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All Journal KERN Jurnal Rekayasa Sipil dan Lingkungan Jambura Journal of Mathematics Jurnal Syntax Transformation Nusantara Science and Technology Proceedings KERN : Jurnal Ilmiah Teknik Sipil Innovative: Journal Of Social Science Research
Handajani, Novie
Universitas Pembangunan Nasional Veteran Jawa Timur
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STUDI LAJU EROSI SEDIMEN DAS KALI SAMPEAN HULU KABUPATEN BONDOWOSO Handajani, Novie; Trilita, Minarni Nur
Kern : Jurnal Ilmiah Teknik Sipil Vol 1, No 1 (2011): Jurnal Ilmiah Teknik Sipil KERN
Publisher : Kern : Jurnal Ilmiah Teknik Sipil

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Abstract

Banjir bandang di Kota Situbondo Pebruari 2008 sangat berkaitan dengan unsur utama yaitu curah hujan, tanaman dan tanah. Permasalahan yang terjadi adalah  adanya ketidakseimbangan diantara ketiga unsur tersebut. Sehingga perlu adanya studi tentang hal tersebut. Kegiatan studi ini akan dititikberatkan pada kali Sampean Hulu. Dimana banyak anak–anak sungai yang bermuara di kali Sampeyan yang berasal dari Gunung Raung, Gunung Sungket, Gunung Argopuro, Gunung Malang dan gunung–gunung kecil lainnya. Sehingga menyebabkan banyak terdapat titik rawan longsor pada sekeliling dataran tinggi. Dengan menggunakan suatu pendekatan analisa untuk menjelaskan kejadian di atas, dimana banjir dan erosi adalah sesuatu yang paling terkait. Sudah menjadi pengetahuan umum bahwa hanya sebagian kecil material sedimen yang tererosi di lahan (DAS) Kali Sampeyan mencapai outlet basin/sungai terdekat. Analisa yang dipakai untuk menguji data dipakai metode yang dipakai untuk memprediksi tingkat erosi lahan dipergunakan metode USLE. Hasil di atas diharapkan dapat memberikan suatu gambaran mengenai kondisi DAS yang ada. Setelah dilakukan perhitungan menggunakan analisa USLE diperoleh nilai erosi tanah sebesar 32,98 ton/ha/tahun dan masuk kelas II dalam tingkat bahaya erosi. Besarnya tingkat erosi yang terjadi pada DAS Kali Sampean Hulu disebabkan karena tata guna lahan pada lokasi studi sebagian besar adalah berupa pemukiman.Kata kunci: banjir, metode USLE, laju erosi.
PENGOPERASIAN POMPA AIR PRAPEN TERHADAP JARINGAN SALURAN DRAINASE JEMURSARI-PRAPEN KOTA SURABAYA Handajani, Novie; Handika, Sadmay Gigid
Kern : Jurnal Ilmiah Teknik Sipil Vol 2, No 1 (2012): Jurnal Ilmiah Teknik Sipil KERN
Publisher : Kern : Jurnal Ilmiah Teknik Sipil

