scholarly journals Coastal Inundation and Land Subsidence in North Coast of West Java: A New Hazard?

2021 ◽  
Vol 925 (1) ◽  
pp. 012015
Author(s):  
T Solihuddin ◽  
S Husrin ◽  
E Mustikasari ◽  
A Heriati ◽  
T L Kepel ◽  
...  
Keyword(s):  
Land Subsidence ◽  
Satellite Image ◽  
Measurement Data ◽  
North Coast ◽  
Fish Ponds ◽  
West Java ◽  
Coastal Inundation ◽  
Industrial Estates ◽  
The North ◽  
Settlement Areas

Abstract The North Coasts of West Java are increasingly affected by human activities. The area has been utilized as settlement areas, industrial estates, and associated infrastructures including roads, school, hospital, market, etc. Consequently, this massive landuse and uncontrolled natural resources extraction have contributed to environmental degradation such as coastal erosion, accretion, pollution, inundation, and land subsidence. To date, we have so far very few field measurement data of land subsidence to support its importance. However, satellite image and on-ground observations used to determine spatio-temporal changes in the shoreline and area of inundation indicated the existence of land subsidence. Groundtruth data on selected areas also indicated the indicators of land subsidence such as damages of infrastructures including houses, roads, and sea dikes. The most noticeable shoreline changes in the North Coast of West Java are situated in Muara Gembong Bekasi and Legon Kulon Subang constituting maximum rates of shoreline retreat up to 200 and 150 m/year respectively for the last two decades (from 2000 to 2020). Whilst, the total areas of inundation in Muara Gembong and Legon Kulon based on recent satellite studies are 10.2 km2 and 7.4 km2 respectively. Coastal inundation might be linked to the combination of long-term behavior of oceanographic variables such as wave and sea level, in coincidence with hydrological changes due to river works (i.e. dam constructions and channellings) and an increase of settlement areas, fish ponds, groundwater extraction, etc. A set of preliminary engineering measures, in conjunction with sediment managing schemes, is proposed for the sustainable development of the coastal zone.

scholarly journals Studi Perubahan Garis Pantai Berdasarkan Interpretasi Citra Satelit Landsat dan Perhitungan Rasio Lahan di Wilayah Pesisir Indramayu Jawa Barat

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Thonas Indra Maryanto ◽  
Wiwin Windupranata ◽  
Samsul Bachri
Keyword(s):  
Satellite Image ◽  
Image Data ◽  
North Coast ◽  
Transitional Region ◽  
Northern Coast ◽  
Residential Areas ◽  
West Java ◽  
The North ◽  
Average Sedimentation Rate ◽  
Landsat Satellite

