Article Per Year (5 Year)
p-Index From 2020 - 2025
0.817
P-Index
This Author published in this journals
All Journal Jurnal Mahasiswa Jurusan Teknik Pengairan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal DISPROTEK Jurnal Teknologi dan Rekayasa Sumber Daya Air Jurnal Civil Engineering Study
Dian Chandrasasi
Jurusan Teknik Pengairan Fakultas Teknik Universitas Brawijaya
Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Other

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 12 Documents
Search

 1   2 
RASIONALISASI JARINGAN STASIUN HUJAN MENGGUNAKAN METODE KAGAN – RODDA DENGAN MEMPERHITUNGKAN FAKTOR TOPOGRAFI PADA DAERAH ALIRAN SUNGAI (DAS) SAMPEAN, KABUPATEN BONDOWOSO, JAWA TIMUR Adihaningrum, Anita Andriyani; Dermawan, Very; Chandrasasi, Dian
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 1, No 2 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1251.26 KB)

Abstract

DAS Sampean saat ini mempunyai 34 stasiun dengan sebaran yang tidak merata dan kurang efektif dalam pemeliharaan. Oleh karena itu diperlukan kajian rasionalisasi stasiun hujan di DAS Sampean dengan luas 1.244,18 km2. Hasil analisa rasionalisasi stasiun hujan metode Kagan-Rodda berdasarkan data curah hujan rata-rata harian maksimum daerah dari metode Poligon Thiessen, didapatkan jumlah ideal stasiun hujan sesuai standar WMO (World Meteorological Organization) adalah 12 buah stasiun hujan dengan nilai kesalahan perataan (Z1) sebesar 9,1 % dan nilai kesalahan interpolasi (Z3) sebesar 19,4%. Faktor topografi (elevasi, jarak, kemiringan) yang mempunyai hubungan yang paling kuat adalah elevasi dengan koefisien determinasi (R2) sebesar 0,517 atau mempunyai pengaruh sebesar 51,7%, sisanya dipengaruhi oleh faktor lain yang tidak diteliti seperti garis lintang, arah angin, suhu, hubungan dengan deretan gunung, dan relief. Sedangkan hubungan antara parameter topografi yang mempunyai hubungan paling kuat adalah elevasi terhadap jarak dengan koefisien determinasi (R2) sebesar 0,493 atau mempunyai pengaruh 49,3%. Kata Kunci: rasionalisasi, standar WMO, Kagan-Rodda, faktor topografi Sampean Watershed currently has 34 rain gauges with uneven distribution and less effective in maintenance. Therefore, it is necessary to study rationalization of rain gauges in Sampean Watershed with an area of 1,244.18 km2. Result of rationalization analysis of rain gauges by Kagan - Rodda method based on precipitation data daily average maximum area from Thiessen Polygon method, got the ideal number of rain gauges according to WMO standard is 12 pieces of  rain gauges with the value of relative root mean error (Z1) is  9.1% and the value of interpolation error (Z3) is 19.4%. Topographic factors (elevation, distance, slope) that have the strongest relationship is elevation with the coefficient of determination (R2) of 0.517 or has the effect is 51.7%, the rest is influenced by other factors not examined such like latitude, wind direction, temperature, relationship with rows of mountains, and reliefs. While the relationship between topographic parameters that have the strongest relationship is elevation to the distance with the coefficient of determination (R2) of 0.493 or has the effect is 49.3%. Keywords: rationalization, WMO standard, Kagan-Rodda, topography factors
KAJIAN PERBANDINGAN METODE PERHITUNGAN INTENSITAS HUJAN YANG SESUAI DI LINGKUNGAN UNIVERSITAS BRAWIJAYA, MALANG Puspasari, Ria; Harisuseno, Donny; Chandrasasi, Dian
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 1 (2018)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1236.008 KB)