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Abstract

Saluran drainase Jemursari-Prapen adalah salah satu saluran drainase yang berada di Kota Surabaya yang mana alirannya mengarah ke Kali Surabaya. Keberadaan saluran drainase Jemursari-Prapen sangat vital terhadap pengaturan debit banjir di daerah Jemursari, Kendangsari dan Prapen. Saluran drainase Jemursari-Prapen mempunyai morfologi saluran yang cukup lurus dan relatif datar. Akan tetapi, kecilnya kapasitas penampang exsisting saluran dan tingginya curah hujan di sepanjang saluran drainase Jemursari-Prapen menyebabkan terjadinya banjir.Akibatnya meluapnya air pada saat musim hujan menjadi sebuah permasalahan.Hal ini melatar belakangi perlunya dilakukan perencanaan pengendalian banjir pada saluran tersebut, dengan tujuan untuk meminimalisasi kerugian akibat banjir.Metode analisis yang di pakai adalah metode analisis perhitungan hidrologi. Dengan bantuan program HEC-RAS 4.1.0, besar kemampuan penampang saluran drainase pada kondisi eksisting dapat diketahui. Direncanakan debit banjir rencan lima tahun (Q5 tahun). Berdasarkan hasil analisa dengan menggunakan program HEC-RAS 4.1.0 pada kondisi eksisting Saluran Drainase Jemursari Prapen, beberapa penampang pada nomor patok cross section 0,8; 0,9; 1; 2; 2,1;  4; 7 tidak mampu menampung debit aliran. Dari hasil analisa didesain dengan menggunakan banjir Q5 tahun didapat bahwa cara normalisasi dimensi saluran drainase Jemursari, direncanakan b = 6 m, z = 0, I = 0,0004. Jumlah tiga pompa air yang terpasang dengan kondisi normalisasi mampu mengatasi luapan air pada Saluran Drainase Jemursar-Prapen pada Q5 tahun. Pengoperasian satu pompa air dinilai paling efektif karena sudah cukup mampu menampung Q5 tahun pada kondisi normalisasi.Kata kunci : banjir, drainase, pump station, HEC-RAS
Mapping Sea Surface Temperature and Its Correlation with The Acidity of Sea Water on the Coast of Kwanyar Madura Island Siti Zainab; Novie Handajani; Hendrata Wibisana
Nusantara Science and Technology Proceedings 4th International Seminar of Research Month
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2019.0472

Abstract

Sea surface temperature is one parameter to determine the condition of the ecosystem of a waters, besides that there are other parameters, namely the acidity of sea water which is a number that indicates the degree of an ac id and base of the aquatic environment, where generally the coastal environment has an acidity value below 8 so that changes from this value will disrupt life as a whole for the coastal environment. The purpose of this study is to find a mathematical model of SST and pH that can describe the situation of the coastal area, where as a case study is the Kwanyar coast in Bangkalan district, Madura Island. The method developed here is the least square method to find the optimum mathematical model of these parameters, in addition to that by calculating the algorithm of several channels of visible wavelengths owned by Aqua Modis images which are 412 nm, 531 nm and 667 nm. The results obtained from this study are for the optimum wavelength of sea surface temperature is 667 nm while for pH is 531 nm. From the statistical analysis for the t-test carried out, the results showed no significant correlation between sea surface temperature with a pH value where both parameters showed a statistically low correlation value with an error rate of 5% and the existing Pearson correlation test equipment. The conclusion is that for the Kwanyar Bangkalan coastline the temperature is still in the normal threshold as well as the existing pH value, only these two parameters cannot be stated as a causal relationship, where the temperature rise will have an impact on pH changes and vice versa.
Analysis and Mapping of Changes in Salinity Concentration Influence by Acidity Value in Kwanyar Coastal, Bangkalan Madura District Siti Zainab; Novie Handajani; Hendrata Wibisana
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0519

Abstract

Kwanyar in Bangkalan Madura district is an area that is not very fertile, the soil contains limestone and the coastal areas of the coast are the result of reclamation for several years. Thus, what used to be water areas turn into land. The purpose of this research is to map and analyze the effect of changes in acidity values on the coast with changes in salinity values that accompany them so that the most suitable mathematical model can be found to describe the coastal conditions of the Kwanyar area. The method developed to map and analyze is the use of remote sensing technology using Terra MODIS satellite imagery with a pixel resolution of 1 kilometer. The results obtained from a series of measurements carried out are that the most suitable wavelength for salinity mapping is 667 nanometers with an exponential mathematical model. This study concludes that the value of acidity in the aquatic environment is statistically sufficient to influence changes in the concentration of salinity in the Kwanyar area, Bangkalan Madura district
The Mathematics Model Analysis of Distribution Concentration of Total Suspended Solid in Gresik Coastal Coast with Landsat 8 Satellite Imagery Hendrata Wibisana; Novie Handajani; Primasari Cahya Wardhani
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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Abstract

