenkins, S., Wheatley, M., Kasparek, K., Wing, E., Glassley, J., Mowbray, A., Potts, J., Reed, R., and Pappin, N. 2024. Things Worth Knowing. Collaboration session conducted as part of Northwest GIS 2024, Seaside, Oregon, USA
Howes, D.A. 2024. Paranoid Programming: Helpful Guidance for ArcGIS Pro Python Tools and Processes Development. Collaboration session conducted as part of Northwest GIS 2024, Seaside, Oregon, USA
Howes, D.A. 2024. ArcGIS Experience Builder Development Considerations. Collaboration session conducted online for the Alaska Arc User Group June 2024 Monthly Meeting
Howes, D.A., VanderPas, A., Robertson, W., and Ames, L. 2024. Finding Your Way: Approaching GIS from Different Directions. Collaboration session conducted as part of the 2024 Intermountain GIS Conference, Post Falls, Idaho, USA
Howes, D.A. 2024. ArcGIS Experience Builder Development Considerations. Collaboration session conducted as part of the 2024 Intermountain GIS Conference, Post Falls, Idaho, USA
Howes, D.A., Jacobus, D., and Paul, A. 2024. ArcGIS Experience Builder Development Considerations. Collaboration session conducted as part of GIS In Action 2024, Portland, Oregon, USA
Howes, D.A. 2024. ArcGIS Experience Builder Development Considerations. Collaboration session conducted as part of Big Sky GeoCon 2024, Billings, Montana, USA
Howes, D.A., Fashoway, E., Macholz, L., Kohley, T., Vaughn, A., and Powell, M. 2024. Wisdom, Guidance, and Inspiration from the World of the GIS Coordinator. Collaboration session conducted as part of Big Sky GeoCon 2024, Billings, Montana, USA
Howes, D.A. 2024. ArcGIS Experience Builder Development Considerations. Collaboration session conducted as part of the Willamette Valley GIS Users Group Winter 2024 Quarterly Meeting, Eugene, Oregon, USA
Howes, D.A. 2023. ArcGIS Experience Builder: No Widget Required. Presentation given as part of the Washington State 12th Annual Joint Agency GIS Day, Olympia, Washington, USA
Howes, D.A. 2023. ArcGIS Experience Builder: Widget or Not?. Collaboration session conducted as part of Northwest GIS 2023, Yakima, Washington, USA
Howes, D.A. 2023. Guidance for ArcGIS Pro Tools and Processes Development. Collaboration session conducted as part of Northwest GIS 2023, Yakima, Washington, USA
Howes, D.A. 2023. ArcGIS Pro Add-Ins: Characteristics and Development Considerations. Collaboration session conducted as part of Northwest GIS 2023, Yakima, Washington, USA
Howes, D.A. 2023. The Value of Respectful ArcGIS Pro Add-In Development. Collaboration session conducted as part of the Willamette Valley GIS Users Group Spring 2023 Quarterly Meeting, Albany, Oregon, USA
Howes, D.A., Bailey, J., Haggen, R, Colpitt, J., and Webster, D. 2023. The Ups and Downs of Being a GIS Analyst. Collaboration session conducted as part of GIS In Action 2023, Portland, Oregon, USA
Howes, D.A. 2023. Guidance for ArcGIS Pro Tools and Processes Development. Collaboration session conducted as part of GIS In Action 2023, Portland, Oregon, USA
Howes, D.A. 2023. Guidance for ArcGIS Pro Tools and Processes Development. Collaboration session conducted as part of Big Sky GeoCon 2023, Bozeman, Montana, USA
Howes, D.A., Ketner, K., Raznoff, S., and Wall, K. 2023. The Importance of Coding for GIS. Collaboration session conducted as part of Big Sky GeoCon 2023, Bozeman, Montana, USA
Howes, D.A. 2022. ArcGIS Pro Add-In Development: An Introduction for the GIS Layperson. Collaboration session conducted at URISA GIS-Pro & NWGIS 2022, Boise, Idaho, USA
Howes, D.A. 2022. The Value of Modern and Respectful Coding: A Guide for the GIS Layperson. Collaboration session conducted online as part of GIS In Action 2022, Portland, Oregon, USA
