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All Journal Jurnal Mahasiswa Jurusan Teknik Pengairan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Teknik Sipil Civil and Environmental Science Journal (CIVENSE)
Lily Montarcih Limantara
Jurusan Teknik Pengairan Fakultas Teknik Universitas Brawijaya Malang.
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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Journal : Jurnal Teknik Pengairan: Journal of Water Resources Engineering

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Model-Model Pembangkitan Data Sintetis Untuk Curah Hujan Harian Di Wilayah Brantas Tengah Soetopo, Widandi; Limantara, Lily Montarcih; Sayekti, Rini Wahyu; Purwati, Endang; Chandrasasi, Dian; Ilham, Muhammad; Rahmadi, Agung
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 1 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

This research is for finding the suitable the synthetic data generating model for daily rainfall in the region of Middle Brantas River Basin in the East Java Province. There are 7 models being considered, 4 models for single-site generation, (1) the two-part, model group, (2) the transition probability matrix model group, (3) the resampling model group, and (4) the time series model group, and 3 models for multisite generation, (5) the conditional, model group, (6) the extension of single site Markov chain model group, and (7) the random cascade model group. All of the time-series produced by the daily rainfall synthetic data generation are then tested statistically. The results show that statistically the differences between the historical time series and the synthetically time series are not too significant. It turn out that the multisite model have produced better synthetic time series compared to those which have been produced by the single-site models.Keywords: generating model, synthetic data, daily rainfall.
Analisa Ketersediaan dan Kebutuhan Air pada DAS Sampean Sari, Indra Kusuma; Limantara, Lily Montarcih; Priyantoro, Dwi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 2, No 1 (2011)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Perkembangan wilayah pada suatu daerah akan menyebabkan kebutuhan air terusmeningkat seiring dengan laju pertumbuhan penduduk. Pemenuhan kebutuhan pangan dan aktivitas penduduk selalu erat kaitannya dengan kebutuhan akan air. Tuntutan tersebut tidak dapat dihindari, tetapi haruslah diprediksi dan direncanakan pemanfaatan sebaik mungkin. Kecenderungan yang sering terjadi adalah adanya ketidakseimbangan antara ketersediaan dan kebutuhan air. Untuk mencapai keseimbangan antara kebutuhan air dan ketersediaan air di masa mendatang, diperlukan upaya pengkajian komponen-komponen kebutuhan air, serta efisiensi penggunaan air.Kebutuhan air domestik dan Non Domestik sebesar 50,93 lt/dt untuk saat ini, 68,34lt/dt untuk 2 tahun mendatang, 87,09 lt/dt untuk 5 tahun mendatang, 111,96 lt/dt untuk 10 tahun mendatang dan sebesar 160,06 lt/dt untuk 20 tahun mendatang. Kebutuhan air irigasitotal sebesar 37.305,7 lt/dt mengairi sawah seluas 36.180 ha. Kebutuhan air Industrisebesar 4,68 lt/dt untuk saat ini, 4,74 lt/dt untuk 2 tahun mendatang, 4,84 lt/dt untuk 5tahun mendatang, 5,04 lt/dt untuk 10 tahun mendatang dan sebesar 5,54 lt/dt untuk 20tahun mendatang. Kebutuhan air Perikanan sebesar 281,72 lt/dt untuk saat ini, 296,13 lt/dtuntuk 2 tahun mendatang, 319,92 lt/dt untuk 5 tahun mendatang, 366,52 lt/dt untuk 10 tahun mendatang dan sebesar 495,48 lt/dt untuk 20 tahun mendatang.Dari hasil perhitungan diatas daerah layanan yang mengalami defisit air pada saat ini : Pakem, Botolinggo, Tlogosari, Bondowoso, 2 tahun mendatang : Pakem, Botolinggo,Tlogosari, Bondowoso, 5 tahun mendatang : Pakem, Botolinggo, Tlogosari, Bondowoso,Tenggarang, Sukosari, 10 tahun mendatang : Pakem, Botolinggo, Tlogosari, Bondowoso,Tenggarang, Sukosari, Maesan, 20 tahun mendatang : Pakem, Botolinggo, Tlogosari, Bondowoso, Tenggarang, Sukosari, Maesan, Prajekan, Curahdami.Ketersediaan dan Kebutuhan air pada Das Sampean mengalami defisit pada beberapa daerah layanan yang pada kondisi 2,5,10 hinggga 20 mendatang semakin bertambah daerah layanan yang mengalami defisit, Kebutuhan air yang mendominasi penggunaan air permukaan di Das Sampean adalah kebutuhan air irigasi, pada kondisi di daerah studi penggunaan air untuk kebutuhan industri dan perikanan banyak menggunakan air dari saluran irigasi yang mengakibatkan berkurangnya kapasitas air yang masuk pada petak sawah. Keadaan ini ditunjang dengan belum dimanfaatkan dan minimnya saranabangunan air dari sumber-sumber air lainnya. Oleh sebab itu direkomendasikan agar dilakukan studi dan survey lebih lanjut dari aspek topografi, geologi, hidrologi untuk mengatasi penyediaan air pada daerah defisit, baik interkoneksi dari daerah surplus kedaerah defisit serta perlu dilakukan studi, survey dan investigasi lebih lanjut untuk mencarisumber air baru (bawah permukaan, permukaan) sebagai pemenuhan kebutuhan domestik dan non domestik.Kata kunci : Ketersediaan, Kebutuhan, Neraca Air.
Studi Optimasi Distribusi Air Irigasi Di Daerah Irigasi Lodoyo Ekorini, Lucky Dyah; Limantara, Lily Montarcih; Suhartanto, Ery
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Lodoyo Irrigation Area covers two districts namely Blitar and Tulungagung. Irrigation Area Lodoyo itself has intakes in Dam Wlingi in Blitar. Wlingi dam located on the Brantas River in the Village District Jegu Sutojayan Blitar ± 30 km in the downstream dam Sutami. The expected benefits and purpose of the construction of this dam is Wlingi Raya for the supply of irrigation water and generate hydropower. Irrigated area has a wide DI Lodoyo raw rice 12,219 ha, comprising 12 204 irrigation and 15 ha for ponds. Types of crops grown in the area of DI Lodoyo for each growing season are: (1) rainy season, planting season I: Rice - Crops; (2) Dry Season I, II Planting season: Rice - Crops; (3) Dry Season II, Planting season III: Rice - Crop. While the availability of discharge in irrigated areas Lodoyo is based on the availability of existing discharge in the Brantas River, in this case is Wlingi Reservoir catchment. Based on the results of the optimization analysis conducted extensive rice plants obtained optimum results: in dry conditions 4,041 ha, 4,242 ha under normal conditions;, in wet conditions: 4,682 ha. While the results of the maximum benefit in dry conditions Rp. 58,780,404,629.00; under normal conditions Rp. 59,792,367,463.00;, in wet conditions Rp. 62,009,795,069.00. To obtain the results of the sensitivity analysis results are sensitive land: in dry conditions between 2844-15359 ha; under normal conditions between 3051-15999 ha while in wet conditions between 305117400 ha.Keywords : Irrigation, Optimization, Sensitivity
PERBANDINGAN ANTARA MODEL ATURAN LEPASAN BERDASARKAN TAMPUNGAN DAN MODEL RULE CURVE UNTUK WADUK PENGGA soetopo, widandi; Limantara, Lily Montarcih; Suhardjono, Suhardjono; Andawayanti, Ussy; Lufira, Rahmah Dara; Huda, Qomarul; Anwar, Syamsul
