Ulluchay
| Ulluchay Ullu-Chay | |
|---|---|
_-_panoramio_(4).jpg) Ulluchay River | |
  Location within Caucasus Mountains  Location within Republic of Dagestan | |
| Etymology | Kumyk for "big river" |
| Native name | Уллучай (Russian) |
| Location | |
| Country | Russia |
| Federal subject | Dagestan |
| Region | Caucasus |
| Districts | Dakhadayevsky, Kaytagsky, and Derbentsky |
| Nearby village | Segeler |
| Physical characteristics | |
| Source | Springs near the northwestern end of the Kokmadag Range |
| • location | Dagestan, Russia |
| • coordinates | 41°59′53″N 47°20′05″E / 41.99806°N 47.33472°E |
| Mouth | Caspian Sea |
• location | Near Segeler, Dagestan, Russia |
• coordinates | 42°56′13″N 48°07′57″E / 42.93694°N 48.13250°E |
| Length | 111 km (69 mi) |
Basin size | 1,440 km2 (560 sq mi) |
| Discharge | |
| • average | 4.83 m3/s (171 cu ft/s) |
| • maximum | 366 m3/s (12,900 cu ft/s) |
| Basin features | |
| Tributaries | |
| • right | Kunki, Anklyuglyuchay, Jivus, Nakhalu, Shurkhla |
Ulluchay (Dargwa: ХулахӀеркӀ, Уллучай хӀеркӀ; Kumyk: Уллу Чай) is a river that flows through the Dakhadayevsky, Kaytagsky, and Derbentsky districts of Dagestan.
Etymology
Ulluchay translates from the Kumyk language as “big river”: “ullu” means “big,” while “chay” means “river.”
Geography
The river is 111 km long, and its drainage basin covers an area of 1,440 km2.
The river originates from springs near the northwestern end of the Kokmadag Range and flows into the Caspian Sea near the village of Segeler.
Hydrology
The river is characterized by a flood regime during the warm season and low-water conditions in winter. The highest annual water discharge rates usually occur during periods of rainfall. Summer rain-induced floods sometimes reach catastrophic proportions. Mudflows have also been recorded along the river channel. The average annual discharge is 4.83 m3/s, while the maximum discharge is 366 m3/s.
Tributaries
The main tributaries are the Kunki, Anklyuglyuchay, Jivus, Nakhalu, Shurkhla, and others.
Study of the river and its significance for water management
The river has been studied at stream gauging stations in Madzhalis and Berikey. Its waters are extensively used for irrigation, as a result of which the lower reaches of the river frequently experience a complete absence of flow.
References
- ↑ Топонимия Дарга: структурно-семантический аспект (Toponymy of Darga: Structural-Semantic Aspect). DSU Publishing House. Makhachkala. 2013. archive-date: 2024-11-26. (in Russian).
- 1 2 Труды первого съезда служащих врачей гражданского ведомства на Кавказе. Том. 2. Вып: 2. Описание отдельных районов Эриванской, Бакинской губернии, Дагестанской области. Черноморской губернии, Сухумскаго и Закатальского округов Терской области. С. 132. (Proceedings of the First Congress of Civil Service Physicians in the Caucasus. Vol. 2, Issue 2: Descriptions of individual districts within the Erivan and Baku Governorates, the Dagestan Oblast, the Black Sea Governorate, and the Sukhumi and Zakatala districts of the Terek Oblast. P. 132.) Archived 2023-02-06 at the Wayback Machine
- ↑ Уллучай (Ulluchay). State Water Register / Ministry of Natural Resources and Environment (Russia). Publication date: 2021. (in Russian).
- ↑ Ресурсы поверхностных вод СССР том 9, Закавказье и Дагестан, вып. 3, Дагестан. (Surface Water Resources of the USSR, Vol. 9: Transcaucasia and Dagestan, Issue 3: Dagestan)
External links
Media related to Ulluchay at Wikimedia Commons
