scholarly journals Perbandingan Perkiraan Debit Puncak Banjir Menggunakan Metode Nakayasu dan Metode FSR Jawa Sumatera untuk DAS Dombo Sayung

2020 ◽  
Vol 5 (2) ◽  
pp. 38
Author(s):  
Muhammad Syarifudin ◽  
Karuniadi Satrijo Utomo
Keyword(s):  
Natural Disaster ◽  
Rainy Season ◽  
Rainfall Data ◽  
Disaster Mitigation ◽  
Material Loss ◽  
Public Facilities ◽  
Flood Discharge ◽  
The Impact ◽  
Detrimental Impact ◽  
Peak Flood

Banjir merupakan salah satu bentuk bencana alam yang hingga saat ini masih belum dapat diselesaikan. Dampak banjir tidak hanya kerugian infrastruktur berupa jalan dan fasilitas umum akan tetapi kerugian materil menjadi bagian dari dampak yang merugikan bagi masyarakan. Padahal, bagi sebagian warga di Semarang dan Kabupaten Demak, banjir menjadi persoalan rutin pada musim penghujan. Daerah yang menjadi langganan banjir di Demak yaitu daerah Sayung, Karang Asem dan Mranggen. Banjir di daerah tersebut sulit diatasi bahkan semakin lama persoalan banjir tersebut semakin parah dan meluas. Dengan demikian penelitian ini bertujuan untuk mengetahui perbandingan perkiraan debit puncak banjir melalui dua metode yang berbeda. Berdasarkan pada hasil maka mitigasi bencana juga dapat ditingkatkan. Metode dalam penelitian ini menggunakan metode Nakayasu dan FSR Jawa Sumatera untuk mengukur debit puncak banjir dengan menggunakan rentang data curah hujan 10 tahun. Adapun hasil analisis menunjukkan bahwa debit banjir yang dianalisis dengan menggunakan metode Nakayasu menghasilkan debit banjir lebih besar daripada analisis debit banjir menggunakan FSR Jawa Sumatera. Hasil analisis dengan menggunakan metode Nakayasu diperoleh nilai terbesar untuk Sungai Penggaron 270,4 m3/detik. Sungai Dombo Sayung 296,4 m3/detik dan Sugai Dolok 332,2 m3/detik. Adapun, untuk Metode FSR Jawa Sumatera diperoleh nilai terbesar untuk Sungai Penggaron 112,7 m3/detik. Sungai Dombo Sayung 239,7 m3/detik dan Sugai Dolok 632,1 m3/detik.Kata kunci : debit banjir; dombo sayung; FSR Jawa Sumatera; nakayasu ABSTRACTFlooding is a form of natural disaster that has yet to be resolved. The impact of flooding is the loss of infrastructure in roads and public facilities, but a material loss is part of the community's detrimental impact. For some residents in Semarang and Demak Regency, flooding is a routine problem during the rainy season. Areas that are regularly flooded in Demak are Sayung, Karang Asem, and Mranggen. Floods in the area are challenging to overcome, even if flooding is getting worse and broader. Thus this study aims to determine the comparison of the estimated peak flood discharge through two different methods. Based on the results, disaster mitigation can also be improved. This study used Nakayasu and Java Sumatera FSR to measure the peak flood discharge using a ten-year rainfall data range. The analysis results show that the flood discharge analyzed using the Nakayasu method produces a more massive flood discharge than the flood discharge analysis using the Java Sumatra FSR. The analysis results using the Nakayasu method obtained the most significant value for the Penggaron River 270.4 m3/second. Sungai Dombo Sayung 296.4 m3/second and Sugai Dolok 332.2 m3/second. Meanwhile, for the Java Sumatra FSR Method, the most significant value was obtained for the Penggaron River 112.7 m3/second. Sungai Dombo Sayung 239.7 m3/second and Sugai Dolok 632.1 m3/second.

scholarly journals PERENCANAAN KONSTRUKSI PENGENDALI SEDIMEN (CHEKDAM) DI HILIR KALI PACAL BOJONEGORO

2019 ◽  
Vol 14 (2) ◽  
pp. 28
Author(s):  
Harjono Harjono ◽  
Yulis Widhiastuti
Keyword(s):  
Cross Section ◽  
Water Reservoir ◽  
Rice Fields ◽  
Check Dam ◽  
Calculation Methods ◽  
Natural Conditions ◽  
Industrial Areas ◽  
Public Facilities ◽  
Flood Discharge ◽  
The Impact

<p>Meeting the needs and maintaining the availability of water is an effort where a situation where the area is usually not run by water such as settlements, industrial areas, and other public facilities. This situation is considered to be detrimental to both morally and materially, the impact of which will directly be felt by humans. Therefore humans must balance between needs and natural conditions.</p><p>Please note that the Klepek Dam is one of the buildings that functions as a water reservoir after the Pacal Reservoir for irrigation needs in the rice fields. To realize the success of quality Dam buildings and able to function as planned, it is needed by making check dam using concrete consumption.</p>From studies and calculations that have been done using software, AutoCad, and Harpes calculation methods, it is known the impact of flood discharge and cross section in the Lusi watershed to determine whether or not the cross section of the Pacal Reservoir is necessary. The problem of holding water in the Pacal Reservoir is overcome by making check dam using concrete consumption

scholarly journals Mitigasi Bencana Alam di Kek Tanjung Lesung, Sudahkah Hyogo Framework for Action Diterapkan?

