Using Water Balance to Analyze Water Availability for Communities ( A Case Study in Some Areas of Bengawan Solo Watershed)

Alif Noor Anna; Kuswaji Dwi Priyono; Suharjo Suharjo; Yuli Priyana

doi:10.23917/forgeo.v30i2.2550

Using Water Balance to Analyze Water Availability for Communities ( A Case Study in Some Areas of Bengawan Solo Watershed)

Forum Geografi ◽

10.23917/forgeo.v30i2.2550 ◽

2016 ◽

Vol 30 (2) ◽

pp. 166 ◽

Cited By ~ 1

Author(s):

Alif Noor Anna ◽

Kuswaji Dwi Priyono ◽

Suharjo Suharjo ◽

Yuli Priyana

Keyword(s):

Water Balance ◽

Water Availability ◽

Water Demand ◽

Research Method ◽

Water Source ◽

Domestic Water ◽

Domestic Water Demand ◽

The Difference ◽

Water Surplus

This study aimed: (a) to determine the general water balance at the Upstream and Midstream of Bengawan Solo Watershed by using Thornthwaite-Mather model, and (b) to determine the fulfillment of domestic water demand in the Upstream and Midstream of Bengawan Solo Watershed. Prevailing climate change has affected the condition of water source in Upstream and Midstream of Bengawan Solo Watershed. One of the impacts was extreme fluctuation of meteorological water availability that might cause flood and drought. Survey was selected as the research method while descriptive quantitative method was used for data analysis. The findings indicated the difference between precipitation and corrected evapotranspiration (P-EP) at the Upstream and Midstream of Bengawan Solo Watershed was between (-11.19 mm) to (78.56 mm). The highest value was obtained by Bambang Sub-watershed and the lowest was Wiroko Temon Sub-watershed. Positive value indicated the water surplus while negative value indicated water deficit. Domestic water demand for local communities was in the range of 50,782,500 liters to 131,690,700 liters, and the level of water availability varied, namely fulfilled and unfulfilled.

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PEMANFAATAN SUMBER DAYA AIR DAS YEH PENET SEBAGAI AIR IRIGASI DAN AIR BAKU PDAM

Jurnal Spektran ◽

10.24843/spektran.2017.v05.i01.p04 ◽

2017 ◽

Vol 5 (1) ◽

Author(s):

I Made Mudiasa ◽

IG. B Sila Dharma ◽

I Ketut Suputra

Keyword(s):

Water Management ◽

Water Balance ◽

Water Availability ◽

Irrigation Water ◽

Water Demand ◽

Water Source ◽

Rotation System ◽

Alternative Plan ◽

Balance Analysis ◽

Water Surplus

Abstract : Tukad Penet is one of the biggest rivers in Bali which is used to support farming and fresh water demand. The increasing of water demand in various sectors such as for irrigation and drink water recently using water from Yeh Penet source shows the over use of its water has caused some conflicts between the use of the water user for irrigation and another use. Therefore, it was needed to review the use of Yeh Penet water to see how big the potential of its water that could be exploited to support the water source demand. The optimal analysis of water usage was carried out in six regional irrigation (DI) used Penet river water such as DI Peneng, DI Kacangan, DI Luwuscarang Sari, DI Penarungan, DI Kapal and DI Munggu. This analysis was based on cropping, planting and water management as well as a maximum water raw demand of the regional company of drinking water (PDAM) in Tabanan and Badung regency. Based on the simulation result, water availability in each irrigation regional (DI) depended on the cropping and planting. It was needed to provide the planting and rotation system for some irrigation regionals in river fluctuation discharge. The deficit of irrigation water balance occurred in DI Peneng, DI Luwuscarang sari, and DI Kacangan. The optimal use of irrigation water in the third irrigation regional was carried out by using planting stimulation and water management. The water balance analysis result at watershed in the part of downstream Penet watershed showed the availability of water surplus occurred in alternative plan I and II. The water balance analysis showed water availability in alternative plan I of a minimum 0.04 million m3 and maximum 1.43 million m3, whereas in alternative plan II the wasted water availability of a maximum 0.25 million m3 and a maximum 1.51 million m3. The potential development of Penet watershed in alternative plan I was 0.67 million m3 (0.52 m3/sec) and in alternative plan II was 0.76 million m3 (0.58 m3/sec) was not able to support the total water demand in Badung and Tabanan regency. Besides, the water source development of Penet watershed only occurred in downstream part of Yeh Penet river to avoid some conflicts of water utilization in Penet watershed.

