Presentations

Please click on a title for further details.

• Howes, D.A. 2024. ArcGIS Experience Builder Widget Development: A Quick Guide for the GIS Layperson. Collaboration session to be conducted online for the November 2024 Idaho TECH Talk meeting, Pocatello, Idaho, USA
• Howes, D.A. 2024. Introduction to Python Programming. One-day workshop to be conducted online in two half-day parts on Monday, December 2^nd and Tuesday, December 3^rd in association with the Northwest GIS User Group.
• Howes, D.A. 2024. Introduction to ArcGIS Pro Python Tools and Processes Development. One-day workshop to be conducted online in two half-day parts on Thursday, December 5^th and Friday, December 6^th in association with the Northwest GIS User Group.

• 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

• 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