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Adrianto, Bayu
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Analisa Laju Sedimentasi di Muara Sungai Karangsong, Kabupaten Indramayu Adrianto, Bayu; Hariyadi, Hariyadi; Rochaddi, Baskoro
Journal of Oceanography Vol 6, No 1 (2017)
Publisher : Program Studi Oseanografi, Jurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2679.374 KB)

Abstract

Sungai Karangsong terletak di Desa Karangsong, Kecamatan Indramayu, Kabupaten Indramayu, Provinsi Jawa Barat. Sungai Karangsong pada mulanya merupakan anak sungai Cimanuk. Tetapi sejak pembangunan bendungan Waledan pada tahun 2011, sungai Karangsong merupakan Daerah Aliran Sungai (DAS) yang terpisah dari sungai Cimanuk. Dalam 1 minggu bisa terjadi 1-2 kali pengerukan sedimen di alur sungai dan muara sungai Karangsong karena terjadinya pendangkalan. Sehubungan dengan kondisi yang terjadi di sungai dan perairan sekitar muara sungai Karangsong, maka perlu dilakukan analisa untuk mengetahui nilai laju sedimentasi dan faktor yang mempengaruhinya. Penelitian ini menggunakan data utama dan data pendukung. Data utama, meliputi contoh sedimen dan data arus. Sedangkan untuk data pendukung, meliputi data pasang surut dan peta Rupa Bumi Indonesia Kota Indramayu. Pengambilan contoh sedimen dilakukan selama 15 hari menggunakan alat sediment trap dengan interval waktu pengambilan contoh sedimen selama 3 hari 1 kali pengambilan. Penempatan sediment trap dilakukan di 7 lokasi, yaitu  1 sediment trap di alur sungai, 1 sediment trap di muara sungai dan 5 sediment trap di perairan sekitar muara sungai Karangsong. Pengukuran data arus dilakukan selama 25 jam dengan interval waktu pengambilan data adalah 1 jam. Berdasarkan hasil penelitian yang diperoleh, dapat diketahui nilai laju sedimentasi yang terdapat di setiap lokasi penelitian. Lokasi 1 di alur sungai nilai laju sedimentasinya yaitu 108,8 g/m²/hari. Lokasi 2 di muara sungai nilai laju sedimentasinya yaitu 101,3 g/m²/hari. Lokasi 3-7 di perairan sekitar muara sungai nilai laju sedimentasinya bervariasi tetapi tidak lebih tinggi dibandingkan dengan lokasi 1 dan 2. Nilai kecepatan arus maksimum di perairan Karangsong adalah 0,08849 m/s, nilai kecepatan arus minimum adalah 0,03731 m/s, sehingga diperoleh nilai rata-rata kecepetan arusnya adalah 0,0629 m/s.
Pesantren Al-Kahfi Somalangu Kebumen Dalam Lintasan Revolusi Adrianto, Bayu; Wijayati, Putri Agus
Journal of Indonesian History Vol 9 No 1 (2020): Journal of Indonesian History
Publisher : Jurusan Sejarah Fakultas Ilmu Sosial Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jih.v9i1.40983

Abstract

In 1945-1949, along with the development of the nationalism spirit of rejection of colonialism echoed by international institutions, which were transferred to countries in the world, including Indonesia. The return of the Dutch to occupy Indonesia, the spread of the spirit of patriotism in various regions spearheaded by the military and the army of the people. One of them is the resistance carried out by the Islamic laskar of Somalangu Al-Kahfi Islamic Boarding School. The Islamic Warriors, named the Islamic Oemat Force (AOI), guarded the Kebumen area and the capital of Yogyakarta from the Dutch attack. The results of the study showed that the role of the AOI as an Islamic army which had its headquarters in Al-Kahfi Somalangu Islamic Boarding School was quite large during military aggression. they commanded with the military trying to defend Kebumen from the Netherlands. Not only that, the contribution was also carried out in maintaining the Republic of Indonesia's capital, Yogyakarta. After the KMB diplomacy, the fusion of paramilitary forces and military forces became a part of APRIS, apparently not ready. This can be seen after the clash between groups, which resulted in civil war.
Pesantren Al-Kahfi Somalangu Kebumen Dalam Lintasan Revolusi Adrianto, Bayu; Wijayati, Putri Agus
Journal of Indonesian History Vol 9 No 1 (2020): Journal of Indonesian History
Publisher : Jurusan Sejarah Fakultas Ilmu Sosial Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jih.v9i1.40983

Abstract

In 1945-1949, along with the development of the nationalism spirit of rejection of colonialism echoed by international institutions, which were transferred to countries in the world, including Indonesia. The return of the Dutch to occupy Indonesia, the spread of the spirit of patriotism in various regions spearheaded by the military and the army of the people. One of them is the resistance carried out by the Islamic laskar of Somalangu Al-Kahfi Islamic Boarding School. The Islamic Warriors, named the Islamic Oemat Force (AOI), guarded the Kebumen area and the capital of Yogyakarta from the Dutch attack. The results of the study showed that the role of the AOI as an Islamic army which had its headquarters in Al-Kahfi Somalangu Islamic Boarding School was quite large during military aggression. they commanded with the military trying to defend Kebumen from the Netherlands. Not only that, the contribution was also carried out in maintaining the Republic of Indonesia's capital, Yogyakarta. After the KMB diplomacy, the fusion of paramilitary forces and military forces became a part of APRIS, apparently not ready. This can be seen after the clash between groups, which resulted in civil war.
Co-Authors Baskoro Rochaddi Maemonah, Maemonah Putri Agus Wijayati