Datasets for sediment source partitioning and budgeting: Fitzsimmons Creek Watershed, BC, Canada

The data repository includes the necessary shapefiles, raster datasets, and data tables to understand the detailed sediment budget (2014-2018), and historical sediment yield for the Fitzsimmons Creek Watershed, BC, Canada.The sediment budget data includes feature classes delineating the areas of interest (AOI) by landform (restricted to where significant change occurred based on fieldwork and preliminary morphometric change analysis), and summary tables of historical gravel removal, sedimentation in the run-of-river intake headpond, and net change lidar analysis for the 2014-2018 period. The DEM’s were first co-referenced and clipped to the area of interest, then a limit of detection was applied for gross measurements, and a DEM-based uncertainty analysis was performed. Additionally, the bed material fraction of sediment sources was estimated based on local grain size distribution estimates.The sediment yield (SY) data includes georeferenced historical air photos and UAV orthophotos from 1947 to 2023 with the topsets manually delineated, bathymetry rasters representing the paleolake and 2023 surfaces, and a 2023 DSM from the 2023 UAV survey. Finally, summary tables are provided for SY volumes, by period, for the delta and lake basin proximal to the delta.