Jurnal Teknik Pengairan最新文献

{"title":"Perencanaan Jaringan Air Bersih di Desa Bolok Kecamatan Kupang Barat Kabupaten Kupang","authors":"Jordy G. Makunimau, Dolly W. Karels, Denik S. Krisnayanti","doi":"10.21776/ub.pengairan.2021.012.02.09","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.02.09","url":null,"abstract":"Bolok village is a village in Kupang district that have not served by water supply. The unavailable water supply is a problem that people should deal with in fulfill their daily water requirements. This research aims to planning water supply system to help people of Bolok village to fulfill their daily water requirements. The system planned by the Epanet 2.0 software using Hazen William Method. 2 water sources that can be used for the system planning that are Taman Eden bored-well owned by Bolok village with the discharge is 1,314 ltrs/sec and bored-well owned by Kupang District PDAM with the discharge is 5 ltrs/sec. Its population projection in 2028 done by arithmetic method, geometric, and least square. Based on the deviation","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130131891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pemodelan Numerik Bangunan Peredam Energi Bendungan Pomalaa dengan Analisa Komputasi Fluida Dinamis","authors":"Delivean Rakha Dermawan, Evi Nur Cahya, Dian Sisinggih","doi":"10.21776/ub.pengairan.2021.012.02.06","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.02.06","url":null,"abstract":"In the physical model testing Pomalaa Dam spillway, the series 4 energy dissipator which has a base elevation of +41,00 m has been able to dissipate the flow energy well at the Q 100y , Q 1000y , and Q PMF , but it is necessary to try alternative designs that more effective and efficient. The method used is a numerical model simulation using an application based on Computational Fluid Dynamics (CFD), then the result will be verified with physical model using Brier-Skill Score (BSS). After that, an alternative design was carried out in the form of a variation in the base elevation of the energy dissipator, that are +42,00 m; +43,00 m; and +44,00 m, then the best model is selected as a recommendation from the simulation result. The result of the verification of the numerical model using BSS show that numerical model is quite capable of representing the physical model. The best simulation result is an energy dissipator with a base elevation of +42,00 with efficiency of energy dissipation at Q 100y , Q 1000y","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132371566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluasi Kesesuaian Data Satelit sebagai Alternatif Ketersediaan Data Evaporasi di Waduk Wonorejo","authors":"Ennisa Dzisofi Amelia, Sri Wahyuni, Donny Harisuseno","doi":"10.21776/ub.pengairan.2021.012.02.05","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.02.05","url":null,"abstract":"Reservoir evaporation information is important to determine the significance of water loss due to evaporation which reaches 90-95% of the total water loss in the reservoir. The problem that is often faced with evaporation data is the lack of data availability. To overcome these problems, the GLDAS-2.1 and CFS-V2 satellites have the ability to estimate evaporation on the surface. The satellite has a high spatial and temporal resolution, wide-area coverage, near real-time data and recorded continuously, fast accessibility, and economical. However, satellite data can be used if it has a strong coherence with the observation data. The purpose of this research is to evaluate the suitability of the evaporation data from the GLDAS-2.1 and CFS-V2 satellites to the observational evaporation data and to recommend which satellite is appropriate for estimating evaporation so that it can be used as an alternative to the availability of evaporation data in the Wonorejo Reservoir. The evaluation carried out in this study uses statistical analysis at the Wonorejo Geophysical Station. Results of data calibration on the GLDAS-2.1 and CFS-V2 satellite produce a correction factor in the form of a polynomial regression equation. At","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125319308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Penentuan Desain Optimum Penstock untuk Pembangkit Listrik Tenaga Mikrohidro di Sungai Poreng, Jember","authors":"Aldio Dhiva Pratama, Entin Hidayah, Retno Utami Agung Wiyono","doi":"10.21776/ub.pengairan.2021.012.01.07","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.01.07","url":null,"abstract":"Pipa pesat merupakan saluran penghubung antara bak penenang dengan turbin pada rumah pembangkit. Meminimalisir kehilangan energi pada pipa pesat sangat penting untuk mengoptimalkan bangkitan energi listrik. Tujuan penelitian ini adalah melakukan optimasi diameter dan tebal pipa pesat untuk mencari hasil yang paling efisien, yang dikaji dari aspek hidrolika dan biayanya. Metode pemilihan pipa pesat yang optimal dapat ditentukan berdasarkan hubungan secara empiris, antara