Human Impact on the Geomorphological Evolution of the Opak River Following the 2010 Large Volcanic Event of the Merapi (Indonesia)

Frederic Gob1, Emmanuèle Gautier1, Clement Virmoux2, Delphine Grancher2, Vincent Tamisier2, Kiki Widyaputra Primanda3 and Sandy Budi Wibowo1, (1)University Pantheon-Sorbonne, Laboratory of Physical Geography, Paris, France, (2)CNRS, Laboratory of Physical Geography, Paris Cedex 16, France, (3)Gadjah Mada University, Yogyakarta, Indonesia