Coastal Processes and Longshore Sediment Transport Along Krui Coast, Pesisir Barat of Lampung

Longshore sediment transport is one of the main factors influencing coastal geomorphology along the Krui Coast, Pesisir Barat of Lampung. Longshore sediment transport is closely related to the longshore current that is generated when waves break obliquely to the coast. The growth of waves depends upon wind velocity, the duration of the wind, and the distance over which the wind blow called fetch. The daily data of wind speed and direction are forecast from European Centre for Medium-Range Weather Forecasts (ECMWF). This study examines for predicting longshore sediment transport rate using empirical method. The wave height and period were calculated using Shore Protection Manual (SPM) 1984 method and the longshore sediment transport estimation based on the CERC formula, which also includes the wave period, beach slope, sediment grain size, and breaking waves type. Based on the use CERC formula it is known that from the Southeast direction (Qlst(1) ) the sediment transport discharge is 2.394 m3/s, in 1 (one) year the amount of sediment transport reaches 75,495,718 m3/s. Whereas from the northwest direction of (Qlst(2)) the sediment transport debit is 2.472 m3/s, in 1 (one) year the amount of sediment transport reaches 77,951,925 m3/s

A Review of the Travel Behavior Analysis: Its Basis and Application for Developing Cities

Travel, most often viewed in theory as derived from the demand for activity participation, has almost always been modeled on the trip-based basis, i.e., the trip is treated as the unit of analysis. Attributes of a trip (e.g., its origin and destination, mode, length) have been the subjects of analysis, but not the types of activities engaged in, their durations, sequences, and timing. This paper offers a brief review of the travel behavior analysis in order to provide a better understanding and forecasting of travel behavior. The article further offers discussions on its possible applications in urban areas of developing countries where historical accumulations of transportation and communications technologies are being introduced within a short span of time, creating the environment for travel which may not be properly accounted for using the conventional trip-based models of travel demand. In addition, the dataset from Malaysia was employed as a case of study

Analysis Of Shoreline Changes On Krui Bay, West Coast Of Lampung Province

Shoreline change is a natural process caused by the transported sediment generated by nearshore current to preserve the mass rates. Shoreline change can be a shoreline loss called abrasion as well as shoreline expansion due to sedimentation called accretion. Abrasion and accretion phenomenon can be regarded as a threat if they cause damage or potentially disrupts human activity. Identification of land use as well as geographical and physical condition of a region can be approached by satellite image analysis. This research uses Landsat Satellite imagery to observe shoreline changes based on the position of shoreline recorded through satellite images of 2004, 2010, and 2016. The image of one period overlapped with other period images is used to calculate the increment or decrease of shoreline occurring at a particular location. The results of this study will show the trend of increasing or decreasing the shoreline based on certain time and positio

Study of Protection Structures Planning for Krui Beach, Pesisir Barat Regency, Lampung Province

Labuhan Jukung Beach is one of the beaches in Kru, which is located on Krui Bay, West Coast District. This beach is a tourist beach directly adjacent to the Indian Ocean, so it has a high wave. Based on wind data from 2008 – 2017 that be analyzed in this research, Krui Beach has extreme wave height (25th return period) as big as 6 meters in deep-sea water and 3.4m in shallow water, consequently Krui Beach has the potential to erode To resolve these problems, must be built environmentally friendly coastal protection structure. The structure that can be used in this beach is groynes. Groynes serve as sediment traps and existence of groin does not disturb tourists who surf the beach. Based on HWS value and run-up wave calculation, the groin structure need to has elevation +10.3m from seabed, with armor weight is 6.3 ton

ANALYSIS OF SHORELINE CHANGES ON KRUI BAY, WEST COAST OF LAMPUNG PROVINCE

Shoreline change is a natural process caused by the transported sediment generated by nearshore current to preserve the mass rates. Shoreline change can be a shoreline loss called abrasion as well as shoreline expansion due to sedimentation called accretion. Abrasion and accretion phenomenon can be regarded as a threat if they cause damage or potentially disrupts human activity. Identification of land use as well as geographical and physical condition of a region can be approached by satellite image analysis. This research uses Landsat Satellite imagery to observe shoreline changes based on the position of shoreline recorded through satellite images of 2004, 2010, and 2016. The image of one period overlapped with other period images is used to calculate the increment or decrease of shoreline occurring at a particular location. The results of this study will show the trend of increasing or decreasing the shoreline based on certain time and positio

