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KONSEP POLA SPASIAL PENGEMBANGAN KONEKTIVITAS DAN INFRASTRUKTUR PANTAI SERTA KAJIAN ASPEK DINAMIKA PANTAI UNTUK PENANGANAN PERMASALAHAN DI TELUK SEMARANG = CONCEPT OF SPATIAL PATTERN OF CONNECTIVITY AND INFRASTRUCTURE DEVELOPMENT AND STUDY OF ASPECTS OF COASTAL DYNAMICS OF THE BEACH FOR HANDLING PROBLEMS IN BAY OF SEMARANG Murtiaji, Cahyarsi; Wibowo, Mardi; Ifrani, M; Al Hakim, Buddin; Gumbira, Gugum
Majalah Ilmiah Pengkajian Industri Vol 9, No 1 (2015): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2678.859 KB) | DOI: 10.29122/mipi.v9i1.93

Abstract

AbstractSemarang Gulf coast is currently experiencing rapid growth as a major economic growth in Central Java. On the other hand, the current Gulf coast Semarang also experiencing very complex issues, such as tidal flooding, land subsidence, as well as damage due to coastal erosion and sedimentation. In accordance with the duties, functions and competence as well as one of the BPDP BPPT roles, namely assessment and solutions in the field of technology, the Research Center for Coastal Dynamics (BPDP)- BPPT conduct a study to produce a concept of spatial patterns of connectivity and infrastructure management issues Semarang Gulf and numerical modeling to determine changes pattern of coastal hydrodynamics and the environment in the Gulf of Semarang, which includes hydrodynamic modeling, modeling of water quality and sediment transport modeling. AbstrakPesisir Teluk Semarang saat ini mengalami perkembangan yang sangat pesat karena merupakan pusat pertumbuhan ekonomi utama di Jawa Tengah. Di sisi lain, saat ini pula pesisir Teluk Semarang mengalami berbagai permasalahan yang sangat kompleks, seperti banjir rob, penurunan muka tanah (land subsidence), serta kerusakan pantai akibat abrasi dan sedimentasi. Sesuai dengan tugas pokok, fungsi dan kompetensi BPDP serta salah satu peran BPPT, yaitu pengkajian dan solusi di bidang teknologi, maka Balai Pengkajian Dinamika Pantai – BPPT melakukan kajian untuk menghasilkan konsep pola spasial konektivitas dan infrastruktur penanganan permasalahan Teluk Semarang serta pemodelan numerik untuk mengetahui perubahan pola hidrodinamika pantai dan lingkungan di Teluk Semarang, yang meliputi pemodelan hidrodinamika, pemodelan kualitas perairan dan pemodelan transport sedimen.
STUDY OF DIKE EFFECTS TO CONTROL SEDIMENTATION PROCESS ON PATIMBAN'S PORT PLAN USING COMPUTATION MODELING Wibowo, Mardi; Kongko, Widjo
Majalah Ilmiah Pengkajian Industri Vol 12, No 2 (2018): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1704.903 KB) | DOI: 10.29122/mipi.v12i2.2567

Abstract

The development of the international port of Patimban in Subang is very urgent. The port is expected to support the Tanjung Priok port in Jakarta which is unable to meet the loading and unloading needs of business operators, especially in West Java. In port development planning one of the main problems of physical chemical aspects is sedimentation and erosion process. The purpose of this modeling is to know the sedimentation and erosion pattern around the location plan of port development. The result of modeling is expected to be the initial consideration in designing the Patimban Port. Modeling of sediment transport is done by using MIKE21 Sand Transport module software by entering geophysical data of field survey result such as bathymetry, sea level, river flow and characteristic of existing sediment. Modeling is done both in west season and east season for 1 year (October 2016-September 2017). Based on the result of point extraction on the modeling result, it is known that the influence of dike significantly reduces the bed level change in the harbor channel about 46.45 - 82.28% (for dike 2 m) and about 55.01 - 88.94% (for dike 4 m). While, based on the result of the area extraction, it is known that the influence of the dike on the bed level change in the harbor channel is significant, that is to decrease the average of bed level change by 77.58% (for dike 2m) and 81.02% (for dike 4m).
