FJ.Mock Method for Hydrological model in Water Reliability Study at Jatiluhur Estate, Purwakarta

Setiadi, Panji Agung; Wijayanti, Yureana; Cahyono, Christian; Juliastuti, Godeliva

doi:10.1088/1755-1315/998/1/012003

Cited by 7 publications

(8 citation statements)

References 7 publications

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“…Model hidrologi FJ.Mock menghitung curah hujan dan data evapotranspirasi aktual dari daerah aliran sungai [5]. Metode Mock dikembangkan oleh Dr. F.J.Mock.…”

Section: Fj Mockunclassified

Pemodelan Perubahan Morfologi Sungai Akibat Pembuangan Lumpur Sidoarjo Pada Kali Porong

Saud,

Rahman Alam,

Ansori

et al. 2024

JITS

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Kata kunci: kali porong, thomas fiering, fj mock, mike 21, overtopping. AbstrakPembuangan lumpur yang terus-menerus ke Kali Porong dapat mempengaruhi kapasitas sungai. Oleh karena itu, penelitian ini bertujuan untuk memahami kapasitas Kali Porong setelah menjadi tempat pembuangan lumpur Sidoarjo serta menganalisis pengaruhnya dalam jangka waktu 10 tahun ke depan. Metode yang digunakan meliputi penggunaan metode Thomas Fiering untuk membangkitkan data curah hujan selama periode tersebut. Data curah hujan tersebut kemudian diolah menggunakan perhitungan FJ Mock untuk mendapatkan data debit Kali Porong. Selanjutnya, data debit sungai ini dimasukkan ke dalam aplikasi MIKE 21 untuk melakukan simulasi ketinggian permukaan air di Kali Porong. Hasil penelitian ini meliputi pemodelan tinggi permukaan air yang mengungkapkan penyebaran sedimen yang terendap di beberapa lokasi berdasarkan U*. Implikasi penting dari penelitian ini adalah hasil pemodelan dapat digunakan oleh pihak terkait dalam pengelolaan kapasitas Kali Porong setelah menjadi tempat pembuangan lumpur Sidoarjo hingga tahun 2032. Temuan kritis dari penelitian ini adalah adanya penampang dengan kondisi overtopping pada line 5 sisi kanan dan sisi kiri, yang menyarankan perlunya meninggikan tanggul setinggi 2 meter pada sisi kanan dan 0,5 meter pada sisi kiri untuk menjaga kapasitas dan keberlanjutan sungai tersebut.

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“…Model hidrologi FJ.Mock menghitung curah hujan dan data evapotranspirasi aktual dari daerah aliran sungai [5]. Metode Mock dikembangkan oleh Dr. F.J.Mock.…”

Section: Fj Mockunclassified

Pemodelan Perubahan Morfologi Sungai Akibat Pembuangan Lumpur Sidoarjo Pada Kali Porong

Saud,

Rahman Alam,

Ansori

et al. 2024

JITS

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“…For reliable discharge using the ranking statistical method, each percentage's analysis of the discharge probability is calculated using the Weibull formula [16], [17]. Dependable discharge analysis was carried out using the F.J Mock [18]- [20] and the NRECA Model [21]- [23]. The dependable discharge calculation follows the diagrams in Figure 6 and Figure 7.…”

Section: A Potential Evapotranspiration and Dependable Dischargementioning

confidence: 99%

Analysis of The Pipelines Headrace of Micro-Hydropower Plant

Junaidi¹,

Kurniawan²,

Nurhamidah³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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The area around Andalas University has the potential for renewable water sources that have not been utilized optimally. This can be used to meet the electricity needs of Andalas University. University requires electricity costs of 720 million per month. With the Micro Hydro Power Plant, the campus can save electricity costs for this purpose. This research aims to study the most optimum headraces and the generated power capacity. A hydrology analysis is needed to obtain a reliable discharge as a reference for potential river flow in determining the electric power capacity; the dependable discharge is used with a percentage of events throughout the year of 85%. The dependable discharge analysis is carried out by the F.J Mock method and the NRECA model, where the calculation results of these two methods are almost close to 1.1 m 3 /s. This study uses EPANET 2.0 software in modeling the water distribution network to the MHP turbine. The rainfall data used is for 11 years (2008-2018), where the data is taken from Batu Busuk station, Ladang Padi station, Simpang Alai station and Gunung Nago station. The climatological data needed is the climatological data for the city of Padang. In this study, several alternative channel traces were used to make it easier to determine the most optimum channel trace. Based on the EPANET simulation results, an alternative D is obtained as the best trace with a carrier channel along 1692.82 m using HDPE pipe Ø720. The discharge that can be passed is 1,098 m3/s, and the power generated is 0.6 MW. Alternative D trace is superior to others because it does not pass-through steep slopes, so it is safe and easy to install.

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“…Rainfall data is primary data that can be obtained from the measurement data of the estimated water station and CHIRPS satellite data. The flow discharge calculation can use the mock FJ method to produce estimated discharge data [6]. Estimated discharge can be generated by inputting rainfall data from the CHIRPS satellite, corrected with measured data, and evapotranspiration data generated by several climate parameters using the Penman-Monteith method.…”

Section: Introductionmentioning

confidence: 99%

Water availability identification of underground river in the Gunung Sewu karst area using inverse model

Daffaedra,

Mawandha,

Ersavan

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The karst area is identified in the Gunung Kidul Regency, the so-called Gunung Sewu karst area, as one of the Geopark areas in Indonesia. Gunungkidul Regency has had moderate to high yearly rainfall for the last ten years. However, this region has a problem with a surface water shortage. It is due to the characteristics of the karst, which allows rainwater to penetrate the geological layers accumulating in the certain noose yielding abundant underground water reserves. The purpose of this study is to assess the underground river water availability and the hydrological characteristics in the karst region using Inverse Modeling. Inverse Modeling is a method to identify the features of the underground river by adjusting the hydrological variables as an input and output discharge as a control. The FJ Mock Model as a surface hydrological model is used to characterize the Karst region’s underground river. There were five models in total to be simulated. The conditions under the Mock model show consistent results compared to the stepwise model in terms of low discharge conditions; Coefficient Correlation, RMSE, and R2 values obtain 0.637, 17.29, and 0.407, respectively. In this case, estimating the low flow conditions is more accurate than the high-rate flow conditions. The results are closer to the stepwise model without the infiltration variable involved.

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FJ.Mock Method for Hydrological model in Water Reliability Study at Jatiluhur Estate, Purwakarta

Cited by 7 publications

References 7 publications

Pemodelan Perubahan Morfologi Sungai Akibat Pembuangan Lumpur Sidoarjo Pada Kali Porong

Pemodelan Perubahan Morfologi Sungai Akibat Pembuangan Lumpur Sidoarjo Pada Kali Porong

Analysis of The Pipelines Headrace of Micro-Hydropower Plant

Water availability identification of underground river in the Gunung Sewu karst area using inverse model

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