Evaluasi Kesesuaian Lahan Kentang Di Kawasan Relokasi Siosar Kabupaten Karo

Siosar relocation Region is located in the Subdistrict Merek in Karo with an altitude between 1490 - 1562 m above sea level. With this type of soil Andisol where land is hilly and undulating with a slope of + 37.5% and the climate type D3, leasing land from the Ministry of Environment and Forests covering an area of 144.44 ha reserved for heads of household 370 victims of the eruption of Mount Sinabung, through Decree of the Minister of the Environment life and Forestry No. SK.107 / MenLHK-II / 2015. This study aimed to evaluate the characteristics of the level of production forest land suitability for the cultivation of potatoes in the Region Siosar, to analyze the remedial efforts that need to be done in improving crop productivity and to create maps of the actual land suitability and potential land suitability potato plants. The method used was a survey method. unit of land based on soil map consists of 7 units of land analysis method is the method of comparing (matching). The results showed that the level of potential land suitability for crop potato plant (Solanum tuberosum) including marginally suitable (S3) covering an area of 156.54 ha, quite suitable (S2) covering 205.25 ha and is very suitable (S1) covering an area of 52.65 ha.Keywords: Evaluation of land suitability, production forests siosar, relocation eruption of Mount Sinabung, the cultivation of potatoes, sub brands Karo

Peran Komite Anti Dumping Indonesia (Kadi) Menangani Praktik Dumping Perdagangan China-Indonesia (Studi Kasus Polyester Staple Fiber Dari China Tahun 2009 – 2010)

Polyester Staple Fiber is a material that is produced from synthetic chemical and compound with various uses in industry phrase. There are states that export material of Polyester Staple Fiber to Indonesia like China, Taiwan, Thailand, South Korea, Malaysia and India. Among those states, dumping practices was found in Indonesian International trade which is implementing by the exporters. Dumping occur when a foreign company sells a product to the another state at less than fairmarket value. Loss caused to states who imports goods which contain dumping, therefor dumping is prohibited in International trade which have been mentioned by World Trade Organization (WTO).Dumping was done by China in the exporting activity of Polyester Staple Fiber. The lower price that is provided of China's Polyester Staple Fiber is the reason that makes the Indonesian consumer interested of buying it more than the inland production. That thing decrease the market share of the inland producers company and caused loss. To anticipate the increasing of loss, Indonesian Fiber Synthetic Producer Association (APSYFI) made a petition to the Indonesian Antidumping Committee.The petition of Indonesian Fiber Synthetic Producer Association (APSYFI) that was represented by two national Polyester Staple Fiber company which are PT. Teijin Indonesia Fiber Corporation (Tifico) and PT Indonesia Toray Synthetic (Toray) continue to an investigation in proving dumping containing of the China's Polyester Staple Fiber export. The end of the investigation, Indonesian Antidumping Committee recommended the antidumping duties of China's Polyester Staple Fiber export to the Minister of Commerce and Minister of Finance. This duties purposed to protect inland producers from the continue of loss that caused by dumping

