We investigate and quantify different aspects of matter transport along the present day fluvial pathway across different spatial scales (hill slopes, sub-catchments, entire basin) in the Nam Co catchment, combining in-situ measurements of matter yields with ground-based geophysical characterization of soil and sediment sources. Concurrent multi-temporal and multi-sensor remote sensing including Synthetic Aperture Radar (SAR) systems will be applied because they provide imagery of land surface dynamics even during the monsoon season.