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All Journal Geo Media: Majalah Ilmiah dan Informasi Kegeografian Jurnal Pengembangan Energi Nuklir Majalah Geografi Indonesia Geo-Image Journal JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) JURNAL ILMIAH GEOMATIKA MAJALAH ILMIAH GLOBE Jambura Geoscience Review IJEEM - Indonesian Journal of Environmental Education and Management Journal of Applied Geology Environmental and Materials Jurnal Geosains Terapan
Tito Latif Indra
Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Indonesia, Depok
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics Physics Social Sciences

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Flood Disaster Prediction Model Using Long Short-Term Memory (LSTM) in Pekalongan, Central Java. Asrofi, Muhammad; Septyandy, Muhammad Rizqy; Indra, Tito Latif
Journal of Applied Geology Vol 8, No 2 (2023)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jag.92417

Abstract

Pekalongan is located in the northern part of Java Island, directly adjacent to the sea in the north. Natural disasters that often occur in Pekalongan are floods, especially in the north of the area, which has a height of 0 meters above sea level. In addition, Pekalongan also has a relatively low land slope of around 0 – 5%, which makes it challenging to distribute water and construct drainage. This study aims to be able to perform predictive modeling of flood-prone areas for the next five years. This study used eight parameters: rainfall, elevation, slope, distance to the river, distance to the sea, groundwater table to surface, soil type, and land use. This research used the Long Short-Term Memory (LSTM) method to predict rainfall parameters using the Python programming language with Jupyter Notebook software. Later, the data will be used as training and test data. Training data testing and tests are conducted to find the minimum failure or error value. The weight scoring method is carried out on each parameter to indicate areas with a high flood vulnerability level. The results showed that Pekalongan has a medium to very high vulnerability level, with a dominant high vulnerability level. The very high level of vulnerability is prevalent in the northern part of the research area, which is directly adjacent to the sea or in the North Pekalongan District. Floods that occur in the northern part of the study area are not only due to high levels of rainfall but can also occur due to the inflow of seawater towards the mainland resulting from high tides and high sea waves. The southern region of the study area has a smaller vulnerability level than the northern region, which has a medium to high vulnerability level.Keywords: Flood ∙ Hazard ∙ Precipitation ∙ LSTM ∙ Rainfall
The Limestone Diagenesis in The Bojongmanik Formation Based on Petrographic Analysis Sani, Yogie; Astuti, Tri Rani Puji; Indra, Tito Latif
Jurnal Geosains Terapan Vol 6 No 1 (2023): Jurnal Geosains Terapan
Publisher : Lembaga Ilmu Pengetahuan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Bojongmanik Formation is a deposit belonging to the Banten Block, has an age range from Middle Miocene toearly Pliocene, and is interspersed with sandstone, marl, shale claystone, and limestone (Sudana and Santosa, 1992).The limestone members of the Bojongmanik Formation are limestones containing mollusks with age equivalent to theMiddle Miocene (Efendi, 1998). This research aims to know the microscopic labeling. This diagenetic process workson the limestone in the Bojongmanik Formation to know the stages of diagenesis and the relationship between thediagenetic process and the porosity of the limestone. The method used in this research is petrographic analysis. Basedon the results of research from 15 samples of thin incisions of the Bojongmanik Formation, there are three types oflimestone: packstone limestone, floatstone limestone, and wackestone limestone, which undergo a process ofdiagenetic cementation, dissolution, neomorphism, microbial micritization, and compaction. The depositionalenvironment of the limestone diagenesis of the Bojongmanik Formation is in the marine phreatic, burial, meteoricphreatic, and meteoric vadose environments. The dominant porosity was found to be vuggy and intraparticle types.One factor that influences the process of diagenesis is the formation of secondary porosity in limestone. The lowerporosity value indicates that there is a little dissolving effect. The higher porosity value indicates much dissolving inthe phreatic zone.Keyword: The Bojongmanik Formation, Petrography Analysis, Porosity, Limestone Diagenesis
Daya Dukung Lahan Permukiman Berbasis Kemampuan Lahan di Wilayah Peri-Urban (Studi Kasus: Kabupaten Bekasi, Kabupaten Tangerang dan Kabupaten Bogor) Fadhilah, Raina Arfa; Dimyati, Muhammad; Indra, Tito Latif; Gracia, Enrico
Geomedia Majalah Ilmiah dan Informasi Kegeografian Vol. 22 No. 1 (2024): Geo Media: Majalah Ilmiah dan Informasi Kegeografian
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/gm.v22i1.65367

Abstract

Lahan merupakan sumberdaya penting yang kebutuhannya terus meningkat. Namun, ketersediaannya tidak bertambah yang memicu alih fungsi lahan di perkotaan, dan berefek pada perluasan lahan permukimannya ke pinggiran kota, yang disebut peri-urbanisasi. Jabodetabekjur adalah wilayah metropolitan terpadat di Indonesia dengan Kota Jakarta sebagai kota inti dan peri-urban, khususnya Kabupaten Bekasi, Kabupaten Tangerang dan Kabupaten Bogor. Penelitian ini bertujuan mengevaluasi daya dukung lahan permukiman berbasis kemampuan lahan berdasarkan dinamika fisik, sosial dan ekonomi wilayah peri-urban Kota Jakarta sebagai salah satu upaya perencanaan, pemanfaatan dan pengawasan lahan berkelanjutan. Metode yang digunakan dalam penelitian ini adalah studi literatur dengan data-data yang dikumpulkan dari sumber terkait. Hasil menunjukkan bahwa kemampuan pengembangan lahan permukiman di Kabupaten Bekasi, Kabupaten Tangerang, dan Kabupaten Bogor masih cukup tinggi, tepatnya masing-masing sebesar 97%, 98% dan 45,96% dan memiliki status daya dukung permukiman surplus masing-masing sebesar  2,6, 2,7, dan 1,87. Lahan permukiman potensial yang dihasilkan membentuk pola menyebar menuju dataran rendah dan wilayah studi kasus memiliki wilayah yang sudah bersifat kekotaan.
Co-Authors Annisa, Illa Ari Nugroho Asriza Asriza Astuti, Tri Rani Puji Eko Kusratmoko Fadhilah, Raina Arfa Gracia, Enrico Join Wan C. Sigalingging M.H. Dewi Susilowati, M.H. Dewi Muhammad Asrofi, Muhammad Muhammad Dimyati Muhammad Rizqy Septyandy Pin, Tjiong Giok Priyanka Prajna Paramitha R. Syahputra Raldi Hendro Koestoer, Raldi Hendro Randhi Atiqi, Randhi Ratna Saraswati, Ratna Rudy P. Tambunan Sani, Yogie Shidiq, Iqbal Putut Ash Supriatna Supriatna Supriatna Twin Hosea Widodo Kristyanto Wiguna, Dede Prabowo Yumnaristya, Syefiara Hania