Effect of Hydrological Data on Flood Management in Urban Areas

2021 ◽  
Vol 6 (7) ◽  
pp. 164-168
Author(s):  
. Sumiharni ◽  
Lusmeilia Afriani
Keyword(s):  
Urban Areas ◽  
Flood Control ◽  
Flood Management ◽  
Water Levels ◽  
Water Runoff ◽  
Hydrological Data ◽  
Average Rainfall ◽  
Drainage Channels ◽  
Control Research ◽  
Normal Rainfall

Floods can occur due to rising water levels due to above-normal rainfall, changes in temperature, broken embankments/dams, rapid snowmelt, obstruction of water flow in other places, and putting people at risk of annual disasters due to flooding. The purpose of this study was to obtain a more detailed description of hydrological conditions so that flooding in the Bandar Lampung urban area can be optimally managed or controlled. The method used in flood control research is the analysis of the calculation of the average rainfall in the watershed, and the calculation of the planned discharge. The results of the analysis show that the existing drainage channels that have been carried out for each channel point have dimensions that are not large enough so that they are not sufficient to accommodate water runoff. so that for a 5-year discharge of 28.058 m3/s, the dimensions of the channel are 3 m wide and 2.6 m deep and for a 10-year discharge of 30.609 m3/s, the channel dimensions are 3.1 m wide and 2.7 m deep.

scholarly journals Evaluasi Sistem Drainase Menggunakan Storm Water Management Model (SWMM) dalam Mencegah Genangan Air di Kota Tarakan

2020 ◽  
Vol 3 (2) ◽  
pp. 143-154
Author(s):  
Rahmat Faizal ◽  
Noerman Adi Prasetya ◽  
Zikri Alstony ◽  
Aditya Rahman
Keyword(s):  
Water Management ◽  
Urban Areas ◽  
Storm Water ◽  
Management Model ◽  
Economic Losses ◽  
Water Runoff ◽  
Runoff Simulation ◽  
Storm Water Management ◽  
Storm Water Management Model ◽  
Drainage Channels

Tarakan City experiences problems with standing water during the rainy season, especially in the west Tarakan sub-district which is the center of Tarakan. This puddle not only submerged settlements and offices but also shops and access roads that caused considerable economic losses. An evaluation was carried out by using the Storm Water Management Model (SWMM). SWMM is a rainfall-runoff simulation model used for simulating the quantity and quality of surface runoff from urban areas. Based on the evaluation using SWMM software, the drainage system in Tarakan, especially in Jalan Mulwarman has several inundated channels, namely channels 2, 3, 4, 5, 6, 7, 11, 12, 13, 14. This is influenced by the dimensions of the drainage channel that cannot accommodate existing water runoff and sediment thickness that covers the drainage channels so that the capacity is reduced, if it rains it will cause puddles at several points in Tarakan City. In order to deal with these puddles, it is necessary to change the dimensions of the channel and routinely dredge sediments that cover the drainage channels.

scholarly journals INSTITUTIONAL COORDINATION OF FLOOD CONTROL AT MEDAN CITY IN MEBIDANGRO COOPERATION SCHEME

2021 ◽  
Vol 23 (3) ◽  
pp. 391
Author(s):  
Muhammad Husni Thamrin ◽  
Hatta Ridho ◽  
Faiz Albar Nasution
Keyword(s):  
Flood Control ◽  
Secondary Data ◽  
Flood Management ◽  
Visionary Leadership ◽  
Primary Data ◽  
Urban Flood ◽  
Analysis Techniques ◽  
Drainage Channels ◽  
Control Institution ◽  
Support Research

Flood management system in Medan City is very poor, because there is no institutional coordination resulting from sectoral egos. Effective institutional coordination in urban flood management is needed. Condition is based on problem of flooding in Medan City which has not been effectively implemented, so an alternative solution for integrated urban flood management is needed. Purpose of this research is to explain implementation of flood control policies in Medan City and how coordinate flood control institutions in Medan City in Mebidangro cooperation scheme. This type of qualitative research with descriptive methods is used in this research. Primary data collection techniques with deep interviews through FGD activities with stakeholders. In addition, secondary data is collected by citing journals, books, documents, online media, and other materials support research. Data analysis techniques are carried out through data reduction activities, data display and drawing conclusions. Results showed implementation Presidential Regulation No. 62 of 2011 on flood control in Medan City has not been optimally implemented. Condition is influenced lack of understanding authority and lack of coordination between related agencies to safeguard river basins, river norms and establish primary drainage channels. In addition, coordination of Medan City flood control institution in Mebidangro cooperation scheme has been carried out in a procedural manner. However, actualization still requires visionary leadership and command to support success program.

