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STUDY ON OCEANGRAFHIC AND WEATHER CONDITIONS RELATED TO THE ABUNDANCE OF SMALL PELAGIC FISHERY IN NATUNA SEA USING REMOTE SENSING DATA Prayogo, Teguh; Arthana, I Wayan
Ecotrophic, Journal of Environmental Science Vol 4, No 1
Publisher : Udayana University

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Abstract

Indonesian waters have abundance of natural resources; the potential of small pelagic fish in Natuna Sea and SouthChina Sea have not been optimized yet explores. Unfortunately, it was caused by lacking in the data of environmentalconditions that have been changed and the information of appropriate fishing ground. Hence, dynamical oceanographicinformation and weather condition is necessary to optimize small pelagic fish exploitation.Research location in Natuna Sea and its surrounding with geographical position is 08°N–03°S; 103°–111°E. Theoceanographic condition representative by monthly SST, Chl-a, SSH that derived from satellite data and Dipole ModeIndex for 2002-2007 from FRCGC website. Monthly wind data is variable for weather condition. Small pelagic fishabundance representative by annual fish production (2002-2005) and monthly Catch Per Unit Effort (CPUE) ofGoldstripe sardinella, Bigeye scad and Indian scad (2006). It was data collected from Directorate General of CaptureFisheries (Ministry of Marine Affairs and Fisheries) and daily fishing operation (2007) used to calculate match-up ratiothat was collected from Pemangkat fishing port in West Kalimantan. Research process consists of image processing,descriptive correlation analysis and GIS analysis to predict fishing ground map and match-up ratio calculation.Result of this research is the annual fish catch production of Bigeye scad and Indian scad (2002-2005) is tend toincrease and the monthly CPUE of both species is high during SE Monsoon (May-Sep) that is condition contrarily in NWMonsoon (Nov-Apr). Meanwhile, the annual fish catch production of Goldstripe sardinella production is tend to decreasefrom 2002-2005, it has CPUE is high in early SE Monsoon (May). During the SE Monsoon (May-Sep) when DM Index ispositive (+) the Indian scad and Bigeye scad production is high, for Goldstripe sardinella the fish production is highwhen DM Index is positive (+) in May. The accuracy of prediction map of small pelagic fishing ground in Natuna Sea isabout 0.61, 0.76 and 0.81 for Goldstripe sardinella, Indian scad and Bigeye scad, respectively.
SURVEI POTENSI PASIR KUARSA DI DAERAH KETAPANG PROPINSI KALIMANTAN BARAT Prayogo, Teguh; Budiman, Bayu
Jurnal Sciene dan Teknologi Vol 11, No 2 (2009): JURNAL SAINS DAN TEKNOLOGI INDONESIA
Publisher : Jurnal Sciene dan Teknologi

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Ketapang area is one of lower part or southern sub-province of West Kalimanatan Province, which is located geographically between 108o40’ and 111o20’ in Longitude and between 0o20’ and 3o04’ in Latitude. This area has various of industrial mineral resources, for example quartz sand. Quartz sand or also calledwith white sand is the reasult of rock weathering that contents main mineral, such as quartz, and felsdpar. Then, the result of weathering is cleaned and transported by water or wind and deposited in the stream side, lake or sea. In this paper will bedescribed concerning to locations, characteristics, and usages of quratz sand in Ketapang area, West Kalimantan Province. Based on chemical or laboratory analysis and interpretation, the quartz sands can be used as glass industry, cement industry material, and moulding industry.
PENERAPAN SISTEM INFORMASI UNTUK MANAJEMEN DATA MINERAL Prayogo, Teguh
Jurnal Sciene dan Teknologi Vol 11, No 2 (2009): JURNAL SAINS DAN TEKNOLOGI INDONESIA
Publisher : Jurnal Sciene dan Teknologi

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Mineral Information System (SIM) is an added value and integrated database system for mineral in Indonesia concerning with the availability of mineral resources, which encompasses the entire aspects of mineral commodity such as geology, mining, geography, exploration, exploitation, processing technology,statistics and its developments. The technologies used in the SIM development are appropriate technology, open platform, Visual Programming using Rapid Application Development tools, and Relational Database Management System (RDBMS). The SIM technology enables users to illustrate and display someinformations regarding to mineral resources easily and rapidly, i.e. local governments, investors, or persons who are interested in mining or mineral development. The SIM technology is benefit for decision makers to support a regulation or urban planning. In this paper, it will be described about visualization model of SIM in application desktop form.
EKSPLORASI SUMBERDAYA AIR TANAH DI DAERAH HANDIL BABIRIK KABUPATEN TANAH LAUT Prayogo, Teguh
JURNAL AIR INDONESIA Vol 4, No 2 (2008): JURNAL AIR INDONESIA
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

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Ground water is water located beneath the ground surface in soil pore spaces and in the fractures of lithologic formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. Ground water is alternative water to meet a demand of water supply, because the availability of surface water at an area is sometimes not enough to fulfill the need of drinking water, like occured in the Handil Babirik area. In this paper will be discribed concerning application of imaging resistivity technology for understanding characteristic and condition of ground water in Handil Babirik, Tanah Laut district, South Kalimantan Province. The result of survey in field, data processing, modelling and interpretation indicated that the existence of aquifer in Handil Babirik area is occupied between 30 – 40 meter depth and having a form of lens.
AKUISISI DATA SUMBERDAYA AIR TANAH DI DAERAH SUKODONO KABUPATEN PACITAN Prayogo, Teguh
JURNAL AIR INDONESIA Vol 5, No 1 (2009): JURNAL AIR INDONESIA
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

