Supporting Spatial Data for Sediment Studies in the Bogachiel and Calawah River Watersheds, Washington

This Data Release provides spatial data to support analysis of land cover change and channel width change in the Bogachiel and Calawah River basins, Washington. This supports a larger analysis that quantifies suspended-sediment yields for the two basins for water years 1977-1978 and more recently, for water years 2019-2021. Collectively the study evaluates influences of hydrology, geology, fire, and land cover change on suspended-sediment yields. The metadata file describes the Data Release structure, but briefly, this Data Release includes zipped files of:

1. Historical imagery for the Bogachiel and Calawah River basins,
2. shapefiles of digitized centerline, active channel areas, and cleared areas for the two river basins,
3. shapefiles of digitized centerline and active channel areas for subreaches, and
4. a shapefile of the approximate spatial extent of the Forks Fire.  

Associated suspended-sediment data can be found in the following Data Release:

Anderson, SW, Jaeger, KL, Rasmussen, N, Seguin, CM, Wilkerson, OA, and Curran, CA, 2022, Suspended-Sediment Data for the Bogachiel and Calawah Rivers, WA for Water Years 2019-2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9YT9CN2.