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Analysis of Regional Water Availability for Domestic Water Demand (Case Study: Malang Regency)

Agromet ◽

10.29244/j.agromet.32.2.93-102 ◽

2018 ◽

Vol 32 (2) ◽

pp. 93

Author(s):

Dinia Putri ◽

. Perdinan

Keyword(s):

Water Availability ◽

Water Demand ◽

Negative Impact ◽

Adaptation Strategy ◽

Dry Season ◽

Climate Extreme ◽

Domestic Water ◽

Domestic Water Demand ◽

Water Condition ◽

Mitigation And Adaptation

<p>The fulfillment of water demands needs to consider climate variability impacts on water availability. A seasonal change from wet to dry may have a negative impact on water availability leading to water scarcity for domestic purposes. Therefore, information on water condition until sub-district level is important. We did water balance approach to analyze water condition especially during dry season in Malang district, East Java for period 2007-2016. Our results showed that several sub-districts faced a serious problem with water deficit condition. During dry season, an increased domestic water demand was not supported by water availability, which caused some villages could not provide basic water for domestic purposes. Further, the research may contribute to support mitigation and adaptation strategy for climate extreme in the region.</p>

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Price specification issues under block tariffs: a Spanish case study

Water Policy ◽

10.2166/wp.2003.0014 ◽

2003 ◽

Vol 5 (3) ◽

pp. 237-256 ◽

Cited By ~ 9

Author(s):

Roberto Martínez-Espiñeira

Keyword(s):

Price Elasticity ◽

Water Demand ◽

Aggregate Data ◽

Climatic Variables ◽

Average Price ◽

Domestic Water ◽

Domestic Water Demand ◽

Demand Functions ◽

Marginal Price

A panel of aggregate data from Spain is used to estimate domestic water demand functions under linear and non-linear tariffs. The use of intra-annual European data constitutes an innovative contribution. The average price per unit of water sold is compared with other price specifications that have been suggested to analyze aggregate data. Average-price elasticity estimates lie between -0.51 and -0.67 and are substantially larger than marginal-price elasticity estimates. Elasticities appear inversely correlated to the size of free allowances covered by minimum charges. Climatic variables seem to affect use, although less than in wealthier and drier areas.

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Analisis Neraca Air Permukaan Sub DAS Krueng Khee Kabupaten Aceh Besar

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v1i1.1183 ◽

2016 ◽

Vol 1 (1) ◽

pp. 1002-1008

Author(s):

Arini Putri ◽

Susi Chairani ◽

Ichwana Ichwana

Keyword(s):

Surface Water ◽

Water Balance ◽

Water Potential ◽

Water Availability ◽

Water Demand ◽

Research Area ◽

Domestic Water ◽

Input Surface ◽

Balance Analysis ◽

Surface Water Storage

Pengetahuan mengenai ketersediaan air dan kebutuhan air sangat penting untuk mengetahui keseimbangan air. Perhitungan neraca air permukaan dilakukan untuk mengetahui kemampuan ketersediaan air permukaan pada Sub DAS Krueng Khee untuk memenuhi kebutuhan air domestik dan irigasi. Data klimatologi dan sosial pada tahun 2014 yang digunakan pada penelitian. Berdasarkan penelitian ini diketahui potensi air permukaan Sub DAS Krueng Khee berasal dari air sungai dan curah hujan efektif. Jumlah potensi air dari air sungai pada tahun 2014 adalah 16.891.372,8/tahun. Ketersediaan air yang berasal dari curah hujan efektif digunakan untuk memenuhi kebutuhan kebutuhan air irigasi. Kebutuhan air yang terdapat di Sub DAS Krueng Khee meliputi: kebutuhan air domestik, irigasi, peternakan, dan industri. Analisis neraca air permukaan dilaksanakan dengan mengurangkan input air permukaan dengan output air pada daerah penelitian. Keseimbangan air permukaan (surface water balance) yang dicapai untuk memenuhi kebutuhan air di Sub DAS Krueng Khee pada tahun 2014 adalah: Perubahan simpanan air permukaan ( maksimum yaitu 4.279.181,10 /bulan pada bulan Januari (surplus), rata-rata yaitu 1.255.403,945 /bulan dan minimum yaitu 383.486,90/bulan pada bulan Oktober. Sepanjang tahun 2014 tidak terjadi kekurangan ketersediaan air untuk memenuhi kebutuhan air total Sub DAS Krueng Khee.Knowledge about water availability and water demand is significant to water balance awareness. Accounting surface water balance is to find out capability of surface water availability in Sub Watershed Krueng Khee in order to fulfill domestic and irigation water demand. Chilmatology and social data in year 2014 were used in this research. Based on the result the source of surface water potential in Sub Watershed Krueng Khee source are river water and effective rainfall. The amount of water potential from the river in year 2014 was 16.891.372,8/year. The water availability from effective ranfall used to fulfill irigation. Water demand in Sub wathershed Krueng Khee divers from domestic water demand, irigation, livestock and industry. Surface water balance analysis perfomed by subtracting input surface water with the water output in the research area. Surface water balance achieved to fulfill water demand in Sub Watershed Krueng Khee in 2014: surface water storage ( maximum was 4.279.181,10 /month in January (surplus), average was 1.255.403,945 / month and minimum was 383.486,90/month in October. Throughout the year 2014 there was no shortage of water availability to fulfill the water demand in Sub Wathershed Krueng Khee