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 2 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Abstrak : Penelitian ini untuk membandingkan an­ta­ra 2 alternatif aturan operasi waduk Pengga dalam mengatur debit lepasan guna memenuhi kebutuhan sepanjang tahun.  Waduk Pengga beroperasi dengan periode ½ bulanan.  Ada 2 alternatif yang disarankan untuk waduk Pengga, yaitu (1) aturan lepasan yang berdasarkan status tampungan waduk pada awal periode operasi, dan (2) rule curve sebagai batas bawah tampungan wa­duk pada setiap periode operasi.  A­tur­an operasi lepasan waduk dari masing-masing alternatif di­op­timasi untuk me­ning­kat­kan kinerjanya sampai mencapai batas maksimum, lalu dilakukan perbandingan antara kedua alternatif tersebut.  Sebelum dilakukan optimasi, dilakukan revisi terhadap struktur daripada ma­sing-masing aturan operasi untuk meningkatkan potensi perbaikan kinerja da­lam optimasi.  Pada aturan lepasan berdasarkan tampungan, revisi struktur di­pu­sat­kan pada peningkatan jumlah grid tampungan, sementara juga dicoba alternatif bentuk garis lepasan yang kontinyu disamping bentuk diskrit.  Sedangkan pada rule curve, re­vi­si struktur dipusatkan pada penambahan kurva-kurva sebagai batas bawah pelepasan bertingkat.  Untuk melakukan optimasi di­gu­nakan prosedur Evolutionary Solver yang ada pa­da perangkat Add-Ins Solver dari MS-Excel 2010.Kata kunci: aturan lepasan, status tampungan, rule curve. Abstract : This research is the comparison of two alternatives of operating rule of the Pengga Reservoir for regulating the releases to fulfill the annual water demand.  The Pengga Reservoir operate in half-month periods.  Two alternatives being proposed for the release operating rule of Pengga Reservoir, (1) the release rule based on the reservoir storage state at the beginning of operating period, and (2) the Rule Curve as the lower boundary of reservoir storage at every operating period.  The reservoir release operating rule of each alternative is optimized to improve its performance until attain the maximum limit, then the comparison is conducted between the two alternatives.  Before the optimization, structural revisions are done on each operating rule to enhance the potency of performance improvement in the optimization.  In the Release Rule based on storage, the revisions are focused on the expansion of number of storage grid, beside also the  trial shape of continuous release line instead of discrete.  As for the Rule Curve, the revisions are focused on the additional curves as the lower bounds of stepped release.  The undertaking of this optimization study will use the Evolutionary Solver procedure in Add-Ins Solver package of the MS-Excel 2010.Keywords: release rule, storage state, rule curve.
Studi Penilaian Indikator Kinerja Das Konaweha Akibat Perubahan Tata Guna Lahan Berdasarkan Kriteria Hidrologis Andono, Riwin; Limantara, Lily Montarcih; Juwono, Pitojo Tri
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 1 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Watershed assessment using hydrology indicators is a quick and effective way to know the performance of the Konaweha watershed due to land use changes. Konaweha watershed is located in Sulawesi Tenggara Province, which includes Kendari City, Konawe, and Kolaka with its ± 6020 km basin area. This study was conducted to evaluate the response of Konaweha watershed due to land use changes in the year of 2000 - 2010, and land use spatial direction (RTRW) of Sulawesi Tenggara Province, using spatial analysis methods by applying AVSWAT software. Watershed performance indicators which is used in the assessment indicators is discharge to know the value of Coefficient River Regim (KRS), runoff coefficient, and sediment transport in Konaweha Watershed. Based on both of the three indicators and the calculation of the spatial analysis showed that Konaweha Watershed is in good category. KRS values obtained in 2000 and 2010, as well as the spatial direction in between 99 - 102 indicating Konaweha