Total suspended solid is one of the useful parameters to detect the turbidity level that occurs in the body of water. The concentration distribution from total suspended solid is an activity that is quite interesting to study especially in the coastal areas, knowing the distribution value of total suspended solids, it is possible to know the change of ecosystem. The Ujung Pangkah Gresik is an area chosen as an example to determine the distribution concentration of total suspended solid value by making an appropriate mathematical model that can imagine the condition of the body of water in that coastal area. Thus, the purpose of this study was to investigate the mathematics model analysis to imagine the distribution concentration of total suspended solids. The method to model this is by remote sensing that was used in Landsat 8 satellite imagery. In addition, this study used the remote sensing method on the visible light canal (red, green, and blue) to determine the mathematics model analysis of total suspended concentration distribution. The result showed that there was red canal has significant image result compared to another visible canal. The red canal result showed the mathematics model exponential with correlation value R 0.873 has a significant effect to image the total suspended solids concentration distribution. This study concludes that Landsat 8 satellite image can quite effectively and accurately be used to map the distribution of total suspended solid especially in the shallow water environment adjacent to ponds and estuary.
Identification of Flood Distribution Using Sentinel-1 Satellite Images (Case Study: Gresik Regency) Siti Zainab; Novie Handajani; Hendrata Wibisana
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2464

Abstract

Population growth is highly correlated with development activities. Development activities bring changes in land use from one period to the next, bringing relatively high changes, especially changes in land use. Changes in land use that occurs will be a potential for floods, landslides, and prolonged drought if not controlled. It is necessary to do a mapping caused by the impact of the flood disaster, which will later be used as a database which is a regional administration need for land cover information as well as consideration for making a policy for the benefit of the surrounding community. Regional administration needs for land cover information will support planning in an area. Remote sensing is a medium that can monitor the dynamics of land-use change quickly and at a relatively low cost. And by using Sentinel-1 satellite imagery data with the GEE Platform (google earth engine). GEE (google earth engine) is a cloud-based computing platform for performing geospatial analysis, with petabytes of data for scientific analysis and visualization of geospatial data on a global scale. This study aims to identify the distribution of flood areas affected by floods in the Gresik Regency. The results of the study show that the estimated most affected by flooding is the estimated population affected by 6,800,071 Ha. Meanwhile, the next affected area is the Estimated Urban Land of 666,033 Ha. The last estimate affected by the smallest flood is 158,848 hectares of agricultural land. The districts affected by the flood include Cerme, Morowudi, Betatu, Benjeng, Balung Panggang, Gresik Regency.
Pengendalian Banjir dengan Sudetan pada Sungai Marmoyo Kabupaten Jombang Marta Kusuma Ningrum; Minarni Nur Trilita; Novie Handajani
KERN Vol 7 No 1 (2021): Jurnal KERN: April 2021
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (438.307 KB) | DOI: 10.33005/kern.v7i1.52

Abstract

Sungai Marmoyo merupakan sungai yang relative datar dan anak sungai dari sungai Brantas yang berada pada daerah hilir yang melewati kabupaten Jombang dan Mojokerto. Sungai Marmoyo merupakan sungai yang bermuara pada kali Surabaya Banjir yang terjadi di sungai Marmoyo mengakibatkan kerugian yang cukup besar.. Diperlukan upaya untuk mengatasi masalah tersebut. Tahapan untuk mencapai tujuan tersebut adalah pertama analisa hidrologi, yang meliputi perhitungan curah hujan rata-rata, perhitungan curah hujan rencana, uji kesesuaian distribusi frekuensi, perhitungan debit banjir, perhitungan kapasitas penampang sungai. Kedua analisa hidrolika dengan menggunakan program bantu HEC-RAS. Setelah dilakukan analisis terhadap sungai Marmoyo dengan menggunakan debit kala ulang 50 tahun direncanakan sudetan terletak pada STA-78 untuk mengurangi debit banjir. Untuk perencanaan sudetan didapatkan hasil debit yang dialirkan melalui sudetan sebesar Q = 106,926 m3/dtk dengan dimensi penampang sudetan b = 15 m, z = 1:2.
Analisa Penanggulangan Banjir Kali Lamong Kabupaten Gresik Enggar Ika Winahyu; Minarni Nur Trilita; Novie Handajani
Jurnal Rekayasa Sipil dan Lingkungan Vol 6 No 1 (2022): Jurnal Rekayasa Sipil dan Lingkungan
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jrsl.v6i1.31110

