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All Journal INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Geografi Prosiding Seminar Nasional Universitas Serambi Mekkah JIPI (Jurnal IPA dan Pembelajaran IPA)
Nazli Ismail
Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Efficient Use of Satellite Gravity Anomalies for mapping the Great Sumatran Fault in Aceh Province Muhammad Yanis; Marwan Marwan; Nazli Ismail
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 9, No 02 (2019): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (805.861 KB) | DOI: 10.13057/ijap.v9i2.34479

Abstract

Gravity Satellite has been widely used in tectonic studies and regional of geological mapping. The Satellite Gravity data are provided free by Scripps Institution of Oceanography, University of California San Diego. The data are acquired by GEOSAT and ERS-1 satellites with a 1.5 km resolution for one pixel. For a further application, the tilt derivative analytic technique was used in order to enhance linear trends of the geological structure revealed by the Bouguer anomalies. The method is represented by the value of an angle between the total horizontal and vertical derivative from the gravity data. The results show that the tilt derivative calculation has been able to map clearly some geological structures on the north of Sumatra i.e., the Aceh and the Seulimeuem segments, as well as some local faults around them. On the other hand, Banda Aceh as the capital city of Aceh Province and Pidie District is dominated by positive values of the tilt derivative anomalies. The data coincide with geological maps of both areas where they are covered by alluvial deposits. Based on the result, it can be concluded that the tilt derivative method is potentially used for quick interpretation of the satellite gravity data.
EVALUATION OF HOTSPOTS BASED ON CLIMATE DATA IN THE NAGAN RAYA REGENCY, ACEH Abdurahman Abdurahman; Nazli Ismail; Faisal Abdullah; I Dewa Gede Arya Putra
JURNAL GEOGRAFI Vol 14, No 2 (2022): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v14i2.31358

Abstract

Identifying hotspots as a potential for wildfires due to weather/climate factors needs to be studied in more detail to consider the policies taken by relevant agencies in the Nagan Raya Regency, mainly consisting of peatlands. Rainfall observation data in some areas are incomplete, so alternative data are needed for rainfall estimation for those areas, such as satellite data. However, the satellite data does not necessarily match the conditions in the field, so validation is needed. In this study, satellite data were validated with available observational data in the area, so the results can be used as a reference when field data is unavailable. The data used are GSMaP_GNRT6 and observation data from 5 rainfall observation posts: Beutong, Cut Nyak Dien Meteorological Station, Darul Makmur, PT. Socfindo and Pulo Ie for the period 2010-2019. The satellite and the observation data were correlated with the Pearson method to see the relationship between the two data. The difference between each satellite data and observations at the same time and place is calculated using the formulas Mean Error (ME), Root Mean Square Error (RMSE) and Mean Absolute Error (MAE). Furthermore, a case study of fire incidents and satellite hotspot data at several locations was also observed simultaneously. In addition, the validated rainfall data were also used to calculate the Standardized Precipitation Index (SPI) value. The result shows the validation of rainfall data with GSMaP_GNRT6 satellite data has a moderate correlation with the MAE value ranging from 101.3 to 195.12 from the five rainfall observation posts. The results also show that a 10-day base of rainfall before the occurrence of the wildfires was in a low category (86%). The number of hotspot occurrences was also supported by the negative monthly SPI value, high air temperature, and the type of land in the study area. Keywords: Hotspot, Rainfall, Air Temperature, Wildfires, Peat Lands
PERANCANGAN MODEL PEMBELAJARAN E-LEARNING UNTUK PENGURANGAN RISIKO BENCANA DI LINGKUNGAN UNIVERSITAS SERAMBI MEKKAH BANDA ACEH Musliyadi Musliyadi; Samsuddin Samsuddin; Zulkarnain Zulkarnain; Nazli Ismail
Prosiding Seminar Nasional USM Vol 1, No 1 (2017): Prosiding Seminar Nasional USM
Publisher : Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (637.062 KB)

Abstract

Pengurangan risiko bencana merupakan salah satu poin penting dalam rangka mengurangi jumlahkorban dalam suatu bencana. Aceh adalah salah satu provinsi di Indonesia yang mengalamibencana gempa dan tsunami pada tahun 2004 lalu yang banyak berjatuhan korban jiwa maupunkorban harta benda. Pendidikan terhadap pengurangan risiko bencana sudah menjadi sebuahacuan bagi perguruan tinggi dalam mengimplementasikan materi pengurangan risiko bencana.Penelitian ini dilakukan di Universitas Serambi Mekkah (USM) dengan menggunakan populasimahasiswa dan dosen di lingkungan USM. Model e-learning yang dirancang menggunakan mediawebsite melalui penggunaan internet maupun intranet di kalangan USM dan materi-materi yangakan ditampilkan adalah berupa teks, photo dan video-video yang membantu dalam tujuanpengurangan risiko bencana. Jenis penelitian ini adalah penelitian research and development (R D), dimana pada penelitian ini dilakukan berbagai riset untuk mendapatkan suatu model elearningyangdirancangdanuntukdikembangkanmenjadisuatumodelpembelajarane-learningyangdapatdigunakanuntukkeperluanyanglama. Penelitian ini dilaksanakan di USM, populasiyang digunakan adalah mahasiswa dan dosen sebanyak 50 orang dan teknik pengambilan sampelmenggunakan sampling jenuh yaitu teknik pengambilan sampel bila semua anggota populasidigunakan sebagai sampel. Hasil penelitian ditemukan bahwa dosen dan mahasiswa mendukungterhadap hasil perancangan e-learning kebencanaan untuk dikembangkan dan diterapkan di USM. 
Pembuatan dan Penggunaan Replika Sedimen Tsunami Purba untuk Media Pembelajaran Tsunami Walid Amri*; Nazli Ismail; Cut Dewi
JIPI (Jurnal IPA dan Pembelajaran IPA) Vol 6, No 4 (2022): DECEMBER 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v6i4.27274

Abstract

The evidence of past disasters can be used to support disaster risk reduction efforts. Many records of past disasters are obtained in the field based on geological studies related to disasters, for example the paleotsunami sediments of the Gua Ek Leuntie. The education process for this evidence cannot be carried out directly in the field. Therefore, an effort is needed so that evidence of past disasters can be presented to the community, for example through making replicas. This study aims to describe the process of making a replica of the Gua Ek Leuntie tsunami sediment and evaluate its design and use as a learning tool about the tsunami. Making a replica of the tsunami sediment of the Gua Ek Lentie was carried out using modeling techniques. The replica was placed in the Tsunami Museum to be assessed for its design and use by visitors, museum staff and artists. Data were collected by using observation and semi-structured interview techniques and then analyzed by qualitative descriptive. The result obtained is a replica that is similar to the original. Analysis of the design and use shows that replica can be a learning tool about tsunami
Co-Authors Abdurahman Abdurahman Cut Dewi Faisal Abdullah I Dewa Gede Arya Putra Marwan Abu Bakar Muhammad Yanis Musliyadi Musliyadi Walid Amri* Zulkarnain Zulkarnain