Abstract

ABSTRAK : Intensitas hujan yang terjadi di wilayah Kota Malang cukup tinggi dan sering kali menyebabkan genangan termasuk di Area Universitas Brawijaya. Studi ini dilakukan untuk memperoleh metode perhitungan intensitas hujan yang sesuai di Wilayah Universitas Brawijaya Malang dengan membandingkan data intensitas hujan pengamatan yang diperoleh dari penakar hujan otomatis atau ARR (Automatic Rainfall Recorder) yang berada di Laboratorium Hidrologi Teknik Pengairan dengan metode Talbot, Sherman, Ishiguro dan Mononobe. Menurut hasil analisa perbandingan yang dilakukan antara Metode Talbot, Sherman, Ishiguro dan Mononobe didapatkan hasil yang paling baik dan sesuai dengan karakteristik wilayah Universitas Brawijaya adalah Metode Sherman. Dengan nilai deviasi rata-rata terkecil yaitu 0,335, kemudian Kesalahan Relatif (%) rata-rata 12,449%, dan juga Koefisien Efisiensi Nash-Sutcliffe rata-rata sebesar 0,928. Kurva IDF (Intensitas-Durasi-Frekuensi) Metode Sherman menunjukkan kecocokan untuk memprediksi Intensitas hujan yang sesuai dengan karakteristik wilayah Universitas Brawijaya yang digunakan untuk perhitungan limpasan (Run-Off) dengan rumus rasional dan perhitungan debit puncak yang berfungsi dalam perencanaan bangunan air.   Kata kunci: Intensitas hujan, Talbot, Sherman, Ishiguro, Mononobe, Kurva IDF   ABSTRACT : The Rainfall intensity in Malang Area is quite high and it usually causing run-off including at University of Brawijaya Area. This comparation study was conducted to obtain the appropriate rainfall intensity calculation method at University of Brawijaya Area by comparing Talbot, Sherman, Ishiguro and Mononobe method with the observation rainfall intensity data from ARR (Automatic Rainfall Recorder) that located in the Water Resources Engineering Hydrology Laboratory. According to the results of the analysis between the Talbot, Sherman, Ishiguro and Mononobe methods, the best results that appropriate with the University of Brawijaya area characteristics are Sherman Method. With the smallest average deviation value 0.335, Relative Error (%) averaged 12.449%, and Nash-Sutcliffe Efficiency Coefficient average 0.928. The IDF Curve (Intensity-Duration-Frequency) of Sherman Method shows the suitability to predict the rainfall that appropriate with the University of Brawijaya area characteristics which is used to calculate the run-off with rational formula and for calculating the peak discharge that functioned for water structure planning. Keywords: Rainfall Intensity, Talbot, Sherman, Ishiguro, Mononobe, IDF curve.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1062.223 KB)

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.
Perubahan Desain Dengan Uji Model Fisik Bendung Gerak Karangnongko Tahap I, Sungai Bengawan Solo Hilir Kabupaten Bojonegoro Dan Blora Chandrasasi, Dian; Priyantoro, Dwi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 1 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1803.446 KB)

Abstract

The purpose of the investigation of the physical model of Karangnongko barrage Phase I is to study the hydraulics flow conditions in the river due to the influence of the barrage and to determine the capacity of the gate to control and regulate the flow rate during the dry and rainy seasons. While the objectives of this investigation hydraulics physical model is to provide suggestions for improvements of design and recommendations of design in terms of hydraulics aspects of Karangnongko barrage. Three important points that obtained from the results of testing and analysis are as follows: On each gate opening operation does not cause symptoms of vortex and directions distribution of equitable velocity both upstream and downstream of the gates; Does not occur overtopping on the upstream of barrage when the flowing of discharge Q PMF and PMF REGIONAL , because the highest water level in the barrage upstream on +41.00 and +37.30 in the river downstream when the gate is fully opened; To avoid the vortex flow in the stilling basin it is recommended that operate 9 units barrage gate with openings evenly. With details of water level in the upstream +38.00 at the beginning of the rainy season, +40.00 during the dry season, and +41.00 during the flood discharge.Key words: Karangnongko barrage dam, the physical model test, design change.
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 6, No 1 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.741 KB)