berbagai formula dari diameter dan tebal pipa pesat yang dinilai terhadap energi yang dihasilkan serta harga pipa pesat itu sendiri. Hasil penelitian menunjukkan bahwa besar diameter berbanding lurus dengan besar energi yang dihasilkan dan harga pipa pesat. Berdasarkan perbandingan, didapatkan diameter optimum pipa pesat sebesar 0,45 meter dengan tebal 0,0018 meter yang dihitung menggunakan formula dari Moffat, serta daya bangkitan sebesar 52,16 kW dan energi sebesar 456.914,33 kWh per tahunnya dengan harga pipa IDR 3.610.900 per meter pipa pesat. Penstock is the connecting channel between the forebay and the turbine in the power house. Minimizing the energy loss in the penstock is very important to optimize the generation of electrical energy. The purpose of this research is to optimize the diameter and thickness of penstock to find the most efficient results, which are examined from the aspects of hydraulics and costs. The optimal method of penstock selection can be determined based on the empirical relationship between the various formulas of the diameter and thickness of the penstock as assessed by the energy produced and the price of the penstock itself. The results showed that the diameter was directly proportional to the amount of energy produced and penstock price. Based on the comparison, the optimum diameter of the penstock is 0,45 meters with a thickness of 0,0018 meters which is calculated using the formula from Moffat, as well as a generation power of 52,16 kW and energy of 456.914,33 kWh yearly with the price of IDR 3.610.900 per meter penstock pipe.","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"12 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113977371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Model Penjernih Air Hujan Untuk Air Bersih","authors":"Rahmah Dara Lufira, Lilik Zuhriyah, Satwika Desantina Muktiningsih, Aldila Putri Rahayu, Denny Ahmad Fauzi","doi":"10.21776/ub.pengairan.2021.012.01.06","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.01.06","url":null,"abstract":"Menabung air hujan adalah salah satu upaya untuk mengendalikan kekurangan air dimusim kemarau. Sistem penjernih air hujan menjadi air bersih ini adalah rangkaian kegiatan gerakan menabung air hujan dan menggunakannya kembali untuk konservasi air tanah serta kebutuhan sehari-hari. Desa Arjosari mengalami kekurangan air bersih pada saat musim kemarau, maka dari itu peneliti membuat sistem penjernih air ini dengan memanfaatkan air hujan. Metode yang digunakan adalah tandon air kemudian pipa penjernih yang terdiri dari Zeolit, kerikil, Arang, ijuk dan spoons. Hasil analisa yang telah dilakukan dilaboratorium menggunakan parameter logam metode AAS (atomic absorbance spectrofotometri), parameter anion (spectrofotometer uv vis), dan parameter fisik (water quality checker dan tss meter). Didapatkan rata-rata nilai untuk pH 6.71, TSS 0, TDS 40,3, CaCO3 0, kandungan besi 0,032, Mangan 0,113. Pengujian yang telah dilakukan, mendapatkan hasil yang sesuai dengan persyaratan menurut Peraturan Menteri Kesehatan Republik Indonesia No. 492/MENKES/PER/IV/2010. Sehingga Air yang dipakai memenuhi syarat penggunaan air bersih.","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124696434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Posisi Kemiringan Vertikal dan Horizontal terhadap Kemampuan Infiltrasi dan Permeabilitas Beton Porous dengan Recycled Aggregate The Effect of Vertical and Horizontal Tilt Position on Infiltration Rate and Permeability of Pervious Concrete with Recycled Aggregate","authors":"K. Safitri, Evi Nur Cahya, Riyanto Haribowo","doi":"10.21776/ub.pengairan.2021.012.01.03","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.01.03","url":null,"abstract":"Abstrak Peningkatan pembangunan infrastruktur mengakibatkan perubahan tata guna lahan yang meminimalkan laju infiltrasi dan meningkatkan limpasan permukaan. Dibutuhkan alternatif penanganan yang tepat dalam mengatasi genangan air yaitu dengan penggunaan beton porous sebagai tutupan lahan. Limbah beton dimanfaatkan dalam pembuatan beton porous sebagai pengganti agregat kasar, yang disebut Recycled Coarse Aggregate (RCA). Untuk mengetahui kemampuan beton porous dalam mengatasi limpasan air pada permukaan miring dilakukan penelitian mengenai pengaruh kemiringan beton porous dengan agregat daur ulang terhadap kemampuan infiltrasi dan permeabilitasnya. Pengujian infiltrasi dilakukan pada kemiringan horizontal 2% dan kemiringan vertikal 0%, 10%, 20%, 30% menggunakan standar ASTM C 1701/C 1701M – 09. Dari hasil pengujian yang dilakukan, diketahui bahwa kemiringan vertikal dan horizontal beton porous mempengaruhi kemampuan infiltrasinya. Laju infiltrasi pada beton porous semakin berkurang seiring dengan bertambahnya kemiringan vertikal. Jenis agregrat juga diketahui mempengaruhi kemampuan permeabilitas beton porous. Beton porous dengan recycled coarse aggregate (RCA) memiliki kemampuan permeabilitas yang lebih besar dibandingkan dengan beton porous dengan natural coarse aggregate (NCA). Abstract Increased infrastructure constructions have resulted in land-use change which minimizes water infiltration into the soil and increases the amount of surface runoff. An alternative solution is needed to handle puddles, which is by using pervious concrete as land cover. Concrete waste is used as a substitute for coarse aggregate, which is called Recycled Coarse Aggregate (RCA). To determine the ability of pervious concrete to overcome water runoff on sloping surfaces, a study was conducted to identify the effect of the tilt position of pervious concrete on its infiltration rate and permeability. The infiltration test is carried out with a 2% of horizontal tilt and 0%, 10%, 20%, 30% vertical tilt following the procedures of  ASTM C 1701/C 1701M – 09. Based on the results of the research, it can be concluded that the vertical and horizontal tilt position on previous concrete affects the infiltration rate. And the type of aggregate does affect the permeability of pervious concrete, pervious concrete with recycled coarse aggregate (RCA) has greater permeability than pervious concrete with natural coarse aggregate (NCA).","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131585084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluasi Rasionalisasi Stasiun Hujan Metode Kagan Rodda dengan Mempertimbangkan Kriteria Penentuan Lokasi Pembangunan Stasiun Hujan","authors":"Reza Renaldhy, I. W. Yasa, Ery Setiawan","doi":"10.21776/ub.pengairan.2021.012.01.05","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.01.05","url":null,"abstract":"This study aims to evaluate the rain station rationalization method using Kagan. In its application, the Kagan method can give results in the form of the number of stations and the location of the placement of the rain station network in an area. However, in its application in the field, the recommendation in the form of placement points does not meet the location criteria for the construction of a rain station. The results of the evaluation carried out at WS Sumbawa show that there are 116 rain stations that need to be added, but after being evaluated using Google Earth to see the suitability of the location against the criteria for the location of the rain station construction, only 36 points meet the criteria. To optimize this method, the recommendation points that do not meet the requirements are moved to the nearest water structure location such as a dam, embung or weir, so that 19 points are moved to the nearest water structure and 61 points are not recommended for the construction of a rain station. These results prove that the recommended number and placement points from the rationalization analysis of the Kagan method cannot be directly applied in the field, the recommendations given must be re-evaluated by taking into account the principles in determining the location of rain post construction.","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122828250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengendalian Banjir dengan Konsep Model Desa Spons Berbasis Ecodrains (studi kasus: DAS Kamoning Kabupaten Sampang, Madura)","authors":"Zaiful Muqaddas, Zaenal Kusuma, Runi Asmaranto, Bagyo Yanuwiadi","doi":"10.21776/ub.pengairan.2021.012.01.04","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.01.04","url":null,"abstract":"DAS Kamoning sering mengalami banjir yang terjadi hampir tiap tahun, permasalahan ini karena tata guna lahan DAS didominasi oleh area tegalan seluas 55,48% yang menjadi area limpasan, jika ditambahi dengan luas permukiman 15,59% yang  belum dibangun sistem ecodrains maka luas area limpasan air hujan yg menjadi penyebab banjir menjadi 71 % dari luas DAS. Kondisi ini semakin tidak proporsinal ketika jenis tanah di DAS Kamoning 72 % juga didominasi tanah kategori D (laju infiltrasi sangat lambat). Melalui model desa spons berbasis ecodrains dilakukan perubahan pola ruang desa yang secara otomatis merubah pola ruang di DAS. Dengan pengaturan 40% luas vegetasi di setiap desa dengan mngurangi area tegalan, penambahan sumur resapan disetiap rumah/bangunan beratap dan pembangunan sumur injeksi di lahan pertanian tiap 0,16 ha. Hasil analisanya dibuktikan debit limpasan banjir dapat direduksi hingga 78,14% dan berada dibawah kapasitas Sungai Kota Sampan","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124893782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Studi Perencanaan Dinding Penahan Sebagai Upaya Pengendalian Banjir Sungai Meduri Kabupaten Pekalongan Jawa Tengah","authors":"Ekhsan Zainuri, Heri Suprijanto, Dian Sisinggih","doi":"10.21776/ub.pengairan.2021.012.01.01","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.01.01","url":null,"abstract":"Permasalahan yang sering ditimbulkan oleh banjir adalah karena adanya daya rusak air. Bangunan dinding penahan menjadi salah satu upaya dalam pengendalian banjir. Dalam merencanakan bangunan dinding penahan diperlukan beberapa analisis baik hidrologi, hidrolika, maupun keamanan struktur bangunan dengan memperhatikan