ABSTRAKWilayah pesisir sebagai kawasan peralihan yang menghubungkan ekosistem darat dan ekosistem laut, sangat rentan terhadap kerusakan dan perubahan yang diakibatkan oleh berbagai aktifitas manusia di darat maupun di laut. Kabupaten Indramayu merupakan salah satu wilayah di Pesisir Utara Jawa Barat yang mengalami kerusakan paling parah diantara seluruh kabupaten di wilayah pesisir Utara Jawa Barat serta memiliki penggunaan lahan pesisir yang cukup lengkap mulai dari pemukiman, persawahan, tambak, dan industri (PLTU dan MIGAS)..Besarnya perubahan garis pantai yang meliputi abrasi dan sedimentasi diturunkan dari data citra satelit Landsat wilayah pesisir Kabupaten Indramayu tahun 1994-2009 dengan metode komposit RGB 4, 5, 7 dan Metode AGSO kemudian dilakukan proses digitasi.. Luas abrasi di 11 Kecamatan Pesisir Indramayu dari tahun 1994 – 2009 sebesar 3900,41 Ha dengan laju abrasi rata-rata sebesar 23,64 Ha/ tahun dan Luas sedimentasi sebesar 650,29 Ha dengan laju sedimentasi rata-rata sebesar 4,81 Ha/tahun. Hasil perhitungan regresi terhadap rasio lahan penduduk untuk tahun 2015 sebesar 0,07 Ha/ jiwa dan menurun pada tahun 2025 menjadi 0,05 Ha/jiwa .Rasio lahan petani untuk tahun 2015 sebesar 0,66 Ha/petani dan menurun menjadi 0,55 Ha/petani di tahun 2025.Kata Kunci : Pesisir indramayu, citra satelit, abrasi dan sedimentasi, Rasio lahanABSTRACTCoastal areas as a transitional region connecting the land ecosystems and marine ecosystems, are vulnerable to damage and changes caused by various human activities on land and at sea. Indramayu regency is one of the areas in the North Coast of West Java is the most severely damaged among all districts in the northern coast of West Java and has a coastal land use complete enough from residential areas, wet rice fields, ponds, and industrial (power plant and Gas). The number of change in coastal line include erosion and sedimentation derived from Landsat satellite image data coastal areas of Indramayu district in 1994-2009 with the composite method RGB 4, 5, 7 and methods AGSO then do the digitization process. The extent of abrasion in 11 districts of the coastal Indramayu from 1994 - 2009 are 3900.41 hectares with average abrasion rate of 23.64 ha / year and sedimentation area of 650.29 hectares with an average sedimentation rate of 4.81 ha / year. Results of regression calculations to land ratio for the 2015 population of 0.07 ha / life and decreased in 2025 to 0.05 hectares /life .Rasio farmers' fields for 2015 of 0.66 ha / farmer and decreased to 0.55 Ha / farmers in 2025. Keywords: Coastal area of indramayu, satellite imagery, erosion and sedimentation, land Ratio

scholarly journals Akumulasi Logam Berat Pada Kerang Hijau di Perairan Pesisir Jawa

2020 ◽  
Vol 5 (2) ◽  
pp. 135
Author(s):  
Ariani Andayani ◽  
Isti Koesharyani ◽  
Ulfa Fayumi ◽  
Rasidi Rasidi ◽  
Ketut Sugama
Keyword(s):  
Heavy Metals ◽  
Coastal Waters ◽  
Food Source ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
North Coast ◽  
Green Mussel ◽  
Industrial Estates ◽  
The North ◽  
Surrounding Environment

<strong>Heavy Metal Accumulation on Green Mussels in the Java Coastal Water.</strong>In many countries, green mussel (<em>Pernaviridis</em>) is harvested as food source. It is also commonly used as indicators for toxic contaminant, i.e. heavy metals, in the coastal waters. In Indonesia, green mussels are mostly cultivated in the north coast of Java where most industrial estates are located. Without further treatment, toxic contaminant of industrial waste may give impact to the surrounding environment, not to mention the adjacent coastal waters. This study was aimed to determine the accumulation of heavy metals, namely Hg, Pb and Cd, in green mussels. Green mussel samples were collected in 2017, taken from four culture sites in the north coast of Java: Panimbang, Jakarta Bay, Brebes and Cirebon. Our results showed that the concentration of Hg, Pb and Cd in green mussel tissues of those locations are: Panimbang = Hg: &lt;0.22 mg/kg, Pb: undetectable, and Cd: 0.068 mg/kg; Teluk Jakarta = Hg: 11.7 mg/kg, Pb: 29.4 mg/kg, and Cd: 0.42 mg/kg; Brebes = Hg: 0.01 mg/kg, Pb: 3.52 mg/kg, and Cd: 0.4 mg/kg; and Cirebon = Hg: 0.01 mg/kg, Pb: 2.66 mg/kg, and Cd: 0.73 mg/kg. These results indicate that only green mussels from Panimbang contain heavy metals below the thresholds allowed to be consumed by humans

scholarly journals LAND SUBSIDENCE STUDY IN KENDAL DISTRICT, CENTER JAVA

2020 ◽  
Vol 14 (2) ◽  
pp. 89-93
Author(s):  
Ritha Riyandari
Keyword(s):  
Economic Development ◽  
Natural Disasters ◽  
Land Subsidence ◽  
Regional Planning ◽  
Regional Economic Development ◽  
North Coast ◽  
The North ◽  
District Center ◽  
Soil Compressibility ◽  
Basic Infrastructure

