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Journal : Jurnal AGROTEKNOLOGI

Uji keandlan model sacramento pada DAS Bedadung dan DAS Kloposawit

Jurnal AGROTEKNOLOGI Vol 4, No 1 (2010)
Publisher : Jurnal AGROTEKNOLOGI

Show Abstract | Original Source | Check in Google Scholar | Full PDF (419.58 KB)

Abstract

Sacramento model is once of rainfall runoff library (RRL) model which used to measure the flo component that include rainfall, evaporation and discharge.

UJI KEANDALAN MODEL SACRAMENTO PADA DAS BEDADUNG DAN DAS KLOPOSAWIT

Jurnal AGROTEKNOLOGI Vol 4, No 1 (2010)
Publisher : Jurnal AGROTEKNOLOGI

Show Abstract | Original Source | Check in Google Scholar | Full PDF (663.745 KB)

Abstract

Sacramento model is once of rainfall runoff Library (RRL) model which used to measure the flow components that include rainfall, evaporation and discharge. Sacramento model using soil moisture measurements to simulate the water balance at the catchment area. Sacramento model is a relatively new model so needs to be done the testing of this model. The testing process is often used for modeling is a process of calibration and validation. Aim this study is to evaluate the feasibility of the Sacramento model to be applied in the Bedadung and Kloposawit watershed and compare the optimal parameters the both watersheds on the basis of their characteristics. The methodology used is the calibration and validation. Calibration is done by automatic methods (generic) and the method of trial and error (manually) while the method for validating is simple-sample test. The results showed that the Sacramento model proper to applied in the Bedadung and Kloposawit watershed. This is indicated by the Nash coefficient, the coefficient of correlation and bias. By using generic methods on Bedadung watershed available the Nash coefficient value of 0.849, the correlation coefficient for 0.993 and bias of 8.11. Meanwhile, if using manual methods will be obtained the Nash coefficient for 0.906 and correlation coefficient equal to 0.997. While the generic calibration method in the Kloposawit watershed available the Nash coefficient values obtained for 0,894, the correlation coefficient for 0.967 and bias of 11.11. Meanwhile, if using manual methods will be obtained for Nash coefficient is 0.918 and correlation coefficient equal to 0968. The method of validation model with a simple -sample test. The result of validation for Klopo sawit watershed is the Nash coefficient value of 0.913 and the correlation coefficient for 0.989. While the Bedadung watershed is the Nash coefficient value of 0.860, the correlation coefficient for 0.991.Keywords: sacramento, calibration, validation, simple-sample test, nash coefficient

STUDI PENDAHULUAN TENTANG PENERAPAN METODE AMBANG BERTINGKAT UNTUK ANALISIS KEKERINGAN HIDROLOGI PADA 15 DAS DI WILAYAH JAWA TIMUR

JURNAL AGROTEKNOLOGI Vol 8 No 02 (2014)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

This research deals with identification of potential hydrological drought at 15 watersheds in Eastern part of East Java Province. Hydrological drought events is indicated by water deficits at the main river of the watersheds during certain period of record. Discharge data from 15 watersheds in East Java are used as main input for this analysis. TLM modul based on HydroOffice platform is used to calculate the deficit. Deficit event is counted when the discharge during more than > 7 days is below the threshold level. The threshold level is set up using percentile 90% (Q90). The value of Q90 is determined from discharge times series. Furthermore, the discharge is rangked from high to low flow. Results from TLM are then imported to EXCEL for further analysis. Furthermore, GIS software package (Quantum GIS) is used for mapping the spatial variation of discharge values (avarage, maximum, Q90), frequency and duration of deficits events. This analysis produces the spatial maps of discharge value and deficit events ( averaged annually).Keywords: TLM, hydrological drougth, percentile 90 (Q90), discharge

APLIKASI METODE AMBANG BERTINGKAT UNTUK ANALISIS POTENSI BANJIR: STUDI PENDAHULUAN PADA 15 DAS DI JAWA TIMUR

JURNAL AGROTEKNOLOGI Vol 9 No 01 (2015)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Original Source | Check in Google Scholar | Full PDF (791.758 KB)

Abstract

This research deals with identification of potential flood discharge from 15 watersheds located in Eastern Part of East Java Province. Recorded times series of daily discharges data are used as main input for the analysis. The discharge data for each watershed are rangked from lowest to high value. Then, the value of discharge correspond to quantile 90% (Q90) is calculated and determined as the threshold level for each watershed. In this case, discharge data more than > Q90 value is categorized as flood events. Then, the frequency of flood events are calculated based on monthly or annual time interval. Furthermore, spatial distribution of flood events are visualized by comparing the frekuency of flood events amongs the watersheds. Finally, thematics maps corresponde to waterheds properties, frequency of flood events, and rainfall event are presented.Keywords: Threslod level method, waterheds, flood indice, East Java

