Ate is an expert in the field of water accounting, remote sensing, GIS, hydrology, and water resource management. After obtaining his PhD degree at Wageningen University in the Netherlands, he worked for over a year with Winrock international in the USAID Vietnam Forests and Deltas (VFD) program. Currently, he still works part-time with VFD program in Hanoi and is part-time employed by the Spatial Informatics Group in SERVIR-Mekong. Ate is involved in the development of a web-based water accounting scenario platform that allows users to quantify and visualize water supply and demand in a basin across multiple sectors. The system helps users assess outcomes such as whether water supplies are in danger of being over-allocated. Furthermore, he has taken the lead in the development of a tool to assess the biophysical conditions of any specified geographic domain. He is also involved in the knowledge transfer of state-of-the-art remote sensing technologies and tools to local partners.