How to provide hourly river discharge observations in SWAT+ Toolbox?

[Judith Eeckman]

SWAT+ Issue Report Template

1. Primary Issue Location

• Component: SWAT+ Toolbox
• Area of impact:  Model input/ Data formating

2. Software Versions

• GIS Interface: QGIS 3.40.15 SWAT+ Editor: 3.2.1 SWAT+ Revision: 61.0.2.61

3. Project Characteristics

• Watershed Details: 17km2, 25 resolution, HRUs threshold : 1Ha
• Modeling Aim: Water balance + sensitivity to Nature Based Solutions.

4. Description of Issue

• The Problem: I want to provide hourly river discharge for model calibration; In the SWAT+ Toolbox, I provide a text file with the format  :
  YYYY-MM-DD HH:00, value
  to provide hourly values. But I get the error: 'Found invalid date in observation file'
• Step to Reproduce: SWAT+ Toolbox -> Observation 

5. Supporting Data (Optional)
An extract of the observation text file :

2024-01-19 14:00,0.349
2024-01-19 15:00,0.3493333333
2024-01-19 16:00,0.3488333333
2024-01-19 17:00,0.3485
2024-01-19 18:00,0.3480833333