Howes, D.A., Montgomery, G., Radcliff, J., and Kauhi, T. 2022. >A Guide to Managing Application Updates for the Mere Mortal<. Collaboration session conducted online as part of GIS In Action 2022, Portland, Oregon, USA
Howes, D.A., Montgomery, G., and Jacobus, D. 2022. ArcGIS Pro SDK for .NET Development Considerations. Collaboration session conducted online as part of GIS In Action 2022, Portland, Oregon, USA
Howes, D.A. 2021. The Value of Modern and Respectful Coding: A Guide for the GIS Layperson. Collaboration session conducted online as part of Washington State Joint Agency GIS Week
Howes, D.A., Montgomery, G., Radcliff, J., and Kauhi, T. 2021. Yours to Make: Building Your Success as a GIS Professional. Collaboration session conducted online as part of Northwest GIS 2021
Howes, D.A., Sharrard, J., McAvoy, E., and Jacobus, D. 2021. ArcGIS Pro: Adapting to the Modern GIS World. Collaboration session conducted online as part of Northwest GIS 2021
Howes, D.A. 2021. It's Time to Move On: A Persuasive Case for Transitioning from ArcGIS Desktop to ArcGIS Pro. Collaboration session conducted online for the Alaska Arc User Group June 2021 Monthly Meeting
Howes, D.A. 2021. It's Time to Move On: A Persuasive Case for Transitioning from ArcGIS Desktop to ArcGIS Pro. Collaboration session conducted online as part of the 2021 Washington GIS Conference
Howes, D.A., Sharrard, J., McAvoy, E., and Jacobus, D. 2021. ArcGIS Experience Builder: Development, Implementation, and Associated Considerations. Collaboration session conducted online as part of the 2021 Washington GIS Conference
Howes, D.A. 2021. It's Time to Move On: A Persuasive Case for Transitioning from ArcGIS Desktop to ArcGIS Pro. Collaboration session conducted online as part of the Intermountain GIS 2021 Conference
Howes, D.A., McAvoy, E., Sharrard, J., and Cunningham, J. 2021. ArcGIS Experience Builder: Development, Implementation, and Associated Considerations. Collaboration session conducted online as part of the Intermountain GIS 2021 Conference
Howes, D.A., McAvoy, E., Sharrard, J., and Ruffing, J. 2021. ArcGIS Experience Builder: Development, Implementation, and Associated Considerations. Collaboration session conducted online as part of GIS In Action 2021
Howes, D.A. and McAvoy, E. 2021. ArcGIS Experience Builder: Development, Implementation, and Associated Considerations. Collaboration session conducted online as part of the 2021 Alaska Virtual Geospatial Gathering
Howes, D.A. 2020. ArcGIS Experience Builder Widget Development. Demonstration supporting John Sharrard, Solutions Engineer, Esri at MAGIP Mini GeoCon 2020
Howes, D.A. 2020. ArcGIS Experience Builder Widget Development: An Introduction for the GIS Layperson. Presentation given online as part of Northwest GIS 2020
Howes, D.A. 2020. ArcGIS Pro Add-In Development: An Introduction for the GIS Layperson. Presentation given online as part of Northwest GIS 2020
Howes, D.A. 2020. Securing Related ArcGIS Online Data by Owner to Support Reporting Via a Custom Web AppBuilder for ArcGIS Widget. Presentation given online as part of Northwest GIS 2020
Howes, D.A. 2019. ArcGIS Pro Add-ins: An Introduction for the GIS Layperson. Collaboration session conducted at Northwest GIS 2019, Bend, Oregon, USA
Howes, D.A. and Falkner, A. 2019. Models, Scripts, and Consultants: Guidance for Ensuring Successful Geoprocessing Outcomes. Collaboration session conducted at Northwest GIS 2019, Bend, Oregon, USA
Howes, D.A. and Sant, E. 2019. Python Geoprocessing for Rangeland Management: Guidance for Developing Efficient Tools and Processes. Presentation given at Northwest GIS 2019, Bend, Oregon, USA
