Measurement and modelling the drainage coefficient for hydraulic design criteria on residential area

Climate change due to weather anomalies causes rainfall and frequency to be more intense than normal conditions, including on the island of Sumatera, Indonesia. This has the potential to cause hydrometeorological disasters, such as floods and landslides. The intensity duration frequency (IDF) is an approach of rainfall amounts in water resources engineering for planning, designing, and operating water resources projects. Therefore, this article aims to conduct a rainfall intensity mapping study for specific return periods using the intensity duration frequency (IDF) approach, a case study of Sumatera Island, Indonesia, with the period of historical rainfall between 2013 and 2022. The purpose of the study is to provide essential reference information to mitigate hydrometeorological disasters to avoid the accumulation of rainwater in disaster-prone areas. The method used is a quantitative study using historical rainfall data from 48 rainfall recording stations in the Sumatera Island area. The results of this study show that the average maximum daily rainfall at nine stations is in the normal category, 39 rain gauge stations are in the standard medium rainfall category, and the rest are in the high category. Maps for each of these conditions are attached as the main results of this study. The practical application of this research has generated disaster vulnerability maps using IDF approaches for Sumatera Island (Indonesia) based on rainfall, emphasizing decreasing and aware activity in these areas.

Section: Calculation Of Rain Intensitymentioning

confidence: 99%

Hydrometeorological Disaster Mitigation Through Rainfall Intensity Mapping Using IDF in Sumatera Island, Indonesia

Susilowati,

Kusumastuti

2024

“…The land use map in the Aceh Tengah regency is presented in Figure 5. According to Sartika et al [30], this map must consider the needs of residential areas (75 m 2 /person) with other needs proportionally. The largest land use is protected forest, with 181,244.60 ha (40.67%) of the total area.…”

Section: Parameter Of Land Usementioning

confidence: 99%

Determination of the Agricultural Land Potential Index Using a Geographic Information System: A Case Study of Aceh Tengah Regency, Indonesia

Devianti¹,

Haryani²,

Munawar³

et al. 2022

Agricultural problems that often arise are due to a lack of suitable and strategic agricultural land for its use, which results in poor agricultural production in the area. A land potential index that classifies existing land potentials from high to low class can be used to overcome this. This study aims to build an agricultural land potential index using a geographic information system in the Regency of Aceh Tengah, Indonesia, using a geographic information system. The method used in this research is a survey approach to collect information in the form of rainfall data, slope, lithology, soil type, land use and administrative maps of the Aceh Tengah Regency. The land potential index is obtained by overlaying the slope parameters, lithology, soil type, hydrology, and susceptibility to erosion into a land map unit that can classify it into five classes of a land potential index. The results of this study indicate that the Regency of Aceh Tengah is included in the very wet climate type. Maximum erosion was 1,213.6 tons per ha per year. The land potential index with very low criteria was 23.38% (102,002.42 ha) with a slope greater than 40%. The land potential index with very high criteria has an area of 3,807.80 ha (0.87%) with a maximum slope of 15%. A land potential index with very high criteria was found in the Linge, Atu Lintang, Lut Tawar, Pegasing, Bintang, Jagong Jeget, Kebayakan, Ketol, and Celala districts with an area of 2,014.26 ha, 1,266.33 ha, 174.81 ha, 148.07 ha, 77.86 ha, 73.63 ha, 46.77 ha, 4.14 ha and 1.94 ha, respectively. Meanwhile, the land potential index with very low criteria is found in all districts except Kute Panang and Atu Lintang.

“…Since its inception in the 1990s, land change research has emerged as a significant component in the study of global environmental change and sustainability. Changes in land use, land cover, and land cover in urban areas, particularly the conversion of farmland and forest land to urban uses, are among the most significant kinds of global environmental change [5,6]. Monitoring land-use changes in urban areas can aid in the decision-making process for urban planning and resource management [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Utilization of a Web-Based Geographic Information System for Land Mapping and Some Its Overview: A Case Study in Sukabumi District, Indonesia

Muslih¹,

Arianti²,

Somantri³

et al. 2022

Land used for residence and agriculture is a source of life, especially in Indonesia. This is because most of the sources of livelihood, especially those living at the sub-district level, are mostly engaged in agricultural activities. Therefore, land data collection is very important, starting at the sub-district level. Unfortunately, the information system that supports this does not yet exist, especially in the Sukabumi district. Hence, this study to overview and use a web-based Geographic Information System (GIS) for land mapping, especially in Sukabumi District, Indonesia. The method used in this study was to conduct interviews with land officials at the sub-district level and several communities in the area. Information system problems from potential users are then addressed by designing a web-based information system and integrating it with GIS applications. The developed information system provides menus and sub-menus adapted to the needs of potential users. So far, the information system has been accessible and can help land officials at the sub-district level and several communities in the area. This will provide the level of detailed information that local communities need in responding to information related to their lands to minimize social conflicts.