HydroBASINS lev08 watershed · #6080458190
Bassin de Riachão
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 3 administrative regions : Bom Jesus, Gilbués, Monte Alegre do Piauí
Sub-basin area
697,7km²
Upstream area
697,7km²
Discharge
4,09m³/s
Mean elev.
588m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 328.8 km²47.3% of basin
- 186.2 km²26.8% of basin
- 179.9 km²25.9% of basin
1 intersecting protected areas
Environmental Protection Area
193.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
14 distinct species · 17 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
24,7°C
Annual rain
963mm
Moisture idx (CMI)
-0,48
Runoff
190mm/an
PET
1 855mm
AET
813mm
Mean slope
1,9°
Water table
115cm
Forest
66%
Crops
11%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)