UJI KEANDALAN MODEL SACRAMENTO PADA DAS BEDADUNG DAN DAS KLOPOSAWIT

JURNAL AGROTEKNOLOGI Vol 4 No 01 (2010)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Original Source | Check in Google Scholar | Full PDF (663.745 KB)

Abstract

Sacramento model is once of rainfall runoff Library (RRL) model which used to measure the flow components that include rainfall, evaporation and discharge. Sacramento model using soil moisture measurements to simulate the water balance at the catchment area. Sacramento model is a relatively new model so needs to be done the testing of this model. The testing process is often used for modeling is a process of calibration and validation. Aim this study is to evaluate the feasibility of the Sacramento model to be applied in the Bedadung and Kloposawit watershed and compare the optimal parameters the both watersheds on the basis of their characteristics. The methodology used is the calibration and validation. Calibration is done by automatic methods (generic) and the method of trial and error (manually) while the method for validating is simple-sample test. The results showed that the Sacramento model proper to applied in the Bedadung and Kloposawit watershed. This is indicated by the Nash coefficient, the coefficient of correlation and bias. By using generic methods on Bedadung watershed available the Nash coefficient value of 0.849, the correlation coefficient for 0.993 and bias of 8.11. Meanwhile, if using manual methods will be obtained the Nash coefficient for 0.906 and correlation coefficient equal to 0.997. While the generic calibration method in the Kloposawit watershed available the Nash coefficient values obtained for 0,894, the correlation coefficient for 0.967 and bias of 11.11. Meanwhile, if using manual methods will be obtained for Nash coefficient is 0.918 and correlation coefficient equal to 0968. The method of validation model with a simple -sample test. The result of validation for Klopo sawit watershed is the Nash coefficient value of 0.913 and the correlation coefficient for 0.989. While the Bedadung watershed is the Nash coefficient value of 0.860, the correlation coefficient for 0.991.Keywords: sacramento, calibration, validation, simple-sample test, nash coefficient

BEBAN PENCEMARAN KALI JOMPO DI KECAMATAN PATRANG-KALIWATES KABUPATEN JEMBER

JURNAL AGROTEKNOLOGI Vol 12 No 01 (2018)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Original Source | Check in Google Scholar | Full PDF (346.199 KB)

Abstract

Jompo River is one of many tributaries in Jember District has become one of the water source for inhabitant around use for their daily needs. People activities can make water quality in Jompo River has been polluted gradually. The measurement need to knows water quality and polution load which enter in to Jompo River.  Location of research was start form Patrang to Kaliwates District with six node and  distantance 625 m. each node. This research was conducted in March-July 2017. Based on data analysis, average value of water quality ​​ were TSS was 67 mg / l, TDS was 104.78 mg / l, pH was 6.73, DO was 8.34 mg / l, and BOD was 1.20 mg / l. Based on Government Regulation No. 82 of 2001, the Jompo river water quality was included in class II criteria. The highest pollution load was at the 6th node of 394.39 kg/day. Jompo River has an average reaeration rate of 0.65 mg / l.day and deoxygenation rate of 0.284 mg / l.day. The river was ability to accomodate of pollution load because the rate of reaeration rate was higher than the value of deoxygenation rate. Keywords: Jompo River, pollution load, water quality

VARIASI KOMPOSISI INPUT PROSES ANAEROBIK UNTUK PRODUKSI BIOGAS PADA PENANGANAN LIMBAH CAIR KOPI

JURNAL AGROTEKNOLOGI Vol 12 No 01 (2018)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

Generally, there are two methods of coffee processing beans that are the dry processing and wet processing. The wet coffee processing will produce waste water containing organic materials. The high contain of organic matter in coffee wastewater can be used as biogas through anaerobic process. The biogas production from this processcould have variation of volume and composition depends on their feeding. The purposes of this research were to find the best biogas volume would be produced based on variation of input in batch feeding method (1) and to reduce coffee wastewater concentration by anaerobic process (2). The researched procedures were inoculum production, incubating adaptation and variation of batch feeding into the anaerobic reactor (4 variations). The variation of batch feeding were (1) 1:1; (2) 3:1; (3) 3.7:0.3 for water and (4) 3.6 : 0.4 for cow dung. The highest biogas volume and pollution load reduction were occurred in batch feeding composition 1:1. The volume of biogas production was 250 mL at day 6 and the percentage of parameters reduction were COD 57.35% and BOD 57%. Based on this research, there were also increasing gas volume from day 2 (95 ml) up to day 6 (250 ml) in each batch. Keywords: anaerobic process, biogas, coffee wastewater treatment, input variation