Abstract

The Lamong river is located in East Java Province, the Lamong river watershed covers a number of areas, namely Lamongan and Mojokerto Regencies. The upstream part of the Lamong River is in the Lamongan and Mojokerto Regencies, while the downstream part is located on the border of Surabaya and Gresik City, and empties into the Madura Strait. Lamong river has a length of ±103 km and a width of ±50 m with an area of +720km². During the rainy season, the Lamong river often floods. This flood is due to backwater and the channel cross-section is unable to accommodate the existing discharge. The purpose of this research is to find out the actions that will be taken to overcome the flood caused by the overflow of the Lamong river and need an alternative to overcoming the flood problem, one of which is raising the embankment. The steps to achieve these goals are hydrological analysis and hydraulics analysis. The hydrological analysis consists of calculating the average rainfall, calculating the planned rainfall, testing the suitability of the frequency distribution, calculating the flood discharge, and calculating the cross-sectional capacity of the river. Hydraulics analysis using the HEC-RAS program. The results of the analysis obtained that the Lamong river flood control used a 25-year return period, and planned flood control by adding the height of the embankment at the overflowing point of the river. Segment II Q = 167.68 m³/s with the addition of the right and left embankments as high as 2-5 meters. Segment III Q = 274.65 m³/s with the addition of the right and left embankments as high as 2-5 meters. Segment IV Q = 352.14 m/s with the addition of the right and left embankments as high as 2-3 meters. ABSTRAK Kali Lamong terletak di Provinsi Jawa timur, DAS Kali Lamong meliputi sejumlah daerah yaitu Kabupaten Lamongan dan Mojokerto. Bagian hulu Kali Lamong terletak di kabupaten Lamongan dan Mojokerto, sedangkan bagian hilir terletak di perbatasan Kota Surabaya dan Gresik, serta bermuara ke Selat Madura. Kali Lamong memiliki panjang Kali ±103 km dan lebar Kali ± 50 m dengan luas Daerah Aliran Kali (DAS) ±720km². Saat musim hujan Kali Lamong sering terjadi banjir. Banjir ini dikarenakan aliran balik (backwater) dan dimensi penampang saluran tidak mampu menampung debit yang ada. Tujuan dari penelitian ini adalah untuk mengetahui tindakan yang akan dilakukan untuk mengatasi banjir akibat luapan Kali Lamong , serta memerlukan alternatif dalam mengatasi permasalahan banjir yang tepat salah satunya meninggikan tanggul. Tahapan untuk mencapai tujuan tersebut dilakukan analisa hidrologi dan analisa hidrolika. Analisa hidrologi yang terdiri dari perhitungan curah hujan rata –rata, perhitungan curah hujan rencana, uji kesesuaian distribusi frekuensi, perhitungan debit banjir, perhitungan kapasitas penampang Kali. Analisa hidrolika menggunakan bantuan program HEC-RAS. Hasil analisa diperoleh pengendalian banjir Kali Lamong menggunakan kala ulang 25 tahun, dan direncanakan pengendalian banjir dengan penambahan tinggi tanggul pada titik Kali yang meluap. Segmen II Q = 167.68 m3/dt dengan penambahan tinggi tanggul kanan dan kiri setinggi 2-5 meter. Segmen III Q = 274.65 m3/dt dengan penambahan tinggi tanggul kanan dan kiri setinggi 2-5 meter. Segmen IV Q = 352.14 m/s dengan penambahan tinggi tanggul kanan dan kiri setinggi 2-3 meter.
Perencanaan Pengendalian Banjir Kali Kedunglarangan Kabupaten Pasuruan Aprilia Gita Permata; Novie HANDAJANI; Iwan Wahjudijanto
Jurnal Rekayasa Sipil dan Lingkungan Vol 6 No 1 (2022): Jurnal Rekayasa Sipil dan Lingkungan
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jrsl.v6i1.31114