Kosmik Hukum ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 1
Author(s):  
Natalia Yeti Puspita
Keyword(s):  
Natural Disasters ◽  
Natural Disaster ◽  
Disaster Management ◽  
Tourism Industry ◽  
Disaster Mitigation ◽  
Primary Data ◽  
Economic Losses ◽  
Hyogo Framework For Action ◽  
The Government ◽  
The Impact

The threat of natural disasters in Indonesia can occur at any time and has caused suffering for humanity. The tourism industry also feels the impact and consequences of natural disasters. Tsunami on the coast of Banten at the end of 2018 has caused economic losses of up to hundreds of billions in the tourism sector. Mitigation of natural disasters, especially in the tourism industry, is still lacking the attention of the government. In the disaster management system, the state is the main actor who has full responsibility for dealing with the effects of natural disasters. The Government of Indonesia in 2005 ratified the 2005-2015 Hyogo Framework for Action as the government's guidelines in dealing with natural disasters, especially in the field of natural disaster mitigation. This study examines the implementation of HFA concerning natural disaster mitigation in the Special Economic Zone of Tanjung Lesung-Banten, and Cikadu Tourism Village Community. Socio-legal research is used as a research method and uses qualitative data analysis that is analytical descriptive and emphasizes primary data as the main data. This data was obtained by interview and observation. As for supporting primary data, library research is conducted. Based on the results of the study it can be seen that the Government of Indonesia has implemented the HFA by making Law No. 24 of 2007 concerning Disaster Management, but in practice law enforcement has not been felt by Banten coastal communities other than that there is no habit or cultural awareness of disaster response in the community.

Crisis Management Policy of Natural Disaster

2020 ◽  
Vol 7 (9) ◽  
pp. 183-192
Author(s):  
Aris Sarjito
Keyword(s):  
Natural Disasters ◽  
Crisis Management ◽  
Natural Disaster ◽  
Warning System ◽  
Disaster Mitigation ◽  
Forest Recovery ◽  
Management Policy ◽  
Eurasian Plate ◽  
The Government ◽  
The Impact

Abstract Indonesia is the country that has the most active volcanoes in the entire world. The Eurasian Plate, the Pacific Plate, and the Indo-Australian Plate are three active tectonic plates that cause collision zones to form these volcanoes. Indonesia is estimated to have 129 volcanoes, all of which are carefully monitored by the Centre for Volcanology and Geological Disaster Mitigation. This is done because several volcanoes in Indonesia continue to show activity. Moreover, it is estimated that more than five million people live in the "danger zone" of a volcano where they must be immediately evacuated if the mountain shows significant upward activity (Indonesia-Investment, 2019). However, efforts to reduce the risk of natural hazards remain largely uncoordinated in different types of hazards and do not necessarily focus on areas with the highest disaster risk. This paper uses a descriptive qualitative approach as the main writing approach and uses crisis management theory by Rosenthal, that crisis management involves efforts: (1) to prevent a crisis from occurring; (2) to prepare better protection against the impact of crisis agents; (3) to make effective responses to the actual crisis; and (4) to provide plans and resources for post-crisis recovery and rehabilitation. The results of this study are: (1) to accelerate forest recovery, the government can engage the community with security and welfare approach; (2) natural disaster management is the main responsibility of the government; (3) In crises due to natural disasters, form a team that is responsive to critical situations. This team was formed by involving government agencies, community leaders, and NGOs; and (4) to increase the government's capacity to reduce the impact of natural disasters, assessment of potential damage, the establishment of an early warning system, and the improvement of disaster-resistant capabilities are needed. Keywords: Crisis Management; Natural Disaster; Policy.

scholarly journals Flood discharge analysis of Brang Ode River as a disaster mitigation effort in Kalimango Village

2021 ◽  
Vol 331 ◽  
pp. 08004
Author(s):  
Imam Solihin Al-Abbas ◽  
Eko Pradjoko ◽  
Heri Sulistiyono
Keyword(s):  
Data Accuracy ◽  
Peak Discharge ◽  
Disaster Mitigation ◽  
Flood Inundation ◽  
Raster Data ◽  
Village Community ◽  
Inundation Area ◽  
Flood Discharge ◽  
Mitigation Effort ◽  
Peak Flood

