Evi Anggraheni

• Doctor of Engineering
• Lecturer at University of Indonesia

The Citarum Watershed is indeed a critical water resource in Indonesia, playing a significant role in providing water to Jakarta and other areas in West Java. However, it faces severe environmental stress due to land use changes and climate changes. The Upper Citarum Watershed, considered to be a conservation area, has experienced rapid development...

The increasing frequency of extreme weather events due to climate change poses significant risks to urban rail systems, especially in disaster-prone regions like Indonesia. Urban railways, with limited rerouting options, are highly vulnerable to natural disasters such as floods, landslides, and earthquakes. These disruptions can cause cascading eco...

Population growth and scientific advances have led to increased human needs that can have an impact on the sustainability of the DAS environment. The Citarum River faces a number of problems, including a decrease in water quality due to pollution, depletion of water quantity especially in the dry season, siltation of rivers due to sedimentation and...

Abstrak Banjir di Jakarta menimbulkan kerusakan dan kerugian, menjadi latar belakang dilakukannya analisis banjir di Polder Sunter Timur II yang disajikan dalam makalah ini. Wilayah hilir Jakarta terbagi menjadi 43 sistem polder dan salah satunya adalah Polder Sunter Timur II. Studi ini bertujuan untuk mendapatkan luas daerah banjir rencana Polder...

Management of rainfall runoff based on sustainable development, also known as nonstructural technology, is a new paradigm in stormwater management in urban and sub-urban areas. Jakarta, which is the capital of Indonesia, is an area with very rapid development, causing its buffer zones to also experience quite rapid development. Ciliwung is one of 1...

Jakarta's coastal region, characterized by dense settlements and industrial zones, faces significant flood risks due to land subsidence and rising sea levels, exacerbated by human activities and climate change. This study evaluates the effectiveness of the National Capital Integrated Coastal Development (NCICD) project, which proposes embankments a...

Evapotranspiration is an essential part of water availability analysis and crop water needs that are useful to estimate irrigation water demand. Since discharge measurement stations are limited, the analysis of water availability is the most important part of water management planning. Citarum watershed is the biggest watershed in West Java, suppli...

Jakarta is prone to pluvial, fluvial, and coastal flooding due to its geographical location and topography. In response to this problem, the Indonesian government has implemented several master plans, including the National Capital Integrated Coastal Development (NCICD). This ongoing program encompasses the construction of coastal and river embankm...

Sermo Dam is located in the Special Region of Yogyakarta and serves multiple purposes including providing drinking water, supplementing irrigation systems in the Kalibawang area, and flood control. According to data published by the World Commission, 60% of mitigation measures taken to overcome the impact of dam structure failures are unsuccessful....

DKI Jakarta is the capital city of Indonesia well known as a city with the most rapid development and growth in the country. This indicates that with the increase in the population of Jakarta, the need for a considerable change of land use cannot be denied. Environmental problems will get worse over time and have resulted in flooding in Jakarta whi...

Abstrak Pemahaman mengenai proses dan besarnya limpasan yang terjadi beserta faktor yang mempengaruhinya sangat diperlukan sebagai acuan untuk pelaksanaan manajemen pada kawasan perkotaan yang lebih efektif. Studi ini dilakukan di DAS Mampang yang di dalamnya merupakan area Jakarta Selatan. Tujuan dari studi ini adalah untuk mengkaji besarnya limpa...

Data hujan adalah salah satu komponen penting dalam kegiatan penelitian, perencanaan maupun pengelolaan sumber daya air. Pengaruh variabilitas curah hujan secara spasial dan temporal pada permodelan limpasan hujan telah lama menjadi perhatian dari ahli hidrologi dan menjadi sumber kesalahan utama pada analisis debit (Emmanuel et al 2015). Salah sat...

A meteorological drought refers to reduced rainfall conditions and is a great challenge to food security. Information of a meteorological drought in advance is important for taking actions in anticipation of its effects, but this can be difficult for areas with limited or sparse ground observation data available. In this study, a meteorological dro...

The high rate of urbanization is one of the problems that has occurred in Jakarta as capital of Indonesia. The implication is the change in land use from pervious cover to impervious cover which have an impact on increasing stormwater runoff. Jakarta International Expo (JIExpo) is one of commercial complex in Central Jakarta. The complex covered ar...

Based on its imperviousness, most of the sub-watersheds in the lower part of Ciliwung watershed in West Java are classified as urban drainage. High imperviousness in the urban environment will cause multiple stressors among others on the discharge, water quality and habitat condition, those supposedly support the presence of macroinvertebrates. Mac...

