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All Journal Acta Aquatica: Aquatic Sciences Journal Nekton HIRONO : Jurnal Pengabdian Masyarakat Journal of Coastal and Deep Sea Balobe: Jurnal Pengabdian Masyarakat
Noya, Yunita A.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Social Sciences Veterinary Other

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Debit Sedimen Kohesif di Teluk Baguala Pulau Ambon Noya, Radi C.; Noya, Yunita A.
Journal of Coastal and Deep Sea Vol 2 No 2 (2024): Journal of Coastal and Deep Sea
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jcds.v2i2.16964

Abstract

Teluk Baguala, yang terletak di timur Pulau Ambon, memiliki potensi ekosistem pesisir yang baik, termasuk mangrove, padang lamun, makroalga, dan perikanan bernilai ekonomis. Namun, aktivitas pemukiman dan pengembangan wilayah pesisir menimbulkan ancaman sedimentasi yang memengaruhi ekosistem. Penelitian ini bertujuan mendeskripsikan kecepatan arus pasang surut, konsentrasi, luas penampang muara, dan debit sedimen kohesif di enam muara sungai utama. Metode penelitian mencakup pengambilan data secara in situ menggunakan peralatan seperti GPS, botol Niskin, current meter, dan meter roll. Hasil menunjukkan kecepatan arus pasang surut rata-rata 0,1804 m.s-1 dengan kecepatan tertinggi di ST4 (0,3338 m.s-1) dan terendah di ST2 (0,0871 m.s-1). Konsentrasi sedimen kohesif rata-rata adalah 0,4302 kg.m-3, dengan nilai tertinggi di ST5 (0,4788 kg.m-3) dan terendah di ST6 (0,3371 kg.m-3). Debit sedimen kohesif rata-rata sebesar 0,79801 kg.s-1, dengan nilai maksimum di ST2 (1,5409 kg.s-1) dan minimum di ST6 (0,1189 kg.s-1). Sedimen kohesif, yang berasal dari runoff dan penggerusan pantai, mengancam ekosistem dengan menciptakan kekeruhan dan mengikat bahan pencemar. Hasil penelitian ini memberikan kontribusi ilmiah penting untuk strategi pengelolaan sedimentasi di Teluk Baguala, guna melindungi ekosistem dan mendukung pengembangan wilayah pesisir secara berkelanjutan.
PELATIHAN PEMBUATAN PETA DASAR DESA POKA MENGGUNAKAN SOFTWARE ARCGIS Ratuluhain, Eva S.; Noya, Yunita A.; Kalay, Degen E.; Rijoly, Fredrik; Rumlus, Andrego J.
Balobe: Jurnal Pengabdian Masyarakat Vol 4 No 1 (2025): Balobe: Jurnal Pengabdian Masyarakat
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/balobe.4.1.27-32

Abstract

Base maps are one of the important elements in presenting detailed geospatial information about the physical conditions of an area, including complementary features such as roads, rivers, contours, administrative boundaries and land use, which are very much needed in the fields of spatial planning, spatial development, infrastructure development, disaster mitigation, to natural resource management. The purpose of this training is for participants to understand the basic concepts of mapping, master geospatial data collection and processing techniques, and be able to produce accurate and informative base maps. This training was held on Saturday, May 3, 2023 at the Nutrihub Kate-Kate Building, Ambon City, involving 12 participants consisting of young men and women from Poka Village. The training took place using a combination of methods, namely Theory, Discussion, and Direct Practice of making base maps using the ArcGIS application. The results of the training showed that the participants could understand the basics of map making and were able to make base maps using the ArcGIS application.
Rekonstruksi Tsunami Mentawai dengan Menggunakan COMCOT v1.7 Ratuluhain, Eva Susan; Noya, Yunita A.; Pradjoko, Eko; Rahman, Rahman; Hukubun, Ronald D.
Nekton Vol 2 No 2 (2022): October
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (793.853 KB) | DOI: 10.47767/nekton.v2i2.403