watershed in medium category. Runoff coefficient indicator showed value in between 0.045 - 0.1 which indicating watershed in the good category. Furthermore, sediment transport indicators show the value of 0.5 - 0.105 were also indicating in good category. KRS values of Konaweha watershed which is in medium category, it is indicated that Konaweha watershed has poor capacity to retain and storage of water infiltration. Construction of dams, ponds, and other technical efforts are needed to be done in order to improve the performance of DAS Konaweha with decreasing the indicator score of River Regim Coefficient (KRS)Key words: Watershed Assesment, Land user changes, Hidrology
Rasionalisasi Jaringan Penakar Hujan Di Das Kedungsoko Kabupaten Nganjuk Rodhita, Muhamad; Limantara, Lily Montarcih; Dermawan, Very
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 3, No 2 (2012)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Kedungsoko River and its tributaries is located in Kediri and Nganjuk district. Kedungsoko river has approximate 416,54 km2 of watershed area number. Kedungsoko catchment area is affected by approximate 8 rain stations. There has not been studied theoretically about the optimum density and dispersal patterns of rainfall station networks that have been installed in the Kedungsoko watershed.Based on the results of assessment and analysis using Kagan-Rodda method, it was acquired 4 selected stations, while Kriging method obtained results of 8 selected stations that spreaded in Kedungsoko watershed. Relative error for design rainfall of Kagan-Rodda method is 1,906% and Kriging method is 2,802%. Relative error of hidrograf discharge unit for Kagan-Rodda is 38,53% and 19,83% for Kriging.Keywords: Rainfall station networks, Kagan-Rodda, Kriging
ANALISIS HUJAN DAN TATA GUNA LAHAN TERHADAP LIMPASAN PERMUKAAN DI SUB DAS PEKALEN KABUPATEN PROBOLINGGO Nurdiyanto, Nurdiyanto; Limantara, Lily Montarcih; Suhartanto, Ery
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 7, No 1 (2016)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Abstrak : Tata guna lahan daerah aliran sungai yang mengalami perubahan dan mengarah pada penggundulan hutan dapat meningkatkan debit banjir serta mempengaruhi debit rerata harian  sungai di daerah hilir. Debit sungai yang mengalir merupakan  respon daerah aliran sungai, dengan masukan hujan dan digambarkan melalui karakteristik hidrograf aliran sungai.Sub DAS Pekalen mempunyai luas 165,49 km2, berada di Kabupaten Probolinggo. Rata rata debit  harian  yang mengalir tahun 1997 sebesar 8,843 m3/dt dan tahun 2006 sebesar 10,42 m3/dt. Hasil analisa peta tata guna lahan tahun 1997 dan tahun 2006 menunjukkan adanya perubahan tata guna lahan. Berdasarkan analisa limpasan permukaan metode Curve Number dengan software HEC HMS menunjukkan bahwa perubahan tata guna lahan yang mengakibatkan nilai Curve Number meningkat 0,59% maka, debit banjir yang akan terjadi juga mengalami peningkatan sebesar 1,99%.Kata Kunci :  Tata Guna Lahan, Curve Number, HEC HMS, Sungai Pekalen Abstract : The change of land-use in watersheds and deforestation may increase flood discharge and affect the average daily flow of the downstream. The river discharge is a response to the watershed, with the input of rain and illustrated by the characteristics of hydrograph.Pekalen sub watershed has an area of 165,49 km2, located in Probolinggo. The average daily discharge in 1997 is 8,843 m3 / sec and 2006 is 10,42 m3 / sec. The results of the analysis of land use maps of 1997 and 2006 showed changes in land use. Based on the analysis of surface runoff Curve Number method with use HEC HMS software showed that the land use change by increasing the value of Curve Number 0,59%, the flood discharge will be also increased 1,99%.Keywords : Land use, Curve Number, HEC HMS, Pekalen river
