1. Primary Issue Location
- Component: SWAT+ Executable (crash occurs during model run), though root cause is suspected to trace back to SSURGO soil data imported via QSWAT+
- Area of impact: Model input (soil data) → Model Functionality (runtime crash)
2. Software Versions
- GIS Interface: QSWAT+
- SWAT+ Editor: v3.2.3
- SWAT+ Revision: 61.0.2
3. Project Characteristics
- Watershed Details: ~15 subbasins, ~500 HRUs (filter by landuse 5% / soil 0% / single slope band threshold), Quail Creek Reservoir catchment, southern Utah, nested basin design with two outlets (interior calibration gage + basin pour point)
- Modeling Aim: Streamflow/water balance — simulating ungauged reservoir inflow, calibrated against an interior USGS gage
4. Description of Issue
forrtl: error (65): floating invalid
Image PC Routine Line Source
swatplus-61.0.2-i 00007FF669F67459 NUT_NMINRL 174 nut_nminrl.f90
swatplus-61.0.2-i 00007FF669ED4F52 HRU_CONTROL 457 hru_control.f90
swatplus-61.0.2-i 00007FF669D447F2 COMMAND 258 command.f90
swatplus-61.0.2-i 00007FF66A09A830 TIME_CONTROL 254 time_control.f90
swatplus-61.0.2-i 00007FF669F4DBA7 MAIN 129 main.f90
swatplus-61.0.2-i 00007FF66A0BD6FB Unknown Unknown Unknown
swatplus-61.0.2-i 00007FF66A0C5C60 Unknown Unknown Unknown
KERNEL32.DLL 00007FF893E5E957 Unknown Unknown Unknown
ntdll.dll 00007FF894E2AD6C Unknown Unknown Unknown
Steps to Reproduce: Soils imported via SSURGO (gSSURGO raster matched against swatplus_soils.sqlite) in QSWAT+ Create HRUs step. Weather imported via observed GridMET stations + wgn_us weather generator. Error occurs immediately when clicking "Run SWAT+" from the Confirm Simulation Settings screen.
5. Supporting Data (Optional)
- Link to TxtInOut folder: I can share the Google Drive link upon request.
Thanks
Mahmud