The need for information about disaster prone areas in Indonesia began to be felt very urgently since the natural disasters that occurred in many places in Indonesia. One of the information needed is information related to the area of land subsidence disaster. Kendal Regency is one of the areas located along the north coast of Java which is generally composed of alluvium deposits that have not been maximally consolidated, so they have high soil compressibility. These conditions indicate that compaction of the land naturally is still ongoing, so that if there is excessive overloading it will lead to a process of land subsidence regionally. By knowing the value of land subsidence and the areas that experience it, it is expected to be able to support regional planning, planning and development of basic infrastructure / facilities, housing / settlement planning as well as regional economic development in efforts to mitigate land subsidence.

scholarly journals PEMBERDAYAAN PENGOLAH IKAN SKALA RUMAH TANGGA DI PROVINSI JAWA BARAT

2017 ◽  
Vol 12 (2) ◽  
pp. 189
Author(s):  
Yaya Hudaya ◽  
Aida Vitayala Hubeis ◽  
Basita Sugihen ◽  
Anna Fatchiya
Keyword(s):  
South Coast ◽  
North Coast ◽  
Small Scale ◽  
Fish Processing ◽  
The South ◽  
The West ◽  
West Java ◽  
The North ◽  
Significant Difference ◽  
North And South

Pemberdayaan pengolah ikan di Provinsi Jawa Barat dilakukan dengan tujuan untuk meningkatkan kesejahteraan pelaku usaha, menjamin keamanan pangan produk yang dihasilkan, dan ikut menjaga kelestarian sumber daya ikan yang ada. Tujuan penelitian ini adalah untuk menganalisis kinerja pemberdayaan pengolah ikan skala rumah tangga dan dampaknya di Provinsi Jawa Barat. Metode analisis menggunakan uji beda Man Whitney U. Hipotesis penelitian ini adalah ada perbedaan nyata proses pemberdayaan pengolah ikan dan dampaknya di pesisir utara Kabupaten Cirebon dan selatan Kabupaten Sukabumi, Provinsi Jawa Barat. Hasil penelitian menunjukkan tidak ada perbedaan nyata proses pemberdayaan pengolah ikan dan dampaknya baik di pesisir utara Kabupaten Cirebon maupun di pesisir selatan Kabupaten Sukabumi. Kebijakan pemberdayaan pengolahan ikan skala rumah tangga di Provinsi Jawa Barat baik di pesisir utara maupun selatan tidak perlu dibedakan. Namun, intensitas pemberdayaan terutama penyuluhan perikanan, bantuan peralatan dan modal usaha perlu ditingkatkan lagi. Title: The Empowerment of Small Scale Fish Processorsin West Java Province Empowerment of fish processors in West Java Province was carried out in order to improve wellbeing of the fish processors, ensuring food security of the product, and maintaining sustainability of the fish resource. The purpose of this study was to analyze performance of the empowerment of small scale fish processors and its related impact in the West Java Province. The analytical method used different test Man Whitney U. Hypothesis of this research was that there was a significant difference between the process of fish processing empowerment and its related impact in the north coast of Cirebon District and in the south coast of Sukabumi district of West Java Province. The results indicated that there was no significant difference between the process of fish processing empowerment and its impact both in the north coast of Cirebon and in the south coast of Sukabumi. Hence, policy on empowerment small scale fish processing household in both north and south coast districts of West Java Province can be treated the same. However, the intensity of empowerment, especially in terms of fisheries extension, equipment and business capital assistance need to be improved.

