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Review on Tsunami Risk Reduction in Indonesia Based on Coastal and Settlement Typology Djati Mardiatno; M. Ngainul Malawani; Dandun Wacono; Despry Nur Annisa
Indonesian Journal of Geography Vol 49, No 2 (2017): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2661.532 KB) | DOI: 10.22146/ijg.28406

Abstract

This research aims to identify various coastal and settlement typology as the basis to determine action plan for reducing tsunami risk. The action plan were issued by referring to priority level of tsunami management. Comparative analysis was applied through comparing different coastal and settlement typology at the selected coastal area, considering the tsunami risk zones determined by National Disaster Management Agency (BNPB). The results show that mitigation strategies can be distinguished in various coastal and settlement typology for each priority area, i.e. in Mentawai megathrust, Sunda Strait and the southern part of Java, Bali region and Nusa Tenggara, and Papua region. The components of action plan should be conducted in accordance with the priority level of each region.
Analisis Kekeringan Berdasarkan Bentuklahan Di Das Bompon Maulida Rahmi; M. Anggri Setiawan; Djati Mardiatno
Media Komunikasi Geografi Vol. 20 No. 2 (2019)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/mkg.v20i2.18399

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Analisis kerawanan kekeringan dipengaruhi oleh kondisi satuan bentuklahan yang bervariasi pada wilayah kajian. Tujuan dari penelitian ini adalah (1) Memetakan kerawanan kekeringan menggunakan pengharkatan, (2) Menganalisis kerawanan kekeringan berdasarkan bentuklahan. Metode yang digunakan untuk memetakan kerawanan kekeringan yaitu pendekatan geomorfologi, pembobotan atau skoring diberikan pada setiap satuan bentuklahan sebagai indikator yang digunakan untuk menilai kelas kerawanan. Semakin besar pengaruh yang diberikan oleh indikator maka semakin besar pula skor atau pengharkatan yang diberikan. Hasil penelitian menunjukkan bahwa satuan bentuklahan interfluve dan lereng atas perbukitan memiliki tingkat kerawanan kekeringan tinggi. Kelas kerawanan kategori tinggi ditandai dengan kemunculan airtanah yang sulit ditemui. Kerawanan kekeringan kelas sedang berada pada bentuklahan lereng tengah perbukitan dan lereng bawah perbukitan. Bentuklahan lereng kaki koluvial dan dataran aluvial berada pada tingkat kekeringan kelas rendah, hal ini sesuai dengan kondisi yang ditemukan di lapangan, yaitu kemunculan airtanah yang mudah ditemui. Kekeringan pada satuan bentuklahan ditandai oleh kondisi morfologi dan lokasi ditemukannya mataair yang muncul di tekuk lereng. Penggunaan metode untuk kajian kekeringan dengan skala detail baik secara kualitatif dan kuantitatif perlu dilakukan lagi untuk menemukan perkembangan metode yang tepat dalam melakukan analisis kajian kekeringan dari segi sosial. Kata kunci: Bentuklahan; Daerah Aliran Sungai (DAS); Geomorfologi; Kerawanan; Kekeringan
Tingkat Bahaya Longsorlahan di Sub DAS Ngrancah Kabupaten Kulonprogo Wildhan Dayu Hardhoni; Suratman Suratman; Djati Mardiatno
Media Komunikasi Geografi Vol. 22 No. 1 (2021)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/mkg.v22i1.31099

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Indonesia merupakan negara yang memiliki intensitas kebencanaan yang tergolong tinggi, termasuk bencana alam seperti longsorlahan. Dalam catatan BNPB diketahui bahwa selama tahun 2020 tercatat 573 kejadian longsorlahan. Pada wilayah Provinsi Daerah Istimewa Yogyakarta khususnya wilayah Sub DAS Ngrancah yang terletak di Kabupaten Kulon Progo juga terjadi beberapa kejadian longsorlahan. Oleh karena itu untuk meminimalisir kejadian maupun kerugian akibat longsorlahan perlu dilakukan penelitian yang membahas tentang tingkat bahaya longsorlahan. Penelitian ini memiliki tujuan yaitu menganalisis tingkat bahaya longsorlahan dan persebaran tingkat bahaya longsorlahan berdasarkan zonasi Sub DAS Ngrancah. Data yang digunakan adalah data skunder yang diperoleh dari beberapa instansi pemerintahan sedangkan metode untuk analisis menggunakan tumpeng tindih antar layer parameter dan skoring pada setiap parameter yang digunakan. Hasil penelitian menunjukkan bahwa terdapat tiga tingkat bahaya yang tersebar di wilayah Sub DAS Ngrancah yaitu sedang (74 satuan lahan), cukup tinggi (380 satuan lahan) dan tinggi (155 satuan lahan). Sedangkan persebaran tingkat bahaya longsorlahan cukup tinggi dan tinggi sebagian besar tersebar di wilayah zona hulu (upper stream) dan zona tengah (middle stream). Diharapkan hasil penelitian ini dijadikan sebagai salah satu referensi semua stakeholders dalam pengelolaan wilayah Sub DAS Ngrancah sesuai dengan kemampuan lahan itu sendiri.
Integrasi SWOT dan AHP dalam Pengelolaan Ekosistem Mangrove di Kawasan Wisata Bahari Gugusan Pulau Pari Ferry Dwi Cahyadi; Nurul Khakhim; Djati Mardiatno
Jurnal Pariwisata Pesona Vol 3, No 2 (2018): Edisi Desember 2018
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (724.563 KB) | DOI: 10.26905/jpp.v3i2.2336

