- 
    
      Sirba RiverMain channel of Sirba River and its main tributaries: Yali, Faga and Koulouko rivers
- 
    
      Secondary hydrographyMinor intermittent hydrography of the Sirba River Basin
- 
    
      Niger River BasinSurface drained by the Niger River
- 
    
      Niger RiverNiger River
- 
    
      Flood hazard scenariosFlood prone areas for the different flow conditions of the Sirba River
