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Analysis of Coastal Abrasion Rate of Laha Village Ambon City using Satellite Data Samallo, Zulfikri; Warniyati, Warniyati; Sihombing, Tri Octaviani; Tutkey, Monica R
Journal of Applied Sciences, Management and Engineering Technology Vol 5, No 1 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2024.v5i1.6002

Abstract

The coastline is the boundary between the sea and land. Line changes are caused by abrasion and accretion. Abrasion and accretion occur throughout the coast of Laha so that the coastline undergoes quite drastic changes. This study aims to determine how much the average rate of abrasion and coastal accretion per year and how much the average area of abrasion and accretion for 10 years of recording data on the Laha coast. This study uses the remote sensing method as a rapid study to detect the rate of abrasion and accretion on Laha beach using Landsat 8 images in 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 as primary data Calculation of shoreline changes using DSAS (digital shoreline analysis system) using the NSM (net shoreline movement) statistical method. The results of the 10-year coastal abrasion rate study occurred thoroughly on the coast of Laha beach. The highest abrasion occurred in 2018-2019 with an average value of NSM -15 cm/year while the highest accretion occurred in 2019-2020 with an average value of NSM +19.97 cm/year. Abrasion area for 10 years with an average value of NSM of -89.29 m2 / year while accretion for 10 years with an average value of NSM of +70.70 m2/ year. With the rate of abrasion that occurs, it is necessary to build coastal buildings evenly so that abrasion can be minimized.
Analisa Kapasitas Saluran Drainase Ruas Jl. Rijali Kota Ambon dan Alternatif Penanganannya Toisuta, Juan Gerald; ., Warniyati; Sihombing, Tri Octaviani; Tutkey, Monica R.
JURNAL SIMETRIK Vol. 14 No. 1 (2024)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v14i1.2387

Abstract

Permasalahan banjir berawal dari peningkatan jumlah penduduk, perubahan iklim dan perubahan tata guna lahan. Peningkatan penduduk yang tidak diimbangi dengan penyediaan prasarana dan sarana perkotaan yang memadai mengakibatkan pemanfaatan lahan yang tidak tertib, itu yang menyebabkan permasalahan drainase menjadi sangat kompleks.Tata guna lahan yang tidak memperhatikan kegunaan wilayah bisa mengakibatkan permasalahan banjir. Hal ini juga terjadi di daerah Batu Merah sampai Puncak Bogor, Kelurahan Amantelu, Kecamatan Sirimau, Kota Ambon. Penelitian ini dilakukan untuk mengetahui kapasitas saluran drainase eksisting dan merencanakan desain alternatif penanganan luapan. Debit rencana saluran drainase dihitung dengan metode Gumbel berdasarkan data curah hujan di Kota Ambon dari tahun 2011 sampai 2021. Berdasarkan hasil analisa kapasitas saluran untuk kala ulang 2, 5 dan 10 tahun berturut-turut untuk Jl. Rijali K1a 0,050 m³/s, 0,085 m³/s, 0,109, K2a 0,034 m³/s, 0,058 m³/s, 0,074 m³/s, dan K3a 0,005 m³/s, 0,009 m³/s, 0,011 m³/s dan Jl. Pitu Ina K1b 0,010 m³/s, 0,017 m³/s, 0,022 m³/s, K2b 0,047 m³/s, 0,079 m³/s, 0,101 m³/s, K3b 0,181 m³/s, 0,308 m³/s, 0,392 m³/s saluran drainase Jl. Rijali hasilnya memenuhi sedangkan untuk Jl. Pitu Ina tidak memenuhi. Dengan demikian dimensi untuk ruas Jl. Pitu ina diperbesar berturut-turut menjadi lebar 0,80 m; 1,05 m; 1,30 m dengan kedalaman 0,90 m; 1,20 m; 1,80 m.
EVALUASI KINERJA JARINGAN DAERAH IRIGASI WAY METEN BERBASIS e-PAKSI Haumahu, Rian Michael; Warniyati, Warniyati; Sihombing, Tri Octaviani; Tutkey, Monica R.
Jurnal Teknik Sipil : Rancang Bangun Vol. 11 No. 01 (2025): April 2025
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dalam sistem irigasi, pengawasan dan pengendalian terhadap operasional jaringan irigasi secara teratur merupakan hal yang sangat penting. Untuk mewujudkan hal tersebut, dibentuklah sistem operasi dan pemeliharaan prasarana sumber daya air guna mencegah terjadinya kerusakan maupun penurunan fungsi. Pengelolaan ini dilakukan dengan mempertimbangkan prioritas penanganan terhadap kerusakan yang terjadi pada sistem irigasi. Berdasarkan prioritas tersebut, dilakukan evaluasi terhadap kinerja jaringan irigasi, mengingat sistem irigasi merupakan suatu kesatuan yang saling terintegrasi. Salah satu alat bantu yang digunakan dalam proses ini adalah e-PAKSI (Evaluasi Performa dan Kinerja Sistem Irigasi), yang berfungsi untuk mengolah data irigasi secara masif dan menghasilkan skala prioritas penanganan kerusakan berdasarkan indeks penilaian kinerja irigasi. Berdasarkan hasil evaluasi dengan metode ini, ditemukan bahwa kinerja irigasi terburuk berada pada Daerah Irigasi (D.I) Way Meten, yang mencakup empat saluran: saluran primer 1d Way Meten, saluran sekunder 1a Way Aha, saluran primer 1c Way Meten, dan saluran sekunder 1f Mako.
Penilaian Kerusakan Pantai di Kecamatan Leihitu Barat dan Prioritas Penanganannya Sipiel, Febrian Alexander; Warniyati, Warniyati; Sihombing, Tri Octaviani; Tutkey, Monica R
ALE Proceeding Vol 7 (2025): Archipelago Engineering
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.7.2025.26-33

