River
Aidar
264 km from source to mouth · Ukraine and Russia.
Ukraine and RussiaFlows into Donets
In numbers
Length
264km
Average flow
15m³/s
Basin
7,420km²
Drop
67m
from 103 m to 36 m
Countries
2
The journey
From source to mouth
264 km of river and 10 stops on the way: 6 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmBelgorod Oblastat 103 m
- 37 kmRoven’ki10,939 people
- 37 kmLozovayatributary
- 47 kmLoznayatributary
- 79 kmBilolutsk3,695 people
- 81 kmBilatributary
- 107 kmAydar9,619 people
- 137 kmOzero Plavy0.5 km²
- 157 kmStarobilsk18,796 people
- 210 kmNovoaidar7,773 people
- 261 kmShchastya11,411 people
- 264 kmDonetsat 36 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River that crosses the border between Luhansk Oblast of Ukraine and Belgorod Oblast of Russia
At the mouth it carries 15 m³/s on average: an Olympic pool every 162 seconds. It drops from 103 m to 36 m, 0.3 m per kilometre on average. Its basin covers 7,420 km², about the size of PR. 152,000 people live in it. Highest water: from April to June; lowest: from January to March and October. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- StarobilskLargest city on its banks · 18,796 people
- From May to SeptemberThe best months to visit
Aidar, month by month
Highest water: from April to June
Lowest water: from January to March and October. Freezing months (average below −4 °C): from January to February. Best months to visit: from May to September.
From about 4.0 m³/s in the lowest month to 60 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
Aidar: the basin in numbers
7,390 km² of land send their water to this river. This is what lives on it.
- 152,000people live in the basin
- 21/km²people per km²
- 138maverage altitude of the basin
- 507mmof rain a year (basin average)
- 7.4°Caverage air temperature
- 0.3%covered by lakes
What covers the basin
- 1% Forest
- 57% Cropland
- 29% Pasture
- 1% Towns and cities
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
Aidar: what you find on the way
- 3Weirs
- 2River beaches
From OpenStreetMap, within 1.7 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Aidar 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.
1lake on its wayLakeyas
Lakes and reservoirs (1)
Lakes it flows through, by Lakeyas
- Ozero Plavykm 1070.5km²
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
Aidar in pictures
Tributaries
Where it flows, and what flows into it
It flows into
DonetsRussia1,053 km160 m³/sTributaries (9)
Also: Loznaya, Fominka, Lozovaya, Bila, Bila, Yar Dubovets, Balka Shul'ginka, Balka Butova, Sarma
Nearby
Rivers nearby
Ukraine198 km14 m³/s22 km awayDonRussia1,870 km940 m³/s182 km awayOskilUkraine472 km44 m³/s138 km awayKalmiusUkraine209 km8.2 m³/s221 km awayKhopyorRussia979 km150 m³/s243 km awayKalchykUkraine88 km27 m³/s221 km awayVovchaUkraine336 km5.3 m³/s261 km awaySamara RiverUkraine320 km17 m³/s305 km awayWhere these numbers come from
| Name, length, places | Wikidata (Q2469194) · 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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