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Water Availability Analysis of Sangkulirang-Mangkalihat Karst in Kutai Timur Regency, East Kalimantan Province

International Journal of Scientific Research in Science Engineering and Technology ◽

10.32628/ijsrset207124 ◽

2020 ◽

pp. 153-155

Author(s):

Prof Irwan ◽

Sigit Hardwinarto ◽

Muhammad Sumaryono ◽

Lambang Subagiyo

Keyword(s):

Water Availability ◽

Water Demand ◽

Karst Area ◽

Annual Rainfall ◽

Agricultural Water ◽

Domestic Water ◽

Domestic Water Demand ◽

Availability Analysis ◽

East Kalimantan ◽

Water Conditions

The Sangkulirang-Mangkalihat area has tremendous natural resources one of them is water resources. The availability of water in karst area needs to be recognizing in order to fulfill the water demand of the community around karst area. This study aims to identify water availability and water demand in karst area. Water availability identified by Thornthwaite-Mather water balance method and calculation of water demand performed for domestic water demand, agricultural water demand and livestock water demand. The result shows that annual rainfall of karst area is 2036 mm/year. The amount of water availability is 177.6 million m3/year, while domestic water demand is 1.33 million m3/year, agricultural water demand is 73 million m3/year and livestock water demand is 142.8 thousand m3/year. Comparison between the availability of water and the water demand of karst area shows that the water conditions are still able to meet the needs of the community.

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Analisis Neraca Air Permukaan DAS Ciliman

Jurnal Ilmu Lingkungan ◽

10.14710/jil.17.3.452-464 ◽

2019 ◽

Vol 17 (3) ◽

pp. 452

Author(s):

Isvan Taufik

Keyword(s):

Water Balance ◽

Water Availability ◽

Water Demand ◽

Water Discharge ◽

Population Data ◽

Water Requirement ◽

Domestic Water ◽

Water Requirements ◽

Watershed Area ◽

Rainfall Analysis

Water balance is an estimate of the availability and needs of water in a watershed area. The water balance is very important considering the human need for water resources is a major requirement. The purpose of this study includes; (1) Analyzing the distribution of the influence of rainfall observation stations in each of the Ciliman sub-watersheds, (2) Analyzing the mainstay discharge in each Ciliman sub-watershed, and (3) Analyzing the potential availability of raw water in the Ciliman watershed. The types of data used in this study are secondary data including: (1) monthly rainfall data from 4 rainfall observation stations included in the Ciliman watershed, (2) climatological data from BMKG Taktakan Serang Station in 1998-2015, (3) Map of Watershed Ciliman and (4) Population data. Data analysis methods used include; regional rainfall analysis, analysis of water availability (evapotranspiration analysis, Mock model analysis), and analysis of water requirements. The results of the analysis showed that the highest rainfall occurred in January, and the lowest rainfall occurred in August. Overall, the water available in the Ciliman watershed is sufficient with the peak occurring at the beginning and end of the year. Water availability is estimated based on surface water discharge, where peak discharge occurs in January and minimum discharge occurs in August. The water balance in general in the Ciliman watershed is quite high with the highest water debit of 61.75 m3/s occurring in March and the lowest (minimum) discharge around 5.26 m3/s in August. The total water requirement for the Ciliman watershed area is 38.86 m3/s, consisti of; Water demand for irrigation is the highest water requirement reaching 37.96 m3 s with a total irrigated area reaching 5,423 hectares. Domestic water needs are 0.48 m3/s with a total population of 314,524 people served. Water requirements for industry are 0.000040 m3/s or relatively relatively small. While the water demand for the Tanjung Lesung Special Economic Zone is 0.42442 m3/s.