KAJIAN KONDISI LINGKUNGAN ABIOTIK SEBAGAI TITIK AWAL ANALISIS DAMPAK LINGKUNGAN RENCANA PEMBANGUNAN KAWASAN MARINA BELITUNG Wibowo, Mardi
Jurnal Rekayasa Lingkungan Vol 10, No 2 (2017): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Kabupaten Belitung merupakan bagian dari wilayah provinsi Kepulauan Bangka Belitung yang memiliki objek wisata utama berupa wisata bahari. Kabupaten Belitung telah ditetapkan sebagai salah satu Kawasan Strategis Pariwisata Nasional (KSPN) sesuai dengan PP Nomor: 50 Tahun 2011 tentang RIPPARNAS dan ditetapkan sebagai salah satu titik labuh kapal wisata (yacht) dari 18 Pelabuhan di seluruh Indonesia. Oleh karena itu saat ini Pemerintah Kabupaten Belitung merencanakan akan membangun kawasan marina di sekitar Pantai Tanjungpendam. Pembangunan kawasan marina akan menimbulkan dampak terhadap lingkungan baik positif maupun negatif. Sebagai dasar untuk menganalisis dampak lingkungan suatu kegiatan pembangunan diperlukan kajian rona lingkungan awal di sekitar lokasi rencana pembangunan. Salah satu komponen lingkungan adalah lingkungan abiotik yang meliputi lingkungan geofisik dan kimia seperti kondisi geologi, hidrologi, hidro-oseanografi, iklim, kondisi udara dan lain sebagainya. Metode yang digunakan dalam kajian ini adalah kompilasi data sekunder, survei lapangan dan analisis data berdasarkan baku mutu lingkungan. Tujuan kajian ini adalah mengetahui rona lingkungan awal aspek biotik sebagai dasar dalam memperkirakan kemungkinan dampak lingkungan yang terjadi serta mengetahui daya dukung lingkungan untuk pengembangan kawasan marina. Berdasarkan hasil kajian ini kondisi lingkungan abiotic (kualitas udara, kualitas air laut, kualitas air sungai) secara umum memenuhi baku mutu lingkungan yang berlaku. Kondisi hidrooseanografi dan daya dukung geologi (struktur geologi, geologi teknik, geomorfologi) sangat mendukung untuk dibangun kawasan marina Belitung. Kata kunci : abiotik, hidro-oseanografi, kawasan marina, baku mutu lingkungan
STRATEGI MITIGASI UNTUK MENGATASI PENYAKIT AKIBAT SANITASI LINGKUNGAN YANG BURUK : PARADIGMA BARU MITIGASI BENCANA Wibowo, Mardi
Jurnal Rekayasa Lingkungan Vol 6, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Indonesia’s disaster potential is very high and varied. Natural conditions, population and cultural diversity in Indonesia cause in increased risks due to natural disasters, man-made disasters and emergencies to be complex, on the other side Indonesia is rich in natural resources. Disaster relief should be directed from pre-disaster phase, during emergency response and post disaster. The initial phase of this effort is the need for understanding of all stakeholders (mainly institutions) about the development of the concept and paradigm change mitigation. By knowing the concept and development of this paradigm is expected that all stakeholders can do things from the smallest to the larger and synergies will occur from all stakeholders to minimize the impact of a disaster. From ancient times until now the concept of a paradigm in disaster management shift very rapidly starting from the conventional to the holistic paradigm. In general, the development paradigm is the conventional paradigm (relief & emergency), mitigation paradigm, development paradigm and paradigm of risk reduction. Paradigm that is now growing and effective enough to minimize the risk mitigation is the analogy of mitigation for diseases caused by poor environmental sanitation. The analogy with disease problems mentioned above, there are disasters which can now be viewed in the same perspective, where the current disaster is something that is not predictable and it is destiny or part of the risks of everyday life. The concentration of people and higher population levels worldwide would increase the risk of disasters and multiply the consequences of natural hazards as dangers that arise. However, based on science “of epidemiology disaster” actually most of these disasters can be prevented or at least many ways to reduce the impact of a disaster (mitigation actions). Like the war against disease, warfare should be fought against disaster by any person jointly and involve society as well as changes in social behavior as well as improvements in individual practices.Keywords : mitigation, disease, environmental sanitation, disaster
