Coupling erosion, weathering, and hydrologic function in an active orogenic system

This multi-disciplinary project is a collaboration of USA, Nepal, and U.K. scientists to investigate the multi-scale relationships between tectonic uplift, topographic evolution, chemical weathering, and seismicity. The Himalayan orogen in central Nepal is the representative study site. The seismic experiment is a set of high resolution dense arrays to image the near surface to hundreds of meters depth. The experiment used 309 three-component 5-Hz nodes at nominal 100 m spacing, deployed and recorded for one month. 21 of these nodes were arranged in a local 2D array. Circle array collection was also carried out targeting shallow fracture anisotropy.