Global perspective on hydrology, water balance, and water resources management in arid basins

2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
Yanjun Shen ◽  
Yaning Chen
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resources Management ◽  
Global Perspective ◽  
Resources Management

scholarly journals Water resources management in the watershed of Volvi Lake

2013 ◽  
Vol 7 (3) ◽  
pp. 379-385
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resources Management ◽  
Management Program ◽  
Corporate Management ◽  
Northern Greece ◽  
Resources Management ◽  
Management Plans ◽  
Rational Management ◽  
The Creation

The decrease of available water resources, the water quality degradation as well as the rapid increase of population combined with the growth of human activities, impose today the development of a science that concerns the Management of Water Resources. Lake Volvi faces a lot of problems, the most important being the water level drop, which is mostly due to the big quantities of water flowing through to Rihios River and to the wrong management of irrigation water. The study area of the present research consists of the watershed of Lake Volvi, situated in Northern Greece, 39 km away from the city of Thessaloniki. The objective of this study is the estimation of the water balance of the hydrologic basin of Lake Volvi with a Corporate Management program, using Visual Fortran and the creation of scenarios for better management of the water resources of the region. Lake Volvi is situated next to Lake Koronia, both of them belonging to a wider region that forms the geological basin of Mygdonia. Lake Volvi is the recipient of the water draining from Lake Koronia. The water that drains from Lake Volvi is discharged into the gulf of Strymonikos through Rihios River. Firstly, a close analysis is attempted for the estimation of the water balance of the entire hydrologic basin of Lake Volvi with the method of Turc, which is used widely throughout the world. Next, in order to simulate the lake, an administrative model is used, written in Visual Fortran. A rational management of the hydrological elements of the region is attempted with the creation of four alternative scenarios. After the execution of the Corporate Management program, the results show that the main problem for Lake Volvi is the water leaking to Rihios River. Moreover, the research also shows that it is important to reduce the water used for irrigation. As a final result, it is an imperative need to develop water resources management plans for the restoration of the entire region.

Impact of thinning on the water balance of a catchment in a Mediterranean environment

2003 ◽  
Vol 79 (2) ◽  
pp. 301-306 ◽  
Author(s):  
Giovanni Callegari ◽  
Ennio Ferrari ◽  
Giuseppe Garfì ◽  
Francesco Iovino ◽  
Antonella Veltri
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resources Management ◽  
Basal Area ◽  
Mediterranean Area ◽  
Small Catchment ◽  
Resources Management ◽  
Before And After ◽  
Pinus Laricio ◽  
The Impact

A study on the impact of silvicultural practices on the water balance was carried out in a watershed in Calabria, southern Italy, the prevalent cover of which is Calabrian pine stands. A thinning was carried out in 1993, which removed 50% of the total number of trees (about 30% of the basal area), and the catchment hydrological response before and after the intervention was compared. After thinning, differences were observed in yearly runoff, with a significant increase in groundwater flow during spring and summer. In light of this evidence, we assume that silvicultural interventions can contribute significantly to improve water resources management, particularly in regions with a long dry season, as in the Mediterranean area. Key words: Pinus laricio, runoff, small catchment, thinning, water resources management

scholarly journals Application of networked water balance model in refined management of steel industrial park

2021 ◽  
Author(s):  
Yurong Wang ◽  
Linyuan Li ◽  
Wentao He ◽  
Xinli Zhang ◽  
Xuanjin Li ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resources Management ◽  
Water Consumption ◽  
Industrial Park ◽  
Pipe Network ◽  
Iron And Steel ◽  
Resources Management ◽  
Production Processes ◽  
Industrial Parks

Abstract Water shortages has become a major constraint on China's industrial development. Iron and steel industrial parks have a huge demand for water resources and complex production technologies. Therefore, it is very important to study the distribution, transfer and loss of water resources in industrial parks in order to improve the ability of refined water resources management. The purpose of this study is to reveal the water flow in industrial parks by using the principle of water balance and to provide a method for quantification and characteristic recognition of water resources in industrial production processes. In this research, an iron and steel industrial in North China was chosen as the case study. In order to calculate the water balance of the whole steel production processes, the industrial park was divided into 4 levels and 110 water units according to the pipe network system and production processes. Based on the results of multi-level and multi-node water balance, this paper analyzed the water intake structure and water consumption structure of industrial parks, and provided the methods to optimize the allocation of water resources and reduce the consumption of fresh water in industrial production process. The results of the study showed that the energy department accounted for 60.8% of the total water withdrawal of the industrial park. There was 6,249 m3/day of fresh water in the industrial park, which can be replaced by reclaimed water from urban sewage. Evaporation and pipe network leakage were the main water consumption factors in the steel park, which contribute 91.3% of the water consumption. Under the guidance of the research results, the evaporation water consumption of the industrial park was reduced by 8,412 m3/day, and pipe leakage was reduced by 600 m3/day. This article demonstrates the application of water balance principle in complex water use systems, which is helpful for water resources management based on water use process.

scholarly journals Water permit integration in the Paraguaçu River Watershed (Bahia)

RBRH ◽  
2017 ◽  
Vol 22 (0) ◽  
Author(s):  
Gisele Oliveira Mota da Silva ◽  
Yvonilde Dantas Pinto Medeiros ◽  
Andrea Sousa Fontes ◽  
Suzana Maria Gico Lima Montenegro
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resources Management ◽  
Balance Control ◽  
Water Discharge ◽  
The State ◽  
Water Withdrawal ◽  
River Watershed ◽  
Resources Management ◽  
The Moment

