HydroBASINS lev08 watershed · #4081064030
Bassin de แม่น้ำยม
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 4 administrative regions : Chiang Muan, Dok Kham Tai, Ngao, Song
Sub-basin area
229,7km²
Upstream area
229,7km²
Discharge
0,84m³/s
Mean elev.
530m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 102.2 km²44.6% of basin
- 101.1 km²44.1% of basin
- 20.9 km²9.1% of basin
- 4.9 km²2.1% of basin
1 intersecting protected areas
Mae Yom
IUCN IINational Park
99.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 distinct species · 9 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°
24,4°C
Annual rain
1 242mm
Moisture idx (CMI)
-0,27
Runoff
121mm/an
PET
1 697mm
AET
977mm
Mean slope
8,3°
Water table
502cm
Forest
50%
Crops
5%
Urban
0%
Protected
43%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)