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Coastal ecosystems on small islands have a higher vulnerability than large islands due to limited resources and carrying capacity. Mangroves as one of the main ecosystems on the coast of small islands and close to human activities make this ecosystem more vulnerable to disturbance. This study aims to determine the factors that influence the management of mangrove ecosystems and combine SWOT and AHP methods in the strategic management of mangrove ecosystem in the Pari Islands. Data collection was carried out with literature reviews, in-depth interviews and focus group discussions. The results of the data collected are then analyzed into a combination of AHP method with SWOT or known as A'WOT. A'WOT is used to formulate mangrove ecosystem management strategies. The results showed that the strategy for managing mangrove ecosystems in Pari Islands was prioritized in opening up areas or activities for ecotourism.
Participatory GIS Approach to Assessing Building Vulnerability to Tsunamis in Pangandaran Regency Ratri Ma'rifatun Nisaa'; Junun Sartohadi; Djati Mardiatno
Forum Geografi Vol 35, No 2 (2021): December 2021
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v35i2.14003

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Some cities in Indonesia which are located on Southern Java Island are susceptible to tsunamis. However, the application of participatory GIS for the assessment of building vulnerability to tsunamis remains rarely evaluated. The aims of this research are 1) to obtain the parameters of building vulnerability to tsunamis using the participatory approach, and 2) to evaluate the results of building vulnerability assessment using participatory GIS. A tsunami inundation map was constructed based on numerical modelling using the Hawke's Bay equation. Participatory approaches were taken to establish the parameters that affect the vulnerability of buildings to tsunamis using in-depth interviews. Respondents were selected using the purposive sampling technique. A geographic information system (GIS) was then applied to build a geodatabase and to perform analysis. The results show that six parameters were obtained from local people’s participation, namely building materials, the number of stories of the buildings , orientation, preservation condition, building row, and natural barriers. All the parameters were identified and interpreted using aerial photos. A field survey was conducted to complete the information on building characteristics. Many buildings near the beach were classified as having high and moderate vulnerability. The main benefit of participatory GIS is that the role of the community makes a significant contribution to providing vulnerability information. It also raises public awareness and improves preparedness for disaster risk management. The drawback is that parameters based on participatory approaches are dynamic and may be different in other areas.
KARAKTERISTIK TANAH HAHT (HUMAN ALTERED-HUMAN TRANSPORTED) DI AREA PERDESAAN TERHADAP KELESTARIAN LINGKUNGAN (Characteristics of HAHT (Human Altered-Human Transported) Soil in Rural Areas for Environmental Sustainability) Ahmad Fauzan Adzima; Muhammad Anggri Setiawan; Djati Mardiatno
Jurnal Sains Informasi Geografi Vol 2, No 2 (2019): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (601.176 KB) | DOI: 10.31314/jsig.v2i2.373

