scholarly journals Analysis of the availability of water resources using the Thornthwaite-Matter water balance method with dual reservoir development in residential locations in Tangerang regency

2022 ◽  
Vol 955 (1) ◽  
pp. 012028
Author(s):  
D Mulyadi ◽  
S I Wahyudi ◽  
Soedarsono

Abstract Many settlements still use groundwater sources and this can cause a decrease in the ground water level. There is a need for alternative sources of water to meet the water needs of settlements. The purpose of this study was to determine the magnitude of the surplus or deficit of water in Tangerang Regency, Indonesia and also to determine the amount of water demand for the population in the region. Therefore, it is necessary to analyze the planning of dual reservoirs in providing groundwater for residential areas in overcoming the problem of drought in the dry season. This research method uses Thornthwaite-Matter water balance analysis and multiple reservoir design planning. The results showed that the estimated water surplus occurred from January to April with a magnitude between 25.07 mm to 186.09 mm. The water deficit occurs from July to October with a magnitude between 127 mm to 219 mm. The pattern of water consumption in the household is used as a reference for making reservoirs to maintain the availability of air in residential areas. The dual reservoir will be equipped with sensors that can help determine the water level so that it is easy to detect water needs and can prevent water wastage.

2016 ◽  
Vol 30 (2) ◽  
pp. 166 ◽  
Author(s):  
Alif Noor Anna ◽  
Kuswaji Dwi Priyono ◽  
Suharjo Suharjo ◽  
Yuli Priyana

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. 


2017 ◽  
Vol 5 (1) ◽  
Author(s):  
I Made Mudiasa ◽  
IG. B Sila Dharma ◽  
I Ketut Suputra

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.


2015 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Fadjry Djufry

<div data-canvas-width="358.44029759999995">Water balance modeling is one approach that can be used to predict the dynamics of soil water content for plant growth, so it can calculate the amount of crop water requirements, particularly at critical periods during which the soil moisture content is very low and in normal circumstan ces. The experiment was</div><div data-canvas-width="377.52128063999993">conducted April-November 2010 in Merauke district of Papua provi nce. The collect ion of clim ate data (rainfall, temperature, humidity), land information</div><div data-canvas-width="377.97478992">(based on soil type and land use map, primarily to det ermine water holding ca pacit y and root z one depthof the soils). Land water balance analysis was con ducted for each a nalysi s of distri cts using Thornthwaite and Mather (1957). Furthermore, the results of water balance of land was mapping used the geographic information system (GIS) method for knowing the districts that have the periods of water deficit or water surplus. The results showed that the dom inant patterns of rai nfall in t he district of Merauke is pattern A is a pattern that suggests that there is a clear di fferen ce between the a mount of rai nfall duri ng th e rain y sea son t o dry season. Merauke district experienced a period of water deficit of about 4-7 months for a year. Sub districts that have a period and a high amount of water deficit isKuprik for 7 consecutive months. Sub districts that have a short period of deficit 4 months is Jagebob, Kimaan and Muting. The potential for planting food crops in Merauke district ranges from 5-7 months. The surplus per iod i s about 3-6 mont hs of November to May/June. Sub districts that have a longer period surplus isJagebob and Kimaant is 6 months. The most of the sub districts (6 sub districts) in the Merauke district</div><div data-canvas-width="377.8404167999999">has a surplus of water&gt; 1000 mm / year. There are only two sub districts that have surplus water &lt;1000 mm / year is Kupri k and Sota. Sub distri cts t hat</div><div data-canvas-width="377.5044839999999">obtain high water surplus for the year is Semangga. Pot ential of th e short growing season found in Kuprik (3 months) while the potential of the growing</div><div data-canvas-width="377.52128063999993">season is long (6 months) in almost every sub district (Semangga, Okaba, Muting Kimaan, and Sota). Water bal ance model is developed en ough valid for</div><div data-canvas-width="345.38930831999994">predicting soil water availability and timing of food crop planting in Merauke district of Papua province </div>


2021 ◽  
Vol 15 (1) ◽  
pp. 8
Author(s):  
Alvin Pradana ◽  
Ratna Septi Hendrasari

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


Author(s):  
Anistia Malinda Hidayat ◽  
Aryo Prasetyo Mulyo ◽  
Audia Azizah Azani ◽  
Diar Aofany ◽  
Ricky Nadiansyah ◽  
...  