Sediment yield is eroded soil that transported from a place to a measurement point, for example in a reservoir. Sediment in the reservoir is a problem that can reduce the performance of the reservoir, so it needs to be assess regularly. One of many ways to assess is to calculate the potential of sediment that enters the reservoir. The research obje...

On March, 27 th 2009 Situ Gintung dam collapsed. Situ Gintung dam failure has been analyzed based on the condition of watershed, reservoir, and embankment on March, 27 2009. Hydrological analysis and slope stability analysis are combined to analyze the major causes gintung collapse. Watershed analysis using ARC-GIS software, routing in reservoir us...

Program for predicting runoff discharge from rain events is HEC-HMS. The results of the HEC-HMS hydrograph depends on the characteristics of the watershed. Arc-Hydro/HEC-Geo HMS are programs that are usually used in hydrological modelling. The results of the Arc-Hydro analysis depends on the sensitivity of the topographic map. Due to complex surfac...

Gintung Dam is a dam resulting from the post-disaster reconstruction and rehabilitation in 2009. In this study, economic feasibility analysis post reconstruction and rehabilitation is carried out. The feasibility analysis is reviewed based on economic value of the benefits of Gintung Dam and investment cost as well as Operational and Maintenance (O...

This study focuses on the water quality in a catchment area that is affected by the imperviousness cover. The purpose of this study is to prove the correlation analysis between impervious cover as the independent variable and the water quality index as the dependent variable by analysing the correlation and regression relationship. The study area i...

Kelapa Gading is one of the sub-districts located in North Jakarta which consists of low-level plains prone to flooding. One of the areas in Kelapa Gading that is most severely affect by the floods is in front of the Mall of Indonesia (MOI). Based on earlier research, it has been reported that one of the causes of flooding in Kelapa Gading is its d...

Runoff coefficient or Curve Number (CN) is a parameter value needed to describe runoff in accordance with the intended land use. In determining CN values, it is necessary to take account the Hydrologic Soil Group. The Hydrologic Soil Group (HSG) consists of 4 groups, which are: A, B, C, and D. In order to classify the appropriate HSG, several metho...

There are two methods that can be used to calculate the area of impervious cover on a watershed, Total Impervious Area (TIA) and Effective Impervious Area (EIA). Calculation of impervious cover generally uses the TIA method. Recently, based on several researches, EIA is the better indicator for identifying surface runoff discharge. This study aims...

Flood routing in the catchment area can be simulated by transform method. Based on the complexity of data requirement, there are two significant differences of the transform method in watershed routing, namely the SCS Unit Hydrograph and Kinematic Wave. The purpose of this study is to analyze the effectiveness of those two methods by comparing two...

More than 40% area in Jakarta is below mean sea level which it causes inundation to occur every year in Jakarta. In order to solve this problem, the government developed Jakarta flood control management. Polder system is one of drainage system for areas that cannot drain water by gravity. There is one polder system located at North Jakarta named No...

Flood routing is needed to determine the distribution of flood peak time and magnitude of peak flooding that occurs. Flood routing can be done on the river channel using the transform function principle. There are two methods of flood routing in reach that have significant differences based on general concepts and number of data requirements needed...

Various studies show a close relationship between imperviousness and various biotic/abiotic elements of aquatic ecosystem. This phenomenon has been adapted to assess the water-sensitivity of a regional spatial plan at regency/city level. A generic assessment procedure based on the experience in Upper Ciliwung watershed is ready for application in o...

The water quality of UI ponds is decreasing every year. In 2015 the UI Ponds Audit was conducted to determine the quality of the water. One of the parameters that affects the water quality is nitrate. Nitrates serves as the nutrients of plants. Excessive nitrate may cause eutrophication phenomenon, in which the water experience too much nutrients a...

Increasing population in Jakarta leads to increased needs of settlements and their supporting facilities. To compensate, various methods are being undertaken, from utilization of open area to the riparian, especially in the Ciliwung River. This utilization results in the loss of riparian natural ability, which changes the river’s hydraulic conditio...

Based on the Comprehensive Flood Management Plan (CFMP), one of the flood control alternatives in the Ciliwung Watershed is using the dry dam construction. Construction of Ciawi dam and Sukamahi dam who are located in Bogor District, are expected to decrease the flood peak and increasing the time concentration in order to reduce the impact caused b...

High population growth rate will increase the infrastructure development, so the impervious land cover in a certain area will be greater. In 2016, the percentage of impervious area in UI Depok catchment area has reached 57%. This condition causes the surface runoff volume and probability of flood will increase. LID is a new paradigm for stormwater...

