I'm looking for methods to separate different sources contributions to suspended sediment concentration / sediment yield :
Either to quantify the volume or to obtain partial concentrations of the hillslope portion or the in-chanel portion based on Time-Discharge-Concentration data series.
Most methods I find use fingerprinting, I don't have the data required for such methods. Thank you !
Looks like a modeling approach will be ideal to asses source contribution. A good model to use is WEPP. You can simulate and calibrate with the data you have. The simulation can apportion the loading to sources.
The model can be accessed at
https://www.ars.usda.gov/midwest-area/west-lafayette-in/national-soil-erosion-research/docs/wepp/research/
Hope this helps
Khettab Omar El Farouk
Are you using SWAT (Soil Water Assessment Tool) or any simulation approach to quantify ?
Miyuru Bandara Gunathilake ;
Right now I'm interested in this method :
Article A graphical method to study suspended sediment dynamics duri...
I'm looking for methods that are independent from the spatial characteristics of catchments if possible. the objective is to determine the rating curve (C=aQ^b) that represents the stream channel contribution to SSC or Bed-load.
Even if you ultimately want to be able to differentiate the contributions from the multiple sources of sediments without taking into account the characteristics of the watershed, a modeling approach, like the one proposed by Timothy O Randhir, could help you initially to derive a (graphical) model of your own, calibrate it, and validate it. It could be something like this:
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