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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Tunas Geografi REKA GEOMATIKA Rekayasa Sipil Journal of Science and Applicative Technology Jurnal Geografi Jurnal Geografi, Edukasi dan Lingkungan Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital International Journal of Remote Sensing and Earth Sciences (IJReSES) J SIG (Jurnal Sains Informasi Geografi) Celebes Abdimas: Jurnal Pengabdian Kepada Masyarakat Jurnal ABDINUS : Jurnal Pengabdian Nusantara JURNAL GEOGRAFI Geografi dan Pengajarannya Jurnal Geosains dan Remote Sensing (JGRS) Jurnal Geosaintek The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Simarmata, nirmawana
Department Of Geomatics Engineering, Faculty Of Infrastructure And Regional, Institut Teknologi Sumatera
Agriculture, Biological Sciences & Forestry Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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INTEGRASI PEMETAAN ANCAMAN, KERENTANAN, DAN KAPASITAS DALAM KAJIAN RISIKO GEMPABUMI DAN TSUNAMI DI PESAWARAN, LAMPUNG Nadzir, Zulfikar Adlan; simarmata, Nirmawana; Agustina, Lea Kristi; Apriani, Mutia Rahma
Jurnal Geosaintek Vol. 10 No. 2 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v10i2.1858

Abstract

Pesawaran adalah nama dari sebuah kabupaten di Provinsi Lampung. Pada kabupaten ini terdapat sesar lokal dan area pesisir yang berbatasan langsung dengan Selat Sunda, sehingga rawan terjadi gempabumi dan tsunami. Penelitian ini bertujuan untuk menganalisis tingkat risiko dari gempabumi dan tsunami di Kabupaten Pesawaran menggunakan indeks ancaman, kerentanan, dan kapasitas. Metode yang digunakan adalah Probabilistic Seismic Hazard Analysis (PSHA) untuk pembuatan peta ancaman gempabumi dan perhitungan Hloss untuk pembuatan peta ancaman tsunami. Hasil penelitian menunjukkan bahwa bencana gempabumi Kabupaten Pesawaran memiliki risiko rendah hingga sedang. Tidak ada indeks risiko tinggi gempa bumi di Kabupaten Pesawaran. Hal ini dikarenakan indeks ancaman dan kerentanan berada pada kategori rendah hingga sedang, dan indeks kapasitas berada pada kategori tinggi. Indeks risiko sedang dengan luas terbesar berada di Desa Bogorejo, Gedong Tataan seluas 2.695,02 ha. Sedangkan, untuk bencana tsunami hanya berpotensi di beberapa kelurahan yang terletak di Kecamatan Teluk Pandan, Punduh Pidada, Padang Cermin, dan Marga Punduh. Hampir seluruh wilayah tersebut memiliki indeks ancaman yang tinggi, namun indeks risikonya sebagian besar berada pada kategori rendah hingga sedang, hanya sebagian kecil yang memiliki risiko tinggi tsunami. Hal ini dikarenakan indeks kerentanan berada pada kategori rendah hingga sedang, dan indeks kapasitas berada pada kategori tinggi. Sehingga, meskipun ancaman di wilayah tersebut tinggi, namun risikonya dapat diperkecil  karena minimnya kerentanan ditambah dengan kapasitas yang tinggi. Salah satu wilayah yang memiliki indeks risiko tsunami adalah Desa Persiapan Dantar, Kecamatan Padang Cermin dengan luas sebesar 349,42 ha.
Assessing Urban Land Surface Temperature Fluctuations Amidst the Covid-19 Pandemic: A Landsat 8 and Landsat 9 Study of Bandar Lampung City Simarmata, Nirmawana; Santo, A Ki Asmoro
Tunas Geografi Vol. 12 No. 2 (2023): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v12i2.51078

