Ontologia

HydroBASINS lev08 watershed · #3080172870

Bassin de Седедема

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 1 administrative regions : Srednekolymskiy rayon

70% lakePfafstetter: 35185410

Sub-basin area

1 229,8km²

Upstream area

17 551,3km²

Discharge

73,97m³/s

Mean elev.

27m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Колыма481 km²

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Sededema

    IUCN VI

    Resource Reserve

    24.78 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

17 distinct species · 17 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 obs · 11 cellules
Obs. / cellule
≥ 6
2–5
1–1
1–0
< 1

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Hydroclimate (BasinATLAS lev08)

Mean T°

-12,3°C

Annual rain

219mm

Moisture idx (CMI)

-0,49

Runoff

139mm/an

PET

430mm

AET

212mm

Mean slope

3,7°

Water table

61cm

Forest

44%

Crops

0%

Urban

0%

Protected

58%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)