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All Journal INDONESIAN JOURNAL OF APPLIED PHYSICS MITRA: Jurnal Pemberdayaan Masyarakat Jurnal Teras Fisika : Teori, Modeling, dan Aplikasi Fisika Prosiding University Research Colloquium LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Sorja Koesuma
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Humanities Astronomy Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health

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Journal : indonesian journal of applied physics

 1 
Pemisahan Anomali Regional-Residual pada Metode Gravitasi Menggunakan Metode Moving Average, Polynomial dan Inversion Jarot Purnomo; Sorja Koesuma; Mohtar Yunianto
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 3, No 01 (2013): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v3i01.1208

Abstract

It has been done a research about separation of regional-residual anomaly in Gravity method. This research compares the result of three methods i.e. moving average method, polynomial method, and inversion method. The computer program is created using a computer programming Matlab 7. From three methods that have been made, the separation results are compared withresults of separation by using Upward Continuation method. From the results of these comparisons will be available an excellent program of regional-residual anomali separation. The results show that in polynomial method of the order 4 obtained similar contour to the separation by Upward Continuation Software. So that the output of this separation will be treated again with Grav2DC software. The output of this software is the density of rock Grav2DC of the studyarea. Processing results obtained the minimum error of 1.85% for the separation by polynomial method, while for the method of Upward Continuation obtained minimum error of 2.22%. The results obtained show that the separation of regional-residual anomali by polynomial method is similar to separation by Upward Continuation method.
Kajian Indeks Bahaya Seismik Regional Menggunakan Data Seismik Pulau Jawa Tahun 1900-2006 Sulistiyani S; Sorja Koesuma; Nugroho Budi W
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 3, No 01 (2013): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v3i01.1210

Abstract

It has been conducted a research about Regional Seismic Disaster Index (RSDI) in Java Island by using seismic data from 1900 – 2006. RSDI is a index showing vulnerability seismic disaster in an area. The hight risk area is the highest risk, the low area is the lowest risk. The highest RSDI areas were Banten, Jawa Barat, and D.I Yogyakarta Provinces. While the lowest RSDI areas were DKI Jakarta and Jawa Tengah Province. Deviations standard value showed the moving RSDI value each region. Region with big RSDI value had high Seismic level were Banten , Jawa Barat, and D.I. Yogyakarta Province.
Co-Authors AHMAD MARZUKI Andika Dwi Cipta Susanto Aria Arga Ananta Azar Rafliardi Abdullah Bambang Sunardi Budi Legowo Chatarina Muryani Darsono Darsono Dhia Azmi Nabila Dian Novita Dzul Fadli Badaruddin Fajar Nursodik Gatot Yuliyanto Handono Ramelan Harjana Harjana Imam Arifin Iwan Yahya Izzuki Hamida Jarot Purnomo Mohtar Yunianto Muhammad Salfas Nugroho Budi W Nuryani Nuryani Rizki Amalia Pratiwi Sarjoko Lelono Sulistiyani S Wisnu Krismonanto