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All Journal Maspari Journal Teknotan: Jurnal Industri Teknologi Pertanian IPTEK The Journal for Technology and Science BERKALA SAINSTEK KERN Jurnal Teknik Pengairan: Journal of Water Resources Engineering Rekayasa Sipil Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Forum Geografi Jurnal Teknik Sipil Jurnal Rekayasa Sipil dan Lingkungan Journal of Applied Geospatial Information Teras Jurnal U Karst Jurnal Aplikasi Teknik Sipil Jurnal Rekayasa Sipil AL-ULUM: JURNAL SAINS DAN TEKNOLOGI JURNAL SUMBER DAYA AIR Jurnal Teknika Journal of the Civil Engineering Forum PEKAT : Jurnal Pengabdian Kepada Masyarakat Geosfera Indonesia Jurnal Teknologi Sumberdaya Mineral Jurnal Teknik Sipil
Entin Hidayah
Department Of Civil Engineering, Faculty Of Engineering, University Of Jember, Kalimantan St. Number 37, Jember, East Java, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Mathematics Physics Public Health Social Sciences Transportation Other

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Analisis Prioritas Penanganan Kerusakan bendung di DAS Mayang Kabupaten Jember Syahya, Afriq Fadian; Widiarti, Wiwik Yunarni; Hidayah, Entin
Jurnal Rekayasa Sipil (JRS-Unand) Vol. 19 No. 1 (2023)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.19.1.1-13.2023

Abstract

Bertambah besarnya tanggung jawab pemerintah daerah menuntut semakin banyak jumlah anggaran yang harus dikeluarkan dalam pembangunan. Hal ini merupakan tantangan dalam melaksanakan pembangunan yang berkelanjutan dan berkeadilan. Salah satu tunggang jawab tersebut adalah melakukan penanganan terhadap kerusakan bangunan utama irigasi yang masing masing memiliki manfaat, tingkat kerusakan, dan keterbatasan yang berbeda beda, sehingga penentuan prioritas rehabilitasi sulit untuk dilakukan. Studi ini bertujuan untuk menentukan prioritas penanganan bendung berdasarkan analisis tiga kinerja yang meliputi kondisi prasarana, ketersediaan air, dan luas area irigasi. Penilaian ini dilakukan pada lima bendung yang berurutan pada aliran sungai utama DAS Mayang. Proses pengambilan data dilakukan dengan penyebaran kuisioner kepada 9 orang dari Dinas PU Pengairan Jember dan 1 orang dari UPT Pengairan Mayang. Sedangkan data ketersediaan air dan luas area irigasi didapatkan dari Dinas PU Pengairan Jember. Penentuan bobot kinerja bendung dilakukan menggunakan metode AHP (Analytical Hierarchy Process). Penilaian tingkat kerusakan bendung dilakukan dengan pengamatan langsung dilapangan yang mengacu pada Permen PU No.12/PRT/M/2015. Hasil pembobotan kinerja bendung menunjukan bahwa kondisi prasarana 49%, ketersediaan air 42%, dan luas area Irigasi 9%. Bendung Tegal Waru merupakan prioritas utama dalam penanganan kerusakan.
Flash Flood Susceptibility Mapping at Andungbiru Watershed, East Java Using AHP-Information Weighted Method Devi Ratna Handini; Entin Hidayah; Gusfan Halik
Geosfera Indonesia Vol. 6 No. 2 (2021): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v6i2.24173

Abstract

Flash floods are among the most frequent natural disasters caused by heavy rain associated with a severe thunderstorm, which leads to social and economic losses in infrastructure and agriculture. Therefore, this research aims to map flash flood potential susceptibility (FFPS) in the Pekalen watershed, using Geographic Information System (GIS) technology and statistical analysis to reduce the risk of flooding. The opinion and experience of an expert on the weight assessment method were carried out using the Analytical Hierarchy Process (AHP). Furthermore, the probability statistical methods and GIS were used in flash flood areas in the Pekalen watershed in Andungbiru, Probolinggo village. This study was carried out using geomorphological factors, namely elevation, slope, stream power index, and topographic wetness index, with a resolution of 30 m. Thematic map scale of the land use, river density, distance to the river, rainfall, and geology is in the ratio of is in a ratio of 1:25.000. Imagery processing was carried out using Landsat 8 30 m x 30 m resolution imagery, such as the Normalized Difference Vegetation Index. The result showed that the model map of FFPS obtained low 8%, low 23%, moderate 27%, moderate to high 26%, high 13%, and very high 2% index values. The next stage of modeling analysis led to validation using statistic receiver operating Characteristic Curve (ROC) of area Under Curve (AUC) with a value of 90.15. In conclusion, the factors that significantly trigger flash floods are distance to the river, land use, and slope. Keywords: AHP-weighted; information content; FFSP; GIS; Geomorphology Copyright (c) 2021 Geosfera Indonesia and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License
Rain Station Network Analysis in the Sampean Watershed: Comparison of Variations in Data Aggregation Entin Hidayah; Gusfan Halik; Minarni Nur Trilita
Geosfera Indonesia Vol. 7 No. 1 (2022): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v7i1.29160

