Analisis Koefisien Aliran Menggunakan Metode Cook di DAS Klagison Kota Sorong

Irwanto Marzuki, Anif Farida, Achmad Rusdi

Abstract


The Klagison River Watershed has an area of 1.997,6 ha and is experiencing rapid development in the physical field. The problem that often occurs in the Klagison watershed is that when there is heavy rain, several places close to the river will experience flooding, which is caused by several factors, one of which is the runoff coefficient. The aim of this study was to analyze the runoff coefficient of Klagison watershed. The method used to analyze the runoff coefficient is Cook's method, through the analysis of Geographic Information Systems (GIS) on several maps, such as maps of slope, vegetation cover, flow density, and soil infiltration. The results showed that the distribution of runoff coefficients that occurred in the Klagison watershed was dominated by the high class of 69,919% with an area of 13,967 km², the normal class of 21,500% with an area of 13,967 km², and the extreme class of 8,580% with an area of 1,714 km². Overall, the Klagison watershed is included in the high category with a runoff coefficient value of 62,603 %. This means that from 100% of the rain that falls, 62,603% will flow and 37,397% will infiltrate into the ground.


Keywords


watershed, runoff coefficient, Cook’s, GIS

Full Text:

PDF

References


Arief, S. M., Siburian, R. H., & Wahyudi, W. (2019). Tingkat Kerentanan Banjir Kota Sorong Papua Barat. Median: Jurnal Ilmu Ilmu Eksakta, 11(2), 23–27. https://doi.org/10.33506/md.v11i2.456.

Farida, A., & Aryuni, V. T. (2020). Analisis Limpasan Permukaan Di Sekitar Kampus Universitas Muhammadiyah Sorong Kota Sorong. Jurnal Sains & Teknologi Lingkungan, 12(2), 146-161. https://doi.org/10.20885/jstl.vol12.iss2.art6.

Farida, A., & Dwangga, M. (2022). Potensi Banjir Bandang Menggunakan Analisis Morfometri di Daerah Aliran Sungai Klagison Kota Sorong. ECOTROPHIC: Jurnal Ilmu Lingkungan (Journal of Environmental Science), 16(1), 71.

Farida, A., & Rosalina, F. (2022). Tingkat Bahaya Longsor Di DAS Klagison Kota Sorong Menggunakan Sistem Informasi Geografis. EcoNews, 5(1), 1-6.

Fitriyani, N. P. V. (2022). Analisis Debit Air di Daerah Aliran Sungai (DAS). Jurnal Ilmu Teknik, 2(2).

Indirham, A. (2011). Aplikasi Sistem Informasi Geografis (Sig) Dalam Penentuan Koefisien Limpasan (Kota Gorontalo) (Doctoral Dissertation, Universitas Hasanuddin).

Indrapraja, L., Noerhayati, E., & Rachmawati, A. (2020). Kajian Karakteritsitk Fisik & Hidrologi Daerah Aliran Sungai Konto Hulu Kecamatan Pujon, Kabupaten Malang. Jurnal Rekayasa Sipil, 8(4), 252-269. https://jim.unisma.ac.id/index.php/ft/article/view/5731.

Indriatmoko, R. H., & Wibowo, V. E. (2007). Aplikasi sistem informasi geografi untuk penghitungan koefisien aliran Daerah Aliran Sungai (DAS) Ciliwung. Jurnal Air Indonesia, 3(2).

Irawan, T., & Yuwono, S. B. (2016). Infiltrasi Pada Berbagai Tegakan Hutan Di Arboretum Universitas Lampung (Infiltration Onvarious Forest Stands In The Arboretum University Of Lampung). Jurnal Sylva Lestari ISSN, 4(3), 21-34.

Kementerian Kehutanan. (2013). Peraturan Direktur Jenderal Bina Pengelolaan Daerah Aliran Sungai dan Perhutanan Sosial, Nomor: P. 3/V-Set/2013 Tentang Pedoman Identifikasi Karakteristik Daerah Aliran Sungai. Sekretariat Kementerian Kehutanan. Jakarta.

Libertyca, A. N. (2015). Identifikasi Koefisien Limpasan Permukaan di Sub DAS Suco Kecamatan Mumbulsari Kabupaten Jember menurut Metode Cook.

Maimunah, M., Nurlina, N., Ridwan, I., & Tsabita, G. F. I. (2020). Analisis Karakteristik Morfometri DAS Maluka Menggunakan Citra Satelit Shuttle Radar Topography Mission. Jurnal Geografika (Geografi Lingkungan Lahan Basah), 1(1), 12-19. https://doi.org/10.20527/jgp.v1i1.2293.

Murwibowo, P., & Gunawan, T. (2013). Aplikasi Penginderaan Jauh Dan Sistem Informasi Geografis untuk Mengkaji Perubahan Koefisien Limpasan Permukaan Akibat Letusan Gunung Merapi Tahun 2010 Di Sub Das Gendol Yogyakarta. Jurnal Bumi Indonesia, 2(1).

Pamuji, K. E., Lestari, O. A., & Mirino, R. R. (2020). Analisis Morfometri Daerah Aliran Sungai (Das) Muari Di Kabupaten Manokwari Selatan. Jurnal Natural, 16(1), 38 - 48. https://doi.org/10.30862/jn.v16i1.59.

Wahyuningrum, N., & Pramono, I. B. (2007). Aplikasi Sistem Informasi Geografis Untuk Perhitungan Koefisien Aliran Permukaan Di Sub Das Ngunut I, Jawa Tengah. Jurnal Penelitian Hutan dan Konservasi Alam, 4(6), 561-571.




DOI: http://dx.doi.org/10.31258/dli.11.2.p.74-79

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.