Flooding is one of the problems that Jakarta faces every year. To handle the issue, the government took action to build the East Flood Canal. The canal construction is expected to reduce flooding, especially in the east and north region of Jakarta. However, the construction did not make the area immediately free of flood risk. Previous study (Susan...

At the Universitas Indonesia (UI) there are six cascade-pond water quality decreased from year to year. This can be seen in plain view, on the change of water color, odor, and the amount of solid waste that is in cascade-pond that comes from outside the UI. The decrease of water quality is one of the reasons caused by land use change in UI Water Ca...

The hydrological model has an important role to present the accurate and reliable information for water resources management. In this research, combination of HEC-GeoHMS and HEC-HMS that adopt the SCS-CN model have been chosen to analyse the hydrological characteristic at Upper Ciliwung Watershed. Ciliwung Watershed is one of 13 watersheds that has...

The primary input for hydrological the hydrological model is rainfall. The accurate illustration of rainfall in time and space is important for rainfall-runoff modeling since it impact the hydrological responses. The impact of spatial rainfall variability on runoff representation depends on the type of rainfall, the catchment characteristic (nature...

Upper Ciliwung watershed in the JABODETABEKPUNJUR area experiencing rapid population growth, which in turn promotes the pace of infrastructure development especially increasing impervious land cover. This will trigger various stressors to the abiotic and biotic elements in the aquatic ecosystem. This study aims to examine whether the relationship b...

Bojonegoro faces flood every year with less advanced prevention development. Bojonegoro city development could not peak because the flood results material losses. It affects every sectors in Bojonegoro: education, politics, economy, social, and infrastructure development. This research aims to analyse and to ensure that river capacity has high prob...

The Katulampa Weir is a part of Jakarta Flood Early Warning System for the Ciliwung River. The measured water level fluctuation in the Katulampa Weir is affected by the physical condition of the Upper Ciliwung Watershed. In this study, the definition and relevance of the impervious cover determination method based on the Total Impervious Area (TIA)...

Upper Ciliwung watershed in the JABODETABEKPUNJUR area experiencing rapid population growth, which in turn promotes the pace of infrastructure development especially increasing impervious land cover. This will trigger various stressors to the abiotic and biotic elements in the aquatic ecosystem. This study aims to examine whether the relationship b...

Jakarta is the capitol of Indonesia which located at the downstream part of Ciliwung. Flooding is a most natural hazard at Jakarta, almost every years its occur at Jakarta. Many infrastructure and researches have been done to decrease risk of flooding. Ciawi and Sukamahi Dams is one of the structural method proposed by government to decrease the pe...

The population in the catchment area of Universitas Indonesia (UI) campus cascade-pond system is growing rapidly. The rapid growth of population increases the activities intensity in the catchment area, so that a better water resource management is urgently needed. The Dublin Principles in Integrated Water Resource Management (IWRM) among others sa...

Catchment area of cascade-pond system at Universitas Indonesia (UI) campus is an area with high population density. The high population density has led to increasing impervious cover since it has to provide the housing needs. Increasing of impervious cover affected stream quality in the catchment area. The state of aquatic system quality can be ass...

The main problem in controling rainfall runoff in urban areas generally consists of the need to control the depth of peak discharge and flow throughout the system, in order to avoid unwanted puddles. Conventional paradigm in rainwater harvesting used the centralize rainwater management system. This method is about to drainage the rainfall rapidly o...

The impact of spatial land use variability on the accuracy of runoff simulation was investigated in order to define the optimal spatial discretization of the watershed to be adopted in rainfall-runoff modeling. The correlation between the types of land cover, soil characteristic and soil humidity on the runoff coefficient determining is very import...

The sediment yield is defined as the amount of sediment discharged by an area for a given period of time. Schaffernak proposed to estimate sediment yield in a watershed based on a sediment duration curve. The research objective is to test the applicability of a modified Schaffernak approach in estimating annual sediment yield in Sugutamu, a small u...

A natural undeveloped watershed represents a spatially distributed runoff control system in which small volumes of watershed storage are mobilized to reduce runoff rate. Urbanization changes these natural hydrological mechanisms by increasing the permeability of land cover, changing land use, removing vegetation from the ground surface, transformin...

Low Impact Development and Better Site Design (LID/BSD) terms include a series of techniques – known as Best Management Practices (BMPs), that reduce impervious cover, conserve natural areas, and use pervious areas to more effectively treat stormwater runoff, and promote " the treatment train approach " to runoff management. The goal of LID/BSD is...