KAJIAN PERUBAHAN IKLIM TERHADAP LIMPASAN PERMUKAAN DI DAS NOELBAKI Ahab, Semuel J. Ch.; Limantara, Lily Montarcih; Prayogo, Tri Budi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 7, No 1 (2016)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Abstrak : Provinsi Nusa Tenggara Timur merupakan salah satu daerah Indonesia bagian timur yang mengalami kenaikan curah hujan (RAN Adaptasi Perubahan Iklim Kementerian Perencanaan Pembangunan Nasional /Badan Perencanaan Pembangunan Nasional). Pengujian statistik dengan uji t terhadap data hujan dapat disimpulkan terjadinya perubahan hujan pada periode tahun 1998 s/d 2014 dimana  nilai t tabel < dari t hitung.  Hasil pemodelan AVSWAT 2000 diperoleh rata-rata perubahan tata guna lahan untuk setiap jenis tanah dari tahun 1993 sampai tahun 2012 pada DAS Noelbaki sebesar 42,71 %. Perubahan tata guna lahan mengakibatkan terjadinya peningkatan debit puncak 5,12 % sebesar 0,02 m3/dt, sisanya 94,88 % sebesar 0,29 m3/dt diakibatkan adanya perubahan pola hujan pada DAS Noelbaki. Debit puncak limpasan pada Bendungan Tilong  berdasarkan hasil kajian diperoleh Skenario perubahan pola hujan > Skenario perubahan tata guna lahan. Dengan demikian dapat disimpulkan bahwa perubahan pola hujan pada DAS Noelbaki mengakibatkan terjadinya peningkatan debit puncak limpasan pada Bendungan Tilong saat musim penghujan.Kata kunci: Pola Hujan, Tata Guna Lahan, Limpasan, Debit, AVSWAT 2000 Abstract : East Nusa Tenggara Province is one of the eastern Indonesia region that experienced an increase in rainfall (RAN Adaptation to Climate Change of the Ministry of National Development Planning / National Development Planning Agency). Statistical testing by t test against rain data can be summed rainfall changes in the period of 1998 until 2014 where the value of t tables < t count. AVSWAT modeling results obtained in 2000 the average change in land use for each type of land from 1993 until 2012 at the Noelbaki watershed amounted to 42,71%. Changes in land use resulted 5,12% increase in peak discharge of 0,02 m3/s, the remaining 94,88% of 0,29 m3/s due to changes in rainfall patterns in the Noelbaki watershed. Peak discharge runoff at Tilong Dam based on the results of the study obtained Scenario changing rainfall patterns > Scenarios of land use change. It can be concluded that changes in rainfall patterns in the Noelbaki watershed lead to an increase in peak runoff discharge at the dam Tilong during the rainy season.Keywords :  Rain patterns, Land Use, runoff, discharge
ANALISA BANJIR PADA D.I SENGKALING KANAN YANG DISEBABKAN ALIH FUNGSI SALURAN IRIGASI MENJADI SALURAN DRAINASE Arfiyanti, Anandini Fatma; Suhardjono, Suhardjono; Limantara, Lily Montarcih
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 8, No 1 (2017)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (861.725 KB) | DOI: 10.21776/ub.jtp.2017.008.01.10

Abstract

ABSTRAK Perubahan secara cepat pada tata guna lahan menuntut adanya usaha penanganan sistem pembawa air yang tepat pada lahan. Sebab dengan adanya perubahan tata guna lahan tersebut, dapat berakibat terjadinya perubahan fungsi saluran irigasi menjadi saluran drainase. Studi ini dipusatkan pada DTA Intake Sengkaling Kanan, karena daerah ini mempunyai banyak titik yang mempunyai permasalahan genangan di saat musim hujan datang setiap tahunnya. Sebagai contoh pada saat musim hujan tinggi tahun 2012 genangan yang terjadi mencapai 1,5 meter. Hal ini menyebabkan terganggunya aktifitas penduduk di lokasi tersebut karena daerah ini merupakan pusat