Dini Oktavia Ambarwati, Dini Oktavia
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THE USE OF HIGH RESOLUTION IMAGES TO EVALUATE THE EVENT OF FLOODS AND TO ANALYSIS THE RISK REDUCTION CASE STUDY: KAMPUNG PULO, JAKARTA Khomarudin, M. Rokhis; Suwarsono, .; Ambarwati, Dini Oktavia; Prabowo, Gunawan
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 11, No 2 (2014)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1399.039 KB) | DOI: 10.30536/j.ijreses.2014.v11.a2610

Abstract

The flood hit Kampung Pulo region in almost every year. This disaster has caused the evacuation of some residents in weeks. Given the frequency of occurrence is quite high in the region it is necessary to do a study to support disaster risk reduction. This study aimed to evaluate the incidence of flooding that occurred in Kampung Pulo in terms of topography, river conditions, characteristics of the building, and socioeconomic conditions. Methods of study include geomorphology analysis, identification of areas of stagnant, the estimated number of people exposed, the estimation of socio-economic conditions of the population, as well as determining the location of an evacuation. The data used is high-resolution remote sensing imagery is QuickBird and SPOT-6. It also used the results of aerial photography using Unmanned Aerial Vehicle (UAV). Aerial photography was conducted on January 18, 2013, which is when the serious flooding that inundated almost the entire region of Kampung Pulo. Information risk level of buildings and population resulting from this study were obtained by using GIS. The results obtained from this study can be used to develop recommendations and strategies for flood mitigation in Kampung Pulo, Jakarta. One of them is the determination of the location for vertical evacuation plan in the affected areas.
MODEL SIMULASI BANJIR MENGGUNAKAN DATA PENGINDERAAN JAUH, STUDI KASUS KABUPATEN SAMPANG DENGAN MENGGUNAKAN METODE GRIDDED SURFACE SUBSURFACE HYDROLOGIC ANALYSIS (FOOD SIMULATION MODEL USING REMOTE SENSING DATA, CASE STUDY OF SAMPANG REGION USING GRIDDED SURFACE HYDROLOGIC ANALYSIS METHOD) Haryani, Nanik Suryo; Pasaribu, Junita Monika; Ambarwati, Dini Oktavia
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 9 No. 2 Desember 2012
Publisher : Indonesian National Institute of Aeronautics and Space (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1188.877 KB)

Abstract

Permasalahan banjir yang terjadi setiap tahun di Kabupaten Sampang disebabkan jumlah aliran yang masuk ke Kota Sampang sangat besar, terjadinya sedimentasi yang sangat tinggi di sungai yang melintasi kota, serta kurang baiknya sistem drainase terutama di daerah permukiman perkotaan. Beberapa permasalahan tersebut akhirnya dapat memicu terjadinya banjir di Kota Sampang. Metode yang digunakan untuk model simulasi banjir adalah metode Gridded Surface Subsurface Hydrologic Analysis (GSSHA), dimana metode tersebut mampu untuk menghasilkan komponen hidrologi dengan baik. Data yang digunakan dalam penelitian ini, antara lain: data Qmorph, Digital Elevation Model–Shuttle Radar Topography Mission (DEM-SRTM), SPOT-5 tahun 2010, peta tanah, data penampang sungai serta data lapangan. Penelitian model simulasi banjir ini menghasilkan volume banjir, debit puncak dan waktu yang digunakan untuk mencapai debit puncak banjir, yang digambarkan dalam hidrograf serta hasil perhitungan kedalaman banjir. Debit puncak yang dihasilkan oleh beberapa DAS, a.l.: DAS Klampis sebesar 5,40 m³/detik, DAS Jelgung sebesar 364788,90 m³/detik, DAS Kamoning sebesar 37,80 m³/detik, Sub DAS Kamoning sebesar 32,40 m³/detik, dan 3 DAS yang merupakan gabungan dari DAS tersebut sebesar 174059.10 m³/detik. Kata Kunci: Model simulasi banjir, GSSHA, Penginderaan jauh.