Abstract

Penilaian tingkat kerusakan bangunan pelindung pantai merupakan tahap awal dari bagian dari perencanaan Pengeloalan daerah pantai, dalam rangka pengaturan, pencegahan, perlindungan dan rehabilitasi kerusakan lahan, infrastruktur dan prasarana umum di daerah pantai. Penilaian tingkat kerusakan pantai dibutuhkan untuk menentukan prioritas kerusakan pantai yang memerlukan penanganan segera. Dalam penelitian ini dilakukan penilaian terhadap tingkat kerusakan daerah pantai dan penentuan prioritas penanganannya pada Wilayah Pengamanan Pantai di Kecamatan Leihitu Barat. Daerah pantai di Kecamatan Leihitu Barat terdiri dari 5 negeri/desa dan dibagi menjadi 41 segmen. Setiap segmen bangunan pelindung pantainya pada setiap negeri/desa dipisahkan oleh muara sungai atau ujung dari bangunan pelindung pantai tersebut. Penelitian ini dilakuak dengan pengumpulan data kerusakan bangunan pantai, analisis data, pembobotan tingkat kerusakan daerah pantai dan tingkat kepentingan pantai, serta penentuan prioritas penanganannya. Parameter-parameter kerusakan pantai yang dianalisis meliputi kerusakan/kegagalan bangunan pantai berdasarkan Pedoman Penilaian Kerusakan Pantai dan Prioritas Penangannanya dengan kode EA-2. Berdasarkan hasil penilaian kerusakan daerah pantai, penilaian tingkat kepentingan dan penentuan prioritas penanganan, didapatkan bahwa kerusakan/kegagalan bangunan pantai yang sangat amat diutamakan penanganannya adalah, Negeri Hatu pada segmen V, VI dan segmen VII, Negeri Allang pada segmen IV, dan Negeri Larike yaitu pada segmen III dan VII. Penanganan yang disarankan adalah rehabilitasi dan pemeliharaan bangunan pelindung pantai.
TINJAUAN KEBUTUHAN DAN KETERSEDIAAN AIR BERSIH NEGERI SEILALE KECAMATAN NUSANIWE KOTA AMBON Tehupuring, Venesya Damaris; ., Warniyati; Tutkey, Monica Rina; Sihombing, Tri Octaviani
ALE Proceeding Vol 7 (2025): Archipelago Engineering
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.7.2025.131-139