ABSTRACT In Brazil, water regulatory agencies adopt two different methodologies of equating water balance for the purposes of water permits: one that considers the uses for surface water withdrawal and waste water discharge in an integrated way, and one that analyses these two uses as demands that do not relate with each other. In the state of Bahia, this analysis disregards the integration of quantitative and qualitative uses. Furthermore, at the moment, there are not internal procedures that enable the integration of the water permit with other water resources management instruments. In this context, the aim of this work consists of analysing the advantages and limitations of the implementation of the equating methodology that integrates the quali-quantitative analysis of the water balance for purposes of water permit, compared with current procedures in the state of Bahia. For this analysis, a diagnosis of use of the Paraguaçu River Watershed (BHRP) was developed through the Water Balance Control System (SCBH), simulating the two methodologies and comparing potential water use index. The results reinforce that the methodology of equating the quali-quantitative water balance does not represent an advance for water resources management when the other instruments, present in the State Water Resources Policy, are not integrated with the water permit.

scholarly journals Remote Sensing and Geospatial Models to Simulate Land Use and Land Cover and Estimate Water Supply and Demand for Water Balancing in Phuket Island, Thailand

2021 ◽  
Vol 11 (22) ◽  
pp. 10553
Author(s):  
Nattapong Puangkaew ◽  
Suwit Ongsomwang
Keyword(s):  
Remote Sensing ◽  
Water Resources ◽  
Water Balance ◽  
Water Supply ◽  
Water Resources Management ◽  
Water Scarcity ◽  
Water Demand ◽  
Water Requirements ◽  
Resources Management ◽  
Ecological Water Requirements

Currently, Phuket Island is facing water scarcity because water demand for consumption was approximately 51 million m3/year, whereas water supply was only about 46 million m3/year. Thus, the study of water supply, demand and balancing are important for effective water resources management. This study aims to simulate the LULC data using the CLUE-S model, estimate water supply using the SWAT model, and calculate water demand using a water footprint basis for water balancing on the Island. In addition, tourist water demand was separately estimated under normal and new normal conditions (COVID-19 pandemic) to fit with the actual situation at national and international levels. Water balance results with the consideration of ecological water requirements suggest that a water deficit occurs every year under the dry year scenario in normal and new normal conditions. In addition, the monthly water balance indicates that a water deficit occurs in the summer season every year, both without and with the consideration of ecological water requirements. Consequently, it can be concluded that remote sensing data with advanced geospatial models can provide essential information about water supply, demand, and balance for water resources management, particularly water scarcity, in Phuket Island in the future. Additionally, this study’s conceptual framework and research workflows can assist government agencies in examining water deficits in other areas.

DWBmodelUN: an R-package for the hydrological model Dynamic Water Balance

2020 ◽  
Author(s):  
Camila García-Echeverri ◽  
Nicolás Duque-Gardeazabal ◽  
Carolina Vega-Viviescas ◽  
Pedro Arboleda-Obando ◽  
David Zamora
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resources Management ◽  
Hydrological Model ◽  
R Package ◽  
Tropical Region ◽  
Model Parameters ◽  
Mountain Range ◽  
Time Step ◽  
Resources Management

<p>Evapotranspiration (ET) is one of the most important factors for the water budget and physical processes in the tropical region. This variable affects the atmospheric water and it is important for its capacity to control precipitation, including its influence on absorption and reflection of solar and terrestrial radiation. In the tropical context ET is a relevant process, where the condensation of large amounts of water vapor leads to the release of latent heat energy. In order to understand ecohydrological and climatic synergies and interactions in the tropical basins, different models have tried to represent the hydrological processes in time and space. But most of these models depend on variables that should be measured in situ and are rarely available or limited in the tropical countries. This inevitably requires the model to be simple enough and the parameters can be estimated from climate and basin characteristics. In this regard, Zhang et al. (2008) developed a hydrological model Dynamic Water Balance (DWB). DWB is a semi-distributed model supported in the Budyko framework, which uses partition curves to distribute water to a number of components based on water availability and demand concepts. In general, the model assumes the control over the water balance is mostly dominated by the precipitation (P) and potential evapotranspiration. </p><p>The hydrologic structure of DWB consists of two tanks, soil moisture store and groundwater store, and adjust its mathematical relations through the optimization of four parameters. Due to its simplicity and strong concepts, DWB had been implemented successfully in several types of basins around the globe (Rodriguez et al., 2019).</p><p>This work presents DWBmodelUN, a hydrological R-package with the implementation of DWB in a regular mesh at a monthly time step. DWBmodelUN contains 12 functions related to data entry pre-processing, mathematical development of DWB, calibration algorithm Dynamical Dimension Search and an interactive graphical  module. In overall terms, DWBmodelUN requires: (i) basin geographic data (defines the spatial resolution of the modelling), (ii) hydro-meteorological entry data (P, Temperatute, Streamflow) in raster format, (iii) initial values for the model parameters and (iv) setup data such as warm up, calibration and validation periods. </p><p>In addition, this package includes a practical example of application in Sogamoso River Basin, located at the Oriental mountain range of Colombia.  Therefore, data sets with hydrological, meteorological and setup information were incorporated within the package.</p><p>This tool intents to spread  the DWB model and facilitate its implementation in more basins. In this context, to execute DWBmodelUN users do not need extensive programming skills and the R-package was thought for easily adaptability.</p><p><strong>References</strong></p><p>Rodríguez, E., Sánchez, I., Duque, N., Arboleda, P., Vega, C., Zamora, D., … Burke, S. (2019). Combined Use of Local and Global Hydro Meteorological Data with Hydrological Models for Water Resources Management in the Magdalena - Cauca Macro Basin – Colombia. Water Resources Management. </p><p>Zhang, L., Potter, N., Hickel, K., Zhang, Y., & Shao, Q. (2008). Water balance modeling over variable time scales based on the Budyko framework – Model development and testing. Journal of Hydrology, 360(1–4), 117–131. </p>

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