The GEWEX Regional HydroClimate Projects and International Research Collaboration Relevant to the Contiguous United States

The Global Energy and Water EXchanges (GEWEX) project of the World Climate Research Programme (WCRP) has for more than 30 years supported and promoted successfully international research collaboration on climate, energy and water. During these more than 3 decades a clear change in how research has evolved from more disciplinary to inter- and transdisciplinary has manifested itself. With that change the challenges regarding collaboration have grown but likewise the opportunities. In this presentation a short overview is given on past, present and future developments within GEWEX on promotion of international research collaboration and how that is relevant and applicable to the contiguous United States. In particular, the role of Regional Hydroclimate Projects and their evaluation will be presented.