Abstract

The lack of rainfall-runoff accuracy is important for some applications. The choice of data aggregation that affects the estimation results is important at the level of accuracy. Some commonly used aggregations are daily, ten days, and monthly rainfall. This study aimed to compare the results of the estimation of the effect of data aggregation and to analyze the density of the rain gauge network in the Sampean watershed. The evaluation of the rain station network is carried out through the Kagan calculation. Rainfall data are from the rainfall data records for 20 years at 33 rain gauge stations. Measurement of the performance of aggregation variations using the relationship between the correlation value of rainfall with the distance between station locations. Station network positioning is assessed from alignment errors and interpolation errors. The results showed differences in the correlation and estimation values ​​in the variation of data aggregation.The greater interval can increase the effectiveness of deployment with minimum error. Based on Kagan's analysis, there is an uneven distribution of gauge stations in the Sampean watershed eventhough the average and interpolation error in the monthly rainfall is less than 5%. It is this inequality that causes gauge stations to be inefficient. Keywords : Rain gauge network; correlation; Kagan; data aggregation Copyright (c) 2022 Geosfera Indonesia and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License
Performance of UAV Image for Flood Mapping with 2 Dimensional Model in Kaliputih River, Panti District Icha Derka; Entin Hidayah; Gusfan Halik
Geosfera Indonesia Vol. 7 No. 3 (2022): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v7i3.30169

Abstract

In January 2006, the flash flood in Panti Sub-district was a national disaster, causing damage to building infrastructure and fatalities. From this incident, it is necessary to have flood mitigation by providing a map of the distribution of flood inundation using a 2D hydraulic model to provide information regarding the extent of flood inundation in the study area. Due to the limited DEM data for 2D modeling, it is necessary to use UAV images to provide a DSM with good and higher resolution. This study aims to assess the performance of 2D flood modeling results using HEC-RAS equipped with RAS Mapper through UAV processing as input. There are 21 GCP in the study area as an increase in accuracy, the RMSE value in the horizontal direction is 0.3853m, and the vertical direction is 0.1836m. From the CE90 accuracy test results for a horizontal accuracy of 0.58m and LE90 for a vertical accuracy of 0.30m, it can be concluded that the map accuracy test meets the 1:2500 scale. Terrain maps are input to HEC-RAS; selected meshes are 5x5m and 2x2m. The modeling results can show the inundation depth in each GCP from the min-max depth. The model calibration shows an RMSE value of 0.183, while the flood depth validation shows an RMSE value of 0.13. In other words, modeling can represent the distribution of flood inundation in the study area and provide benefits for the community to be more alert in the event of a flood in the coming year. Keywords : UAV; GCP; DSM; HEC-RA; Flood mapping Copyright (c) 2022 Geosfera Indonesia and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License
Water Balance Assessment, Land Use Land Cover Change and Increasing Water Demand in Three Major Watersheds in Jember, East Java, Indonesia Indarto Indarto; Entin Hidayah; Erwan Bagus Setiawan
Geosfera Indonesia Vol. 8 No. 2 (2023): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v8i2.39131