pertokoan, pemukiman, dan pemerintahan/ perkantoran. Dari permasalahan tersebut  direncanakan 2 pelimpah samping 1 diletakkan pada Sub DAS 3 mengalirkan debit sejumlah 5,47 m3/dt dan pelimpah samping 2 diletakkan pada Sub DAS 8 mengalirkan debit sejumlah 5,58 m3/dt. Kata Kunci: Banjir, Drainase, Irigasi, Saluran, Tata Guna Lahan ABSTRACT Rapid changes in land-use business management system requires proper water carrier on the land. Because with the change in the land use, may result in changes in the function of the irrigation channel into the drainage channel. This study focused on DTA Intake Sengkaling Right, because this area has a lot of points that have problems inundation during the rainy season comes every year. For example during the rainy season high inundation occurred in 2012 reached 1.5 meters. This causes disruption of activity of the population in these locations because this area is a shopping center, residential, and government / offices. From the problems of planned 2 1 put on the spillway side subzone 3 drain discharge amount of 5.47 m3 / s and 2 is placed on the side spillway subzone 8 drain discharge amount of 5.58 m3 / sec. Keywords: Flood, Drainage, Irrigation, Channels, Land Use
Analisis Perubahan Bilangan Kurva Aliran Permukaan (Runoff Curve Number) Terhadap Debit Banjir Di DAS Lesti Ideawati, Lenny Febriana; Limantara, Lily Montarcih; Andawayanti, Ussy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 1 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Land use activities that changing types of land cover, vegetation changes to other vegetation types in managed of natural resources, deforestation, shifting cultivation, and changes in land treatments found in the watershed Lesti. Efforts that can be used as an alternative solution to the landuse change is to analyze the CN (Curve Number) as a variable that classify each landuse, type of soil and vegetation, in order to know the effect of the runoff and river discharge. The study shows CN value increase from 2002 to 2012 an average of 1.03%, average surface runoff 54.79 mm, with an average streamflow of 18.54 m 3 / sec. The changes in land use from 2002 to 2012 caused increase in the value of the CN (Curve Number), surface runoff, and river discharge in Lesti River.Key words: Lesti Watershed, Curve Number, Runoff
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Hariyadi Adiputra, Dhimas Satibi Agung Rahmadi Agus Priombodo Alamsyah, Muhammad Bayu Ambarwati, Arum Nurwidya Aniek Masrevaniah Arfiyanti, Anandini Fatma Arif Rahmad Darmawan Azwar Annas Kunaifi Chandrasasi, Dian Dian Chandrasasi Dian Sisinggih Djunaedi Djunaedi Donny Harisuseno Dwi Priyantoro Edison Hukom Eka Agus Subiyantoro Endang Purwati RN Ery Suhartanto Fauziyah, Fauziyah Ferina, Marisa Ayu Haris Djafar, Haris Harisuseno, Donny Ikrar Hanggara, Ikrar Ilham, Rendy Khoirul Indra Kusuma Sari Islamiyanto, Yudho Putra Juni, Riska Wulan Lalu Sigar Canggih Ranesa, Lalu Sigar Canggih Lenny Febriana Ideawati, Lenny Febriana Lucky Dyah Ekorini M. Bisri Mahendra, Hardiman Mochammad Ibrahim Moh. Sholichin Mohammad Bisri Mohammad Sholichin Muhamad Rodhita Muhammad Ilham nalurita, sari Nuf'a, Hilma Nurdiyanto Nurdiyanto, Nurdiyanto nurfitriani, Alvina nurfitriani, Alvina Pitojo Tri Juwono Putra, Whima Regianto Qomarul Huda, Qomarul Rachma, Siti Talitha Rahmah Dara Lufira ramdhani, fitroh Rini Wahyu Sayekti Rini, Firda Agustiya Riwin Andono Rossy Tamaya, Hana Arum Runi Asmaranto Semuel J. Ch. Ahab, Semuel J. Ch. Sri Wahyuni Suhardjono Suhardjono Sulianto Sulianto Suwanto Marsudi Tri Budi Prayogo, Tri Budi Tyas Daru, Tyas Ussy Andawayanti Very Dermawan Wahyuni, Sri Wahyuni, Sri Whima Regianto Putra Widandi Soetopo