Howes, D.A. and Falkner, A. 2019. Models, Scripts, and Consultants: Guidance for Ensuring Successful Geoprocessing Outcomes. Presentation given at the 2019 Washington GIS Conference, Tacoma, Washington, USA
Howes, D.A. and Falkner, A. 2019. Models, Scripts, and Consultants: Guidance for Ensuring Successful Geoprocessing Outcomes. Presentation at GIS In Action 2019, Portland, Oregon, USA
Howes, D.A. 2018. Guidance for Web AppBuilder Widget Development. Presentation given at Northwest GIS 2018, Bremerton, Washington, USA
Howes, D.A. 2018. Guidance for Web AppBuilder Widget Development.. Presentation given at the 2018 Washington GIS Conference, Olympia, Washington, USA
Howes, D.A. and McAvoy, E. 2018. Guidance for Web AppBuilder Widget Development. Presentation at GIS In Action 2018, Portland, Oregon, USA
Howes, D.A. and Sant, E. 2017. >Parallelizing a Python Geoprocessing Tool. Lightning talk at the 2017 Northwest GIS Conference, Boise, Idaho, USA
Howes, D.A. 2017. The Art of the Helpful Lightning Talk. Lightning talk at the 2017 Northwest GIS Conference, Boise, Idaho, USA
Howes, D.A. 2017. Guidance for Web AppBuilder Widget Development. Presentation at the 2017 Northwest GIS Conference, Boise, Idaho, USA
Howes, D.A. 2017. The Art of the Helpful Lightning Talk. Lightning talk at the June 13^th Esri GeoDev Meetup, Boise, Idaho, USA
Howes, D.A. 2017. Building Web AppBuilder Widgets. Lightning talk at the June 13^th Esri GeoDev Meetup, Boise, Idaho, USA
Howes, D.A. 2017. The Value of Coding for GIS. Presentation given to the University of Washington Master of Geographic Information Systems GIS Programming class (Geog 565), Seattle, Washington, USA
Howes, D.A. 2017. Building Web AppBuilder Widgets. Lightning talk at the June 13^th Esri GeoDev Meetup, Seattle, Washington, USA
Howes, D.A. 2016. The Value of Coding for GIS. Presentation given to the University of Washington Master of Geographic Information Systems GIS Programming class (Geog 565), Seattle, Washington, USA
Howes, D.A. 2016. Integrating Microsoft Office 365 and ArcGIS: Developing Skills for the Modern GIS Age. Presentation at the 2016 Washington GIS Conference, Tacoma, Washington, USA
Howes, D.A., Paul, A., Berry, J. and Eklund, J. 2016. GISPD.com: GIS Professional Development Perspectives. Session at the 2016 Washington GIS Conference, Tacoma, Washington, USA
Howes, D.A. 2016. Integrating Office 365 and ArcGIS. Lightning talk at the February 17^th Esri GeoDev Meetup, Anchorage, Alaska, USA
Howes, D.A., Southwould, A., Lilly, T. and Duncan, T. 2016. The Art of the Helpful GIS Presentation . Session conducted at Alaska GIS Professional Development Day as part of the 50^th Annual Alaska Surveying & Mapping Conference, Anchorage, Alaska, USA
Howes, D.A. et al. 2016. Alaska GIS Professional Development Day. One-day event conducted at the 50^th Annual Alaska Surveying & Mapping Conference, Anchorage, Alaska, USA
Howes, D.A. 2015. Integrating Office 365 and ArcGIS. Presentation at the Washington State Joint Agency GIS Day - 2015, Olympia, Washington, USA
Howes, D.A. 2015. Integrating ArcGIS Geoprocessing and Mapping Capabilities into Office 365. Lightning talk at the November 9^th Esri GeoDev Meetup, Seattle, Washington, USA
Paul, A., Wallis, D., Bonds Jr., R. and Howes, D.A. 2015. Adapting to the Evolving GIS World. Session conducted at URISA GIS-Pro & NWGIS 2015, Spokane, Washington, USA
Howes, D.A., Berry, J., Paul, A., Goldenberg, E. and Gardner, S. 2015. The Value of Coding for GIS. Session conducted at URISA GIS-Pro & NWGIS 2015, Spokane, Washington, USA
Howes, D.A., Sant, E. and Pardy, J. 2015. Integrating ArcGIS Geoprocessing and Mapping Capabilities into Office 365. Presented at URISA GIS-Pro & NWGIS 2015, Spokane, Washington, USA