Abstract

Jember Regency is the third largest agricultural area in East Java Province. Expansion of built-up and agricultural areas occurred and significantly changed the landscape. Moreover, increasing both types of land cover will increase water consumption. Therefore, there may be changes in the condition of the water balance in the Jember Regency area. This area has three major watersheds: Bedadung, Mayang, and Tanggul. This study evaluated the water balance condition at the three major watersheds in Jember, East Java, Indonesia. The WEAP (Water Evaluation and Planning) model calculated the water balance. Research procedures include (1) inventory of spatial and non-spatial data; (2) setup of the WEAP scheme; (3) Calibration; (4) Validation; and (5) Simulation of water balance model in scenario increasing water demand and land-use change). From 1997 to 2020, the water balance was evaluated using a 10-day interval. The results show that from the November 1st to August 2nd periods, the watershed can supply all demand sites with 100% coverage. However, from August 2nd t to October 3rd periods, the watershed’s ability to supply the water needs decreased. This deficit is due mainly to the uneven rainfall distribution between rainy and dry seasons. Variation in annual rainfall received from 1997 to 2020 also affects the water balance’s surplus and deficit. The fluctuation of land-use change contributed to the surplus and shortage of water balance. Keywords : Supply; Demand; Water Balance; WEAP; Jember; East Java Copyright (c) 2023 Geosfera Indonesia and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License
Effects of Land Use Change on Land Erosion and Land Critical Level Using GIS in the Mayang Watershed Mohamad Andhika Rafif; Wiwik Yunarni Widiarti; Entin Hidayah; Saifurridzal Saifurridzal; Mokhammad Farid Ma'ruf
Geosfera Indonesia Vol. 9 No. 2 (2024): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v9i2.39670

Abstract

The increasing population in an area often triggers heightened development, leading to diminished land availability and subsequent land conversion. This transformation, predominantly observed in agricultural and plantation lands, is driven by the need for residential areas. However, continuous land use changes contribute to erosion, a natural process wherein soil is transported, leading to sedimentation and eventual flooding. This study aims to identify critical areas prone to erosion and land degradation. To address this, we used the Universal Soil Loss Equation (USLE) method for erosion prediction, leveraging its simplicity and accuracy. This study focuses on the Mayang watershed in East Java, utilizing a combination of USLE, spectral index modeling, and Geographic Information System (GIS) techniques to estimate soil erosion and land criticality. By integrating methodologies and analyzing data spanning from 2011 to 2021, the study reveals shifts in erosion danger levels and land use patterns. While regions with low erosion remained stable, areas with medium to high erosion declined, yet those with very high erosion exhibited a worrisome increase. Changes in land use, including forest loss and urban expansion, underscore the ecological shifts exacerbating erosion hazards. The study emphasizing the necessity for targeted conservation strategies and comprehensive land management plans to mitigate erosion risks and preserve environmental sustainability.
Asesmen Kekeringan Meteorologi dengan Metode China Z Index (CZI) dan Standarized Precipitation Index (SPI) di DAS Sampean Baru, Kabupaten Bondowoso Billy Satria Nanda Satria; Gusfan Halik; Entin Hidayah
Jurnal Teknika Vol 16 No 1 (2024): MARET
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/jt.v16i1.1242

Abstract

Kekeringan merupakan bencana alam yang sangat sulit diprediksi awal kejadiannya. Kekeringan sering terjadi secara berulang diwilayah kering dan semi kiring di Indonesia karena defisit curah hujan yang salah satunya di DAS Sampean Baru, Kabupaten Bondowoso. Oleh karena itu, prediksi kekeringan yang tepat sangat dibutuhkan. Penelitian ini bertujuan untuk membandingkan analisis index kekeringan berdasarkan China Z Index (CZI) dan Standarized Precipitation Index (SPI) terhadap lahan pertanian yang terdampak kekeringan Kabupaten Bondowoso (1990-2021). Hasil dari index kekeringan metode CZI dan SPI menunjukkan metode CZI lebih sesuai terhadap histori kekeringan untuk lahan pertanian yang terjadi selama per 6 periode. Pada periode tersebut terdapat kesesuain data dimana secara berturut turut pada tahun 2007, 2008, dan 2021 terjadi kekeringan ekstream yang mengakibatkan lahan terdampak sekitar 403.9 Ha, 303 Ha, 127 Ha.
Exploring Hydraulic Behavior of Weir Using HEC-RAS at Semangir River Jember Regency Retnaningtias, Sefti Aryani; Hidayah, Entin; Halik, Gusfan
Journal of the Civil Engineering Forum Vol. 11 No. 2 (May 2025)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.14395