Abstract

Pemenuhan kebutuhan air bersih sangat bergantung pada ketersediaan sumber air bersih yang ada. Negeri Seilale memiliki tiga sumber air bersih yaitu mata air Pancuran Tujuh, mata air Weslaur dan sumur bor. Sumber air tersebut hanya dimanfaatkan untuk memenuhi kebutuhan lima RT dari sepuluh RT yang ada. Penelitian ini bertujuan untuk meninjau kebutuhan dan ketersedian air bersih di Negeri Seilale untuk seluruh warga sampai tahun 2032. Penelitian ini menggunakan metode aritmatik dan geometrik untuk menghitung laju pertumbuhan penduduk. Pengukuran debit pada mata air dilakukan dengan menggunakan metode tampung. Analisis kebutuhan air bersih dilakukan berdasarkan Kriteria Perencanaan Dirjen Cipta Karya Dinas Pekerjaan Umum tahun 2000 untuk kategori desa. Berdasarkan hasil penelitian, jumlah ketersediaan air dari ketiga sumber air adalah 3,33 liter/detik, sedangkan kebutuhan air bersih di Negeri Seilale pada tahun 2032 adalah 1,81 liter/detik. Hal ini menunjukan bahwa jumlah ketersediaan air pada Negeri Seilale mampu untuk memenuhi kebutuhan air bersih sampai tahun 2032. Dengan demikian pemerintah setempat perlu mengupayakan untuk merancang jaringan pipa distribusi ke rumah-rumah penduduk supaya seluruh warga mendapatkan pelayanan air bersih.
Penilaian Kerusakan Pantai di Kecamatan Teluk Ambon dan Prioritas Penanganannya Sihombing, Tri Octaviani; Tutkey, Monica R.; Warniyati, Warniyati
Jurnal Teknik Sipil Vol 21 No 2 (2025): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v21i2.10311

Abstract

Assessment of Beach Damage in Teluk Ambon Sub-district and Prioritisation of Handling. In the management of coastal areas, the assessment of the level of damage to coastal protective buildings is an initial planning step in controlling, preventing, protecting and restoring damage to land, infrastructure and public infrastructure in coastal areas. Assessment or evaluation of the level of coastal damage is needed to find locations of coastal damage that require immediate action. This research was conducted to assess the level of coastal damage and prioritize the handling of coastal protection buildings along the Teluk Ambon sub-district which consists of 8 districts / villages which are then divided into several segments. Each segment was separated by the estuary or edge of the coastal protection structures under review. This study starts by collecting data on damage to coastal structures, analyzing it, then weighing the level of damage and determining the priority of handling. The assessment was conducted in reference to the Circular Letter of the Minister of Public Works No. 08/SE/M/2010 on Guidelines for Beach Damage Assessment and Prioritization of Handling. The coastal damage parameters analyzed include damage/failure of coastal buildings with EA-2 code. The results showed that there were no beach buildings that suffered very heavy (ASB), very heavy (AB) and heavy (B) damage. Coastal buildings that experienced moderate damage (S) with less priority (D) were located in segment 4b of Laha Village. Coastal structures that suffered minor damage with no priority are in segments 1 to 4 of Hunuth Village, segments 1 to 5 of Poka Village, segments 1 to 3 of Rumah Tiga Village, Segments 1 and 2 of Wayame Village, segments 1 to 8 of Hative Besar Village, segments 1 to 4 of Tawiri Village, and segments 1 to 4a of Laha Village.
RE-DESAIN SISTEM JARINGAN PIPA AIR BERSIH DUSUN KATAPANG DESA LOKKI KECAMATAN HUAMUAL KABUPATEN SERAM BAGIAN BARAT Samallo, Elsina Juliana; Warniyati, Warniyati; Tutkey, Monica Rina; Sihombing, Tri Octaviani
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 30 No. 1 (2025): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v30i1.6048

