2003, Devised modeling approach to simulate Coastal flooding in ungaged basins of El Salvador for the Servicio Nacional Estudious de Territoriales (SNET), San Salvador, El Salvador, .. [Funding: USAID-OFDA]

2004, Developed and presented seminar on Reliability in urban ground-water recharge estimates through the vadose zone: managing sustainable development in arid and semiarid regions, for NATO Advanced Study Institute - Management and Sustainable Development of Urban Groundwater Systems, Baku, Azerbiajan [Funding: NATO]

2005, Developed and presented seminar on Urbanization effects on Ecological integrity in the Upper Illinois River Basin, USA, for NATO Advanced Study Institute - Groundwater and Ecosystems, Canakkale, Turkey [Funding: NATO]

2005, Developed and taught course on Variably-saturated zone hydrology: experimental Design, data collection, and modeling to 18 scientists from 6 different ministries in the strife-ridden areas of the Middle East (Israel, Jordan, and Palestine); Budapest, Hungary, (10 days) [Funding: U.S. Department of State - MIDDLE EAST PEACE PROCESS].

2006, Technical assistance to Government of Haiti. Participated as hydrologic expert in discussions and devising of a flood warning system based modeling of ungauged basins; Port au Prince, Haiti, 2006.

2006, Technical assistance to Government of Mauritania. Participated as hydrologic expert in discussions and workshop on conducting national mineral assessments, Nouakchott, Mauritania, , May, 2006.

2006, Technical assistance to Government of El Salvador. Participated in discussions on water policy including use and rights; San Salvador, El Salvador, , August, 2006.

2007, Technical assistance to Commissioner of the European Commission responsible for the European Union (EU) Mine Waste Directive implementation and Inventory Task Group members (from the 25 EU countries). Provided written input on state of the art approach being used in the U.S., November. 

2007, Technical assistance to Geological Survey of Finland. Participated in field trips to new and existing mines, review of hydrologic and geochemical data, and discussions to establish collaborative multi-component reactive transport studies at existing and future sites, Kuopio, Finland, , September and October, 2007.

2007, Technical assistance to Republic of Georgia of . I co-authored a proposal with Director of  Seismic Monitoring Center and Ministry for Education and Science on Numerical modeling of Geothermal Deposits for Creation of an Energy Efficient System, submitted to Science and Technology Center in Ukraine, February, 2008.

2007, Technical assistance to Republic of Kyrghyz of . I co-authored a proposal with Director of the Hydrogeology and Water Economy Problems Laboratory of Kyrghyz Scientific and Scientific and Research Institute of Irrigation on Evaluation of measures to mitigate ground-water flooding in Bishkek region of Kyrgyzstan, CRDF.

2008, Technical assistance to  a European research consortium. I co-authored a proposal on Climate change and desertification - impacts and mitigation strategies, European Union, FP7.

2008, Visiting scientist, Fortaleza; visiting professor: University of Brasilia, Brasilia, and University of Campinas, Campinas, Brazil, July-Dec. [Funding: Fundação de Amparo à Pesquisa do Estado de São Paulo, São, Brazil, ] 

2009, Technical assistance to Geological Survey of Brazil, University of Brasilia, and University of Campinas of . I co-authored a proposal on Joint inversion of airborne geophysical and hydrogeological data applied to ground-water exploration in the States of Ceará and Pernambuco, Brazil,

        CRDF - Civilian Research & Development Foundation

        FAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo,
         São, Brazil

        GEF - Global Environmental Fund

        NATO - North Atlantic Treaty Organization

        OFDA - Office of Federal Disaster Assistance

        USAID - United States Agency International Development

        WORLD BANK - World Bank Group is an international organization 
        (a United Nations Program)