Howes, D.A. 2015. The Value of Coding for GIS. Presentation given to the University of Washington Master of Geographic Information Systems GIS Programming class (Geog 565), Seattle, Washington, USA
Beimborn, S., Sellsted, T., Berry, J. and Howes, D.A. 2015. Big GIS Shop vs. Little GIS Shop. Collaboration session conducted at Eastern Washington GISPD Day, Ellensburg, Washington, USA
Howes, D.A. and Sant, E. 2015. Parallelizing a Python Geoprocessing Tool. Lightning talk at Eastern Washington GISPD Day, Ellensburg, Washington, USA
Paul, A. and Howes, D.A. 2015. Adapting to the Evolving GIS World. Collaboration session conducted at Eastern Washington GISPD Day, Ellensburg, Washington, USA
Paul, A., Howes, D.A., Wallis, D., Markert, J., Deaver, B. and Brown, B. 2015. Adapting to the Evolving GIS World. Session conducted at GIS In Action 2015, Vancouver, Washington, USA
Howes, D.A. and Sant, E. 2015. Parallelizing a Python Geoprocessing Tool. Lightning talk at the April 8^th Esri GeoDev Meetup, Seattle, Washington, USA
Howes, D.A. 2015. Extending Data-Driven Pages with .NET and ArcObjects. Lightning talk at the April 8^th Esri GeoDev Meetup, Seattle, Washington, USA
Howes, D.A. on behalf of Pardy J. 2015. Python Performance Tips. Lightning talk at the April 8^th Esri GeoDev Meetup, Seattle, Washington, USA
Howes, D.A. 2015. Species Protection Area Development with .NET. Lightning talk at the April 8^th Esri GeoDev Meetup, Seattle, Washington, USA
Howes, D.A. 2015. Species Protection Area Development with .NET. Lightning talk at the February 19^th Esri GeoDev Meetup, Anchorage, Alaska, USA
Howes, D.A. 2015. Extending Data-Driven Pages with .NET and ArcObjects. Lightning talk at the February 19^th Esri GeoDev Meetup, Anchorage, Alaska, USA
Howes, D.A., Knapp, M., Johnson, A., Anderson, R. and Norton, S. 2015. The (not so) Secret (but very necessary) Skills of GIS Professionals. Session at the 49^th Annual Alaska Surveying & Mapping Conference, Anchorage, Alaska, USA
Howes, D.A. 2015. The Value of Coding for GIS. Presentation at the 49^th Annual Alaska Surveying & Mapping Conference, Anchorage, Alaska, USA
Howes, D.A., Pardy, J. and Stevenson, M. 2015. Treading Into Open Source GIS. Presentation at the 49^th Annual Alaska Surveying & Mapping Conference, Anchorage, Alaska, USA
Howes, D.A. 2015. The Value of Coding for GIS. Presentation at the February 4^th King County GIS User Group meeting, Seattle, Washington, USA
Howes, D.A. and Stevenson, M. 2014. Explorations into Open Source GIS. Presentation at the 2014 Washington State Joint Agency GIS Day, Olympia, Washington, USA
Howes, D.A. and Pardy, J. 2014. Extending ArcGIS for Desktop: Python and .NET Add-Ins in a Nutshell (abstract). Session at the 2014 Northwest GIS Conference, Lynnwood, Washington, USA
Howes, D.A. and Stevenson, M. 2014. Opening the Door to Open Source GIS (abstract). Session at the 2014 Northwest GIS Conference, Lynnwood, Washington, USA
Howes, D.A. 2014. How Good are Your Data and Analyses? Communicating Quality. Part 3 of 3: AnalysisPresentation at the 2014 Washington GIS Conference, Tacoma, Washington, USA
Howes, D.A., Eklund, J., Owen, C., Radcliff, J., Stull, M. and Wallis, D. 2014. They’ll Stone You When You’re Trying to Build Your GIS: The Multidimensional Role of the GIS Coordinator. Session at the 2014 Washington GIS Conference, Tacoma, Washington, USA
Behee, C., Howes, D.A., Walker, C., Roeckers, G., Joselyn, M. and Dewland, T. 2014. The GIS Analyst as an Institutional Resource. Session at the 2014 Washington GIS Conference, Tacoma, Washington, USA