scholarly journals Wave driven Setup across the North Coast Region of West Java

2021 ◽  
Vol 925 (1) ◽  
pp. 012052
Author(s):  
J Risandi ◽  
W S Pranowo ◽  
A R T D Kuswardani ◽  
S Husrin ◽  
T Solihuddin ◽  
...  
Keyword(s):  
Surf Zone ◽  
Coastal Region ◽  
Field Studies ◽  
North Coast ◽  
West Java ◽  
Offshore Area ◽  
Wave Setup ◽  
The North ◽  
The Waves ◽  
Coast Region

Abstract Wave energy dissipation on the surf zone is compensated with the increase of mean sea level, the so-called wave setup, within the area. This study used the numerical model Delft3D to investigate the dynamics of setup across the north coast region of West Java (Losari to Indramayu) influenced by monsoon variations. The wave forcing was obtained from previous field studies on Cirebon coastal region. The waves within the region were largely dissipated far from the coastline, mainly at the area between Babakan and Karangampel, due to the gentle slope of the North coast of Java. The waves approaching the shoreline were mainly influenced by the east monsoon associated with the longer fetch from that direction. The wave setup varied from ~0.03 to 0.15 m, with the maximum setup occurred near the coastline of the east (Losari) and west (Indramayu) parts of the model domain that consisted of steeper slopes. This, potentially inducing severe coastal inundation that became a serious problem across the coastlines. Meanwhile, the setup near the coastline of the middle area of the domain (Babakan to Karangampel) was very weak, which was correlated to the larger wave dissipation within the offshore area of that region.

scholarly journals Monitoring Urban Expansion and Loss of Agriculture on the North Coast of West Java Province, Indonesia, Using Google Earth Engine and Intensity Analysis

2022 ◽  
Vol 2022 ◽  
pp. 1-16
Author(s):  
Laju Gandharum ◽  
Djoko Mulyo Hartono ◽  
Asep Karsidi ◽  
Mubariq Ahmad
Keyword(s):  
Agricultural Land ◽  
Urban Expansion ◽  
Google Earth ◽  
North Coast ◽  
Land Conversion ◽  
Intensity Analysis ◽  
West Java ◽  
Lulc Change ◽  
The North ◽  
Google Earth Engine

Uncontrolled urban expansion resulting from urbanization has a disastrous impact on agricultural land. This situation is being experienced by the densely populated and fertile island Java in Indonesia. Remote sensing technologies have developed rapidly in recent years, including the creation of Google Earth Engine (GEE). Intensity analysis (IA) is increasingly being used to systematically and substantially analyze land-use/land-cover (LULC) change. As yet, however, no study of land conversion from agriculture to urban areas in Indonesia has adopted GEE and IA approaches simultaneously. Therefore, this study aims to monitor urban penetration to agricultural land in the north coastal region of West Java Province by applying both methods to two time intervals: 2003–2013 and 2013–2020. Landsat data and a robust random forest (RF) classifier available in GEE were chosen for producing LULC maps. Monitoring LULC change using GEE and IA has demonstrated reliable findings. The overall accuracy of Landsat image classification results for 2003, 2013, and 2020 were 88%, 87%, and 88%, respectively. IA outputs at interval levels for all categories showed that the annual change-of-area rate was higher during 2013–2020 than during 2003–2013. At the category level, IA results showed that the area of agricultural land experienced net losses in both periods, with net loss in 2013–2020 being 2.3 times greater than that in 2003–2013 (∼1,850 ha per year). In contrast, the built-up area made net gains in both periods, reaching almost twice as much in the second period as in the first (∼2,030 ha per year). The transition-level IA performed proved that agricultural land had been the primary target for the expansion of built-up areas. The most extensive spatial distribution of land conversion from agriculture to built-up area was concentrated in the regencies of Bekasi, Karawang, and Cirebon. These findings are intended to provide stakeholders with enrichment in terms of available literature and with valuable inputs useful for identifying better urban and regional planning policies in Indonesia and similar regions.

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