KAJIAN KARAKTERISTIK PERAIRAN TELUK SEMARANG UNTUK MENDUKUNG RENCANA PEMBANGUNAN DAM LEPAS PANTAI Wibowo, Mardi
Jurnal Rekayasa Lingkungan Vol 11, No 1 (2018): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

aat ini pesisir Teluk Semarang mengalami berbagai permasalahan yang sangat kompleks. Permasalahan tersebut adalah rob dan banjir, penurunan muka tanah, dan abrasi pantai. Untuk mengatasi permasalahan tersebut telah banyak konsep diusulkan dan yang paling mengemuka adalah konsep dam lepas pantai dan sabuk/ tanggul pantai sepanjang garis pantai. Untuk merencanakan pembangunan dam lepas pantai ataupun sabuk/ tanggul laut diperlukan data dan informasi terkait kondisi dan karakteristik perairan laut padahal data dan informasi terkait hal tersebut masih sangat terbatas. Oleh karena itu diperlukan survei dan kajian kondisi karaktersitik perairan laut di Teluk Semarang. Metodologi kajian ini adalah dengan mempelajari data hasil penelitian terdahulu, melakukan survey lapangan dan pengambilan sampel sedimen dasar dan sedimen layang serta melakukan analisis di laboratorium. Berdasarkan hasil kajian ini diketahui bahwa kualitas air laut di Semarang secara umum memenuhi baku mutu untuk kegiatan pembangunan pelabuhan, sedangkan untuk kegiatan wisata terdapat beberapa parameter yang melebihi baku mutu terutama yangberada di dekat muara sungai. Kondisi hidro-oseanografi perairan laut di Semarang adalah kecepatan arus kurang 50 cm/dt dengan arah dominan ke barat dan barat daya, kedalaman kawasan kajian mencapai -17 m, tipe pasang surut campuran dominan ke harian ganda. Konsentrasi sedimen melayang di peraiaran laut lepas berkisar 0,028 – 0,063 gr/l dan di sekitar muara berkisar antara 0,036 – 0,079 gr/l. Sedimen dasar tergolong pasir halus dengan d50 berkisar antara 0,1 – 0,23 mm.kata kunci : dam lepas pantai, kualitas air laut, hidrooseanografi
STRATEGI PENGEMBANGAN PULAU GEBE PASCA PENAMBANGAN NIKEL YANG BERKELANJUTAN Wibowo, Mardi
Jurnal Rekayasa Lingkungan Vol 5, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Since 1977 until 2005, PT. ANTAM has been exploited nickel ore resources at Gebe Island – Center of Halmahera District – North Maluku Province. Mining activity not only gives economically advantages, but also causes degradation of environment quality especially land quality. Therefore, it needs evaluation activity for land quality changing at Gebe Island after the mining activity (postmining). For handling Gebe Island after mining activity needs identification of the problems, potential and obstacles as the basic for arranging development strategy of Gebe Island. This research used Focused Group Discussion (FGD) method, desk study and field survey. Base on this research the important think has to be done, are : (a) to make or open new market at surround Gebe Island; (b) development Gebe Island has be base on locally resources and export oriented; (c ) needinvestor as prime mover in Gebe Island; (d) optimize of PT ANTAM’s asset; (e) increase institution coordination and program integration.Key words : sustainable development, post mining
EVALUASI PERUBAHAN KUALITAS TANAH PADA LAHAN BEKAS PENAMBANGAN NIKEL DI PULAU GEBE Wibowo, Mardi