scholarly journals Efficient GIS-based model-driven method for flood risk management and its application in central China

2013 ◽  
Vol 1 (2) ◽  
pp. 1535-1577 ◽  
Author(s):  
Y. Liu ◽  
J. Z. Zhou ◽  
L. X. Song ◽  
Q. Zou ◽  
J. Guo ◽  
...  
Keyword(s):  
Risk Management ◽  
Decision Support ◽  
Flood Risk ◽  
Flood Control ◽  
Flood Management ◽  
Flood Risk Management ◽  
Central China ◽  
Tight Coupling ◽  
Model Driven ◽  
Control Research

Abstract. In recent years, an important development in flood management is a focal shift from flood protection towards flood risk management. This change greatly promoted the progress of flood control research by the multidisciplinary way. Moreover, given the growing complexity and uncertainty in many decision situations of flood risk management, traditional methods, e.g. tight-coupling integration of one or more quantitative models, are not enough to provide decision support for managers. Within this context, this paper presents a beneficial approach for dynamic adaptation of support to the needs of the decision maker. The overall methodology combines various engineering and geoinformation methods to analyse flood risk as well as calculate major damage processes. The main innovation is the application of model-driven concepts, which are promising for loose-coupling of GIS and multidisciplinary models. This paper defines the new system as Model-driven Decision Support System (MDSS) and proposes its framework. Two characteristics differentiate the MDSS are as follows: (1) it is made accessible to a non-technical specialist and (2) it has a higher level of adaptability and reusability. Furthermore, the MDSS was employed to manage the flood risk in Jingjiang flood diversion area, located in central China near the Yangtze River. Compared with traditional solutions, we believe that this model-driven method is reasonable, reliable and flexible, thus has bright prospects of application for comprehensive flood risk management.

scholarly journals Penyajian Data Hidrologi Tersebar di Sulawesi Selatan dengan Menggunakan Sistem Informasi Geografis (SIG)

2017 ◽  
Vol 4 (2) ◽  
pp. 122
Author(s):  
Zulvyah Faisal ◽  
Muhammad Taufik Iqbal
Keyword(s):  
Flood Control ◽  
Educational Institution ◽  
River Management ◽  
Water Levels ◽  
Climate Data ◽  
Digital Map ◽  
Resources Management ◽  
The Public ◽  
Hydrological Data ◽  
South Sulawesi

Hydrological data is the data that became the basis of planning activities Water Resources Management (SDA) in the river area, such as irrigation building planning, water building, river management, flood control and others. Therefore, hydrological data needs to be managed into a geographic information system to provide accurate, true and timely SDA information for all interested parties. By knowing the position of climate observation post and rain station along with the climatic and rainy data, which can be observed by the public, it is expected that the control over the implementation of development can be done more openly. The results obtained from this research are digital map position of observation post along with climate data, water level and rainfall along with South Sulawesi Province that can be used by public, government, and educational institution that need location of station position and data recording climate observations, water levels and rainfall in South Sulawesi.

scholarly journals A Study on Setting Disaster-Prevention Rainfall by Rainfall Duration in Urban Areas Considering Natural Disaster Damage: Focusing on South Korea

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 642
Author(s):  
Youngseok Song ◽  
Moojong Park
Keyword(s):  
Urban Areas ◽  
Flood Control ◽  
Disaster Mitigation ◽  
Disaster Prevention ◽  
Time Duration ◽  
Rainfall Duration ◽  
Rainfall Frequency ◽  
Urban Disaster ◽  
Average Rainfall ◽  
Urbanization Rate

Inundation damage occurs in urban regions due to short flood reach time and increased surface runoff caused by urbanized impervious areas. Furthermore, heavy rainfall frequency has increased because of climate change, thus exceeding the design frequency and resulting in sewer pipes’ lack of flood control capacity, with damage expanding from low-lying areas. Despite many urban disaster-mitigation policies, complex causes and uncertainties make reducing urban inundation damage difficult. This study established a rainfall-related disaster-prevention standard by time duration considering rainfall characteristics targeting urban disaster-induced inundation damage. Based on the South Korean urbanization rate and population, seven target regions were selected. Rainfall by time duration was analyzed with respect to disaster length (number of days) from 2010–2017. The average rainfall for durations from 1–24 h were analyzed according to disaster length (1–13 days). Using the results, an equation was proposed for rainfall estimation by length of disaster resulting in urban inundation damage, through multiple regression analysis. An equation was developed for rainfall-related disaster-prevention in urban areas considering the length of disaster and rainfall duration. This was accomplished by selecting a duration whereby the average rainfall of duration corresponded to 50% of total rainfall during the disaster period.

