HydroBASINS lev08 watershed · #7080512200
Bassin de Hudson River
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 5 administrative regions : Dutchess, Orange, Putnam, Rockland, Westchester
Sub-basin area
624,7km²
Upstream area
33 421,3km²
Discharge
723,47m³/s
Mean elev.
164m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Moodna Creek464 km²
- Bassin de Hudson River4 km²
5 dept-equivalent regions (GADM L2)
- PutnamNew York · United States208.2 km²33.3% of basin
- RocklandNew York · United States150.0 km²24.0% of basin
- WestchesterNew York · United States138.5 km²22.1% of basin
- OrangeNew York · United States125.9 km²20.1% of basin
- DutchessNew York · United States3.0 km²0.5% of basin
16 intersecting protected areas
California Hill
IUCN IbState Forest
3.58 km² overlap
Marine Protected Area
2.10 km² overlap
Constitution Island
IUCN VState Conservation Area
1.84 km² overlap
New York
IUCN VState Lands
0.77 km² overlap
Haverstraw Town Lands
IUCN VLocal Conservation Area
0.64 km² overlap
Castle Rock
IUCN VUnique Area
0.53 km² overlap
Furnace Brook Headwaters
IUCN VPreserve
0.25 km² overlap
West Point Foundary
IUCN VPreserve
0.22 km² overlap
Osborn
IUCN VPreserve
0.18 km² overlap
7 more protected areassorted by overlap area
Stony Point Marsh
IUCN VLocal Conservation Area
0.17 km² overlap
Town
IUCN VOpen Space
0.12 km² overlap
Minisceongo Creek
IUCN VEstuarine Research Reserve
0.08 km² overlap
South Mountain
IUCN VPark
0.05 km² overlap
Westchester County Lands
IUCN VLocal Conservation Area
0.03 km² overlap
Open Space
0.00 km² overlap
Park
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 619 distinct species · 484 441 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Hudson River : 27 espèces reliées par 77 interactions GloBI sur 4 types (connectance 9.9%, filtre Serrano α=0.2). 13 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°
9,9°C
Annual rain
1 194mm
Moisture idx (CMI)
0,16
Runoff
760mm/an
PET
1 000mm
AET
818mm
Mean slope
6,6°
Water table
361cm
Forest
82%
Crops
1%
Urban
24%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)