How to improve baseline model NSE

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Retang Mokua

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Sep 14, 2026, 11:14:15 AMSep 14

to SWAT+ Editor

1. Primary Issue Report Template

Component: QSWAT+, SWAT+Editor

Area of Impact: Model output

2. Software Version

QGIS 3.34.3, SWAT+ 3.0.3, SWAT+ Editor 3.2.0

3. Project Characteristics

Watershed: 57 km2, Mountainous catchment

Model Aim: Water balance, ET, flow simulation to determine land use and cover impacts on flow production

4. Description issue

I have successfully run my baseline model; however, the NSE and R2 are very poor. I am trying to figure out the next step to improve the model but have no idea where to begin. My model produces very high peaks and close to zero flow for dry periods, while my watershed has perennial streams and baseflow. I will attach my TXTinOut folder for your assessment upon request. I would appreciate your assistance in diagnosing where the real problem could be.