Pelacakan Sampah Laut dari Muara Sungai Menggunakan Pemodelan Hidrodinamika di Teluk Lamong

Muzhofar, Hafizh Ahmad (2025) Pelacakan Sampah Laut dari Muara Sungai Menggunakan Pemodelan Hidrodinamika di Teluk Lamong. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Teluk Lamong merupakan wilayah yang digunakan untuk berbagai macam aktivitas seperti industri, perdagangan dan pergudangan. Berbagai aktivitas yang dilakukan menyebabkan perairan Teluk Lamong menjadi salah satu perairan yang tercemar berat oleh limbah sampah. Keberadaan sampah laut menjadi salah satu bentuk pencemaran lingkungan laut yang semakin mengkhawatirkan. Karena sampah laut dapat memberikan pengaruh yang merugikan bagi manusia dan lingkungan air, khususnya habitat dan biota laut yang hidup di perairan Teluk Lamong. Selain dihasilkan oleh aktivitas yang ada di laut, sebagian besar sampah laut juga berasal dari sampah yang terbawa oleh sungai. Sampah yang berada di sungai Surabaya berpotensi berakhir di Teluk Lamong. Dalam Teluk Lamong sendiri terdapat tujuh sungai yang bermuara ke perairan Teluk Lamong. Sampah laut yang sampai ke Teluk Lamong kemudian akan tersebar akibat kondisi hidrodinamika di Teluk Lamong. Dengan demikian, penelitian ini bertujuan untuk memprediksi distribusi dan arah pergerakan sampah laut dari muara yang ada di Teluk Lamong serta keterkaitannya terhadap pola arus yang ada di Teluk Lamong. Metode yang digunakan untuk melakukan pemodelan hidrodinamika dan model pelacakan partikel adalah dengan menggunakan metode numerik perangkat lunak Delft3D. Validasi pemodelan dilakukan untuk mengukur keakuratan kualitas data antara model dengan data observasi menggunakan perhitungan statistik RMSE, dan Korelasi Pearson untuk mencari hubungan linier antara model dengan pengukuran. Hasil studi menunjukkan Pergerakan dan distribusi sampah plastik PP sangat terkait dengan pola arus dan pasang surut di kedua musim. sampah PP cenderung terkonsentrasi di dekat muara sungai dan di dalam Teluk Lamong, baik saat spring tide maupun neap tide. sampah PP pada musim barat cenderung terkonsentrasi di sisi tenggara dari teluk, sementara sampah PP pada musim timur lebih terkonsentrasi di sisi barat laut dari teluk. Konsentrasi sampah PP terapung lebih tinggi di musim barat (tertinggi sekitar 0,04 kg/m2) daripada musim timur (tertinggi sekitar 0,02 kg/m2).
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Lamong Bay is a region utilized for various activities such as industry, trade, and warehousing. These activities have led to Lamong Bay becoming one of the most polluted waters due to waste and debris. Marine debris is one form of marine environmental pollution that is becoming increasingly concerning, as it can have detrimental effects on humans and aquatic environments, particularly the habitats and marine life in Lamong Bay. Apart from being generated by activities at sea, the majority of marine debris also comes from waste carried by rivers. Waste from the Surabaya river has the potential to end up in Lamong Bay. Within Lamong Bay, there are seven rivers that flow into its waters. Marine debris that reaches Lamong Bay will then disperse due to the hydrodynamic conditions in the area. Therefore, this study aims to predict the distribution and movement of marine debris from the river mouths in Lamong Bay and its relationship with the current patterns in the area. The methods used for hydrodynamic modeling and particle tracking modeling involve numerical modeling using Delft3D software. Modeling validation was conducted to measure the accuracy of data quality between the model and observation data using RMSE statistical calculations, and Pearson Correlation to find a linear relationship between the model and measurements. The results of the study showed that the movement and distribution of PP plastic waste were closely related to current and tidal patterns in both seasons. PP waste tends to be concentrated near the river mouth and within Lamong Bay, both during spring tide and neap tide. PP waste in the west season tends to be concentrated on the southeast side of the bay, while PP waste in the east season is more concentrated on the northwest side of the bay. The concentration of floating PP waste is higher in the west season (the highest is around 0.04 kg/m2) than in the east season (the highest is around 0.02 kg/m2).

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pelacakan Partikel, Pola Arus, Pemodelan Hidrodinamika, Sampah Laut, Polusi Laut, Particle Tracking, Current Patterns, Hydrodynamic Modeling, Marine Debris, Marine Pollution
Subjects:	G Geography. Anthropology. Recreation > GC Oceanography > GC101.2 Seawater--Analysis G Geography. Anthropology. Recreation > GC Oceanography > GC89 Sea Level Q Science > QA Mathematics > QA911 Fluid dynamics. Hydrodynamics T Technology > TC Hydraulic engineering. Ocean engineering > TC424 Water levels
Divisions:	Faculty of Civil Engineering and Planning > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User:	Hafizh Ahmad Muzhofar
Date Deposited:	23 Jul 2025 02:46
Last Modified:	23 Jul 2025 02:46
URI:	http://repository.its.ac.id/id/eprint/120697

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