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All Journal BERKALA FISIKA POSITRON Pixel : Jurnal Ilmiah Komputer Grafis Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Rekayasa Sipil dan Desain JGE (Jurnal Geofisika Eksplorasi) JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Geocelebes Indonesian Physical Review Jurnal Penelitian Geografi (JPG) Journal of Indonesian Rural and Regional Government (JIRReG) Journal of Scientific Research, Education, and Technology Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Proceeding Seminar Nasional IPA Lughawiyah: Journal of Arabic Education and Linguistics Jurnal Komputer dan Teknologi (JUKOMTEK) Jurnal Teknologi dan Inovasi Industri Social Science Research Journal Jurnal Geosaintek Jurnal Konstatering Datum: Journal of Geodesy and Geomatics
Ahmad Zaenudin
Universitas Lampung
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Medicine & Pharmacology Physics Social Sciences Other

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 1 
Karakterisasi Zona Sliding Di Perbukitan Ranggawulung Subang Dengan Metoda Geolistrik Tahanan Jenis Susanto, Kusnahadi; Zaenudin, Ahmad
BERKALA FISIKA Vol 13, No 2 (2010): Berkala Fisika, Edisi Khusus
Publisher : BERKALA FISIKA

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Abstract

Subang Ranggawulung Hills is a road connecting Bandung- Subang which is landslide-prone. Landslides have occurred in the area and now the potential for ground movement is still visible which is characterized by crack and wave roads and buildings sideway. This study characterizes the sliding zone and the direction of movement of ground geoelectric resistivity method. Geoelectrical resistivity method to detect the existence of a sliding zone of the layer surface lapsed causes that caused Landslides. Of geoelectric resistivity cross-section indicates that the contact area between the layers with a certain slope at a depth of about 3-10 m below ground surface. Fields marked with a contact layer of low resistivity value of about 5-10 m which is consistent on all tracks. By observing these results can be seen that the hills Ranggawulung potential for the occurrence of landslides, although slow moving. Key words: landslides, low resistivity
Koreksi Gaya Berat Akibat Curah Hujan Pada Pengukuran Gaya Berat Mikro Antar-Waktu Lapangan Panas Bumi Kamojang 2006-2007 Zaenudin, Ahmad
BERKALA FISIKA Vol 13, No 2 (2010): Berkala Fisika, Edisi Khusus
Publisher : BERKALA FISIKA

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Abstract

Shallow groundwater level changes cause seasonal gravity anomaly. Changes in groundwater level is directly related to rainfall, when heavy rainfall, groundwater level rises rapidly and then declined gradually. Gravity anomaly due to the season is important to take into account noise. Changes in groundwater level due to rainfall is calculated using empirical equations, and the Gravity response calculated using the approach of an infinite Bouguer slab correction by entering the porosity factor. The rainy season in the Kamojang geothermal field occur between November to June and dry season between July to October. The highest rainfall in 24 hours occurred on December 8 by 75 mm. From the empirical calculations showed that changes in groundwater level due to rainfall period November 2006-June 2006 amounted to -1.502 m and July 2007-June 2006 amounted to +0.396 m. Based on the approach slab Bouguer corrected gravity anomaly not to cause inter-time respectively -18.89 and +5.98 mikrogal mikrogal for porosity of 30%. Changes in groundwater level is negative (a reduction of groundwater) caused gravity anomaly time inter-negative, and vice versa. Correction of the gravity anomaly due to inter-time rainfall should not be ignored because of the gravity anomaly at the time inter-geothermal field is usually small.   Key words: rainfall, groundwater level, inter-period gravity anomaly
Co-Authors Adhi Wibowo Agung Wiyono Ahmad Anas ANDRI KURNIAWAN Apriliani, Maya Aryanti, Ismi Bagus Sapto Mulyanto Dani, Ilham Daniel Rudjiono Darmawan, I Gede Boy Darmawan, I.G.B Destawan, Ridho Dian Pratiwi Djunaedi Djunaedi Dwi Kusuma, Rinaldo Edo Pratama Eko Rahmadi Eko Rananda Erfani, S Fachri Aldi Pramudya Fahmi, Muhammad Danial Fajriyanto Farduwin, A Fitri, Laely Mahfurotul George Laimeheriwa Hanif, Irfan Hasyim, Mohamad Yusuf Ahmad Hayu Nurfaidah I Gede Boy Darmawan Ilham Dani Ilham Tri Putra Sofiyadin Irawan, Doni Irfan - Hanif Iskandar Zulkarnaen Kafhaya, Hira Kamaluddin Kamaluddin Karyanto, Karyanto Karyanto, Karyanto Khairika, Anwar Khatimah, Khusnul Kurniasih, Aulia Kusnahadi Susanto Laimeheriwa, George Masdar Helmi Milah Hamdalah, Ratu Mudrofin, Mudrofin Muh Sarkowi Muhammad Azam Nabila, Putri Nandi Haerudin Niar Amalia Niken, Chatarina Nurrochman, Arsy Pascaloa, M Rafif Putranto, Kharisma Bayu Rachmat Arief Raden Mohamad Herdian Bhakti Rahmat C Wibowo Rananda, Eko Restu Ningsih Rismawati, Indah Rustadi ., Rustadi Safitri, Liya Santoso, Nono Agus Satriawan, Akbar Shiska Yulistina Siska Erna Sephiana Stephani Diah Pamelasari, Stephani Diah Suharno Suharno Suharno Suharno Wibowo, Rahmat Catur Wigati, Anugrah Sukma Dia Yulfiani, Rizka Amalia Yuli Setyowati Zaenal Abidin