scholarly journals Water balance systems of lakes Yalpuh – Kugurluy (in the period 2006-2014 yy.)

2017 ◽  
pp. 176-183
Author(s):  
E.D. Gopchenko ◽  
J.S. Medvedєva ◽  
J.A. Makedonskay
Keyword(s):  
Water Balance ◽  
Balance Equation ◽  
Water Regime ◽  
Water Exchange ◽  
Water System ◽  
Equation System ◽  
Danube River ◽  
Water Balance Equation ◽  
Quality Of Water ◽  
Optimal Functioning

Introduction. Violation of natural water exchange in the lake Yalpug - Kugurluy led to the deterioration of water quality in lakes and their shoaling and silting of lakes and overgrown with reeds. Purpose. Water system study mode lakes Yalpug - Kugurluy based on water balance equation and the definition and analysis components of the water balance equation system oz.Yalpuh - Kugurluy. Based on this analysis needs to develop to offer optimal functioning oz.Yalpuh - Kugurluy, in terms of its tiered and hydrochemical regimes as well as perform mathematical modeling of reservoir operation in different administrative actions. Methods. The article used the methods of analysis in theory, the method of water balance. Results. Established that the greatest impact on the water regime of lakes in incoming parts are precipitation, the expenditure - the evaporation from the water surface of lakes and water exchange мagee system of lakes Yalpug - Kugurluy and Danube river. Conclusion. It should be a more detailed investigation of the water regime of lakes, the adoption of recommendations for the improvement of water exchange in lakes as well as improve the quality of water for agricultural purposes.

scholarly journals Retention time of lakes in the Larsemann Hills oasis, East Antarctica

2020 ◽  
Author(s):  
Elena Shevnina ◽  
Ekaterina Kourzeneva ◽  
Yury Dvornikov ◽  
Irina Fedorova
Keyword(s):  
Water Balance ◽  
Retention Time ◽  
Balance Equation ◽  
Water Exchange ◽  
Warm Season ◽  
East Antarctica ◽  
Water Balance Equation ◽  
Larsemann Hills ◽  
Lake Volume ◽  
Field Campaigns

Abstract. The study gives first estimates of water transport scale for five lakes located in the Larsemann Hills oasis (69º23' S, 76º20' E) in the East Antarctica. We estimated the lake retention time (LRT) as a ratio of the lake volume to the income and outcome terms of a lake water balance equation. The LRT was evaluated for lakes of epiglacial and land-locked types, and it was assumed that these lakes are monomictic with water exchange existing during a warm season only. We used hydrological observations collected in 4 seasonal field campaigns to evaluate the LRT from the outcome and income terms of the water balance equation. For the epiglacial lakes Progress/LH57 and Nella/Scandrett/LH72, the LRT was estimated of 12–13 and 4–5 years, respectively. For the land-locked lakes Stepped/LH68, Sara Tarn/LH71 and Reid/LH70, our results show a big difference in the LRT calculated from the outcome and income components of the water balance equation. The LRT for these lakes vary depending on the methods and errors inherent to them. We suggested to rely on the estimations from the outcome surface runoff since they are based on the hydrological measurements with better quality. Lake Stepped/LH68 exchange water within less then 1.5 years. Lake Sara Tarn/LH71 and Lake Reid/LH70 are the endorheic ponds with the water exchange through mostly evaporation, their LRT was estimated as 21–22 years and from 8–9 years, respectively. To improve the estimates of the LRT, the hydrological observations are needed to monitor the lakes and streams during the warm season with the uniform observational program.

scholarly journals Retention time of lakes in the Larsemann Hills oasis, East Antarctica

2021 ◽  
Vol 15 (6) ◽  
pp. 2667-2682
Author(s):  
Elena Shevnina ◽  
Ekaterina Kourzeneva ◽  
Yury Dvornikov ◽  
Irina Fedorova
Keyword(s):  
Water Balance ◽  
Retention Time ◽  
Balance Equation ◽  
Water Exchange ◽  
Warm Season ◽  
East Antarctica ◽  
Water Balance Equation ◽  
Larsemann Hills ◽  
Lake Volume ◽  
Field Campaigns

