Guillaume MASSELIS is a former student of the ENSEGID, with a specialization in environmental sciences and environment management. During his 6-month internship at BRGM he worked on soil erosion and landslide issues. Now he just started his VI at iEES Paris, within the M-TROPICS critical zone observatory, and was posted at SFRI in Hanoi with the aim of developing and managing both soil and hydrological databases. Welcome Guillaume!