HydroBASINS lev08 watershed · #2080335200
Bassin de River Aire
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 12 administrative regions : Bradford, Calderdale, Kirklees, Leeds, NA +3
Sub-basin area
2 091,1km²
Upstream area
2 091,1km²
Discharge
48,19m³/s
Mean elev.
178m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
12 dept-equivalent regions (GADM L2)
- North YorkshireEngland · United Kingdom448.5 km²21.4% of basin
- CalderdaleEngland · United Kingdom362.7 km²17.3% of basin
- KirkleesEngland · United Kingdom362.4 km²17.3% of basin
- LeedsEngland · United Kingdom329.3 km²15.7% of basin
- BradfordEngland · United Kingdom318.0 km²15.1% of basin
- WakefieldEngland · United Kingdom211.3 km²10.1% of basin
- NAEngland · United Kingdom34.0 km²1.6% of basin
- NAEngland · United Kingdom25.4 km²1.2% of basin
4 moreFull L2 list
- NA5.9 km² · 0.3%
- NA1.6 km² · 0.1%
- Oldham0.6 km² · 0.0%
- NA0.2 km² · 0.0%
30 intersecting protected areas
South Pennine Moors
IUCN Not ReportedEmerald Network
187.22 km² overlap
South Pennine Moors Phase 2
IUCN Not ReportedEmerald Network
154.67 km² overlap
South Pennine Moors
IUCN IVSite of Special Scientific Interest
154.66 km² overlap
Yorkshire Dales
IUCN VNational Park
146.48 km² overlap
Peak District
IUCN VNational Park
45.65 km² overlap
Dark Peak
IUCN IVSite of Special Scientific Interest
32.57 km² overlap
Peak District Moors (South Pennine Moors Phase 1)
IUCN Not ReportedEmerald Network
32.42 km² overlap
Malham-Arncliffe
IUCN IVSite of Special Scientific Interest
25.58 km² overlap
Craven Limestone Complex
IUCN Not ReportedEmerald Network
25.57 km² overlap
21 more protected areassorted by overlap area
Marsden Moor Estate
IUCN VNature Reserve
21.29 km² overlap
Malham Tarn Estate
IUCN VNature Reserve
10.72 km² overlap
North Pennine Moors
IUCN Not ReportedEmerald Network
9.69 km² overlap
North Pennine Moors
IUCN Not ReportedEmerald Network
9.69 km² overlap
Site of Special Scientific Interest
9.69 km² overlap
Malham Tarn
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2.87 km² overlap
Fairburn Ings
IUCN IVNature Reserve
2.65 km² overlap
Fairburn Ings
IUCN IVLocal Nature Reserve
1.89 km² overlap
Fairburn and Newton Ings
IUCN IVSite of Special Scientific Interest
1.74 km² overlap
Malham Tarn
IUCN IVNational Nature Reserve
1.47 km² overlap
Hardcastle Crags
IUCN VNature Reserve
1.15 km² overlap
Newmillerdam
IUCN IVLocal Nature Reserve
0.96 km² overlap
Middleton Woods
IUCN IVLocal Nature Reserve
0.94 km² overlap
Norland Moor
IUCN IVLocal Nature Reserve
0.92 km² overlap
Meanwood Valley
IUCN IVLocal Nature Reserve
0.87 km² overlap
Walton Nature Park
IUCN IVLocal Nature Reserve
0.75 km² overlap
Haw Park Wood
IUCN IVLocal Nature Reserve
0.66 km² overlap
Broadhead Clough
IUCN IVSite of Special Scientific Interest
0.65 km² overlap
Ogden Water
IUCN IVLocal Nature Reserve
0.63 km² overlap
Anglers Country Park
IUCN IVLocal Nature Reserve
0.62 km² overlap
Seckar Wood
IUCN IVSite of Special Scientific Interest
0.48 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 372 distinct species · 1 211 669 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 River Aire : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 4 types (connectance 13.1%, filtre Serrano α=0.2). 8 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°
8,9°C
Annual rain
939mm
Moisture idx (CMI)
0,29
Runoff
727mm/an
PET
631mm
AET
529mm
Mean slope
4,1°
Water table
217cm
Forest
0%
Crops
24%
Urban
45%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)