Sevier, M., Howes, D.A. and Markert, J. 2014. Independent GIS Professional Networking and Business Building. Session at the 2014 Washington GIS Conference, Tacoma, Washington, USA
Howes, D.A. 2014. Species Protection Area Development with .NET. Presentation at the January 14^th Esri GeoDev Meetup, Seattle, Washington, USA
Howes, D.A. 2013. Using .NET for ArcGIS Map & Data Development. Presentation at the 2013 State GIS Day, Olympia, Washington, USA
Howes, D.A. 2013. .NET Add-Ins for ArcGIS Map & Data Development. Presentation at the 2013 Northwest GIS Conference, Sunriver, Oregon, USA
Howes, D.A. 2013. Species Protection Area Development with .NET. Lightning talk at the October 16^th Esri GeoDev Meetup, Sunriver, Oregon, USA
Howes, D.A. 2013. Beyond Data-Driven Pages: .NET-Based Map Series Development. Presentation at the 2013 Washington GIS Conference, Lynnwood, Washington, USA
Howes, D.A., Stevenson, M., Savelle, M. and Vennemann, K. 2013. The Lone GIS Professional: Running Your Own GIS Business. Session conducted at 2013 Washington GIS Conference, Lynnwood, Washington, USA
Howes, D.A. 2011. Development Considerations for ArcGIS Desktop Add-Ins. Presentation at the 2011 Washington GIS Conference, Lynnwood, Washington, USA
Howes, D.A. 2009. Supporting the Lone GIS Professional. Session at the 2009 Esri International User Conference, San Diego, California, USA
Howes, D.A. 2009. As Many Maps as You Need: The Power of Automated Map Generation. Presentation at the 2009 Washington GIS Conference, Bellevue, Washington, USA
Howes, D.A., Peterson, G., Stevenson, M. and Edlund, E, 2009. Supporting The Lone GIS Professional. Session at the 2009 Washington GIS Conference, Bellevue, Washington, USA
Howes, D.A. 2009. Supporting the Lone GIS Professional Special Interest Group Meeting. Session at the 2009 Esri Developer Summit, Palm Springs, California, USA
Howes, D.A. and Giddings, J.M. 2008. ArcObjects-Based Species Risk Assessment Using National Hydrography/Land Cover Datasets. Presentation at the 2008 Esri International User Conference, San Diego, California, USA
Howes, D.A., Benson, J. and Bailey, A. 2008. Supporting the Lone GIS Professional: The Concept and Rationale. Session at the 2008 Washington GIS Conference, Seattle, Washington, USA
Howes, D.A. 2008. The Value of Automation: Geoprocessing with .NET and ArcObjects. Presentation at the 2008 Washington GIS Conference, Seattle, Washington, USA
Howes, D.A., Giddings, J.M. and McGaughey, B.D. 2007. Action Area Definition for a Pesticide Endangered Species Assessment Using Exposure Factors Based on Flow Accumulation. Poster Presentation at the SETAC 28^th Annual Meeting in North America, Milwaukee, Wisconsin, USA
Howes, D.A. and Giddings, J.M. 2007. An ArcObjects-Based Approach for Assessing Potential Risk to Species Due to Pesticide Use. Presentation at the 22^nd Annual Northwest GIS Users' Conference, Tacoma, Washington, USA
Giddings, J.M., Howes, D.A., McGaughey, B.D. and Rives Frank, A. 2007. Framework for Detailed Endangered Species Determination Development in Support of Pesticide Product Registration. Poster Presentation at the American Chemical Society 233^rd National Meeting & Exposition, Chicago, Illinois, USA
McGaughey, B.D., Howes, D.A., Carr, K.H., Hall, A.T. and Wall, S. 2007. Tiered Approach to the Use of Best Available Data on Species Locations in Pesticide Assessments on Endangered Species. Poster Presentation at the American Chemical Society 233^rd National Meeting & Exposition, Chicago, Illinois, USA
Howes, D.A. 2003. Geospatial Interfaces to Ecological Models: Possibilities and Issues. Presentation at the 2003 Intermountain GIS, Coeur d’Alene, Idaho, USA
