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"Floods cause distress and damage wherever and whenever they happen. Flooding from rivers, estuaries and the sea threatens many millions of people worldwide and economic and insurance losses from flooding have increased significantly since 1990. Across the European Union, flood management policy is changing in response to the EU Directive on the assessment and management of flood risks, which requires a move from flood protection and defence to comprehensive flood risk management. Flood Risk Management: Research and Practice includes about 200 contributions from the international conference FLO."

"A case study of potential inundation of Saska Kepa in Warsaw is presented. The flood is a result of a hypothecal breach of a segment of the vistula river embankment

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"Skripsi ini membahas tentang sebaran wilayah banjir tahun 2002,2007 dan 2008 di wilayah Rawa Buaya Jakarta Barat. Curah hujan, topografi dan penggunaanmerupakan variabel yang digunakan untuk mengetahui perbedaan dan persamaan sebaran wilayah wilayah banjir. Hasil penelitian menunjukkan bahwa sebaran banjir tahun 2002 dan 2007 hampir merata didaerah penelitian meliputi tanggul sungai, dataran banjir dan rawa belakang (back swamp), sementara pada kejadian banjir tahun 2008 sebarannya hanya meliputi dataran banjir dan rawa belakang. Variabel Curah Hujan yang paling mempengaruhi sebaran dan luas wilayah banjir di Rawa Buaya.This research explains about the spread of flood area in 2002, 2007 and 2008 in Rawa Buaya, West Jakarta. The rainfall, topography, and land use are some variables pointed to knowing the difference and the tantamount about the spread of flood area. Research?s result shows that the spread of flood area in 2002 and 2007 nearly flat in the natural leeve, flood plain, and back swamp. While in 2008, the spread covered only in flood plain and back swamp. Rainfall variable influences more to the spread and the flood-breadth-area in Rawa Buaya."

"Bencana hidrometeorologi merupakan bencana yang sering terjadi di Indonesia, banjir merupakan bencana yang dominan di Indonesia. DAS Citarum terutama di bagian hulu sejak puluhan tahun dari tahun 1931, 1984, dan hingga saat ini sering mengalami banjir. Peningkatan jumlah penduduk dan kegiatan pembangunan menjadikan wilayah ini menjadi lebih rentan terhadap banjir. Penilaian kerentanan sangat penting untuk menentukan kesiapsiagaan, mitigasi, respon bencana, dan pemulihan. Penelitian ini bertujuan untuk mensimulasikan sebaran wilayah bahaya banjir pada periode ulang 5, 10, 25, dan 50 tahun dan model spasial kerentanan wilayah terhadap banjir dengan memetakan bahaya banjir berdasarkan analisis pemodelan numerik hidrodinamika menggunakan software MIKE FLOOD. Peta genangan yang dihasilkan akan diintegrasikan dengan data sosial dan demografi seperti kepadatan penduduk, populasi lanjut usia, populasi anak-anak, dan fasilitas kesehatan dengan menggunakan model SMCE (Spatial Multi Criteria Evaluation) yang selanjutnya digunakan untuk menentukan tingkat kerentanan berdasarkan indikator keterpaparan, sensitivitas, dan kapasitas. Hasil penelitian menunujukkan bahwa nilai kerentanan sosial tertinggi 0.24 di Kelurahan Malakasari dan 0.34 di Kelurahan Cangkuang sedangkan kerentanan sosial rendah dengan nilai 0.04 di Kelurahan Wargamekar dan 0.08 di Kelurahan Citeureup.

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Hydrometeorological disaster is a frequent disaster in Indonesia, flooding is a dominant disaster in Indonesia. Citarum watershed is mainly in the upstream since decade from 1931, 1984, and until now is often flooded. The increasing population and development activities make the region more vulnerable to flooding. Vulnerability assessment is crucial for determining preparedness, mitigation, disaster response, and recovery. This research aims to simulate the distribution of flood hazard areas in the return period of 5, 10, 25, and 50 year and a spatial model of territorial vulnerability to flooding by mapping the flood hazard based on the numerical analysis of the hydrodynamics by using the software MIKE FLOOD. The resulting inundation map will be integrated with social and demographic data such as population density, elderly populations, children's populations, and healthcare facilities using SMCE (Spatial Multi Criteria Evaluation) models which are subsequently used to determine the vulnerability level based on exposure, sensitivity and capacity indicators. Results showed that the value of the highest social vulnerability 0.24 was in Malakasari and 0.34 in Cangkuang subdistric while the low social vulnerability with a value of 0.04 was in Wargamekar and 0.08 in Citeureup subdistric."