Co-Authors . Indarto ., Yusetyowati Abdullah, Teuku Aceng Komarudin Mutaqin Achmad subhi Gumilar Adyatma, Rengga Agus Supriyadi Agus Yodi Gunawan Ahmad Sofwan Ahmad Yusron, Ahmad Akriono, Muhammad Luqman Amri, Khabib Saiful Andries Lionardo, Andries Ani Rusilowati Anis Khiyaroh, Anis Arca Datam Sugiarto, Arca Datam Arif Budi Satrio Ash Shiddiq, Dimas Ghufron Ash-Shiddiq, Dimas Ghufron Askin, Askin Askin, Askin Astuti, Desi Widi Aulanni’am a Aziza, Siti Nur Budi Prayitno BUDI SETIADI DARYONO Cahyono Purbomartono DAHRI, IRSYAD Dani, Andrea Tri Rian Denny Irbianto Devi, Mike Indriana Dinda, Susanne Dini Siswani Mulia Djumadi Djumadi Edijatno Edijatno Eka Dewi Nurjayanti Eka Haryani, Eka Eko Prasetyo Eko Pudjadi, Eko Elida Novita Endah Subekti Endang Semiarti Erly Anna Rosita Ernawiati, Eti Ervi Rachma Dewi, Ervi Rachma F. Parasmawati Firman Fuad Wirakusumah Fitri, Susi Gofar Ismail Hamid Ahmad Hardiyanto Hardiyanto Hari Wijayanto Harsi D. Kusumaningrum Heri Nugroho Hery Maryanto, Hery Husaini . Husin, Farid I Wayan Suteja Ikhwanudin Ikhwanudin Indarto - Indarto Indarto Indriani . Ishak Abdulhak Istanto Istanto Istianah Istianah Jang, Soenghoe JB. Suparyatmo Suparyatmo, JB. Suparyatmo Jenny Ratna Suminar Joko Suryanto Joko Tri Sujiwo Khairunnissa, Aulia Khoiriyah, Naila Ulfa Komalasari, Gantina Lalu A. Zaenuri Latipah, Latipah Lawrie, Muhammad Dylan Lepong, Piter Lepong, Piter lina marlina, lina LUKMAN ILHAM, LUKMAN Lutfi Aris Sasongko M Nur Ihsan Malihatin Munawaroh, Malihatin Martha Lulus Lande, Martha Lulus Masyhudi, Lalu Mateus Sakundarno Adi, Mateus Sakundarno Moh. Djazari Muhamad Afandi, Muhamad Muhammad Ade Salim Muhardjo Pudjojono, Muhardjo Muslim, Khaerul Nadjadji Anwar Nafrida Ulfah, Nafrida Nanang Sugiarto Nanda Arista Rizki Nasir Saleh Nathan Hindarto Nieke Karnaningroem Nina Fitriyati Ningtias, Rahayu Ninik Hasanah, Ninik Nuada, I Wayan Nugraha E. Suyatma, Nugraha E. Nugroho Arifianto Nur Ducha Nur Hidayah, Afifah Nurjazuli Nurjazuli NURTITI SUNUSI Pradana, Hendra Andiananta Pramudya Annisa Firdausi Pratiwi Trisunuwati Puji Wahyumi, Puji Rahmadiyanti, Ridhani Ramdani, Aulia Ratna P, Kenah Renan Subantoro Rini Rita T. Marpaung Risma Sake, Risma Rita Irma, Rita Rossi Prabowo Rosyid Ridho Royaningsih, Nanik RUBEN DHARMAWAN Saefudin Saefudin Sahat, Afro Aransa Sasono Wibowo Satrijo Budiwibowo, Satrijo Saud Irsyad, Nasihin Savitri, Intan Maya Setiawan Setiawan Setyono, Bagus Dwi Hari Shinta Arum Wahyuningsih, Shinta Arum Shofia Nur Awami Sitti Raodhah, Sitti Soekarsono Hardjono, Soekarsono Sri Hartini Sri Heny Wahyuningsih, Sri Heny Sri Suparwitri, Sri St. A. Rahayuningsih Stiawan, Agus Sucipto Sucipto Sudaryati ., Sudaryati Suhardjo Widodo Dan, Suhardjo Widodo Suhartono Suhartono Suharyo Hadisaputro Sukadi, Desi Rahmawati Sukarti Moeljopawiro Suprapti Supardi Suprati Supardi Supriyanto Supriyanto Suroso . Susiarno, Hadi Sutawanir Darwis Sutiman B. Sumitro Sutrisno sutrisno Suyadi Suyadi Suyitno Suyitno Suyoto Suyoto Syahrul Basri Syaripuddin Syaripuddin Tino Bachtiar, Tino TITIK SUNDARI Tri Jalmo Trinil Susilawati Utami Dyah Syafitri Utami Kurniawati Wildana Latif Mahmudi, Wildana Latif Yanti Setianti Yudhatama, Tri Galih Yudi Widodo Yulianto Nugroho Yulianty Yulianty Yulinah S, Elin Yuwono Yuwono Zulkifli Zulkifli