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All Journal Journal of Education, Humaniora and Social Sciences (JEHSS) Jurnal Hidrografi Indonesia
Cahyani, Ayu
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Earth & Planetary Sciences Health Professions Public Health Social Sciences

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Pemodelan Arus Pasang Surut dan Transpor Sedimen 2D Menggunakan Metode di Perairan Kalimantan Barat pada Bulan Juli 2024: 2D Tidal Current and Mud Transport Modeling using Numerical Method in The Waters of West Kalimantan in July 2024 Cahyani, Ayu; W, Nadia Zahrina; Arrochim, Arrochim; Olivia, Tasya
Jurnal Hidrografi Indonesia Vol 6 No 2 (2024): Jurnal Hidrografi Indonesia
Publisher : Pusat Hidro-Oseanografi TNI Angkatan Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62703/jhi.v6i2.117

Abstract

Perairan Kalimantan Barat bagian barat daya memiliki karakteristik fisik yang dipengaruhi oleh interaksi antara aliran sungai, pasang surut, dan kondisi laut terbuka yang terhubung dengan Selat Karimata. Banyaknya sungai akan memengaruhi dinamika sedimen di perairan ini. Penelitian ini bertujuan untuk memahami dinamika arus pasang surut dan transpor sedimen. Metode yang digunakan adalah pengumpulan data dan informasi mengenai karakteristik arus dan gelombang melalui studi literatur dan pemodelan numerik 2 dimensi. Data batimetri dan garis pantai diambil dari Peta Laut Indonesia (PLI) No. 486, data pasang surut, data angin dan data gelombang diambil melalui ECMWF, serta data lapangan untuk validasi diamnil dari data prediksi pasang surut BIG. Hasil analisis pasang surut di Perairan Kalimantan Barat pada bulan Juli 2024 menunjukkan surut terendah pada 21 Juli 2024 pukul 01.00 WIB dengan elevasi muka air laut -0,75 m, kecepatan arus 0,20-0,55 m/s ke arah barat laut dengan total konsentrasi sedimen tersuspensi sebesar 0,015-0,060 kg/�2 di muara; pasang tertinggi pada 21 Juli 2024 pukul 15.00 WIB dengan elevasi muka air laut 0,697 m, kecepatan arus 0,05-0,45 m/s ke arah tenggara dengan total konsentrasi sedimen tersuspensi sebesar 0,013-0,032 kg/�2  di muara. Hasil arus pasang surut yang terverifikasi cukup akurat dengan nilai RMSE model pasang surut dengan data BIG sebesar 28,22% sehingga hasil model valid untuk digunakan.
Analisis Sistem Administrasi di Badan Usaha Milik Desa Wibawa Mukti Desa Sekarwangi Kabupaten Sumedang Cahyani, Ayu; Supriatna, Adi; Somantri, Muhammad Siddiq; Yuningsih, Teti; Sudrajat, Arip Rahman
Journal of Education, Humaniora and Social Sciences (JEHSS) Vol 2, No 2 (2019): Journal of Education, Humaniora and Social Sciences (JEHSS) Desember
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (918.185 KB) | DOI: 10.34007/jehss.v2i2.83

Abstract

The purpose of writing this research is to analyze the administration system which is carried out in the Village-Owned Enterprises in Sekarwangi Village. The method used in this research is descriptive analysis by first observing the relevant research object with a focus on observing the administration system which is carried out by the board administrator Village Owned Business. The location of the research is Sekarwangi Village, Buahdua District, Sumedang Regency. In conducting observations, there were three interviews with resource persons who were employees of the Village Owned Enterprises. Based on observations and interviews, the results showed that the administration system activities in the Village-Owned Enterprises were still low. This is caused by several factors including the lack of labor, lack of facilities and office infrastructure, low employee skills and minimal capital resources. This study concludes that in the management of Village-Owned Enterprises in Sekarwangi Village there are administrative activities that are not optimal and have not run well due to funding factors in the administrative system that have not been fulfilled either in personnel or in capital.
Co-Authors Adi Supriatna Arip Rahman Sudrajat Arrochim, Arrochim olivia, tasya Somantri, Muhammad Siddiq W, Nadia Zahrina Yuningsih, Teti