Abstract. This study provides first estimates of the water transport timescale for five lakes located in the Larsemann Hills oasis (69∘23′ S, 76∘20′ E) in East Antarctica. We estimated lake retention time (LRT) as a ratio of lake volume to the inflow and outflow terms of a lake water balance equation. The LRT was evaluated for lakes of epiglacial and landlocked types, and it was assumed that these lakes are monomictic, with water exchange occurring during the warm season only. We used hydrological observations collected in four seasonal field campaigns to evaluate the LRT. For the epiglacial lakes Progress and Nella/Scandrett, the LRT was estimated at 12–13 and 4–5 years, respectively. For the landlocked lakes Stepped, Sarah Tarn and Reid, our results show a great difference in the LRT calculated from the outflow and inflow terms of the water balance equation. The LRTs for these lakes vary depending on the methods and errors inherent to them. We relied on the estimations from the outflow terms, since they are based on hydrological measurements with better quality. Lake Stepped exchanged water within 1.5 years. Sarah Tarn and Lake Reid are endorheic ponds, with water loss mainly through evaporation. Their LRTs were estimated as 21–22 and 8–9 years, respectively. To improve the LRT estimates, special hydrological observations are needed to monitor the lakes and streams during the warm season with a uniform observational programme.

The Effectiveness of Evapotranspiration Systems in Disposing of Wastewater in Remote Aboriginal Communities in Northwest Australia

1991 ◽  
Vol 23 (10-12) ◽  
pp. 1825-1833
Author(s):  
D. R. McGrath ◽  
G. E. Ho ◽  
K. Mathew
Keyword(s):  
Water Balance ◽  
Water Loss ◽  
Balance Equation ◽  
Eucalyptus Camaldulensis ◽  
Bare Soil ◽  
Pan Evaporation ◽  
Aboriginal Communities ◽  
Water Balance Equation ◽  
Northwest Australia

The potential usage of Evapotranspiration (ET) systems in remote Aboriginal communities was investigated. ET system sizing requirements were determined from the water balance equation. Water loss from lysimeters planted with trees (Eucalyptus camaldulensis) or lawn grass and from bare soil and gravel was monitored over several months and compared to pan evaporation measured during the same period. It was found that ET from bare soil and grass followed similar trends to pan evaporation, ranging from 30-60% of pan evaporation for soil and from 60-80% of pan evaporation for grass. ET rates increased in the tanks planted with trees as the plants grew and exceeded pan evaporation rates. Evaporation from gravel-filled lysimeters was low, being as little as 10% of pan evaporation.

scholarly journals Global evapotranspiration over the past three decades: estimation based on the water balance equation combined with empirical models

2012 ◽  
Vol 7 (1) ◽  
pp. 014026 ◽  
Author(s):  
Zhenzhong Zeng ◽  
Shilong Piao ◽  
Xin Lin ◽  
Guodong Yin ◽  
Shushi Peng ◽  
...  
Keyword(s):  
Water Balance ◽  
Balance Equation ◽  
Empirical Models ◽  
Water Balance Equation ◽  
The Past

Stochastic Modeling of Aquifer Level Temporal Fluctuations Based on the Conceptual Basis of the Soil-Water Balance Equation

Soil Science ◽  
2016 ◽  
Vol 181 (6) ◽  
pp. 224-231 ◽  
Author(s):  
Emmanouil A. Varouchakis ◽  
Katerina Spanoudaki ◽  
Dionissios T. Hristopulos ◽  
George P. Karatzas ◽  
Gerald A. Corzo Perez
Keyword(s):  
Water Balance ◽  
Soil Water ◽  
Stochastic Modeling ◽  
Balance Equation ◽  
Soil Water Balance ◽  
Conceptual Basis ◽  
Water Balance Equation ◽  
Temporal Fluctuations

Soil water balance and evapotranspiration of irrigated cotton

1967 ◽  
Vol 69 (1) ◽  
pp. 95-101 ◽  
Author(s):  
W. R. Stern
Keyword(s):  
Soil Moisture ◽  
Water Balance ◽  
Soil Water ◽  
Balance Equation ◽  
Dry Season ◽  
Soil Water Balance ◽  
Wet Season ◽  
Water Balance Equation ◽  
Soil Moisture Storage ◽  
Moisture Storage

In a series of five irrigated cotton sowings (T2, T7, T9, T11, T14) evapotranspiration (Et) was determined for the period between October 1961 and October 1962 by observing frequently the changes in soil moisture storage, calculating through drainage, and solving for evapotranspiration in the water balance equation. Thus a water balance was obtained for each sowing extending over the entire crop.The average evapotranspiration in wet season sowings was of the order of 6·5 mm day−1 and in dry season sowings of the order of 4·5 mm day−1. The highest evapotranspiration values ranged between 10 and 12 mm day−1 in T2, T7 and T9 and between 7 and 9·5 mm day−1 in T11 and T14.

Sign in / Sign up

Export Citation Format

Share Document