Abstract

This research is for finding the suitable synthetic daily rainfall generating model in the Middle Brantas River Basin - East Java. There are 7 models being considered, 4 single-site models, (1) the two-part, (2) the transition probability matrix, (3) the resampling, and (4) the time series, and 3 multisite models, (5) the conditional, (6) the extension of single site Markov chain, and (7) the random cascade. All time-series produced by the models are then tested statistically. The results show that the differences between the historial time series and the synthetical time series are not too significant. It turn out that the synthetic time series of multisite models are better than the synthetic time series of single-site models.Keywords: generating model, synthetic data, daily rainfall.
perencanaan Instalasi Pengolahan Air (IPA) wudhu dengan mengggunakan alat filter sederhana di lingkungan SMP Negeri 6 Malang Juziwijaya, Dudiman; Chandrasasi, Dian; Prayogo, Tri Budi
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 2, No 2 (2019)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Limbah dari air wudhu putera di Masjid Al-Hidayah SMP Negeri 6 Malang tidak dimanfaatkan kembali, hal tersebut disebabkan tidak adanya instalasi pengolahan air. Tujuan dari penelitian ini adalah mengetahui kualitas air dari limbah wudhu, besar debit yang dihasilkan oleh alat filter sederhana, efisiensi penurunan alternatif alat filter sederhana antara Alternatif I (ketebalan pasir silika 70 cm dan ketebalan zeolit 30 cm), Alternatif II (ketebalan pasir silika 65 cm dan ketebalan zeolit 35 cm) dan Alternatif III (ketebalan pasir silika 60 cm dan ketebalan zeolit 40 cm) dan mengetahui efisiensi terbesar dari ketiga alternatif untuk memenuhi standar baku mutu air kelas I. Dari hasil uji kualitas air limbah air wudhu terdapat dua parameter yang tidak memenuhi standar,Yaitu BOD dan COD. Debit yang dihasilkan oleh alat filter sederhana Alternatif I 340.48 lt/jam, Alternatif II 359.041 lt/jam dan Alternatif III 377.62 lt/jam. efisiensi media filter untuk menurunkan dan menaikan nilai parameter dikelompokkan tidak efektif. Dari hasil analisa nilai efisiensi terbesar didapatkan alternatif I yaitu Chemical Oxygen Demand (COD) 22,57 % ,Dissolved Oxygen (DO) 5,86% , pH 7,50 % ,dan ammonia (NH3) 11,83%.
Analisis Laju Infiltrasi Dengan Metode Penggenangan (Flooding) Dan karakteristik Tanah Pada kawasan kampus II Universitas Brawijaya (Dieng) Ragananda, Elang Timur Muhammad Patih; Wahyuni, Sri; Chandrasasi, Dian
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 3, No 1 (2019)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pertumbuhan ekonomi menyebabkan peningkatan kesejahteraan masyarakat berakibat pada terlaksananya pembangunan infrastruktur. Pembangunan infrastruktur berskala besar berakibat pada perubahan tata guna lahan dan tutupan lahan pada area yang terdampak. Akibatnya terdapat peningkatan volume air hujan yang menjadi aliran permukaan tanpa sepenuhnya terinfiltrasi ke dalam tanah. Kajian ini dilaksanakan dengan tujuan untuk menganalisis laju infiltrasi menggunakan perhitungan Model Horton, Model Holtan, dan Model Philip serta untuk mengetahui karakteristik tanah dan karakteristik genangan yang terjadi. Penelitian ini dilaksanakan pada delapan titik yang tersebar di Kawasan Kampus II Universitas Brawijaya (Dieng). Pada setiap titik, terdapat sekali pembacaan laju infiltrasi menggunakan Turf-Tech Infiltrometer untuk mendapatkan data laju infiltrasi dan pengambilan sampel tanah. Sampel tanah yang didapatkan dilakukan pengujian karakteristik tanah di Laboratorium Tanah dan Air Tanah (Teknik Pengairan). Data hujan yang dipergunakan didapatkan dari penakar hujan (Teknik Pengairan). Analisis karakteristik genangan diperoleh dari penggabungan antara kurva laju infiltrasi dengan histogram hujan. Berdasarkan dari hasil analisis, disimpulkan bahwa perhitungan dengan Model Horton dan Model Holtan dianggap cocok berdasarkan kemudahan perhitungan serta perbandingan dengan kurva laju infiltrasi di lapangan. Hasil karakteristik tanah menunjukkan seluruh titik memiliki komposisi tanah dominan pasir dengan kandungan gravel dan fine sand. Hasil karakteristik genangan menunjukkan seluruh titik tinjau berpeluang terjadi genangan.The economic growth has cause to the growth of people’s welfare that result