"ABSTRAKLaju pertumbuhan penduduk dan kepadatan penduduk yang tinggi menyebabkan kompleksitas permasalahan lingkungan, salah satunya adalah permasalahan banjir.  Laju pertumbuhan penduduk yang tinggi mendesak ruang-ruang terbuka hijau dan sempadan sungai berubah menjadi wilayah-wilayah yang padat dengan permukiman seperti yang terjadi di Daerah Aliran Sungai (DAS) Ciliwung. Ancaman bencana banjir, kondisi sosial dan ekonomi serta pembangunan infrastruktur dari hulu sampai dengan hilir DAS Ciliwung semakin meningkatkan risiko bencana banjir di DAS Ciliwung. Tujuan penelitian ini adalah menganalisis ancaman bencana banjir, kerentanan (sosial dan ekonomi), kapasitas daerah dan masyarakat di DAS Ciliwung, menganalisis risiko bencana banjir di DAS Ciliwung, menganalisis alternatif pengurangan risiko bencana banjir di DAS Ciliwung. Metode yang digunakan dalam riset ini adalah metode kuantitatif dan kualitatif dengan menggunakan data sekunder, data primer melalui pengisian kuesioner oleh pemangku kepentingan/Instansi dan penduduk yang terdampak banjir di DAS Ciliwung. Analisis yang digunakan adalah analisis deskriptif-kuantitatif dan analisis AHP untuk menentukan pemilihan alternatif pengurangan risiko bencana banjir. Hasil penelitian menunjukan bahwa tingkat ancaman bencana banjir di DAS Ciliwung baik di segmen tengah maupun di segmen hilir berada dikategori tinggi. Selain ancaman bencana banjir, tingkat kerentanan sosial ekonomi di DAS Ciliwung juga termasuk dalam kategori tinggi. Sedangkan dari sisi kapasitas masyarakat dan daerah, kapasitas masyarakat dan daerah pada segmen hilir lebih siap dibandingkan dengan masyarakat yang berada di segmen tengah. Tetapi walaupun kapasitas pada segmen hilir lebih siap, tidak dapat mengurangi risiko bencana banjir yang tinggi. Permasalahan tingginya risiko bencana banjir diatasi melalui alternatif pengurangan risiko bencana. Berdasarkan hasil AHP, maka diperoleh prioritas alternatif dengan bobot tertinggi yaitu peningkatan efektivitas pencegahan dan mitigasi bencana.

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ABSTRACTThe rate of population growth and high population density causes the complexity of environmental problems, one of which is the problem of flooding. The high rate of population growth is urging green open spaces and river borders to change into areas that are densely populated as happened in the Ciliwung River Basin. The threat of floods, social and economic conditions and infrastructure development from upstream to downstream of the Ciliwung watershed further increase the risk of flooding in the Ciliwung watershed. The purpose of this study is to analyze the threat of flood disasters, vulnerability (social and economic), regional and community capacities in the Ciliwung River Basin, analyze the risk of flood disasters in the Ciliwung River Basin, analyze alternatives to reduce the risk of flood disaster in the Ciliwung River Basin. The method used in this research is quantitative and qualitative methods using secondary data, primary data through filling out questionnaires by stakeholders/agencies and residents affected by flooding in the Ciliwung River Basin. The analysis used is descriptive-quantitative analysis and AHP analysis to determine the alternative selection of flood disaster risk reduction. The results showed that the level of flood threat in the Ciliwung watershed both in the middle segment and in the downstream segment was in the high category. In addition to the threat of flood disasters, the level of socio-economic vulnerability in the Ciliwung watershed is also included in the high category. Meanwhile, in terms of community and regional capacity, the capacity of communities and regions in the downstream segment is better prepared than those in the middle segment. But even though capacity in the downstream segment is better prepared, it cannot reduce the risk of high flood disasters. The problem of the high risk of flood disaster is overcome through alternative disaster risk reduction. Based on AHP results, an alternative priority with the highest weighting is obtained, namely the effectiveness of disaster prevention and mitigation."

"DKI Jakarta adalah ibu kota Indonesia yang dikenal sebagai kota dengan perkembangan dan pertumbuhan paling pesat di tanah air. Hal ini menunjukkan bahwa dengan bertambahnya jumlah penduduk Jakarta, kebutuhan akan perubahan tata guna lahan yang cukup besar tidak dapat dipungkiri. Masalah lingkungan akan semakin parah dari waktu ke waktu dan mengakibatkan banjir di Jakarta yang telah menjadi perhatian pemerintah daerah setiap tahun. Sistem polder dikatakan efektif dalam mengatasi masalah banjir terutama di Jakarta yang tidak dapat mengalirkan air secara gravitasi. Tujuan dari tugas akhir ini adalah untuk memberikan rekomendasi berdasarkan peta genangan eksisting sistem polder Sunter II Petukangan Timur menggunakan HEC-RAS-Ras Mapper dengan menambahkan sistem pompa dan tempat penyimpanan (waduk) serta menganalisis polder Sunter II Petukangan Timur. efektivitas rekomendasi sistem terhadap pengendalian banjir menggunakan HEC-RAS.

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DKI Jakarta is the capital city of Indonesia well known as a city with the most rapid development and growth in the country . This indicate that with the increase in the population of Jakarta, the need for a considerable change of landuse cannot be denied. Environmental problems will get worse over time and have resulted in flooding in Jakarta which has been the concern of the local government every year. A polder system is stated to be effective in resolving flood problems especially in Jakarta that cannot drain water by gravity. The goal of this thesis is to give out recommendation that is based on the existing inundation map of East Sunter II Petukangan polder system using HEC-RAS-Ras Mapper by adding pump system and storage area as well as to analyze the East Sunter II Petukangan polder system’s recommendation effectiveness to the flood control management using HEC-RAS."