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PENERAPAN MODEL HIDROLOGI HUJAN LIMPASAN MENGGUNAKAN APLIKASI BLOCK-WISE TOPMODEL MUSKINGUM-CUNGE (BTOPMC) DI SUB DAERAH ALIRAN SUNGAI LESTI. Abdillah, Rusdan; Harisuseno, Donny; Sisinggih, Dian
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 3, No 2 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Daerah Aliran Sungai (DAS) Lesti hanya 5094 Ha luas hutan atau hanya sekitar 8% dari luas total Sub Daerah Aliran Sungai (DAS) Lesti yaitu sebesar 57777 Ha. Topografi yang ada pada Daerah Aliran Sungai (DAS) Lesti termasuk cukup terjal dengan kemiringan lereng sampai dengan 40%. Kondisi Daerah Aliran Sungai (DAS) Lesti yang sekarang ini menyebabkan pada Daerah Aliran Sungai (DAS) tersebut sering terjadi banjir dari tahun ke tahun. Pada jurnal ini upaya untuk mesimulasikan banjir yang ada pada Daerah Aliran Sungai (DAS) ini menggunakan pemodelan hidrologi fisik terdistribusi. Analisa sebaran curah hujan digunakan untuk mengevaluasi curah hujan serta debit pada Daerah Aliran Sungai (DAS). Memahami karakteristik Daerah Aliran Sungai (DAS) menjadi hal yang diperlukan untuk pemeliharan kondisi maupun penanggulangan bencana dimasa mendatang. Model fisik terdistribusi yang digunakan pada Jurnal ini ialah Block-wise use of TOPMODEL Muskingum-Cunge (BTOPMC). Aplikasi ini menggunakan analisa TOPMODEL untuk memperkirakan limpasan dan Muskingum-Cunge untuk penelusuran banjir aliran. Peta studi yang digunakan untuk pemodelan ini meliputi, Peta Tataguna Lahan, Peta Digital Elevation Map (DEM) dan Peta Tanah. Simulasi limpasan dilakukan pada 2 titik yaitu pada AWLR Tawangrejeni dan AWLR Bendungan Sengguruh. Hasil simulasi yang diterapkan menggunakan metode Nash-Sutcliffe Effiency dengan membandingan debit observasi dan debit simulasi. Pada simulasi yang sudah dilakukan model menunjukan efisiensi kalibrasi dan validasi berturut-turut sebesar 0,737 dan 0,604. Pemodelan ini sangat berguna untuk infomasi debit dan waktu serta memanajemen resiko bencana. Lesti watershed is only 5094 Ha of forest area or only about 8% of the total area of ​​Lesti watershed which is 57777 Ha. The topography in the watershed is quite steep with a slope of up to 40%. Condition of Lesti watershed which currently causes floods in these watersheds often occur flooding from year to year. In this journal, trying to overcome the floods in the watershed using physical distributed hydrological modeling. Precipitation data is used to calculate rainfall and discharge in watersheds. Understanding the characteristics of watersheds becomes necessary for the maintenance of needs or disaster risk management in the future. The distributed physical model used in this journal is block-wise use of TOPMODEL Muskingum-Cunge (BTOPMC). This application used TOPMODEL analysis for estimated runoff and Muskingum-Cunge for routing. Study maps data that used for this modeling is Land Use Map, Digital Elevation Map (DEM) Map and Soil Map. Runoff simulations were carried out at 2 points, namely Tawangrejeni AWLR and Sengguruh Dam AWLR. Simulation results are applied using the Nash-Sutcliffe Efficiency method by comparing the comparison of observations and discharge simulations. In the simulations that have been carried out the model shows the combined calibration and validation calculations of 0.737 and 0.604. This modeling is very useful for information on discharge and time as well as disater risks managemnt.
Penerapan Metode Theory of Run untuk Perhitungan Kekeringan Meteorologi di DAS Welang Harjono, Marie Augustin Alvidian Pangestuti Ais; Harisuseno, Donny; Suhartanto, Ery
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 3, No 2 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Kabupaten Pasuruan dan Kabupaten Malang yang berada di wilayah DAS Welang merupakan wilayah yang dinyatakan darurat kekeringan. Analisis indeks kekeringan dibutuhkan di DAS Welang untuk mengetahui peta sebaran berdasarkan tingkat kekeringannya. Dalam studi ini digunakan perhitungan besarnya indeksmkekeringan meteorologi metode Theory of Run yang distandarisasi dengan metode Z-Index untuk mengetahui jumlah dan durasi kekeringan, kemudian dibandingkan dengan indeks kekeringan hidrologi berdasarkan data debit dengan perhitungan metode Z-Index guna mengetahui tingkat kesesuaian metode Theory of Run di DAS Welang. Metode Theory of Run menunjukkan terjadinyagdurasigkekeringangterpanjanggselamag25 bulan, dengangjumlah kekeringan terbesar yaitu 1410 mm. Z-Index dari Theory of Run menghasilkan indeks kekeringan terbesar dengan nilai 3,82 dan indeks kekeringan terkecil dengan nilai -3,05. Perhitungan data debit dengan Z-Index menghasilkan nilai indeks kekeringan terbesar 2,22 dan indeks kekeringan terkecil sebesar -2,18. Analisis kesesuaian kedua indeks kekeringan menghasilkan persentase kesesuaian 35,29% - 51,47% yang dinyatakan memiliki Hubungan Langsung Positif Lemah. Peta sebaran kekeringan digambar menggunakan metode IDW. Tahun terkering terjadi di tahun 2001, 2007, dan 2008. Terdapat 59 kejadian kekeringan parah pada rata-rata 41 desa yang terjadi di bulan Februari, April, dan Desember di DAS Welang. Pasuruan Regency and Malang regency which are in Welang watershed area are declared as drought emergency areas. Drought index analysis in Welang watershed is needed to have information about drought distribution map according to the level of drought. This study is performed the calculation of meteorological drought index using Theory of Run method which is standardized with Z-Index method to find out the amounts and duration of drought, then will be compared with hydrological drought index based on dicharge data calculated using Z-Index method to find out the suitability level of Theory of Run method in Welang watershed. Theory of Run method shows the longest drought duration occured for 25 months, and the highest number of drought is 1410 mm. Z-Index of Theory of Run produced the highest drought index value (3,82) and the smallest drought index value (-3,05). The calculation of discharge data with Z-Index method produces the highest drought index value (2,22) and the smallest drought index (-2,18). Conformity percentage results of conformity analysis of the two drought indexes are 35,29% - 51,47% which stated that have a Weak Positive Direct Relationship. The drought distribution map is drawn using IDW method. The driest years occured in 2001, 2007, and 2008. There were 59 severe drought events in an average of 41 villages that occured in February, April, and December in Welang watershed.
Kajian Kesesuaian Rumus Intensitas Hujan dan Kurva Intensitas Durasi Frekuensi (IDF) di Wilayah Kampus Universitas Brawijaya, Malang Harisuseno, Donny
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 26, Nomor 2, DESEMBER 2020
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.039 KB) | DOI: 10.14710/mkts.v26i2.31210

