HydroBASINS lev08 watershed · #2080172110
Bassin de Tungufljót
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 : Biskupstungnahreppur, Borgarfjarðarsveit, Grímsnes- og Grafningshreppur, Laugardalshreppur
Sub-basin area
821,3km²
Upstream area
821,4km²
Discharge
37,36m³/s
Mean elev.
604m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 442.9 km²53.6% of basin
- 281.6 km²34.1% of basin
- 97.2 km²11.8% of basin
- 4.9 km²0.6% of basin
2 intersecting protected areas
Pollengi og Tunguey
IUCN IVNature Reserve
1.54 km² overlap
Geysir í Haukadal
IUCN IIINatural Monument
1.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
555 distinct species · 5 214 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Tungufljót : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
1,2°C
Annual rain
1 246mm
Moisture idx (CMI)
0,75
Runoff
1 388mm/an
PET
302mm
AET
301mm
Mean slope
5,5°
Water table
0cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)