Abstract

Flooding significantly impacts communities living along riverbanks, causing severe damage to infrastructure and properties. The flood event on January 9, 2022, in Bumi Mangli Permai and Mangli Residence Housing, heavily damaged access roads. Effective flood control is essential to mitigate these risks, and one viable solution is the implementation of long storage systems, particularly motion weirs. This study explores the hydraulic behavior of the Semangir River in Jember Regency using the HEC-RAS program to model both fixed and motion weirs. Utilizing the SUH Nakayasu method, peak discharges for 25-year, 50-year, and 100-year return periods were estimated. The analysis revealed that the existing weir's design is inadequate for the 50-year return period. However, simulations indicate that a motion weir with gate dimensions of 1.5 m x 1.75 m offers improved hydraulic conditions, reducing water surface elevation and flow velocity compared to both the existing and initially planned weirs. These findings support the adoption of motion weirs as an effective flood control strategy for the Semangir River.
PEMETAAN ZONA RAWAN LONGSOR BERBASIS ANALISIS STABILITAS LERENG MENGGUNAKAN GIS DI WILAYAH GUMITIR, BANYUWANGI: Landslide susceptibility zone mapping based on slope stability analysis using GIS in Gumitir area, Banyuwangi Amalia, Isna; Hidayah, Prof. Entin; Nurtjahjaningtyas, Indra
Jurnal Teknika Vol 17 No 2 (2025): SEPTEMBER
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/jt.v17i2.1286

Abstract

Longsor di Lereng Gumitir tidak hanya berdampak pada gangguan transportasi, namun juga menimbulkan korban jiwa dan kerugian lingkungan, khususnya di Sungai Kalibaru. Oleh karena itu penelitian ini bertujuan untuk memperkirakan nilai faktor keamanan lereng; sebagai upaya pemantauan longsor. Metode penelitian dengan pemodelan stabilitas lereng dengan menggunakan data berat satuan, kohesi dan sudut geser yang diperoleh dari tabel hasil pengujian laboratorium, selain itu menggunakan data geometri lereng. Aplikasi GeoStudio digunakan dalam proses analisis stabilitas lereng dan geometri lereng diukur menggunakan total station yang kemudian digambarkan menggunakan AutoCAD. Penelitian ini diharapkan dapat memberikan pemahaman yang lebih baik mengenai faktor-faktor yang mempengaruhi tanah longsor serta kerangka kerja yang efektif dalam pemantauan tanah longsor di Lereng Gumitir dan daerah dengan karakteristik serupa lainnya. Hasil analisis kestabilan lereng didominasi oleh nilai faktor keamanan kurang dari 1,2 sehingga atau pada kondisi sangat rentan. Hasil penelitian ini dapat digunakan oleh pemerintah dan masyarakat setempat untuk meningkatkan kesiapsiagaan dan perencanaan mitigasi bencana tanah longsor.
EVALUATION OF DRAINAGE SYSTEM IN SRIKOYO STREET PATRANG DISTRICT, JEMBER REGENCY: Kajian Evaluasi Sistem Drainase Jalan Srikoyo Kecamatan Patrang Kabupaten Jember Tamimi, Rusyidina; Wahyuni, Sri; Hidayah, Entin
Jurnal Rekayasa Sipil dan Lingkungan Vol. 1 No. 01 (2017): JURNAL REKAYASA SIPIL DAN LINGKUNGAN
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1068.13 KB) | DOI: 10.19184/jrsl.v1i01.3741