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Rainfall intensity known as an essential variable in rainfall-runoff transformation. Flood events occurred in 2017 at Brawijaya University campus caused by high intensity and landuse change in campus's internal and external environment. The study aims to examine performance of several empirical  formulas  in estimating rainfall intensity, investigating characteristic of each empirical formula’s contant due to varying return period (Tr), and determining appropriate Intensity Duration Frequency (IDF) curve. The formula of Sherman, Talbot, and Ishiguro was employed to obtain empirical intensity, while intensity on varying return period was calculated using Log Pearson Type III. The proposed rainfall intensity formula was selected through comparison between empirical intensity with those from observation according to criteria of relative error (KR), Nash Sutcliffe Efficiency (NSE), and Peak Weight Root Mean Square Error (PWRMSE). The Sherman formula showed best performance in estimating rainfall intensity as indicated by low value of KR and PWRMSE, followed by NSE close to one. The constant of empirical formula “a” was directly proportional with increasing of Tr; conversely, constant “b” and “n” were inverse with Tr. The validation result of Sherman formula demonstrated that the formula showed good reliability, thus recommended to estimate intensity and IDF curve in the study area.
Meteorological Drought and its Relationship with Southern Oscillation Index (SOI) Harisuseno, Donny
Civil Engineering Journal Vol 6, No 10 (2020): October
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2020-03091588