Abstract

Community activities before, during, and after the Covid-19 pandemic have undergone significant changes. This is due to the limitation and exemption of activities set by the government which can also result in changes in surface temperature. Physical separation from the Large-Scale Social Restrictions (PSBB) has led to a decrease in communal activities like traffic and the industrial sector, which has a policy of allowing most employees to work from home. This study intends to examine variations in Bandar Lampung surface temperature that took place in 2020, 2021, and. Identifying surface temperature using remote sensing technology, including Landsat 8 and Landsat 9 images. Both of these images have advantages with a large number of bands, especially the presence of a Thermal Infrared Sensor (TIRS) wavelength which has a sensitivity to detect temperature. Utilization of this wavelength can distinguish parts of the earth's surface that have a hotter temperature than the surrounding area. The land surface temperature (LST) approach can be used to determine the dynamics of surface temperature variations before, during, and after the Covid-19 epidemic. Image processing and analysis are done using Google Earth Engine. The results of the analysis of surface temperatures before Covid, the image recording time in 2020 has a value range of 13oC - 32oC, during the occurrence of Covid, the 2021 recording time has a value range of 3oC - 33oC, while after Covid, the 2022 recording time has a value range of 18oC - 32oC.Keywords: Covid-19, Landsat 8, Landsat 9, LST
PREDICTIVE MAPPING OF CRITICAL LAND IN BENGAWAN SOLO WATERSHED: AN INTEGRATED APPROACH USING LANDSAT IMAGERY AND TERRAIN ANALYSIS Nirmawana Simarmata; Dewi Nawang Sari; Annisha Bunga Fathya; M Sri Harta
International Journal of Remote Sensing and Earth Sciences Vol. 21 No. 1 (2024)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2024.v21.a3907

Abstract

Inappropriate land use can have negative impacts, increasing the risk of land becoming critical. Managing critical land and growing human needs is essential to balance land and water resources. This research aims to map necessary land in the Bengawan Solo watershed. The research method integrates remote sensing and geographic information system (GIS) methods. Critical land analysis was conducted based on the Regulation of the Director General of Watershed and Protected Forest Control Number P.3/PDASHL/SET/KUM.1/7/2018, which is used as a reference in determining whether land is categorized as critical land. The regulation uses 4 (four) variables in its processing: land cover variables, slope, erosion hazard level, and forest area. The study results show land criticality in the Bengawan Solo watershed in 2023. Most areas have low slopes (0-8%), considered non-critical, covering 30.50% of the total area. In contrast, the Potentially Critical category (8-15%) dominates with 45.94% of the area, indicating potential risks in moderately steep areas. Areas with steeper slopes fall into the Critical (10.29%) and Very Critical (2.68%) categories.
THE UTILIZATION OF REMOTE SENSING AND GEOGRAPHIC INFORMATION SYSTEMS FOR ANALYSIS OF LAND SUITABILITY FOR THE GROWING OF CIPLUKAN (PHYSALIS ANGULATA L.) Nur Adliani; Nirmawana Simarmata; Heriansyah
International Journal of Remote Sensing and Earth Sciences Vol. 16 No. 1 (2019)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/ijreses.v16i1.13830

Abstract

Remote sensing data and geographic information systems are widely used for land suitability analysis for crops such as coffee and corn. This study aims to analyze and map suitable land for the plant known locally as ciplukan (Physalis angulata L.). Â As the cultivation of this plant is expected to be developed by the Institute of Technology of Sumatra, analysis of this type is needed. The parameters used in this study were slope, land use, rainfall and soil type. Information extraction from remote sensing data was carried out via visual interpretation of aerial photography used to create land-cover maps. Shuttle RADAR Topographic Mission (SRTM) data was converted from digital surface model (DSM) to digital terrain model (DTM) to provide elevation information. Land suitability analysis was performed using a scoring method and overlay analysis. The results obtained from the analysis identified several classes of land suitability for Physalis angulata L., categorized as suitable, less suitable, and not suitable. The less suitable class, scored at 9 to 11, comprised a total area of 180.96 ha, while the suitable area, scored at 12, comprised a total area of 49.1 ha.
Co-Authors . Heriasnyah Adhitama, Gregorius Prasetyo Adil, Irdam Agung Pandi Nugroho Al Farishi, Bilal Aldyansyah, Muhammad Aliffia Aliffia Annisha Bunga Fathya Apriani, Mutia Rahma Ayudia Hardiyani Kiranaratri Damayanti, Elok Denny Hidayat Dewi Nawang Sari Dudung Muhally Hakim Fathya, Annisha Bunga Fauziah, Afi Fitralia Elyza Giovani, Muhammad Harta, M Sri Hendrawan, Rezki Naufan Heriansyah Heriansyah Heriansyah Hidayat, Esa Fajar Irdam Adil Ketut Wikantika Lea Kristi Agustina Lea Kristi Agustina M Sri Harta Nadzir, Zulfikar Adlan Nanda Nurisman Nugroho, Agung Pandi Nur Adliani Prima Roza Purnama, Yustika Putra Perdana, Agung Mahadi Rezalian Vatiady Santo, A Ki Asmoro Sari, Dewi Nawang Sijabat, Juniati Tohir, Rizki Kurnia Trika Agnestasia Tarigan Trika Agnestasia Tarigan Wijayanti, Goldie Melinda Yudha Rahman Yuni Lisafitri, Yuni