to materialization of infrastructure development. Large scale infrastructure development leads to the change of land use and land cover in affected area. As a result there is an increase in the volume of rainfall that becomes surface run off without fully infiltrated into ground. This study was conducted in order to analyze the infiltration rate using Horton’s Model, Holtan’s Model, and Philip’s Model calculation and also to find out the soil characteristics and surface run off characteristics that happened. This study was conducted in eight points that spread in The Campus II Area of Universitas Brawijaya (Dieng). In each point, there is an infiltration rate’s reading using Turf-Tech Infiltrometer to obtained infiltration rate’s data and soil sampling. The soil samples that obtained were tested for soil characteristics in The Soil and Groundwater Laboratory (Water Resources Engineering). The rainfall data that used were obtained from rainfall recorder (Water Resources Engineering). The surface run off characteristics analysis are obtained from the combining between infiltration rate curves with rainfall histogram. According to the analysis result, concluded that the calculation with Horton’s Model and Holtan’s Model are considered suitable based on the simplicity of calculation and the comparison with infiltration rate curves in the field. The result of soil characteristics shows that all points have a dominant sand composition with a fragment of gravel and fine sand. The result of the surface run off characteristics shows that all points are likely to occur surface run off.
PERENCANAAN INSTALASI PENGOLAHAN AIR LIMBAH (IPAL) RUMAH TANGGA DENGAN BANGUNAN PENYARING MINYAK DAN LEMAK SERTA SARINGAN PASIR CEPAT DI SALURAN DRAINASE SMPN 13 MALANG Sukoco, Arfinsyah Hanandha; Suhartanto, Ery; Chandrasasi, Dian
Jurnal Mahasiswa Jurusan Teknik Pengairan Vol 3, No 1 (2019)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Permasalahan drainase di perkotaan merupakan hal yang biasa terjadi. Saluran drainase yang bermasalah bisa menyebabkan berbagai macam kerugian bagi lingkungan sekitar. Banjir dan bau yang menyengat merupakan dampak dari bermasalahnya saluran drainase. SMPN 13 Malang dipilih sebagai lokasi yang ditinjau, karena adanya saluran drainase yang air limbahnya berasal dari limbah rumah tangga dan pertanian yang melewati halaman sekolah. Untuk mengurangi dampak dari permasalahan saluran drainase maka dibangunnya alat filter sederhana berupa penyaring minyak dan lemak serta saringan pasir cepat. Kedua alat dibangun karena tingginya kandungan minyak dan lemak serta detergen pada air limbah yang dibawa dalam saluran drainase. Tujuan lain dari pembangunan alat filter sederhana adalah untuk merubah kualitas air yang memiliki kandungan BOD, COD, deterjen, minyak dan lemak menjadi standar kelas II menurut PP No. 82 Tahun 2001. Pembangunan alat filter sederhana alternatif kedua dapat bekerja secara optimal dan didapatkan nilai efektifitas sebesar 13,337% pada BOD; 7,692% pada COD; 0,783% pada pH, dan 9,265% pada deterjen.  Drainage problem on urban area is a common thing. The problematic drainage could be causing a lot of disadvantages for the environmental around it. Some impact of a problematic drainage were flood and pungent odor. SMPN 13 Malang was chosen on this study because there is a drainage chanel. That it carried waste water from domestic and agricultural sector through the center of the school. In order to minimalized the bad impact of the problematic drainage chanel, designing wastewater treatment was needed. Grease trap and rapid sand filter were chosen because the waste water on the chanel was contaminated by grease and detergent. The other purpose of design wastewater treatment is to improve the water quality on the drainage chanel into second classification of water standard based on Government Regulation No. 82 in 2001. The second alternative of wastewater treatment was worked optimally and obtained effectiveness value of 13,337% on BOD; 7,692% on COD; 0,783% on pH; and – 9,265% on detergent.
PENDUGAAN KEDALAMAN AIR TANAH DENGAN GEOLISTRIK RESISTIVITAS DI DESA TEGALWERU, KECAMATAN DAU, KABUPATEN MALANG Dian Chandrasasi; Jadfan Sidqi Fidari; Lily Montarcih
Jurnal Disprotek Vol 14, No 1 (2023)
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/jdpt.v14i1.3825