Abstract

Drought monitoring, including its severity, spatial, and duration is essential to enhance resilience towards drought, particularly for overcoming drought risk management and mitigation plan. The present study has an objective to examine the suitability of the Standardized Precipitation Index (SPI) and Percent of Normal Index (PN) on assessing drought event by analyzing their relationship with the Southern Oscillation Index (SOI). The monthly rainfall data over twenty years of the observation period were used as a basis for data input in the drought index calculation. The statistical association analyses, included the Pearson Correlation (r), Kendal tau (Ï„), and Spearman rho (rs) used to assess the relationship between the monthly drought indexes and SOI. The present study confirmed that the SPI showed a more consistent and regular pattern relationship with SOI basis which was indicated by a moderately high determination coefficient (R2) of 0.74 and the magnitude of r, Ï„, and rs that were of 0.861, 0.736, and 0.896, respectively. Accordingly, the SPI showed better compatibility than the PN for estimating drought characteristics. The study also revealed that the SOI data could be used as a variable to determine the reliability of drought index results.
Potential use of aquatic plants in constructed wetlands for simultaneous removal of Phosphate and COD from laundry wastewater A Tefa, Marcorio; Harisuseno, Donny; Haribowo, Riyanto
Civil and Environmental Science Journal (CIVENSE) Vol 1, No 2 (2018)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2018.00102.4

Abstract

One component of household wastewater that has a bad impact on the environment is waste that comes from washing which uses detergent, due to a fairly high phosphate and chemical oxygen demand (COD) concentration. The purpose of this study was to determine the potential of using aquatic plants to reduce phosphate and COD levels from laundry waste. This research was carried out using constructed wetlands model of laboratory scale using the combination of flow types of subsurface flow systems (SFS) and the type of vertical flow system (VFS) with a waste residence time of 5 days and 10 days. Based on the results, for model I, the average percentage of COD levels reduction is 67.62% and phosphate is 13.89%, while in model II, the average percentage of COD reduction is 59.93% and phosphate is 14.36%, after 10 days of waste residence time. Aquatic plants used in the modeling of constructed wetland can grow and reproduce well, this can be indicated by the growth of newshoots and flowers of these plants.
Estimation of Flow Discharge Model at Temef Watershed - East Nusa Tenggara Using TRMM Satellite Data Nomleni, Aprianto; Suhartanto, Ery; Harisuseno, Donny
Civil and Environmental Science Journal (CIVENSE) Vol 4, No 2 (2021): IN PRESS
Publisher : Fakultas Teknik UB

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Data collection based on satellite TRMM (Tropical Rainfall Measuring Mission) presents one of the good alternatives in estimating rainfall. TRMM technology can minimize manual rainfall recording errors and improve rainfall accuracy for hydrological analysis. The analysis method used in this research is divided into 3 (three) stages, namely Hydrology analysis, Statistical Analysis and Artificial Neural Network Analysis. From the results of TRMM JAXA analysis in the Temef Watershed Area of East Nusa Tenggara Province obtained TRMM JAXA satellite rainfall relationship to observation data shows rainfall patterns between the two data are interconnected but for cases with very high observation rainfall, TRMM rainfall data tends to be low. From statistical method analysis, the relationship between observation rainfall and TRMM JAXA rainfall obtained results with a "Very Strong" interpretation indicated by the results of 9 years calibration and 1 year validation where the selected equation is a polynomial equation (y=-0,0123x2 + 1,5553x + 20,222). Rain data correction results simulated with Debit data to see the relationship between rain and discharge that occurred, this analysis using Artificial Neural Network with Backpropagation method, the results showed a "Strong" interpretation where statistically the value of Nash-Sutcliffe Efficiency (NSE) 0.920, the coefficient value of correlation of field discharge and TRMM rainfall is 0,877 % and the relative error occurred is 2,62%.
Integrated Urban Drainage Management for Flood Inundation Controlling in Sidokare Area at Sidoarjo Regency Cahya, Evi Nur; Guntoro, Dani Eko; Harisuseno, Donny
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 2 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00202.3