Abstract

The availability of clean water is a fundamental need that is crucial for the survival of all living beings, including humans. Katapang Hamlet, located in Lokki Village, Huamual District, West Seram Regency, faces serious issues related to the distribution of clean water due to frequent pipeline system failures, particularly caused by flooding. The pipeline system in this area has been built three times, but it continues to experience damage, affecting the clean water distribution to the community. The current system is highly vulnerable to natural disasters such as floods, with pipelines located in high-risk areas like riverbanks and steep cliffs, irregular pipeline routes, and inadequate system components. During floods, the community often goes without a clean water supply for days. To address this problem, a redesign of the clean water distribution network is required. This study aims to design an optimal clean water distribution system using Epanet 2.2 software. Through this application, the analysis and simulation of the distribution pipeline network are carried out to ensure that the system continues to function well, even during heavy rain or floods, so that the community can consistently receive a clean water supply. The results of this study are expected to provide a long-term solution to the clean water distribution problems in Katapang Hamlet.
Analisis Profil Muka Air Banjir Sungai Way Sikula Kota Ambon Menggunakan HEC – RAS Rolobessy, Vivi Elfira; Warniyati, Warniyati; Sihombing, Tri Octaviani; Tutkey, Monica Rina
Jurnal Teknik Sipil Vol 20 No 1 (2024): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v20i1.6548

Abstract

The Way Sikula River is one of the rivers in Ambon City with a length of 22.55 km. The Way Sikula River is in the Way Sikula and Air Manis watersheds. In July 2022, there was a flood downstream of the river which resulted in paralyzed road access to Ambon City and West Leihitu District. In this regard, it is necessary to analyze the profile of the flood water level in the river which is expected to become a flood control plan in the future. Calculation of flood discharge in the Way Sikula River for return periods of 2, 5, 10, 25, and 50 years used the rational method using rainfall data from the BMKG Pattimura Ambon station and Gunung Nona Ambon Post Station in 2012 - 2021. The results of the flood discharge calculation for the 2012-2021 period. 2nd, 5th, 10th, 25th and 50th year respectively are 99,51 m3/s, 130,47 m3/s, 150,36 m3/s, 168,87 m3/s and 192,74 m3/s. Floodwater profile analysis using HEC-RAS ver. 5.0.7. From the simulation results it is known that the Way Sikula River began to overflow at the Q2 year flood discharge in all simulated cross sections with a flood overflow height at a 50 year flood discharge reaching 1,86 meters.
Pemanfaatan Turbin Kaplan dengan Variasi Debit Air Sungai Ciparay di Kampung Stamplat Girang Desa Indragiri Sihombing, Tri Octaviani; Pattipawaej, Olga Catherina
Jurnal Teknik Sipil Vol 20 No 2 (2024): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v20i2.7282

Abstract

Stamplat Girang Village has quite large potential for developing micro-hydro power plants using Kaplan turbines, considering the hilly topography and the presence of the Ciparay river. The Ciparay River has quite a large water flow throughout the year. The main objective of this research is the use of the Kaplan Turbine with variations in Ciparay river water discharge. Measurements of water flow velocity and cross-section of the Ciparay river were carried out directly in low rainfall conditions and in high rainfall conditions. The average water flow of the Ciparay river is lowest at low rainfall at 0.22 m3/s and highest at high rainfall at 1.46 m3/s. With an energy height of 2 m, the effective electrical power produced is 6,592 watts in low rainfall conditions and the highest produced is 18,098 watts in high rainfall conditions. The effective electrical power obtained can be directly beneficial to various aspects of the regional government's efforts to assist the development of Stamplat Girang Village in empowerment and environmental development as well as supporting the Indonesian government's efforts to encourage the development of micro hydro energy in achieving sustainable development goals.