Abstract

Many studies on the Mentawai tsunami have been carried out. Still, not many have reviewed the validation of run-up height compared to the results of field studies in the same year as the Mentawai tsunami on October 25, 2010. The survey of the Mentawai tsunami reconstruction using COMCOT v1.7 aims to validate The tsunami run-up height of the model output was compared with the results of the field study by the GITST Team in 2010. Validation of the model was carried out using the Aida parameter, by calculating the ratio of the comparison between the model output and the field study results. The study location of the model is divided into 3 layers, namely layer01 covering Sipora Island, North Pagai Island, and South Pagai Island, layer02 covering North Pagai Island and South Pagai Island, and layer03 with the focus of observation on Sibigau Island, with bathymetric resolution used for each layer. 464 m, 232 m, and 77 m so that the propagation at the observation site can be seen clearly. The height of the modeled tsunami ranged from 2.5 – 11.2 meters, with a maximum run-up height observed on Sibigau Island of 11.2 meters, and the time range for the tsunami arriving on land was 5 – 15 minutes. The comparison ratio between the model results and the field study is K = 0.9 and k (standard deviation) = 0.16. Based on the comparison ratio, the model output is close to the actual result.
Reclamation and sedimentation impacts around the Wairuhu River estuary, Poka-Galala threshold Noya, Yunita A.; Manuputty, Gratia
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 10: No. 2 (August, 2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v10i2.6880

Abstract

Wairuhu River is disembogued on the sill of Poka-Galala, Ambon Bay. The estuary is affected by the coastal reclamation which led to the fester sedimentation. It triggers the problem of altering the shoreline and the dynamics of water movement, as well as the surrounding ecosystem. The modeling approach was applied to reconstruct the alterations around the estuary. The study aimed to estimate the changes on the shoreline, current patterns, and sediment transport patterns (suspended sediment), and to describe marine resources around the estuary of Wairuhu. MIKE 3 FM was utilized to reconstruct the pattern of flow and sediment transport changes, and coordinates plottings from satellite data were used to measure the coastline. The model was validated by using the data of tide and surface flow. The results showed the alteration pattern of the shoreline around the Wairuhu estuary occurred as a result of coastal reclamation. The flow validation (mooring and model) using RMSE was 0.38 which meant there was no difference between the model and mooring. By the model, the flow pattern that passed through the APG was following the tidal pattern. The changes in the tidal platform also occurred on the sediment transport pattern that formed the total distribution pattern of SSC (suspended sediment concentration). Several classes of macroflora and macrofauna were uncovered, such as Malacostraca, Echinoidea, Bivalvia, Asteroidea, Ophiuroidea, and Gastropoda.Keywords: Modeling; Poka-Galala sill; Sedimentation; Wairuhu River
PELATIHAN PEMBUATAN PETA KONTUR TIGA DIMENSI DENGAN MENGGUNAKAN PROGRAM SURFER Noya, Yunita A.; Loupatty, Sven R.; Manuputty, Gratia D.; Ratuluhain, Eva Susan
HIRONO : Jurnal Pengabdian Masyarakat Vol 3 No 2 (2023): 2023 Oktober
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Hein Namotemo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55984/hirono.v3i2.141

Abstract

Knowledge and skills about making three-dimensional contour maps are essential and promising to be mastered by a Marine Science graduate as a provision of knowledge that can be applied to work life, which is not only to fisheries and maritime affairs but also to other fields that require geographic information systems, such as agriculture. One of the most widely applied programs for making three-dimensional contour maps is Surfer. However, sometimes the knowledge and skills acquired in college are not profound, hence, training is carried out using the program to improve the skills of alumni. The activity was carried out for 2 days. The training begins with identifying participants' basic knowledge of the Surfer program. Based on the initial identification, it was found that the participants' basic knowledge varied widely and the average was still below 50%. Next is an introduction to the Surfer program, including the available menus and the functions of these menus. During the introduction of theory, participants were trained in their skills simultaneously using a laptop display, where this method was effective for participants because it was directly practised. After that, the participants were tested again for their abilities related to mastery of knowledge and skills. The results of the training showed an increase in the knowledge and skills of the participants who were capable of making 3D contour maps using the Surfer program.
Co-Authors Eko Pradjoko Gratia Dolores Manuputty Kalay, Degen E. Loupatty, Sven R. Manuputty, Gratia Noya, Radi C. Rahman Rahman Ratuluhain, Eva S. Ratuluhain, Eva Susan Rijoly, Fredrik Ronald Darlly Hukubun Rumlus, Andrego J.