Abstract

Flood and inundation had become a serious problem in Sidoarjo Regency annually. This study aimed to apply integrated urban drainage management for flood inundation controlling at Sidokare Region in Sidoarjo Regency. This integrated drainage management consisted of retarding pond, drainage channel redesign, and pump utilization. The study region was divided into Sidokare Pump station, Sepande, and Diponegoro Street catchment area. Rainfall intensity during historical floods was analysed using Mononobe formula and Log Pearson Type III method was used to analyze design rainfall. From the result of the analysis, it wasfoundthat thehistoricalfloodsinstudyregioncausedbyrainfall withreturnperiodof1.01 years, with rainfall intensity of 17.55 mm/hour. It was also found that by implementing this integratedurbandrainagemanagementatSidokareRegion,floodcouldbereducedupto100%. ForSidokarePumpStationcatchmentarea,theinundationmanagementwasconductedbyusing combination of storage pool, existing drainage channel, and the existing flood pump. For Sepandecatchmentarea,itwasmanagedtousethecombinationofstoragepoolandtheexisting drainage channel. Meanwhile, Diponegoro Street catchment area was solved by utilizing new flood pump combining with new tertiary channel and existing drainagechannel.
MODEL SEBARAN SPASIAL KUALITAS AIR TANAH UNTUK AIR MINUM DI KECAMATAN JOMBANG KABUPATEN JOMBANG Siswoyo, Hari; Harisuseno, Donny; Taufiq, Mohammad; Azhar, Rifqi Fajar
JST (Jurnal Sains dan Teknologi) Vol 10, No 2 (2021)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (490.091 KB) | DOI: 10.23887/jst-undiksha.v10i2.33644

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Most of the population in the Jombang District area uses groundwater from dug wells and bor wells to meet their daily water needs. The quality of water from these wells was not always well controlled. The purpose of this research was to assess the quality of groundwater for drinking water and map its distribution patterns in the research location. The type of this research was development research with a descriptive research design. The groundwater quality index value for drinking water was determined based on the water quality index model and then mapped its distribution spatially in the study area. The spatial distribution of groundwater quality for drinking water in the study area, both during the rainy season and the dry season was dominated by areas with good and very good groundwater quality. The spatial distribution model of groundwater quality can be used as an indicator to assess the appropriateness of groundwater quality for drinking water in the research location.
Determination of Curve Number for the Temef Watershed, Timor Tengah Selatan Regency Welkis, Davianto Frangky; Harisuseno, Donny; Wahyuni, Sri; Beselly, Sebrian Mirdeklis
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 14 No. 2 (2023)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2023.014.02.1

Abstract

This study aims to show that the Curve Number (CN) method can represent the relationship between rainfall runoff in the Temef Watershed, an area of ​​East Nusa Tenggara. The method used in this study was quantitative analysis by linking watershed characteristics such as soil, vegetation, and land use with the CN curve number, which shows the potential flow for a certain rainfall. CN data were re-analyzed using a computer program to obtain actual field conditions, which were then classified to obtain land cover quality, soil type, CN value, and Antecedent Moisture Condition (AMC) value for the Temef Watershed. Based on the study's results, it was found that the Temef Watershed was dominated by secondary dry land forest cover, which ranged from 28.50-52.00%. The lithological texture of rocks in the Temef Watershed is dominated by conglomerate and gravel with a gradation rate from medium to high; sandy marl, sandstone, tuft, and dacite of medium to a high gradation; and scaly clay with very low to low gradation. The CN value is 69.45, classified as medium gradation at normal soil moisture levels. The benefits of this result include the practical application of the CN method, the provision of accurate field conditions through re-analysis, insights into dominant land cover and lithological texture, and the establishment of CN values for effective water resource management.
Flood Prone Mapping based on Surface Runoff Analysis using the SWAT Model at the Upstream Side of Brantas Nurcahyaningtyas, Devi; Harisuseno, Donny; Fidari, Jadfan Sidqi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.01.4