Abstract

Bangil Subdistrict in Pasuruan Regency, East Java contains the Kedunglarangan River with a length of 39.69 km and the Kedunglarangan Watershed (DAS) covering an area of ​​324.01 km². The inability of the drainage channel which is unable to accommodate the upstream water flow causes flooding in the Kedunglarangan River. This happened due to heavy rains that inundated several areas, one of which was in Kalianyar Village. This study aims to determine the planning of flood control management in the area. The method used for flood management in this study will be carried out by analyzing the design flood discharge with a return period of 25 years and the channel capacity analysis using HEC_RAS. The analysis was used for planning the addition of the embankment height in each river segment to reduce flood discharge. The results in this study were obtained by adding the height of the embankment in segment 1 with a discharge (Q) of 254.404 m3/s, carried out by adding an addition to the height of the left embankment by 4 m and the right side of the embankment with a height of 3.5 m, Segment 2 with river water discharge 550,839 m3/s, the addition of the height of the embankment on the left and right sides is 6.5 m and 4 m, respectively and segment 3 with a river water discharge of 680,997 m3/s, is done by adding the height of the embankment on the left and right by 5m and 2.5m. ABSTRAK Kecamatan Bangil di Kabupaten Pasuruan, Jawa Timur terdapat Kali Kedunglarangan dengan panjang 39,69 km dan Daerah Aliran Sungai (DAS) Kedunglarangan seluas 324,01 km². Ketidak mampuan saluran drainase yang tidak mampu menampung aliran air hulu menyebabkan banjir di Kali Kedunglarangan. Hal tersebut terjadi dikarenakan hujan deras yang menggenangi beberapa wilayah salah satunya pada Desa Kalianyar. Pada penelitian ini bertujuan untuk mengetahui perencanaan penanganan pengendalian banjir di daerah tersebut. Adapun metode yang dilakukan untuk penanganan banjir pada penelitian ini akan dilakukan dengan analisis debit banjir rancangan dengan kala ulang 25 tahun dan analisis kapasitas saluran menggunakan HEC_RAS . Analisis dilakukan pada debit rancangan digunakan untuk perencanaan penambahan tinggi tanggul pada setiap segmen sungai untuk mengurangi debit banjir. Hasil pada penelitian ini diperoleh dengan penambahan tinggi tanggul pada segmen 1 dengan debit (Q) sebesar 254,404 m3/dt, dilakukan dengan memberikan penambahan pada tinggi tanggul sebelah kiri sebesar 4 m dan sisi tanggul sebelah kanan dengan tinggi 3,5 m, Segmen 2 dengan debit air sungai 550,839 m3/dt, penambahan tinggi tanggul sisi kiri dan kanan masing-masing 6,5 m dan 4 m, masing-masing dan segmen 3 dengan debit air sungai 680,997 m3/dt, dilakukan dengan penambahan tinggi tanggul pada sisi kiri dan kanan sebesar 5m dan 2,5m.
Acidity (pH) and Dissolved Oxygen Levels as Indicators of Water Quality Around the Tuban Coastal Area Siti Zainab; Novie Handajani; Hendrata Wibisana
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2719

Abstract

The coast of Tuban is a fairly dynamic area, where the lives of fishermen depend on fishing efforts. Ecosystem changes that occur in the coastal area of Tuban greatly affect the fishing effort, where one of the parameters that can be observed is the distribution of oxygen content from water bodies on the coast. The purpose of this study was to analyze and map the distribution of acidity content (pH) and its correlation with dissolved oxygen in the coastal area of Tuban. This is based on the fact that research on the distribution of dissolved oxygen has been carried out by many experts, as well as the acidity value of seawater, there have also been those who have done it, only here that needs to be emphasized, that there have not been many dissolved oxygen studies involving other parameters such as acidity pH.
Co-Authors Aprilia Gita Permata Brian Okta Vyanto Eky Mahendra Brian Okta Vyanto Eky Mahendra Devi, Yanna Lutfiana Enggar Ika Winahyu Handika, Sadmay Gigid Hendrata Wibisana Iwan Wahjudijanto Iwan Wahjudijanto Iwan Wahjudijanto Marta Kusuma Ningrum Ningrum, Marta Kusuma Siti Zainab