<p class="AbstractEnglish"><strong>Abstract:</strong> As a natural resource that is vital in supporting human life, the evaluation of the availability of water resources is an urgency in determining and projecting the condition of water surplus or deficit in a Wilayah. There are various methods in evaluating the availability of water resources in an area, one method that has a high level of significance is the Thornthwaite Mather water balance method. Water balance analysis was carried out in 3 Wilayahs in Java Island which have monsoonal rain types, including Bandung, Begawan Solo watershed, and Pasuruan. The results of the evaluation of the availability of water resources in Bandung show a surplus condition of water in the rainy season period and deficit in the dry season period. Meanwhile, the water balance analysis in Solo shows deficit conditions in all areas covered by the Bengawan Solo watershed. Water balance analysis in Pasuruan Regency shows the same pattern as the Bandung area, where there is a surplus condition in the rainy season and deficits in the dry season period. While the results of the projection of the availability of water resources show varying results in the three Wilayahs, where there is generally an increase in the number of Wilayahs experiencing water deficits. Based on these conditions, water conservation efforts need to be formulated, both by the community and the local government.</p><p class="KeywordsEngish"><strong>Abstrak:</strong> Sebagai sumber daya alam yang sangat vital dalam menunjang kehidupan manusia, evaluasi ketersediaan sumber daya air merupakan sebuah urgensi dalam menentukan serta memproyeksikan kondisi surplus atau defisit air di suatu wilayah. Terdapat berbagai metode dalam mengevaluasi ketersediaan sumber daya air di suatu wilayah, salah satu metode yang memiliki tingkat signifikansi tinggi adalah metode neraca air Thornthwaite Mather. Analisis neraca air dilakukan pada 3 wilayah di Pulau Jawa yang memiliki tipe hujan monsunal, meliputi Bandung, DAS Begawan Solo, dan Pasuruan. Hasil evaluasi ketersediaan sumber daya air di Bandung menunjukkan kondisi surplus air pada periode musim penghujan dan defisit pada periode musim kemarau. Sementara itu, analisis neraca air di Solo menunjukkan kondisi defisit pada seluruh area yang tercakup dalam DAS Bengawan Solo. Analisis neraca air di Kabupaten Pasuruan menunjukkan pola yang sama dengan wilayah Bandung, dimana terjadi kondisi surplus pada periode musim penghujan dan defisit pada periode musim kemarau. Sedangkan hasil proyeksi ketersediaan sumber daya air menunjukkan hasil yang bervariasi pada ketiga wilayah, dimana secara umum terjadi peningkatan jumlah wilayah yang mengalami defisit air. Berpijak pada kondisi tersebut, upaya-upaya konservasi air perlu segera dirumuskan, baik oleh masyarakat maupun pemerintah daerah setempat.</p>


2008 ◽  
Vol 6 (2) ◽  
Author(s):  
Baina Afkril

<p>Area studi terletak di bagian tenggara Dataran Tinggi Blackwood, Australia Barat mencakup 71 km<sup>2</sup>. Akifer Yarragadee di daerah studi utamanya tersusun oleh batu pasir yang mengandung lapisan-lapisan batu lempung dan liat. Akifer ini merupakan akifer tak-tertekan karena muncul dipermukaan sepanjang alur Sungai Blackwood pada daerah hilir di Nannup dan merupakan sumber airtanah yang keluar ke sungai. Sungai Blackwood mengalir melintasi Dataran Tinggi Blackwood. Selama musim kering, aliran permukaan ke dalam Sungai Blackwood dapat diabaikan, namun aliran dasar dari airtanah menjadi sumber utama bagi aliran sungai. Neraca air pada daerah studi dilakukan dengan menggunakan analisa jaring-aliran dan kesetimbangan air guna mengevaluasi masukan airtanah dari akifer Yarragadee ke dalam Sungai Blackwood. Mayoritas sel-sel jaring-aliran adalah sel-sel keluaran dan kebanyakan aliran airtanah masuk ke dalam Sungai Blackwood di daerah studi. Curah hujan rata-rata tahunan area studi sekitar 6.7 x 10<sup>7</sup> m<sup>3</sup> a<sup>-1</sup>. Sekitar 9 % dari total curah hujan rata-rata tahunan ini masuk ke dalam tanah sebagai sumber bagi air tanah dan 91 % hilang melalui proses evapotranspirasi. Volume total airtanah yang masuk ke dalam Sungai Blackwood antara stasiun Darradup dan Layman Flat yang dihitung menggunakan analisis jarring-aliran dan kesetimbangan air sekitar 8.1 GL a<sup>-1</sup>.  </p>


2021 ◽  
Vol 36 ◽  
pp. 100837
Author(s):  
Mou Leong Tan ◽  
Yi Lin Tew ◽  
Kwok Pan Chun ◽  
Narimah Samat ◽  
Shazlyn Milleana Shaharudin ◽  
...  

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