Abstract

Currently, Batu City is experiencing rapid development both in terms of population and the amount of land building. Where development is uncontrolled and not balanced by reasonable conservation efforts, it will cause water resource problems such as flooding. So, it is necessary to understand flow patterns better as an actual effort in effective water management and flood hazard mitigation. This study aims to obtain a map of flood-prone areas in the Brantas sub-watershed upstream of Batu City. The primary methodology adopted in this research entails the examination of surface runoff through the utilization of the ArcSWAT program, followed by the analysis of pertinent parameters, including rainfall, land use, soil type, land slope, river density, and surface runoff. Then, scoring and weighting are done before overlaying each parameter to get a flood vulnerability map at the research location. The results of this study indicate that the mapping of flood-prone areas at the most significant research location is at a high level of flood vulnerability of 78.31 km2 or 52.22% of the total area of the watershed.
Co-Authors A Tefa, Marcorio Abdillah, Rusdan Aditama, Dimas Hafiz Aji, Yahya Muchaimin Almira, Aufa Hanan Anggara WWS anggun sugiarti, anggun Aprilansi, Ledib Aprilia, Anindi Atthahirah, Mutiara Azhar, Rifqi Fajar Beselly Putra, Sebrian Mirdeklis Cipta, Dara Marreta Deni Indarwati Dian Chandrasasi Dian Sisinggih Dwi Priyantoro Dwirani, Yosie Eka Wulandari Srihadi Putri, Eka Wulandari Srihadi Emma Yuliani Endang Purwati RN Erfarras, Nadia Nahda Ery Suhartanto Estefanus Wolok Evi Nur Cahya Firdaus, Novinda Faizah Fitriah, Faizah Friyana, Acha Octa Gilang Y. Juantari Guntoro, Dani Eko Guntoro, Dani Eko hari siswoyo Harjono, Marie Augustin Alvidian Pangestuti Ais Hartina Sahabuddin Hastina, Hastina Herdita, Chintya Ayu Permata Herdita, Chintya Ayu Permata Ima Sholikhati Jadfan Sidqi Fidari Lalu Sigar Canggih Ranesa, Lalu Sigar Canggih Lily Montarcih Limantara M. Amar Sajali M. Nurul Huda Maharani, Yasinta Surya Mahyaya M. Rahman Moh. Sholichin Mohammad Bisri Mohammad Rahdiansyah Batubara, Mohammad Rahdiansyah Mohammad Taufiq Nastiti, Nadia Sari Nomleni, Aprianto Nuariman, Panji Anom Nurcahyaningtyas, Devi Partarini, Ni Made Candra Pribadi, Laurentius Prasetya Puspasari, Ria Puteriana, Shintya Agustien Putra, Farhan Akbar Darma Putranto, Yoyok Dwi Rahma, Novi Fadhilah Rahmah Dara Lufira Rakhmawati, Dinia Dwi Rifnawati, Vina Rini Wahyu Sayekti Rini, Syafadilla Enggar Rispiningtati Rispiningtati Riyanto Haribowo Rizal Arifuddin K. Rubiantoro, Prasetyo Sajali, M. Amar Sandi, Yohan Alfanii Sapto Dwi Hari Oktavianto Sari, Devi Puspita Sariyanti, Ni Komang Yuli Setiyowati, Yunita Ayu Sidqi Fidari, Jadfan Sitepu, Haniyah Sri Wahyuni Suhardjono Suhardjono Tri Budi Prayogo, Tri Budi Tri Juwono, Pitojo Tri Kurniawati, Tri Ussy Andawayanti Very Dermawan Visi Murpratiwi, Aisyah Welkis, Davianto Frangky Widandi Soetopo WIJAYANTI, SILVIA DEWI Wijayanto, Andy Wiyono Wit Saputra, Anggara Yan P. S. Tampani, Yan P. S. Yanuar Hendra Pramana, Yanuar Hendra Yunus Fallo