Analisis Bioekonomi Model Copes Perikanan Demersal Pesisir Rembang

Perairan Rembang merupakan salah satu wilayah penyebaran ikan demersal yang cukup potensial di perairan utara Jawa Tengah, karena memiliki 28,54% hasil laut ikan demersal dari total produksi ikan demersal di Indonesia. Pemanfaatan sumberdaya ikan demersal hingga kini diusahakan oleh nelayan skala kecil dengan menggunakan alat tangkap seperti trammel dan cantrang. Dari tahun ke tahun terus mengalami peningkatan jumlah dan armada alat tangkap sehingga jumlah trip juga meningkat.sehinggasuatu saat nanti bisa terjadi penangkapan berlebih. Tingkat pemanfaatan sumberdaya ikan demersal di perairan Rembang belum diketahui kondisinya apakah sudah mengalami overfishing atau belum. Oleh karena itu perlu dilakukan penelitian mengenai tingkat pemanfaatan dilihat dari aspek biologi dan ekonomi di perairan Rembang. Tujuan penelitian ini adalah untuk mengidentifikasi potensi sumberdaya perikanan demersal di Kabupaten Rembang, mengaplikasikan metode Copes sehingga didapatkan upaya penangkapan (fopt), hasil tangkapan maksimum lestari (MSY), akses terbuka (OAE) dan kepemilikan tunggal (SO), dan menganalisis aspek biologi dan ekonomi pemanfaatan sumberdaya perikanan ikan demersal dengan daerah penangkapan perairan Rembang Kabupaten Rembang. Penelitian ini dilaksanakan pada bulan April 2013 di perairan Rembang, Jawa Tengah. Metode yang digunakan dalam penelitian adalah metode deskriptif. Hasil dari penelitian ini adalah Nilai rata-rata Catch per Unit Effort (CPUE) 71 kg/trip untuk cantrang dan 12 kg/trip untuk trammel, pada Maximum Sustainable Yield (MSY) sebesar 2.119.577 kg/tahun, Produksi optimal (COAE) pada Open Access Equilibrium (OAE) sebesar 405.743 kg/tahun dan effort optimum (EOAE) sebesar 71.641 alat Trip/tahun. Produksi optimal (CSO) pada Sole Ownership (SO) sebesar 2.114.194 kg/tahun dan effort optimum (ESO) sebesar 35.821 Trip/tahun. Rembang seawater is one area deployment potential of demercal fish in the waters north of Central Java, because it has a 28.54% yield of total sea demersal demersal fish production in Indonesia. The utilization of demercal fish resources up to now that cultivated by small-scale fishermen uses fishing gear as a trammel and a cantrang. Not only over the years that is constantly increasing in quantity and a fleet of fishing tools, but also an increase in trips of fishing so someday its cause over-fishing. On the other side, the resource utilization rate of Demercal fish in Rembang waters isn`t yet known the conditions that over-fishing or not. Therefore need to do research on the utilization rate is seen from the aspect of biology and economics at Rembang waters. The purpose of this research were to identify the potential of Demercal fisheries, applying of Copes model, fopt, Maximum Sustainable Yield (MSY), Open Access Equilibrium (OAE), and Sole Ownership (SO). To identify aspects of biology and economics in the utilization of Demercal fish at Rembang waters, Rembang regency. This research was held in April of 2013 at Rembang waters, Central Java. The method of the research used descriptive method. The results of this study were the average value of Catch per Unit Effort (CPUE) 71 kg / trip to cantrang and 12 kg / trip to trammel, the Maximum Sustainable Yield (MSY) of 2,119,577 kg / year, optimal production (COAE) on Open Access Equilibrium (OAE) of 405 743 kg / year and optimum effort (EOAE) of 71 641 tools Trip / year. Optimal production (CSO) in Sole Ownership (SO) of 2,114,194 kg / year and optimum effort (ESO) of 35 821 Trip / year

Studi Pola Sebaran Tumpahan Minyak Dengan Aplikasi Model Hidrodinamika Dan Spill Analysis Menggunakan Software Mike 21 Di Perairan Selat Rupat, Provinsi Riau

Berbagai aktivitas atau kegiatan industri seperti transportasi, penyimpanan, pengolahan dan distribusi minyak yang dilakukan di sekitar wilayah Selat Rupat, Provinsi Riau rawan terhadap pencemaran tumpahan minyak.Tujuan dari penelitian ini adalah untuk mengkaji pola sebaran tumpahan minyak mentah (crude oil), avtur dan diesel dengan pendekatan model hidrodinamika dan spill analysis menggunakan software MIKE 21.Data yang digunakan mencakup data primer dan data sekunder.Data primer yaitu data arus laut, pasang surut, dan suhu air laut.Sedangkan data sekunder yaitu data angin, batimetri, data volume fraksi minyak dan data port information.Hasil yang diperoleh menunjukkan tipe pasang surutnya pasang surut harian ganda (semi diurnal) dengan nilai bilangan Formzhal 0,2287. Pola arus didominasi oleh arus pasang surut dengan kecepatan arus maksimum berkisar 0,9286 m/s dengan arah menuju timur Selat Rupat. Pola sebaran tumpahan minyak mentah (crude oil), avtur, dan diesel saat pasang bergerak ke arah timur Selat Rupat, sebaliknya pada saat surut bergerak kearah barat Selat Rupat. Minyak mentah (crude oil) memiliki waktu pemaparan yang lebih lama yaitu + 380 jam dibandingkan waktu pemaparan minyak avtur dan diesel yaitu+ 285 jam