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Abstract - HAHT (Human Altered-Human Transported) soil is soil formed as a result of anthropogenic intervention. The land developed following the pattern of human needs that were suspected of having various problems and impacting the environment sustainability. The purpose of this study is to analyze the effect of HAHT soil characteristics on environmental sustainability. The method used in this research is survey and laboratory test. The results showed that human intervention has a real influence on the soil. HAHT soil characteristics ultimately affect soil function and adversely affect environmental sustainability. Keywords: HAHT Soil, Soil characteristic, Environmental sustainability. Abstrak - Tanah HAHT (Human Altered-Human Transported) merupakan tanah yang terbentuk hasil intervensi antropogenik. Tanah tersebut berkembang mengikuti pola kebutuhan manusia yang dicurigai memiliki berbagai permasalahan dan berdampak terhadap kelestarian lingkungan. Tujuan penelitian ini yaitu menganalisis pengaruh karakteristik tanah HAHT terhadap kelestarian lingkungan. Metode yang digunakan dalam penelitian ini yaitu survei dan uji laboratorium. Hasil penelitian menunjukkan bahwa Intervensi yang dilakukan manusia telah memberikan pengaruh yang nyata terhadap tanah. Karakteristik tanah HAHT pada akhirnya memengaruhi fungsi tanah dan berdampak buruk terhadap kelestarian lingkungan di lokasi penelitian. Kata Kunci : Tanah HAHT, Karakteristik tanah, Kelestarian lingkungan.
Anthropogenic Signatures in the Context of Landscape Evolution: Evidence from Citanduy Watershed, Java, Indonesia Mukhamad Ngainul Malawani; Djati Mardiatno; Eko Haryono
ASEAN Journal on Science and Technology for Development Vol. 37 No. 1 (2020): Earth, Water & Fire
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29037/ajstd.600

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The impact of humans on landscapes may differ across regions because anthropogenic intervention on the respective landscapes occurs in different human-induced contexts. This study was designed to assess the human-induced landscape evolution of the Citanduy Watershed, Java, Indonesia, and determine its anthropogenic signatures. Several approaches were used, namely anthropogenic landscape identification, anthropogenic soil development, sediment analysis, and monitoring of changes to Segara Anakan lagoon at the mouth of the Citanduy Rier. Five types of anthropogenic landscapes were observed in the research area, from a slightly modified landscape to a fully anthropogenic landscape. The anthropogenic signature was also found in the sediment of the lagoon. Present and recent environmental evolution of the lagoon was reconstructed based on series changes in the lagoon area. This reconstruction was then linked to the governmental program and anthropogenic intervention to reveal the complexity of the human-induced landscape evolution. Anthropogenic phenomena were found to strongly influence the evolution of Segara Anakan lagoon, as recorded approximately through three phases of its evolution: 1) natural processes occurring continuously until 1960, 2) human-induced landscape evolution, the boundary of which occurred in 1960–1980, and 3) the recent anthropogenic evolution that has existed since 1980.
TATAKELOLA LANSKAP RAWAPENING BERDASARKAN TINGKAT RESIKO BENCANA LINGKUNGAN DI SUB DAS RAWAPENING (Landscape governance of Rawapening based on the level of environmental disaster risk in the Rawapening Sub Watershed) Djati Mardiatno; faridah faridah; sunarno sunarno; Dwi Wahyu Arifudiin Najib; Yuli Widyaningsih; M. Anggri Setiawan
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 5, No 1 (2021): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2021.5.1.21-40

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ABSTRACT Lake ecosystem balance is influenced by the interaction and interrelation of upstream and downstream processes of catchment. Environmental degradation upstream affects the trophic status of the lake, triggering the risk of environmental disasters. Integrated lake management is a form of governance to achieve sustainable development goals. This study aims to analyze the implementation of the Rawapening Lake management program plan spatially by considering the environmental risk conditions of the Rawapening catchment area. Semi-quantitative analysis is used to assess the level of disaster risk in Rawapening catchment area. The zoning results of environmental disaster risk areas are used as the basis for the implementation of the 2019 Rawapening lake management plan descriptively. The results showed that Rawapening catchment area has a very low, low, medium, high, and very high risk levels. Panjang Sub Watersheds, Galeh Sub Watersheds, Parat Sub Watersheds, Sraten Sub Watersheds have a high to very high risk level. The Rengas Sub Watershed, Torong Sub Watershed falls into the medium risk category. Low to very low risk levels are scattered in the Legi Sub Watershed, the Kedung Ringis Sub Watershed, and the Ringis Sub Watershed. The complexity of the problems in the agricultural, livestock, residential and industrial sectors is the main contributor to sediment and pollutants in the lake system. The integration of upstream and downstream processes is used as a consideration in conducting spatial planning for Rawapening Lake management to achieve management objectives. Keywords: environmental disaster; eutrophication; landscape management ABSTRAKKeseimbangan ekosistem danau dipengaruhi oleh interaksi dan interelasi proses hulu dengan hilir DAS. Degradasi lingkungan di bagian hulu berpengaruh terhadap status trofik danau, memicu resiko bencana lingkungan. Pengelolaan danau secara terpadu merupakanwujud tata kelola untuk mencapai tujuan pembangunan berkelanjutan. Penelitian ini bertujuan untuk menganalisis implementasi rencana program pengelolaan Danau Rawapening secara spasial dengan mempertimbangkan kondisi resiko bencana lingkunganSub DAS Rawapening. Analisis semi kuantitatif digunakan untuk menilai tingkat resikobencana Sub DAS Rawapening. Hasil zonasi kawasan resiko bencana lingkungan dijadikandasar dalam impelementasi Rencana Pengelolaan Danau Rawapening Tahun 2019 secaradeskriptif. Hasil penelitian menunjukkan Sub DAS Rawapening memiliki tingkat resiko sangatrendah, rendah, sedang, tinggi, dan sangat tinggi. Sub Sub DAS Panjang, Sub Sub DAS Galeh,Sub Sub DAS Parat, Sub Sub DAS Sraten memiliki tingkat resiko tinggi hingga sangat tinggi.Sub Sub DAS Rengas, Sub Sub DAS Torong masuk ke dalam kategori resiko sedang. Tingkatresiko rendah hingga sangat rendah tersebar pada Sub Sub DAS Legi, Sub Sub DAS KedungRingis, Sub Sub DAS Ringis. Kompleksitas permasalahan dalam sektor pertanian, peternakan,permukiman dan industri menjadi penyumbang utama sedimen dan polutan pada system danau. Integrasi proses hulu dengan hilir dijadikan sebagai pertimbangan dalam melakukan perencanaan spasial pengelolaan Danau Rawapening untuk mecapai tujuan pengelolaan.Kata kunci: bencana lingkungan; eutrofikasi; pengelolaan lanskap
VARIASI TEKNIK SYNTHETIC APERTURE RADAR (SAR) UNTUK REKONSTRUKSI GEOLOGI KABUPATEN PIDIE JAYA PROVINSI ACEH Muhammad Budi; Hartono Hartono; Djati Mardiatno
Jurnal Arsip Rekayasa Sipil dan Perencanaan Vol 2, No 2 (2019): Jurnal Arsip Rekayasa Sipil dan Perencanaan
Publisher : Prodi Magister Teknik Sipil Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jarsp.v2i2.13778

