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APLIKASI METODE AMBANG BERTINGKAT UNTUK ANALISIS POTENSI BANJIR: STUDI PENDAHULUAN PADA 15 DAS DI JAWA TIMUR Indarto, Indarto; Wahyuningsih, Sri; Pudjojono, Muhardjo; Ahmad, Hamid; Bachtiar, Tino
JURNAL AGROTEKNOLOGI Vol 9 No 01 (2015)
Publisher : Faculty of Agricultural Technology, University of Jember

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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
STUDI PENDAHULUAN TENTANG PENERAPAN METODE AMBANG BERTINGKAT UNTUK ANALISIS KEKERINGAN HIDROLOGI PADA 15 DAS DI WILAYAH JAWA TIMUR Indarto, Indarto; Wahyuningsih, Sri; Pudjojono, Muhardjo; Ahmad, Hamid; Yusron, Ahmad
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
THE EFFECT OF MNEMONIC DEVICE METHOD TO TEACH VOCABULARY Ahmad, Hamid
JEELL (Journal of English Education, Linguistics and Literature) Vol 3, No 1 (2016)
Publisher : STKIP PGRI Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32682/jeel.v3i1.674

Abstract

This Pre Experimental One Group Pretest-Posttest design was carried out to find the effect of Mnemonic Device Method in teaching vocabulary to the first semester students at the English Education Study Program of IKIP-PGRI Pontianak in the Academic Year of 2016/2017. The population was the first semester students and the sample was B morning class consisted of 26 students. The sampling technique used was cluster random sampling. The instrument used to collect the data was a set of vocabulary test. The data were analyzed by using descriptive statistic and inferential statistic analysis. The findings were: (1) Mnemonic Device Method was effective to teach vocabulary; the mean score of pre-test and post-test were significantly different; and (2) the different between pre-test and post-test scores had strong effects to the students vocabulary mastery especially in the first semester students of English Education Study Program IKIP-PGRI Pontianak.
STUDI TENTANG PEMISAHAN ALIRAN DASAR PADA DAS DI WILAYAH UPT PSDA PASURUAN, JAWA TIMUR -, Indarto; Novita, Elda; Wahyuningsih, Sri; Ahmad, Hamid; Pudjojono, Muharjo
Jurnal Keteknikan Pertanian Vol. 4 No. 2 (2016): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

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Abstract

AbstractThis research aims to determine the range of parameter value and to select the appropriate method for baseflow separation. Seven (7) recursive-digital-filters (RDF) and two (2) graphical methods were used for this study. Discharge data from 6 watersheds in the administrative area of UPT PSDA Pasuruan in East Java were used to test those nine (9) algorithms. Firstly, each method was calibrate using daily discharge data for each year (annually) to separate baseflow. Then, optimal parameter values are obtained by averaging the annual values. Calibration process produce optimal parameters value for each watershed. Furthermore, validation are effectued using optimal parameter values from Pekalen watershed?s to other watersheds. The result show that optimal parameter values from Pekalen could be used to separate baseflow in other watersheds. Results also recommend two algorithems (EWMA filter and fixed interval) to be used more frequently for baseflow seperation on this region.AbstrakPenelitian bertujuan untuk menentukan nilai range parameter dan memilih metode pemisahan yang dapat direkomendasikan untuk diterapkan pada DAS-DAS di wilayah provinsi Jawa Timur. Tujuh (7) metode berbasis filter atau Recursive-Digital-Filter (RDF) dan dua (2) jenis metode berbasis grafis digunakan dalam penelitian ini. Data debit harian (dari 1996 sd 2005) yang berasal dari 6 DAS pada wilayah UPT PSDA Pasuruan dipilih sebagai sampel pengujian. Kalibrasi dilakukan menggunakan data debit musimkemarau (bulan Juli - September) pada tiap tahun-nya dan diperoleh kisaran nilai parameter untuk tiap metode pada masing-masing DAS. Proses validasi dilakukan dengan menggunakan nilai parameter DAS Pekalen, untuk menentukan baseflow pada DAS lain. Hasil penelitian menunjukkan bahwa nilai parameter dari DAS Pekalen dapat digunakan untuk menentukan aliran dasar (baseflow) pada DAS lain. Penelitian juga merekomendasikan filter EWMA dan metode grafis interval tetap (fixed interval) untuk digunakan di wilayah UPT PSDA Pasuruan.
PEMETAAN TINGKAT BAHAYA EROSI PADA LEVEL SUB-DAS: STUDI PADA DUA DAS IDENTIK Kartika, Ika; Indarto, Indarto; Pudjojono, Muharyo; Ahmad, Hamid
JURNAL AGROTEKNOLOGI Vol 10 No 01 (2016)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

This research deals with the prediction of erosion level by means of USLE and GIS software. USLE was used to calculate the erosion level at the watershed level, then the result was classified and mapped on the top of ArcGIS. Two similar sub-watersheds (Kloposawit and Rawatamtu) in theeastern part of East Java were used for this study. Input data consist of: (1) ASTER GDEM2 (resolution pixel ± 30m), (2) soil map layer, (3) land uses map, (4) rainfall data, and (5) ground control points. Research procedures include (1) data inventory, (2) analysis using excel and ArcGIS,(3) calculation of erosion level, (4) field survey using GPS, and (5) interpretation. The research result shows that about 56,4 km2 (7,8%) area of Kloposawit sub-watersheds is classified as high and very high erosion level rate. This area cover 8 districts at Bondowoso Regency. Furthermore, at Rawatamtu sub-watershed, high and very high erosion level cover 7 districts in Jember Regency.Keywords: erosion rate, USLE, erosion map, watershed
ANALISIS KINERJA MESIN PENGAYAK SERAT COCOFIBER Soekarno, Siswoyo; Ahmad, Hamid; Afandi, Muhammad Nasir
JURNAL AGROTEKNOLOGI Vol 8 No 02 (2014)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

Fiber Sieving machine is a machine which used for sieving or separating coconut fiber. The machine is made of steel and driven by an electric motor. The purpose of this research was to analyze the quality of cocofiber resulted by sieve machine fiber. The process to produced cocofiber required several stages, there were decomposition, sieving, drying, and packaging. The results showed that increasing the sieve size, generated more cocofiber, less cocopeat, and faster process. Based on ANOVA there were no different between three sieving size treatments (0,4 x 0,4) cm2, (1 x 1) cm2, (2 x 2) cm2).Keywords: sieve machine fiber, efficiency, the size of the sieve