scholarly journals Efficient GIS-based model-driven method for flood risk management and its application in central China

2014 ◽  
Vol 14 (2) ◽  
pp. 331-346 ◽  
Author(s):  
Y. Liu ◽  
J. Zhou ◽  
L. Song ◽  
Q. Zou ◽  
J. Guo ◽  
...  
Keyword(s):  
Risk Management ◽  
Decision Support ◽  
Flood Risk ◽  
Flood Control ◽  
Flood Management ◽  
Flood Risk Management ◽  
Central China ◽  
Tight Coupling ◽  
Model Driven ◽  
Control Research

Abstract. In recent years, an important development in flood management has been the focal shift from flood protection towards flood risk management. This change greatly promoted the progress of flood control research in a multidisciplinary way. Moreover, given the growing complexity and uncertainty in many decision situations of flood risk management, traditional methods, e.g., tight-coupling integration of one or more quantitative models, are not enough to provide decision support for managers. Within this context, this paper presents a beneficial methodological framework to enhance the effectiveness of decision support systems, through the dynamic adaptation of support regarding the needs of the decision-maker. In addition, we illustrate a loose-coupling technical prototype for integrating heterogeneous elements, such as multi-source data, multidisciplinary models, GIS tools and existing systems. The main innovation is the application of model-driven concepts, which put the system in a state of continuous iterative optimization. We define the new system as a model-driven decision support system (MDSS ). Two characteristics that differentiate the MDSS are as follows: (1) it is made accessible to non-technical specialists; and (2) it has a higher level of adaptability and compatibility. Furthermore, the MDSS was employed to manage the flood risk in the Jingjiang flood diversion area, located in central China near the Yangtze River. Compared with traditional solutions, we believe that this model-driven method is efficient, adaptable and flexible, and thus has bright prospects of application for comprehensive flood risk management.

scholarly journals Edukasi Guru SD Kaligawe Semarang sebagai Upaya Peningkatan Partisipasi Masyarakat dalam Pemeliharaan Infrastruktur Pengendali Banjir

2021 ◽  
Vol 3 (1) ◽  
pp. 10
Author(s):  
Henny Pratiwi Adi ◽  
Slamet Imam Wahyudi ◽  
Hermin Poedjiastoeti
Keyword(s):  
School Environment ◽  
Flood Control ◽  
Drainage System ◽  
Flood Management ◽  
Disaster Mitigation ◽  
Retention Ponds ◽  
Drainage Channels ◽  
Post Test ◽  
Flood Control Infrastructure ◽  
The Government

Kaligawe merupakan salah satu daerah rawan banjir di Kota Semarang. Kawasan Kaligawe termasuk dalam Sub Sistem Kali Tenggang. Penanganan terhadap banjir di Kaligawe telah dilakukan oleh pemerintah berupa normalisasi sungai dan pembangunan sistem polder sebagai bagian dari sistem drainase. Untuk menjamin keberlanjutan pengelolaan sistem drainase, diperlukan keterlibatan seluruh stakeholders, termasuk partisipasi masyarakat yang bertempat tinggal di dalamnya. Di wilayah Kaligawe, ada beberapa bangunan infrastruktur pengendali banjir seperti kolam retensi, rumah pompa, pintu gerak dan saluran drainase. Bangunan infrastruktur tersebut dapat terganggu fungsinya bila masyarakat tidak peduli, seperti membuang sampah di saluran drainase, merusak kolam retensi, mengambil/mencuri peralatan di rumah pompa dan lain sebagainya. Oleh sebab itu warga di kawasan tersebut perlu mendapatkan edukasi bagaimana hidup di lingkungan sistem polder. Sekolah Dqsar (SD) Kaligawe berada di wilayah Kaligawe, dimana para guru perlu diberikan edukasi agar dapat ikut berpartisipasi dalam pemeliharaan bangunan infrastruktur pengendali banjir. Edukasi yang akan diberikan meliputi pemahaman tentang penyebab dan dampak banjir di Semarang, penanganan banjir dan bangunan infrastruktur pengendali banjir di sekitar sekolah serta mitigasi bencana dan konsep Sekolah Siaga Bencana (SSB). Hasil pre-test terhadap guru, menunjukkan bahwa guru-guru di SD Kaligawe masih banyak yang tidak memahami bangunan pengendali banjir yang ada di sekitar lingkungan kerja mereka. Melalui edukasi yang diberikan dalam penyuluhan, guru-guru bisa memahami peran yang harus dilakukan dalam menjaga keberlangsungan bangunan pengendali banjir. Hasil post-test menunjukkan tingkat pemahaman yang meningkat pada guru-guru terhadap pengendalian banjir di wilayah Kaligawe.Kaligawe is one of the flood areas in the city of Semarang. Kaligawe area is included in the Kali Tenggang Sub-System. The government has handled floods in the area in the form of river normalization and construction of a polder system as part of the drainage system. To ensure the sustainability of the drainage system management, it requires the involvement of all stakeholders, including the participation of the people who live in it. In the Kaligawe area, there are several flood control infrastructure buildings such as retention ponds, pump houses, mobile gates and drainage channels. The function of these infrastructure buildings can be disrupted if the community does not care, such as throwing garbage in the drainage channels, damaging retention ponds, taking / stealing equipment at pump houses and so on. Therefore, residents in the area need to get education on how to live in a polder system environment. SD Kaligawe is located in Kaligawe area, where teachers need education in order to participate in the maintenance of flood control infrastructure. The education that will be provided includes understanding the causes and impacts of floods in Semarang, flood management and building flood control infrastructure as well as disaster mitigation and the concept of Disaster Alert School (SSB). The results of the pre-test conducted in this study showed that many teachers at SD Kaligawe did not understand the flood control buildings that were around their school environment. Through the education provided in counseling, teachers can understand the role that must be played in maintaining the sustainability of flood control buildings. The results of the post test showed an increased level of teachers on understanding of flood control in the Kaligawe area.

