Water Resource Transfer in Central Asia: Projects, Results, and Perspectives

2020 ◽  
pp. 47-64
Author(s):  
Igor S. Zonn ◽  
Andrey G. Kostianoy ◽  
Aleksandr V. Semenov
Keyword(s):  
Central Asia ◽  
Water Resource ◽  
Resource Transfer

Climate change and water resource alteration in Central Asia

2007 ◽  
pp. 75-82
Author(s):  
N Hakimov ◽  
A Lines ◽  
P Elmuratov ◽  
R Hakimov
Keyword(s):  
Climate Change ◽  
Central Asia ◽  
Water Resource

scholarly journals Environmental flows in integrated sustainable water resource management in Tuyamuyin water reservoir, Uzbekistan

2021 ◽  
Vol 937 (3) ◽  
pp. 032024
Author(s):  
U Makhmudova ◽  
A Djuraev ◽  
T Khushvaktov
Keyword(s):  
Climate Change ◽  
Water Supply ◽  
Central Asia ◽  
Water Resource ◽  
Supply System ◽  
Water Supply System ◽  
Aral Sea ◽  
Central Asian ◽  
Sustainable Water Supply ◽  
Semi Arid

Abstract Climate change is causing extreme recession of the mountain glaciers in Central Asia. Also increased evapotranspiration from higher temperatures in arid and semi-arid zones in Uzbekistan. Additionally, climate change has an effect increased exceptional water deficits. In such scenarios Environmental despite for a more sustainable water supply system, available reservoir capacity. Central Asia unlock watershed region, its main rivers are the Amu Darya and the Syr Darya, and its key problems of the region the efficient use of water from these rivers. Supplying water to the Khorezm oasis and Karakalpakstan, Tuyamuyin reservoir is the main water resource. With an increasing population of the region and Aral Sea ecological problems, mounting demand exists for a more sustainable water supply system. Water reservoirs of Central Asian river contribute to the improvement of water resources management in the lower part of the region and thus, play a strategic role in regional water supplication. 70% of Central Asia is arid and semi-arid regions and therefore, water supply for irrigation and population purposes is the main water sector of all Central Asian countries.

scholarly journals Assessing Satellite, Land Surface Model and Reanalysis Evapotranspiration Products in the Absence of In-Situ in Central Asia

2021 ◽  
Vol 13 (24) ◽  
pp. 5148
Author(s):  
Friday Uchenna Ochege ◽  
Haiyang Shi ◽  
Chaofan Li ◽  
Xiaofei Ma ◽  
Emeka Edwin Igboeli ◽  
...  
Keyword(s):  
Central Asia ◽  
Water Resource ◽  
Land Surface ◽  
Water Resource Management ◽  
Cross Validation ◽  
Surface Model ◽  
Tianshan Mountain ◽  
Mountain Range ◽  
Random Errors

Shortfalls in regular evapotranspiration (ET) monitoring and evaluation pose a huge challenge to agricultural water resource distribution in arid Central Asia (CA). In this study, a first detailed regional assessment of GLEAM, ERA5, MERRA2, CLSM and NOAH ET products in CA was performed by systematically implementing the triple collocation (TC) method, in which about 36936 grid cells for each ET data (within a six-triplet design) were collocated, at 0.25° and with monthly resolutions during 2003–2020. The reliability of the strategy adopted was confirmed in four arid biomes using standard evaluation metrics (R, RMSE and BIAS), and by spatiotemporal cross-validation of the six ET triplets across CA. Results show that the systematic TC method produced more robust ET product assessment metrics with reduced RMSEs compared to the initial ET product validation using in-situ, which showed weak-positive correlation and high negative bias-range (i.e., −21.02 ≤ BIAS < 16 mm) in the four arid biomes of CA. The spatial cross-validation by TC showed that the magnitude of ET random errors significantly varies, and confirms the systematic biases with site-scale measurements. The highest ET uncertainties by CLSM (27.43%), NOAH (29.16%), MERRA2 (38.28%), ERA5 (36.75), and GLEAM (41%) were more evident in the shrubland, cropland, grassland, cropland again, and desert biomes, respectively. Moreover, error magnitudes in high altitudes (Tianshan Mountain range) are generally lower than in plain-desert areas. All ET products spatially captured ET dynamics over CA, but none simultaneously outperformed the other. These findings are invaluable in the utilization of the assessed ET products in supporting regional water resource management, particularly in CA.

scholarly journals Simulating Water Resource Availability under Data Scarcity—A Case Study for the Ferghana Valley (Central Asia)

Water ◽  
2014 ◽  
Vol 6 (11) ◽  
pp. 3270-3299 ◽  
Author(s):  
Iuliia Radchenko ◽  
Lutz Breuer ◽  
Irina Forkutsa ◽  
Hans-Georg Frede
Keyword(s):  
Central Asia ◽  
Water Resource ◽  
Resource Availability ◽  
Data Scarcity ◽  
Ferghana Valley
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