Howes, D.A., Blair, S. and Pasch, J. 2000. GIS Enhanced Decision Support Systems for Watershed Management. Presentation at the SETAC 21^st Annual Meeting in North America, Nashville, Tennessee, USA
Howes, D.A. and Abrahams, A.D. 1999. One- and Two-Dimensional Modeling of Surface Runoff in a Desert Shrubland Ecosystem. Presentation at the Association of American Geographers 95^th Annual Meeting, Honolulu, Hawaii, USA
Howes, D.A. and Abrahams, A.D. 1998. Modeling Runoff in a Desert Shrubland Ecosystem. Presentation at the Association of American Geographers 94^th Annual Meeting, Boston, Massachusetts, USA
Howes, D.A. and Abrahams, A.D. 1997. Modeling Runoff in a Desert Shrubland Ecosystem. Presentation at the Seventh Annual Friends of the Jornada Symposium, Las Cruces, New Mexico, USA
Howes, D.A. and Abrahams, A.D. 1997. Modeling Water, Sediment, and Nutrient Fluxes in a Desert Shrubland Ecosystem. Presentation at the Association of American Geographers 93^rd Annual Meeting, Fort Worth, Texas, USA
Howes, D.A. and Batty, J.M. 1996. Visualizing and Predicting Urban Development Using Property Data and Satellite Imagery. Presentation at the Association of American Geographers 92^nd Annual Meeting, Charlotte, North Carolina, USA
Howes, D.A., Green, M. and Kurtz, T. 1993. Spatial Statistical Modeling in a GIS Framework: Predicting Levels of Rural Deprivation in Britain. Presentation at the Regional Science Association International, British Section, 24^th Annual Conference, Nottingham, England
Howes, D.A. and Gatrell, A.C. 1993. Visibility Analysis in GIS: Issues in the Environmental Impact Assessment of Windfarm Developments. Presentation at the GIS ‘93, Birmingham, England
Howes, D.A., Green, M. and Kurtz, T. 1993. Spatial Statistical Modeling in a GIS Framework: Predicting Levels of Rural Deprivation in Britain. Presentation at the EGIS ‘93, Genoa, Italy
Howes, D.A., Green, M. and Kurtz, T. 1993. Where to Get a Drink Using GIS. Presented at GIS Research UK, University of Keele, England
Howes, D.A. and Flowerdew, R. 1992. Geodemographic Clustering for the 1990s. Presentation at the Regional Science Association International, British Section, 23^rd Annual Conference, University of Dundee, Scotland

Invited Presentations

Howes, D.A. 2002. Modeling Runoff in a Desert Shrubland Ecosystem, Jornada Basin, New Mexico; Invited presentations at the United States Geological Survey, District Office, Tacoma, Washington and United States Geological Survey, District Office, Portland, Oregon, USA
Howes, D.A. 2002. Modeling Interfaces to Ecological Models: Possibilities and Issues. Presentation at the 2002 GIS Update Conference, Department of Geography, University of Edinburgh, Scotland
Howes, D.A. and Abrahams, A.D. 2000. One- and Two-Dimensional Modeling of Surface Runoff in a Desert Shrubland Ecosystem. Presentation at the 2000 International Binghamton Geomorphology Symposium, Binghamton, New York, USA
Howes, D.A. 2000. Development of a Water Resources Decision Support System for the Huangpu River Basin, Shanghai, China. Invited presentation at the United States Geological Survey, District Office, Portland, Oregon, USA
Howes, D.A. and Abrahams, A.D. 1997. Modeling Overland Flow on Bajada Surfaces in the Jornada Basin, New Mexico. Invited presentation at the United States Department of Agriculture - Agricultural Research Service, National Soil Erosion Research Laboratory, West Lafayette, Indiana, USA
Howes, D.A. and Abrahams, A.D. 1996. Modeling Spatial Variability in Infiltration. Invited presentation at the Department of Geography, University of Dundee, Scotland

Please get in touch if you'd like to know more about any of these presentations.