Introduction to the thematic issue

The Youth Geomorphologists Colloquium (JJG) are an opportunity to sound out the discipline, to measure its dynamics and to assess its innovative dimensions regarding the tools, the methods or the thematic investment into new territories. As recalled by M.-J. Penven et al. (2011) by introducing the Rennes JJG 2010, the original purpose of this biennial meeting until 2000, yearly since then, was twofold: to raise awareness of the recent works and encourage exchanges between young Ph.D students...