scholarly journals The simulation model for a flood management by flood control facilities

2018 ◽  
Vol 245 ◽  
pp. 15002 ◽  
Author(s):  
Roman Davydov ◽  
Valery Antonov ◽  
Dmitry Molodtsov ◽  
Alexey Cheremisin ◽  
Vadim Korablev
Keyword(s):  
Mathematical Models ◽  
Flood Control ◽  
Flood Management ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Operating Characteristics ◽  
Hydro Power ◽  
Operation Modes ◽  
Wide Range ◽  
Environmental Requirements

The rapid spread of storm floods over large areas requires flood management throughout the river basin by the creation an innovative system of flood control facilities of various functional purposes distributed in the area. The central part of the system is the hydro system with hydro power plant. In addition, the flood control facilities on the side tributaries with self-regulating reservoir are included in the system. To assess the effect of controlling extreme water discharges by flood control facilities, it is necessary to develop special mathematical models reflecting the specifics of their operation. Unified mathematical models of the operation modes of a hydro complex with hydroelectric power station and flood control facility are created. They are implemented in a computer program that provides the ability to determine the main parameters and operating characteristics of hydro systems when performing multivariate calculations in a wide range of initial data. This makes possible specifying the parameters and operation modes of each hydro system with the current economic and environmental requirements, to assess the energy-economic and environmental consequences in the operation of the system of flood control facilities distributed in the area. The article analyses the results of the extreme water discharge’s regulation by the hydro system on the main river and flood control facilities on the side tributaries, considering environmental requirements.

scholarly journals A Study on Urban Inundation Using SWMM in Busan, Korea, Using Existing Dams and Artificial Underground Waterways

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1708
Author(s):  
Yeon-Moon Choo ◽  
Sang-Bo Sim ◽  
Yeon-Woong Choe
Keyword(s):  
Climate Change ◽  
Urban Areas ◽  
Flood Damage ◽  
Virtual Model ◽  
Sustainable Cities ◽  
Annual Average ◽  
New Methods ◽  
Average Rainfall ◽  
Reduction Methods ◽  
Urbanized Areas

The annual average rainfall in Busan area is increasing, causing frequent flooding of Busan’s Suyeong and Oncheon rivers. Due to the increase in urbanized areas and climate change, it is difficult to reduce flood damage. Therefore, new methods are needed to reduce urban inundation. This study models the effects of three flood reduction methods involving Oncheon River, Suyeong River, and the Hoedong Dam, which is situated on the Suyeong. Using EPA-SWMM, a virtual model of the dam and the rivers was created, then modified with changes to the dam’s height, the installation of a floodgate on the dam, and the creation of an underground waterway to carry excess flow from the Oncheon to the Hoedong Dam. The results of this study show that increasing the height of the dam by 3 m, 4 m, or 6 m led to a 27%, 37%, and 48% reduction in flooding, respectively, on the Suyeong River. It was also found that installing a floodgate of 10 × 4 m, 15 × 4 m, or 20 × 4 min the dam would result in a flood reduction of 2.7% and 2.9%, respectively. Furthermore, the construction of the underground waterway could lead to an expected 25% flood reduction in the Oncheon River. Measures such as these offer the potential to protect the lives and property of citizens in densely populated urban areas and develop sustainable cities and communities. Therefore, the modifications to the dam and the underground waterway proposed in this study are considered to be useful.

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