River
Om
1,091 km from source to mouth · Russia.
RussiaFlows into Irtysh
In numbers
Length
1,091km
Average flow
64m³/s
Basin
52,600km²
Drop
79m
from 143 m to 64 m
Country
1
The journey
From source to mouth
1,091 km of river and 22 stops on the way: 4 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 143 m
- 0 kmOzero Targach1.3 km²
- 77 kmLyachatributary
- 93 kmSenchatributary
- 115 kmIchatributary
- 225 kmOzero Bol'shoy Balman1.5 km²
- 264 kmUgurmankatributary
- 299 kmKonduslatributary
- 363 kmKuybyshev41,123 people
- 410 kmKazyktributary
- 428 kmOzero Karbalyk3.7 km²
- 431 kmUzaklatributary
- 444 kmOzero Kundar1.4 km²
- 495 kmOzero Tatarskoye1.2 km²
- 520 kmKamatributary
- 535 kmTartastributary
- 694 kmYelankatributary
- 741 kmAchairkatributary
- 854 kmKalachinsk24,059 people
- 888 kmTarbugatributary
- 914 kmKormilovka10,166 people
- 987 kmYubileinyi bridge
- 987 kmOmsk1,101,367 people
- 1,091 kmIrtyshat 64 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Omsk and Novosibirsk Oblasts, Russia
At the mouth it carries 64 m³/s on average: an Olympic pool every 39 seconds. It drops from 143 m to 64 m, 0.1 m per kilometre on average. Its basin covers 52,600 km², about the size of BA. 605,000 people live in it. Highest water: from April to June; lowest: from December to March. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- OmskLargest city on its banks · 1,101,367 people
- Omsk Central Airport (OMS)Nearest airport with scheduled flights, 4 km from the city
- On the water1 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- From June to AugustThe best months to visit
Om, month by month
Highest water: from April to June
Lowest water: from December to March. Freezing months (average below −4 °C): from November to March. Best months to visit: from June to August.
From about 92 m³/s in the lowest month to 150 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.
Plan the trip
Plan the trip: boat trips, a bed by the river, a car
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The basin
Om: the basin in numbers
63,357 km² of land send their water to this river. This is what lives on it.
- 605,000people live in the basin
- 10/km²people per km²
- 120maverage altitude of the basin
- 410mmof rain a year (basin average)
- 0.1°Caverage air temperature
- 5%protected areas
- 1.9%covered by lakes
What covers the basin
- 23% Forest
- 21% Cropland
- 28% Pasture
RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.
Along the river
Om: what you find on the way
- 1Ferry piers
- 1River beaches
From OpenStreetMap, within 2.3 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Om in our other atlases
What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.
5lakes on its wayLakeyas
Lakes and reservoirs (5)
Lakes it flows through, by Lakeyas
- Ozero Targachkm 01.3km²
- Ozero Bol'shoy Balmankm 1631.5km²
- Ozero Karbalykkm 3103.7km²
- Ozero Kundarkm 3221.4km²
- Ozero Tatarskoyekm 3581.2km²
Lakeyas is coming soonOpen Lakeyas ↗
From space
The source and the mouth, seen from orbit
Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.
Photos
Om in pictures
Tributaries
Where it flows, and what flows into it
It flows into
IrtyshRussia4,248 km3,000 m³/sTributaries (19)
Also: Tartas, Icha, Icha, Achairka, Uzakla, Yelanka, Kazyk, Kondusla, Lyacha, Musikha, Patrushevka, Sencha, Tarbuga, Ugurmanka, Amgut, Kulas, Ryabkovka, Ubinka, Kama
Where these numbers come from
| Name, length, places | Wikidata (Q641923) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Lakeyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST |
Every source and licence is on the data sources page.
The family
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