aspek ekonomis. Pada studi ini, perhitungan debit banjir rancangan digunakan Hidrograf Satuan Sintetik Nakayasu dengan debit kala ulang Q25 th sebesar 258,807 m 3 /dt pada sungai Meduri dan sebesar 201,544 m 3 /dt pada sungai Bremi. Penentuan tinggi tanggul didapatkan dari analisis tinggi muka air banjir dengan bantuan aplikasi HEC-RAS pada kondisi eksisting dengan debit kala ulang Q25 th, didapatkan tinggi muka air banjir 2,22 m dan direncanakan tinggi tanggul 7,5 m dari dasar sungai. Analisis terhadap keamanan struktur bangunan dinding penahan yang diperhitungkan pada stabilitas bangunan baik keadaan normal maupun gempa, daya dukung tanah, penulangan, maupun reaksi pondasi didapatkan desain telah memenuhi persyaratan. Didapatkan Rencana Anggaran Biaya (RAB) dalam merencanakan dinding penahan sepanjang 6,78 km sebesar Rp  156.882.300.000 (Seratus Lima Puluh Enam Milyar Delapan Ratus Delapan Puluh Dua Juta Tiga Ratus Ribu Rupiah). Flooding is often causing a problem because of its destructive power. Retaining wall structure is one among the efforts to control the floods. This study aims to determine the problem of flooding that occurs in the Meduri river in Pekalongan regency so that an appropriate treatment can be planned, for example a retaining wall. Several analysis are required in order to plan retaining wall structure, such as hydrology, hydraulics, and safety factor of its structure regarding to economic aspect. This study is using a Nakayasu Synthetic Unit Hydrograph for its design flood discharge with Q25 return flowrate at 258.807 m3/s in Meduri River and 201.544 m3/s in Bremi River. The height of the embankment is obtained from analysis of flood water level using HEC-RAS with this following existing conditions: Q25 return flowrate, flood water level at 2.22 m, and height of dyke is planned at 7.5 from riverbed. The safety analysis of this retaining wall is calculated by stability normal, earthquake, soil bearing capacity, reinforcement, and also foundation reaction are already meet the criteria standard.  The budget plan at this planning of 6.78 km retaining wall is IDR 156,882,300,000","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115038677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pola Spasial Kekeringan di Jawa Barat Pada Kondisi El Nino Berbasis Metode Palmer Drought Severity Index (PDSI)","authors":"Ika Purnamasari, T. Saputra, Suci Ristiyana","doi":"10.21776/ub.pengairan.2021.012.01.02","DOIUrl":"https://doi.org/10.21776/ub.pengairan.2021.012.01.02","url":null,"abstract":"The hydrometeorological problem in the form of drought is a challenge facing Indonesia, especially West Java. The occurrence of drought in West Java, which has a monsoon climate, is closely related to the El Nino South Oscillation (ENSO) phenomenon. One method for quantifying the level of drought is the Palmer method or better known as the Palmer Drought Severity Index (PDSI). Rainfall data from the Climate Research Unit (CRU) 2000-2012 was used in this study. PDSI calculations differ in normal conditions and El Nino conditions. The spatial pattern of PDSI calculations is then mapped based on seasonality. The spatial drought model based on the Palmer index shows that the peak of drought occurs in June -Juli- August (JJA) and September - October - November (SON) . The drought is evenly distributed throughout West Java in the July to August period that centered in northern West Java from September to November. In the January to March period, the drought only concentrated in a small part of the western and southern parts of West Java. El Nino events during the dry season (June-November) increase the severity of drought in West Java. Permasalahan hidrometeorologi berupa kekeringan menjadi tantangan yang dihadapi Indonesia, khususnya Jawa Barat. Terjadinya kekeringan di Jawa Barat yang beriklim muson erat kaitannya dengan fenomena El Nino South Oscillation (ENSO). Salah satu metode untuk mengukur tingkat kekeringan adalah dengan metode Palmer atau yang lebih dikenal dengan Palmer Drought Severity Index (PDSI). Data curah hujan dari Climate Research Unit (CRU) 2000-2012 digunakan dalam studi ini. Perhitungan PDSI berbeda pada kondisi normal dan kondisi El Nino. Pola spasial penghitungan PDSI kemudian dipetakan berdasarkan musim. Model spasial kekeringan berdasarkan indeks Palmer menunjukkan bahwa puncak kekeringan terjadi pada bulan Juni-Juli-Agustus (JJA) dan September-Oktober-November (SON). Kekeringan merata di seluruh Jawa Barat pada periode Juli hingga Agustus yang berpusat di Jawa Barat bagian utara dari September hingga November. Pada periode Januari hingga Maret, kekeringan hanya terkonsentrasi di sebagian kecil wilayah Jawa Barat bagian barat dan selatan. Peristiwa El Nino pada musim kemarau (Juni-November) meningkatkan parahnya kekeringan di Jawa Barat.","PeriodicalId":236511,"journal":{"name":"Jurnal Teknik Pengairan","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133220172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}