Abstract

The water logging or even flood always occurs on Srikoyo road in every rainy season. The condition emerges because of the imbalance between the number of rainwater catchment area and the rapid increase of residential areas. Besides, the drainage channels along the road of Srikoyo are not sufficient enough to hold rainwater well. The process of evaluation is done by applying the method of hydrological analysis to determine the maximum discharge modeling used for evaluating the capacity of the existing drainage channels. The output of the hydrology analysis calculation comes up in rainfall intensity which is required as the data input for SWMM modeling. SWMM modeling is used in this evaluation since it is a model of rainfall-runoff simulation which is used for simulating both quantity and quality of the surface runoff of urban areas. The result of the evaluation using the software SWMM suggests that there are several number of water logging during the return period of 1, 2, 5, and 10 years. There are 3 areas encounter flood in the return period of 1 year, 10 areas in the return period of 2 years, 18 areas in the return period of 5 years, and 19 areas in the return period of 10 years. Pada musim penghujan Jalan Srikoyo selalu tergenangi air. Terjadinya genangan di Jalan Srikoyo diakibatkan oleh area resapan air hujan tidak seimbang dengan pesatnya wilayah pemukiman. Selain itu, saluran drainase di sepanjang ruas Jalan Srikoyo kurang memadai dan tidak dapat berfungsi dengan baik untuk menampung air hujan. Dengan adanya permasalahan ini dilakukan proses evaluasi, evaluasi ini dilakukan dengan menggunakan metode analisis hidrologi untuk menentukan debit pemodelan maksimal yang digunakan untuk mengevaluasi kapasitas saluran drainase yang ada. Dimana output perhitungan analisis hidrologi berupa intensitas hujan yang diperlukan sebagai data inputan untuk pemodelan SWMM. SWMM digunakan dalam evaluasi ini dikarenakan SWMM merupakan model simulasi hujan-aliran (rainfall-runoff) yang digunakan untuk mensimulasikan kuantitas maupun kualitas limpasan permukaan dari daerah perkotaan. Dari evaluasi menggunakan software SWMM, pada kala ulang 1 tahun didapatkan 3 node lokasi banjir, kala ulang 2 tahun didapatkan 10 node lokasi banjir, kala ulang 5 tahun didapatkan 18 node lokasi banjir dan kala ulang 10 tahun didapatkan 19 node lokasi banjir.
Co-Authors Adam Rifqi Ammarulsyah Adrin Tohari Afif Amiluddin Afriq Fadian Syahya Ageng Dwi Wicaksono Ahmad Rizza Lufafi Akbar, Sabda Alam Akhmad Hasanuddin Aldio Dhiva Pratama Alfiati Ningsih Alvian Sahal Mahfud Amalia, Isna Anik Ratnaningsih Arbi Tri Kuswardhana Bachtiar Ilham Maulana Badriani , Ririn Endah Bagas Rahmandita Subchan Billy Satria Nanda Satria Cahyani, Hajar Crisia Cantika Almaz Fildzah Dedy Dwi Prastyo Derka, Icha Tatrisya Dian Wahyu Khaulan Novianto Didik Efendi Edijatno Edijatno Edijatno Edijatno Elida Novita Erwan Bagus Setiawan Fachry Abda El Rahman Fahir Hassan Fanteri Aji Dharma Suparno Faradella, Maulida Febriyanto, Andreyan Fidyasari Kusuma Putri Fista Pebriyanti FX Suryadi Gandhi Teguh Lesmana Gati Annisa Hayu Gatrawan Muchammad Albirru Gusfan Halik Gusfan Halik Gusfan Halik Gusfan Halik Hajar Crisia Cahyani Handini, Devi Ratna Hilma Wasilah Robbani Icha Derka Imam Achmad Sadisun Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indra Nurtjahjaningtyas Jagat Adi Samudra Joice Prasasty September Kartini, Audiananti Meganandi Katminto, Katminto Kurnia Dewi Mulyani Machmud Budi Sulistiyo Mohamad Andhika Rafif Mohammad Afif Hasan Mokhammad Farid Ma'ruf Muhamad Zulvi Alhamda Muhammad Arifin Muhammad Feri Erfinansah Nadjadji Anwar Nadjadji Anwar Ningsih, Alfiati Nunung Nuring Hayati Nur Alif Ryanto Nur Azizah Affandy Nur Defitri Herlinda Nur Iriawan Nur Iriawan Nur Nafi’iyah Pebriyanti, Fista Prabowo Prabowo Prawira, Akbar Bagus Prihantono, Gunawan Eko Purnagusti, Yangga Putri, Art Palupi Pranoto Putu Adetya Pariartha Qatrinnada, Winona Fritzie Putri Rafif, Mohamad Andhika Retnaningtias, Sefti Aryani Retno Utami Agung Wahyono Retno Utami Agung Wiyono Retno Utami Agung Wiyono Riady, Gaizka Rabbani Rifky Aisyatul Faroh Rivaldi Dwiky Agustian Rusyidina Tamimi, Rusyidina Sabda Alam Akbar Saifurridzal, Saifurridzal Setyawan, Roeby Sonia Oktariyanti Sri Wahyuni Sugianti, Devi Hanurani Suparno Suparno Syahya, Afriq Fadian Taqiudin Haq Tedy Pranadiarso Usaamah Hadi Wei Koon Lee Wicaksono, Ega Fajar Wiwik Yunarni Widiarti Yangga Purnagusti Zulkifli Yusop