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Eko Kusratmoko
Department of Geography, Faculty Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia

Published : 9 Documents
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PEMODELAN TRANSPORT SEDIMEN DI PERAIRAN PESISIR SEMENANJUNG MURIA, JEPARA Susiati, Heni; Pandoe, Wahyu; Budi Susilo, Yarianto Sugeng; Kusratmoko, Eko; Poniman, Aris
Jurnal Pengembangan Energi Nuklir Vol 12, No 1 (2010): Juni 2010
Publisher : Pusat Kajian Sistem Energi Nuklir, Badan Tenaga Nuklir Nasional

#### Abstract

ABSTRAKPEMODELAN TRANSPORT SEDIMEN DI PERAIRAN PESISIR SEMENANJUNG MURIA, JEPARA. Penelitian pergerakan transport sedimen di perairan Semenanjung Muria telah dilakukan. Dalam studi ini digunakan model matematika yang terdiri dari model hidrodinamika dan model transport sedimen. Input data yang digunakan dalam model adalah pasang surut, angin muson, dan debit sungai. Hasil simulasi pemodelan transport sedimen menunjukkan bahwa penyebab utama dari variasi pola distribusi sedimen tersuspensi di perairan Semenanjung Muria adalah pasang surut dan variasi musim.Kata kunci: pemodelan, transpot sedimen, hidrodinamika ABSTRACTMODELLING OF SEDIMENT TRANSPORT AT MURIA PENINSULA COASTAL, JEPARA. Modelling of transport sediment modelling at Muria Peninsula have been done. In this study we had been used mathematical model that consist of hydrodynamics and sediment transport . Data input for modelling has been used tidal, moonson wind, and river debit. Simulation result of sedimen transport modelling showed that tides pattern and seasonal variations are the main causes of variations in the suspended sediment distribution in Muria Peninsula.Keywords: modelling, sediment transport, hydrodynamics
SPATIAL PATTERN OF HYDROLOGIC RESPONSE UNIT (HRU) EFFECT ON FLOW DISCHARGE OF CI RASEA WATERSHED USING LANDSAT TM IN 1997 TO 2009 Emiyati, .; Kusratmoko, Eko; Sobirin, .
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 13, No 1 (2016)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

#### Abstract

Hydrologic Response Unit (HRU) is a unit formed of hydrological analysis based on geology and soil type, slope, and land cover. This paper discussed the spatial pattern of Hydrologic Response Unit (HRU) in 1997-2009 and its impact on flow Ci Rasea watershed temporally. In this study, SWAT (Soil and Water Assessment Tool) model, based on land cover changed, was used to get HRU and flow in spatially and temporally. This method used Landsat TM 1997, 2003 and 2009 data for land cover and daily rainfall 1997-2009 for flow modeling. The results showed the spatial pattern of HRU in temporally was affected by landcover based on the changing of HRU. The majority of HRU spatial pattern at Ci Rasea watershed were clustered. During 1997-2009, accumulated surface runoff and the changing of flow discharge were affected by changes of HRU spatial pattern. The biggest accumulated surface runoff in Ci Rasea watershed influenced by HRU of agricultural cropland in area of clay soil type with slope slightly obliquely. While the smallest accumulated surface runoff in Ci Rasea watershed influenced by HRU of paddy field in the area of sandy loam soil type with a gentle slope. The changes of HRU agriculture cropland become HRU mixed cropland in area clay soil type with slope at a slight angle and HRU agriculture cropland become HRU paddy field in area, sandy loam soil type with a gentle slope could be decreasing the accumulation of surface runoff in Ci Rasea watershed.
ANCAMAN KEKERINGAN METEOROLOGIS DI PULAU KECIL TROPIS AKIBAT PENGARUH EL-NINO DAN INDIAN OCEAN DIPOLE (IOD) POSITIF, STUDI KASUS: PULAU BINTAN Narulita, Ida; Rahayu, Rahmawati; Kusratmoko, Eko; Supriatna, Supriatna; Djuwansah, Muhamad
Jurnal Lingkungan dan Bencana Geologi Vol 10, No 3 (2019)

