Katta-Uradarya , Katta Uradarya , Katta-Uryadarya , Uradarya ( uzb. Katta Oʻradaryo / Katta Kradaryo ) is a river in the Kamašinsky and Dekhkanabad districts of the Kashkadarya region of Uzbekistan [1] , the right-hand component of the river . In the upper reaches it is called Igrisu ( Uzb. Egrisuv / Egrisuv ); according to some sources, from the source is called Chimbay , hereinafter - Aksu, and only then acquires the name Igris [2] [3] .
| Katta-Uradarya | |
|---|---|
| uzb Katta Oʻradaryo | |
 Katta-Uradarya in June, above the village of Hannaz | |
| Characteristic | |
| Length | 113 km |
| Pool | 1410 km² |
| Water flow | 4.81 m³ / s ( Bazartep Kishlak) |
| Watercourse | |
| Source | |
| • Location | Hissar Range , Harkush Pass |
| • Height | about 3400 m |
| • Coordinates | |
| Mouth [?] | |
| • Location | below the settlement Rawat |
| • Height | about 670 m |
| • Coordinates | |
| Location | |
| Water system | Pachkamara reservoir → Guzardarya → Kashkadarya |
| A country |
|
| Region | Kashkadarya region |
| Areas | Kamashinsky district , Dehkanabad district |
Content
Hydrological characteristic
The length of Katta-Uradarya is 113 km [4] , the basin area is 1,410 km². The mean annual water discharge , measured in the village of Bazartep, was 4.81 m³ / s with a runoff variability coefficient of 0.476 (over the period of observations in 1965—2002) [5] . The river is fed with snow, rain and spring water. The river increases the flow from March to May [4] . The annual runoff volume in the village of Bazartep is 151.8 million m³, the average runoff module is 3.85 l / s km2 , and the runoff layer is 121 cm / year [6] .
River
Katta-Uradarya originates in the western part of the Hissar Range , from the Harkush Pass (3448 m) According to the National Encyclopedia of Uzbekistan , it is called Igris from the source [4] . According to the topographic maps of the General Staff, the river gets the name Igrisu below, approximately in the area of the same name village [2] [3] , and from the source it is called Chimbay and then Aksu [2] [3] .
In a small section in the upper reaches it flows to the northeast, then, above the village of Dukankhan, it is oriented in the general western direction with a slight slope towards the south, keeping it up to the mouth (however, the channel forms many bends) [1] . Katta-Uradarya flows mainly among the mountains [4] .
The river are settlements Dukanhana, Palvansay [3] , Akdara, Akkishlak, Igrisu, Soup, Koshkul, Karankul [2] , Bakyrchi, Alma, Terakli, Kokbulak, Kan Gannaza, Nyman, Chaygul, Baykurgan, Chashtepa, Shurguzar, Abad , Bazartepa [7] , Rawat , Chukur [8] .
The Katta-Uradarya on the right, merging with on the left, forms the River . Currently, in the area of their confluence, the [9] [10] has been built . Katta-Uradarya behind the settlement Rawavat flows into the northeastern part of the reservoir, at an altitude of about 670 m [8] .
The speed of the current in the area of the settlement of Supa (the area called Igrisu) is 3.0 m / s [2] , in the area of the settlement of Alma - 1.2 m / s, in the area of the settlement of Abad - 2.0 m / s [ 7] , in the area of Rawat settlement, near the mouth - 0.8 m / s [8] . The width of the river at Bakyrchi is 8 m, depth - 1.0 m, at Kan - 16 m and 50 cm, respectively, in the area of Naiman - 12 m and 50 cm, respectively, in the area of Baytkurgan - 20 m and 60 cm, respectively, in the area of the Abad settlement - 10 m and 50 cm, respectively, the bottom soil at all points is solid [8] .
Economic Use
Katta-Uradarya provides water to nearby villages and agricultural land [4] .
In the upper course, near the settlements of Igrisu and Karankul, flour mills were built on the river [2] .
Ichthyofauna
Common marinka occurs in the river [11]
Katta Uradarya Pool
The major tributaries of the Katta-Uradarya are [4] Almatsay (right), (left) [2] , or Zarangbulak (left) [7] , Shors [ where? ] .
Notes
- ↑ 1 2 Kashkadarya region. Background political and administrative map. Scale 1: 500,000 - Tashkent: Goskomgeodezkadastr, 2007. ISBN 978-9943-15-060-7
- ↑ 1 2 3 4 5 6 7 Map sheet J-42-51 Yukary Machai . Scale: 1: 100 000. The state of the area in 1975. 1989 edition
- ↑ 1 2 3 4 Map sheet J-42-39 Tashkurgan . Scale: 1: 100,000. State of the area in 1984. 1989 edition
- 2 1 2 3 4 5 6 Katta Kradaryo - National Encyclopedia of Uzbekistan . - Tashkent, 2000-2005. ( uz. )
- ↑ Chub, 2007 , p. 77-78.
- ↑ Chub, 2007 , p. 77.
- ↑ 1 2 3 Map sheet J-42-50 Karashina . Scale: 1: 100,000. State of the area in 1982. 1989 edition
- ↑ 1 2 3 4 Map Sheet J-42-49 Guzar . Scale: 1: 100,000. State of the area in 1982. 1989 edition
- Ғ ордuzordaryo - National Encyclopedia of Uzbekistan . - Tashkent, 2000-2005. ( uz. )
- ↑ Pachkamar suv ombori - National Encyclopedia of Uzbekistan . - Tashkent, 2000-2005. ( uz. )
- ↑ Ergashev M. R. To the biology of the common marinka in the Pachkamarsky reservoir, Katta Uradarye and Kichik Uradarya // Biological bases of the fish industry of the republics of Central Asia and Kazakhstan. Proceedings of the 15th scientific conference. Dushanbe. 1976. pp. 389-391.
Literature
- Katta Ўradaro - National Encyclopedia of Uzbekistan . - Tashkent, 2000-2005. ( uz. )
- Chub V.E. Climate change and its impact on hydrometeorological processes, agroclimatic and water resources of the Republic of Uzbekistan. - Tashkent: “VORIS NASHRIYOT” MChJ, 2007. - p. 77-78. - 133 s. - ISBN 978-9943-304-23-9 .