Abstract

The main problem with the availability of ground water is generally due to the relatively deep wells of residents (information from residents of more than 50 m), so that it requires very expensive production well excavation costs, especially for villagers. Many people in Tegalweru Village, Dau District, Malang Regency still have not utilized the potential of groundwater in the area. The use of clean water is still sourced from other than ground water. This is because there is no information related to the presence of groundwater. The purpose of the study was to determine the soil layer that has groundwater potential (aquifer) based on the distribution of resistivity values and can be used as a basis for consideration in making boreholes. Based on geoelectrical data processing and analysis, it can be concluded that the groundwater potential in the garden area has good groundwater potential by identifying several aquifer layers up to a depth of 145 meters. The geoelectric point rock lithology no. 01, 02 and 03 consists of top soil, tuff and breccia layers.
Studi Efektifitas Dan Kinerja Instalasi Pengolahan Air Limbah (Ipal) Pada Peternakan Sapi Skala Rumah Tangga Yunita Kusuma Bintang; Dian Chandrasasi; Riyanto Haribowo
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 10 No. 1 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.35 KB) | DOI: 10.21776/ub.pengairan.2019.010.01.5

Abstract

Argosari Village is one of the villages that has cattle farms in Malang Regency. This research was conducted in one of the houses in Argosari Village and has 6 (six) of cows. In one day, each cow produces 100-150 liters of liquid waste. However, the liquid waste is immediately discharged into the drainage channel because there is no effort to process wastewater. On the results of laboratory tests, samples of wastewater, BOD, COD, TSS, NH3-N and pH in wastewater were respectively 4488 mg/L, 11000 mg/L, 850,5 mg/L, 479,3 mg/L, 8,5 mg/L. Based on the Regulation of the Minister of Environment Number 11 of 2009, the liquid waste has not met the quality standard. Wastewater Treatment Plant (WWTP) is needed to save reserves on cattle wastewater. The suitable installation in this condition is an initial settling basin, aerobic biofilter basin and a final settling basin. Aerobic biofilter is used so that liquid waste can be used biologically by using the media of honeycomb biofilter to grow and breed microorganisms. After processing the WWTP, there is a decrease in effluent, so WWTP can produce effluent BOD of 80,78 mg/L, COD = 198 mg/L, TSS = 5,10 mg/L, NH3-N = 23,9 mg/L and pH = 8,5.
Co-Authors Adihaningrum, Anita Andriyani Agung Rahmadi Donny Harisuseno Dwi Priyantoro Endang Purwati RN Ery Suhartanto Faqih, Nasyiin Fatchur Roehman Gunawan, Rachmat Ady INDRIANI, YULIA Jadfan Sidqi Fidari Juziwijaya, Dudiman Lily Montarcih Limantara Muhammad Ilham Munawaroh, Siti Rohmatul Nastain Puspasari, Ria Qomaruddin, Mochammad Ragananda, Elang Timur Muhammad Patih Rini Wahyu Sayekti Riyanto Haribowo Sholichin, Moch Sukoco, Arfinsyah Hanandha Tri Budi Prayogo, Tri Budi Very Dermawan Wahyuni, Sri Widandi Soetopo Yunita Kusuma Bintang