#### Abstract

Coastal Physical Vulnerability of Surabaya and Its Surrounding Area to Sea Level Rise Sulma, Sayidah; Kusratmoko, Eko; Saraswati, Ratna
Makara Journal of Technology Vol 16, No 2 (2012)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

#### Abstract

The study for coastal vulnerability to sea level rise was carried out in Surabaya and its surrounding area, it has focused on calculations of the physical vulnerability index were&nbsp; used coastal vulnerability index (CVI) methods. It was standardized by the multi criteria analysis (MCA) approach according to the study area.&nbsp; The score of each physical variable derived from remote sensing satellite data and the results of studies that have been done, such as modeling results and thematic maps, and then integrated into geographic information systems (GIS). Result of this study shows that the coastal areas of Gresik, Surabaya, and Sidoarjo in the very low to very high vulnerability level. Physically, the low land areas with open and slightly open coastal have a high vulnerability category. The high level vulnerability was found located in the northern of Madura Strait (Gresik Regency) that overlooks to the Java Sea is about 28.81% from the entire of study areas. Meanwhile, the moderate, low and very low levels of vulnerability were located on Surabaya and Sidoarjo Regency that have more protected coastal area, relatively. According to the physical condition, the coastal elevation is the most variable that contributes to the high of vulnerability index in the coastal of Surabaya City and Sidoarjo Regency.&nbsp;
THE EFFECT OF HYDROLOGIC RESPONSE UNIT ON CI RASEA WATERSHED STREAMFLOW BASED ON LANDSAT TM Emiyati, .; Kusratmoko, Eko; Sobirin, .
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 12, No 2 (2015)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

#### Abstract

. This paper discusses spatial pattern of Hydrologic Response Unit (HRU), which is a unit formed of hydrological analysis, including geology and soil type, elevation and slope, and also land cover in 2009. This paper also discusses the impact of HRU on streamflow of Ci Rasea watershed, West Java. Ci Rasea watershed is located at the upstream part of Ci Tarum watersheds in West Java Province, Indonesia. This research used SWAT (Soil and Water Assessment Tool) model to obtain spatial HRU and river flow. The method used Landsat TM data for land cover and daily rainfall for river flow modeling. The results have shown spatial pattern of HRU which was affected by land cover, soil type and slope. In 2009, accumulated surface runoff and streamflow changes were spatially affected by HRU changes. The large amount accumulation of river flow discharge happened in HRU with landcover paddy field, silty clay soil, and flat slope. While the low discharge of river flow happened in HRU with plantation, clay soil, and slightly steep slopes as HRU dominant. It was found that accumulation of surface runoff in Ci Rasea watershed can be reduced by changing the land cover type in some areas with clay and slightly steep slope to become plantation area and the areas with sandy loam soil and flat slope can be used for paddy fields. Beside affected by HRU, the river flow discharge was also affected by the distance of sub watershed to the outlet. By using NS model and statistical t-student for calibration and validation, it was obtained that the accuracy of river flow models with HRU was 70%. It meant that the model could better simulate water flows of the Ci Rasea watershed.
Model Spasial Perubahan Penggunaan Lahan dan Pengaruhnya Terhadap Kebijakan Swasembada Padi Amrillah, Dede; Kusratmoko, Eko; Supriatna, Supriatna
Majalah Geografi Indonesia Vol 32, No 1 (2018): Maret 2018

#### Abstract

Risiko Kerugian Akibat Longsor di Desa Cibanteng, Kecamatan Sukaresmi, Kabupaten Cianjur, Jawa Barat Ulfa, Fathiyya; Kusratmoko, Eko; Wibowo, Adi
Majalah Geografi Indonesia Vol 29, No 2 (2015): September 2015

#### Abstract

Karakteristik Permukiman pada Wilayah Rawan Tanah Longsor di Desa Cibanteng, Cianjur, Jawa Barat Puspita, Desy; Susilowati, M.H. Dewi; Kusratmoko, Eko
Majalah Geografi Indonesia Vol 28, No 2 (2014): September 2014