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Geology information has an important role in development planning in Indonesia especially in physical development so that it needs to be well laid out in order to give the complete information. The objectives of the study are: First, integrating result of the SAR technique processing to image fusion technique to identify geological structure, landform and litology in Pidie Jaya region, Aceh province and Second, testing ability of SAR technique and image fusion technique in geology reconstruction in Pidie Jaya region. This study was done in most parts of Pidie Jaya and Pidie region using the main data that were Sentine-1A with VH polarization and Landsat 8 OLI with 567 composite. The methods used are digital image processing and field observation. Digital image processing uses some techniques including: SAR technique (calibration, multilook, deburst, median speckle filtering, geometric correction), InSAR tecnique to create DEM, HSV image fusion and directional spatial filter techniques (3x3 and 5x5 windows) to identify landform, geological structure and litology through visual interpretation. Field observation was done through strike and dip measuring with purposive sampling method. Results of HSV fusion technique visual interpretation can identify structural landform, volcanic landorm, fluvial landform, drainage patterns and litology. Results of directional filter visual interpretation can identify lineament, fault and fold. Geological structure in study region has dominant direction South West – North East or 42.4o – 223.63o. The study region is dominated by structural landform with an area of 555.39 km2 or 59.56 % of study area total with accuration 86.04 %. Litology which dominates in study area is sandstone with an area of 571.78 km2 or 61.31 % of study area total with accuration 82.93 %.
Pengelolaan Wilayah Pesisir Berbasis Pengurangan Risiko Bencana Gempabumi dan Tsunami di Kabupaten Kulon Progo Daerah Istimewa Yogyakarta Despry Nur Annisa; Djati Mardiatno; Dyah Rahmawati Hizbaron
Journal of Civil Engineering and Planning (JCEP) Vol 2 No 1 (2021)
Publisher : Program Studi Sarjana Teknik Sipil Universitas Internasional Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37253/jcep.v2i1.4262