Flood is a hydrometeorological disaster that often occurs in West Nusa Tenggara, especially in the Brang Ode River, Kalimango Village, Alas District, Sumbawa Regency. One of the worst floods ever happened was on December 12th, 2016, which caused several villages to be inundated and houses along the river to wash away. This study aims to obtain the peak discharge from the worst flood that has ever occurred. This model is simulated using HEC-RAS 5.0.7 and QGIS for mapping the flood inundation area. Terrain data used DEMNAS. The peak discharge is obtained from the modeling results based on the flood inundation area, validated with the flood map from the DESTANA (disaster resilient village) Community of Kalimango Village. The modeling results showed that the peak flood discharge is 950 m3/s, with the inundation area 150,752.07 m2. The actual peak flood discharge can be smaller or larger than the modeling results. It may be affected by the DEMNAS raster data accuracy.

scholarly journals Estimated Flood Discharge in Downstream Krueng Meureubo of Pasi Pinang Section West Aceh Regency

2021 ◽  
Vol 1 (1) ◽  
pp. 41-45
Author(s):  
Muhammad Ikhsan ◽  
Rinaldy Rinaldy
Keyword(s):  
Rainy Season ◽  
Catchment Area ◽  
Local Community ◽  
Rapid Development ◽  
High Rainfall ◽  
Flood Discharge ◽  
Main River ◽  
Almost All ◽  
The Village ◽  
Peak Flood

The phenomenon of floods in Indonesia has become a routine thing that happens every year, almost all areas that are lowlands often flood when the rainy season arrives. Flooding is caused by high rainfall where the ability of the soil to absorb water decreases along with the rapid development of land that was once a rainwater catchment area, consequently surface runoff becomes high. Pasi Pinang Village can be categorized as a very flood prone village in Meureubo Subdistrict, due to the low condition of this village and directly borders the Meureubo river. Many adverse effects caused by floods and cause losses to the local community. The phenomenon of floods in Indonesia has become a routine thing that happens every year, almost all areas that are lowlands often flood when the rainy season arrives. Flooding is caused by high rainfall where the ability of the soil to absorb water decreases along with the rapid development of land that was once an area. In this case a study on flood discharge analysis needs to be done in order to reduce the incidence of flooding in the village of Pasi Pinang. The method used in this study is the Nakayasu HSS method, aim of this study is to determine the amount of flood discharge that occurred in the Krueng Meureubo River Basin in Pasi Pinang Village. Total hydrograph discharge calculated using the Nakayasu HSS method is the watershed area (A) = 1961.53 km, length of main river (L) = 157.02 km, time delay (tg) = 9.507 hours, duration of rain (Tr) = 7 , 13 hours, the time from the beginning of the flood to the peak of the flood hydrograph (tp) = 15.21 hours, the time of discharge 0.3 times the peak flood discharge (t0.3) = 19.01 hours and the peak flood discharge (Qp) = 23.109 m3 / sec then the total hydrograph discharge obtained by the Nakayasu method is equal to = 2040.26 m3/sec.

scholarly journals The Implementation of SETS (Science, Environment, Technology, and Society) Approach Through Flood Natural Disaster Mitigation

2018 ◽  
Vol 2 (1) ◽  
pp. p6
Author(s):  
Sugeng Muslimin ◽  
Iis Yeni Sugiarti ◽  
Yopi Nisa Febianti ◽  
Dian Permana Putri
Keyword(s):  
Data Collection ◽  
Natural Disaster ◽  
Learning Process ◽  
Natural Environment ◽  
Flood Disaster ◽  
Disaster Mitigation ◽  
Technology And Society ◽  
The Impact

Disaster can happen anytime and anywhere, therefore the solutions offered for students' understanding of disaster, one of them is the SETS approach through disaster mitigation. This research aims to determine the learning process and to know the students’ activities, and their responses towards SETS approach through disaster mitigation. This research is a qualitative type with a sample of 37 students. Data collection techniques are the results of observations, questionnaires, interviews, and documentation. The results showed that 90% of students were more active, have the spirit to learn, and the response towards learning is very good. The implementation of SETS approach through mitigation is appropriate to do, because students experience the direct occurrence of flood disaster. With the introduction to disaster mitigation, students can realize the importance of preserving the natural environment and minimize the impact of disasters that can harm the community.

scholarly journals I can still see, hear and smell the fire: Cognitive, emotional and personal consequences of a natural disaster, and the impact of evacuation

2021 ◽  
Vol 74 ◽  
pp. 101554
Author(s):  
Igor Knez ◽  
Johan Willander ◽  
Andrew Butler ◽  
Åsa Ode Sang ◽  
Ingrid Sarlöv-Herlin ◽  
...  
Keyword(s):  
Natural Disaster ◽  
Personal Consequences ◽  
The Impact
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