Hi,

I did the Invest InVEST SDR model on a watershed of about 6,000km2, but as described in the user guide, SDR assumes that once sediment reaches the stream, it is considered to reach the outlet, which is not correct in reality . I'm wondering if you can suggest another model to couple it with the SDR model?

I have thought of using HEC RAS sediment but I will have to make some adjustments concerning the time step and the treatment of the outputs (hec ras needs daily data for each sediment class (same grain diameter) that arrives to the stream instead, the SDR InVEST model gives its outputs in an annual interval and these outputs correspond to the total sediment.

thank you