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This study discussed about management of coastal area in Kulon Progo Regency based on the risk of the earthquake and tsunami. The aim of this study was to identify potential hazard earthquake and tsunami, analyze the suitability of using land exists to spatial pattern planning, and describe direction of management area’s coastal based on reduction of earthquake and tsunami risk in Kulon Progo Regency. Data was used in this study was information about earthquake and tsunami occurrence obtained from the government institution and also United States Geological Survey (USGS), satelite imagary from digital globe. Data of spatial policy which was used in this study were document of Area Spatial Planing, Coastal Zoning Plan, and small islands at study site. Analyzer used in this study were spatial analyzis, peak ground acceleration analyzis, cross tabulation, and descriptive-qualitative. The result of this study showed that coastal’s area in Kulon Progo Regency categorized as having a medium earthquake with PGA value 134, 754 gal and a high tsunami potential with an area of 7702, 614 Ha. The results of the assessment of the conformity of existing land use in 2016 to the spatial plan in the document of Coastal Zoning Plan of Kulon Progo Regency in 2014-2034 tends to show high deviation of space with the extent of using land mismatch of 10399,139 Ha of the total area of research. Based on that, the direction of coastal management of Kulon Progo Regency has five management scenarios, namely; (1) scenario a-1 in the form of early warning and direction of high population density; (2) b-I scenario in the form of early warning, mitigation, and direction of high population density; (3) b-II scenario in the form of warning, mitigation, and direction of medium population density; (4) b-III scenario in the form of early warning, mitigation, and low population density direction; and (5) scenario c-III in the form of early warning, mitigation, preparedness and low population density directive.
Co-Authors Ahmad Fauzan Adzima Ahmad Maryudi Airawati, Maria Nooza Alimuddin, Askiyamin Amelia Fitri Ardiati, Aulia Syifa Arry Retnowati Arysandi, Safira Arum Bakti Setiawan Baru, Maria Theresia Firmina Bevaola Kusumasari Christanto, Nugroho Dandun Wacono Deasy Arisanty Denni Susanto Despry Nur Annisa Despry Nur Annisa Dewi Haryani Susilastuti, Dewi Haryani Dian Pertiwi Dina Ruslanjari Djarot Sadharto Djarot Sadharto Dulbahri Dulbahri Dwi Wahyu Arifudiin Najib Dyah Rahmawati Hizbaron Dzakwan Taufiq Nur Muhammad Dzakwan Taufiq Nur Muhammad Eka Wulandari Eko Haryono Evita Hanie Pangaribowo Faiq, Muhammad Faridah Faridah Febriani, Yenni Ferry Dwi Cahyadi Gerarda Orbita Ida Cahyandari Hafiz Fatah Nur Aditya Hairil Adzulyatno Hadini Hanifa, Syifa Hardhoni, Wildhan Dayu Hartono Hartono Hastiwi, Antika Heni Herjuna Wiratama Hizbaron, Dyah Rahmawati Hogy Prima Valeda Ibnu Fauzi Ilham satria Jamulya Jamulya Jayawarsa, A.A. Ketut Johann Stotter Junun Sartohadi Kartini Ali Kelik Eko Susanto Laksono Trisnantoro Lies Rahayu W.F M. Anggri Setiawan M. Anggri Setiawan M. Anggri Setiawan M. Ngainul Malawani Mahron, Hayu Nur Malawani, Mukhamad Ngainul Mar'ath, Sitti Khafifatul Marfai, Muhamad Aris Maria Nooza Airawati Maria Theresia Firmina Baru Maulida Rahmi Mohammad Pramono Hadi Muh Aris Marfai Muh Aris Marfai Muhammad Anggri Setiawan Muhammad Aris Marfa'i Muhammad Budi Muhammad Fauzan Ramadhan Muhammad Rizky Shidiq Nugraha Muhammad, Dzakwan Taufiq Nur Muharram, Fajrun Wahidil Mukhamad Ngainul Malawani Mutaqin, Bachtiar W. Mutaqin, Bachtiar Wahyu Muta’ali, Lutfi Nehren, Udo Nisaa', Ratri Ma'rifatun Noorhadi Rahardjo Novian Andri Akhirianto NURUL HIDAYAH Nurul Khakhim Nurul Khakhim Nurul Khakhim Nurul Khakim Nurwihastuti, Dwi Wahyuni Nuswantara, Galang Riswanda Oktomi Wijaya Pamungkas, Bagus Purboyo, Alvian Aji Rahma, Ayu Dyah Rahmi, Maulida Ratri Ma'rifatun Nisaa' Rhosadi , Iwan Rini Rachmawati Safinatunnajah, Safinatunnajah Samodra, Guruh Saragi, Andes Sari, Nila Puspita Satyaningrum, Aghnia Candra Setiawan, M. Anggri Setiawan, Muhammad Anggri Setiawan, Nicky Sri Rum Giyarsih Suanrto Sunarto Sudrajat Sudrajat Suhendro, Indranova Sunarno Sunarno Sunarto Sunarto Suratman Suratman Suratman Suratman Suratman Worosuprojo Syafitri, Dyah Rina Tiara Handayani Tilova, Ulfa Della Nova Tjahyanityasa, Wanda Fitri Toto Cahyono Totok Wahyu Wibowo Tri Wahyuni, Yubaidah Valentina Arminah W, Lies Rahayu Wildhan Dayu Hardhoni Wiratama, Herjuna Yuli Widyaningsih