Jurnal Rekayasa Lingkungan Vol 4, No 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Since year 1977 until 2005, PT. ANTAM has been exploited nickel ore resources at Gebe Island – Center ofHalmahera District – North Maluku Province. Mining activity, beside give economically advantages also causedegradation of environment quality espicially land quality. Therefore, it need evaluation activity for change ofland quality at Gebe Island after mining activity.From chemical rehabilitation aspect, post mining land and rehabilitation land indacate very lack and lackfertility (base saturated 45,87 – 99,6%; cation exchange capacity 9,43 – 12,43%; Organic Carbon 1,12 –2,31%). From availability of nutrirnt element aspect, post mining land and rehabilitation land indicate verylack and lack fertility (nitrogen 0,1 – 1,19%). Base on that data, it can be concluded that land reclamationactivity not yet achieve standart condition of chemical land.Key words : land quality, post mining lan
IDENTIFIKASI AKUIFER AIR TANAH DI KEC. TAMANSARI, KOTA TASIKMALAYA DENGAN METODE GEOLISTRIK Wibowo, Mardi
Jurnal Hidrosfir Indonesia Vol 4, No 2 (2009)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Along with increase in population and economic growth inTasikmalaya Residence cause the need of water is increased too.The majority these need take from groundwater resources.Occurrence groundwater resources depends on many factor likelandform (landscapes), geology, precipitation, land use, etc.Resistivity geoelectric survey (method) can detect groundwaterresources occurrence. The goals of this survey is to predict geometryand distribution of groundwater reservoir (aquifer). This survey useresisitivity method with Schumblerger Configuration. Generally,underground condition of Tamansari area consist of 4 layers oflithology i.e. pebbly sandstone, sandstone, clayey sandstone andsandy claystone. Sandstones have good potential as aquifer.Sandstone layer is evenly distributed in Tamansari area at depthbetween 1 m – 10 m. For shallow groundwater resources exploitationshould be directed at south east and south west part of Tamansariarea; while for deep groundwater resources exploitation can directedanywhere at depth more than 100 m.
KUALITAS AIR DI LAHAN BEKAS PENAMBANGAN NIKEL DI PULAU GEBE, MALUKU UTARA Wibowo, Mardi
Jurnal Hidrosfir Indonesia Vol 4, No 3 (2009)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Since year 1977 until 2005, PT. ANTAM has been exploited nickel ore resources at Gebe Island – Center of Halmahera District – North Maluku Province. Mining activity, beside give economically advantages also cause degradation of environment quality espicially water quality. Therefore, it need evaluation activity for change and compare of water quality at GebeIsland after mining activity. In this research we took a field survey and got 4 samples (1 samples for undisturbed water : Niwisyo Lake; 3 samples for disturbed water : Check Dam, Port and Turap Ponds). And then these samples were analyzed at BIOTROP laboratory. Base on this research, the water quality in Niwisyo Lake [only BOD parameter exceed standard] andCheck Dam were classified in Class I [only Ni concentration (0,213 mg/lt) and suspended solid (12,93mg/lt) have high value] , water in port was Class III [only DHL parameter (567 μS) has high value] and water ini Turap Ponds was Class IV [only BOD (18,43 mg/l) and DHL (497 μS) parameter have high value]. This condition may be caused the rehabilitation activity in GebeIsland has been succeded.
MODEL PENETUAN KAWASAN RESAPAN AIR UNTUK PERENCANAAN TATA RUANG BERWAWASAN LINGKUNGAN Wibowo, Mardi
Jurnal Hidrosfir Indonesia Vol 1, No 1 (2006)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Regional spatial planning is done for anticipate increasing and developpingsocial-economic activity. Generally, spatial planning tend to spatial valueand economic value, on the other hand environmental value is ignored. Forexample : in saptial planning is no space for conservation area for rechargearea. For determine (mapping) suitability a zone for recharge area needrequirements or a model for guidelines to determine recharge area. Generallyrequirements or parameter are used for mapping recharge area are materialpermeability, rain intensity, soil, slope and depth of groundwater surface.