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Long-Term Projections of Domestic Water Demand: A Case Study of London and the Thames Valley

Journal of Water Resources Planning and Management ◽

10.1061/(asce)wr.1943-5452.0001088 ◽

2019 ◽

Vol 145 (11) ◽

pp. 05019017 ◽

Cited By ~ 4

Author(s):

Rizwan Nawaz ◽

Philip Rees ◽

Stephen Clark ◽

Gordon Mitchell ◽

Adrian McDonald ◽

...

Keyword(s):

Water Demand ◽

Domestic Water ◽

Domestic Water Demand

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ANALISIS NERACA AIR PADA SUB DAERAH ALIRAN SUNGAI CODE YOGYAKARTA

PROKONS Jurusan Teknik Sipil ◽

10.33795/prokons.v15i1.276 ◽

2021 ◽

Vol 15 (1) ◽

pp. 8

Author(s):

Alvin Pradana ◽

Ratna Septi Hendrasari

Keyword(s):

Water Balance ◽

Water Deficit ◽

Water Availability ◽

Water Demand ◽

Human Life ◽

Irrigation Planning ◽

Water Shortages ◽

Thiessen Polygon ◽

Balance Analysis ◽

Water Surplus

Abstract Water is one of the sources of human life. Population growth continues to increase and results in higher utilization of water sources. This will certainly affect the availability of water in the city of Yogyakarta. Water balance is a comparison between the water availability potential and the water demand of a place in a certain period. Water balance analysis is useful for knowing the amount of excess water (surplus) or lack of water (deficit) so that water use can be managed as well as possible. The calculation was done by analyzing the 10-year rainfall data using the Thiessen Polygon method to obtain the mean rainfall value. The available debit was calculated using the F.J. Mock method. The dependable discharge was calculated with 80% reliability from the 10-year debit data. The debit data was sorted from the largest to the smallest value, so that a probability value of 80% was obtained from the interpolation of the data sequence. Water demand was calculated based on the irrigation planning standard (KP-01). The results of the study show that the average water availability in the sub-watershed of Code River Yogyakarta was 527.92lt/sec. Based on the results of the analysis, the highest water deficit occurred in the first October at 278.40 l/sec and the lowest deficit was in the second July at 73.01 l/sec. However, the availability of water in certain months was quite abundant. Therefore, it is necessary to do a special study so that water is not wasted and can be used to cover water shortages in dry months. Keywords: Water balance, Water availability, Water demand, Code river, Thiessen polygon, FJ mock

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A Panel Data Estimation of Domestic Water Demand with IRT Tariff Structure: The Case of the City of Valencia (Spain)

Sustainability ◽

10.3390/su13031414 ◽

2021 ◽

Vol 13 (3) ◽

pp. 1414

Author(s):

Mónica Madonado-Devis ◽

Vicent Almenar-Llongo

Keyword(s):

Panel Data ◽

Water Demand ◽

Large Data ◽

Demand Elasticity ◽

Average Price ◽

Domestic Water ◽

Domestic Water Demand ◽

Household Level ◽

Price Structure ◽

The City

In urban water provisioning, prices can improve efficiency, contributing to the achievement of the environmental objective. However, household responses to price changes differ widely based on the household characteristics. Analyses performed at the aggregate level ignore the implications of water demand incentives at the individual household level. A large data sample at the household level enables estimation of econometric models of water demand, capturing the heterogeneity in domestic consumption. This study estimated the domestic water demand in the city of Valencia and its elasticity, along with the demands of its different districts and neighbourhoods (intra-urban scale analysis). Water price structure in Valencia is completely different from that of other Spanish cities: it is a price structure of increasing volume (increasing rate tariffs, IRT). For this estimation, from a microdata panel at the household level, the demand function with average prices for the period 2008–2011 was estimated using panel data techniques including a fixed effect for each neighbourhood. The domestic water demand elasticity at the average price in Valencia was estimated at −0.88 (which is higher than that estimated for other Spanish cities). This value indicates an inelastic demand at the average price of the previous period, which can cause consumers to overestimate the price and react more strongly to changes.

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