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The need of water for human life is very high, especially to meet a demand of water supply, such as for drinking water, washing, taking a bath, and etc. Unfortunately, the availability of surface water at an area is sometimes not enough to comply with a request of pure water, as happened in the Sukodono area. Hence, to avoid the problem, we focus at the ground water sources as alternative water supply. In this paper will be discussed exploration of groundwater that is accomplished with imaging resistivity technology to find out characteristic and condition of ground water in Sukodono, Pacitan district, East Java Province. Based on the result of survey in field and interpretation, the existence of aquifer in Sukodono area is occupied between 5 – 40 meter depth.
APLIKASI TEKNOLOGI EKSPLORASI UNTUK MEMAHAMI KONDISI AIR TANAH DI DAERAH PADANG LUAS KABUPATEN TANAH LAUT Prayogo, Teguh
JURNAL AIR INDONESIA Vol 5, No 2 (2009): JURNAL AIR INDONESIA
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

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Groundwater is water that comes from the ground. Groundwater comes from rain, snow, sleet, and hail that soaks into the ground. The water moves down into the ground because of gravity, passing between particles of soil, sand, gravel, or rock until it reaches a depth where the ground is filled, or saturated, with water. Groundwater is stored in the ground in materials like gravel or sand. Water can also move through rock formations like sandstone or through cracks in rocks. Groundwater is one of solution to overcome aproblem of the need of drinking water in the Padang Luas Area, because the availability of surface water is not enough. The objective of research is finding out characteristic and condition of ground water in Padang Luas, Tanah Laut district. To meet the objective, it was applied method of geophysical technology, namely electrical resistivity method by injecting current into the ground through current electrodes that are grounded at theearths surface and measuring the difference of the electrical potential between the potential electrodes. Based on data processing, modeling and interpretation, it was gained result concerning the existence of aquifer in Padang Luas area that is predicted to occupy between 30 – 60 meter and 70 – 120 meter depth.
APLIKASI SIG UNTUK MEMAHAMI FENOMENA TUTUPAN LAHAN DENGAN CITRA SATELIT Prayogo, Teguh
JURNAL TEKNOLOGI LINGKUNGAN Vol 8, No 2 (2007): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

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Seasonal characteristics of vegetation, such as growing season are closelyrelated to characteristics of the lower atmosphere, and are thereforeimportant variables in global models and vegetation monitoring. NormalizedDifference Vegetation Index (NDVI) data derived from the National Oceanicand Atmospheric Administration’s (NOAA) Advanced Very High ResolutionRadiometer (AVHRR) satellite sensor offer a means of efficiently andobjectively evaluating vegetation response over large geographic areas.Those vegetation responses were computed based on time-series NDVIdata collected from May 1997 to April 1998 over South East Asia. Measureof growing season was computed and analyzed for land cover type. It isdifficult if not impossible to objectively define an absolute the time of thegrowing season from satellite observations. The purpose of this paper isto determine the threshold of the growing season by using GeographicInformation System (GIS).
PEMETAAN GEOHIDROLOGI DAERAH DONOROJO KABUPATEN PACITAN Prayogo, Teguh
JURNAL TEKNOLOGI LINGKUNGAN Vol 10, No 1 (2009): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

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Water is a component in the earth that is very important for human life. The availability of water is always wanted to meet a demand of water supply, such as for drinking water, washing, taking a bath, and etc. Along with population growth, so the need of water will be still increasing, including Tanah Datar. In this paper will be described concerning to characteristics, and condition of water in Pacitan Area, East Java Province, especially Donorojo district. This location occupies geographically between the latitude of 00o17’ and 00o39’ south and the longitude of 100o19’ and 100o51’ east Based on survey in field, condition of aquifer in Telaga Banta is located in 20 – 60 meter depth, and the result of laboratory points to that the quality of water in this area meets the requirement for drinking water. The main uses of ground water include irrigation uses, drinking-water and other public uses, and for supplying domestic water to people who do not receive public-supply water. The majority of water used for self-supplied domestic and livestock purposes came from ground-water sources.
PENGEMBANGAN MODEL EKSTRAKSI SUHU PERMUKAAN LAUT MENGGUNAKAN DATA SATELIT LANDSAT 8 STUDI KASUS: TELUK LAMPUNG (DEVELOPMENT MODEL OF SEA SURFACE TEMPERATURE EXTRACTION USING LANDSAT- 8 SATELLITE DATA, CASE STUDY: LAMPUNG BAY) Arief, Muchlisin; Adawiah, Syifa W.; Parwati, Ety; Hamzah, Rossi; Prayogo, Teguh
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 12 No. 2 Desember 2015
Publisher : Indonesian National Institute of Aeronautics and Space (LAPAN)

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Abstract

Teluk Lampung merupakan daerah yang banyak memiliki keramba ikan kerapu, yang mana kualitas dan kuantitas airnya menjadi perhatian utama. Kualitas air ditentukan oleh faktor biologi, kimia, dan fisika. Salah satu parameter fisik adalah temperatur/suhu air. Banyak metode penentuan Suhu Permukaan Laut (SPL) menggunakan data satelit resolusi spasial menengah yang diturunkan dari satu band infra merah. Originality dari penelitian ini menggunakan fungsi yang diperoleh dari hasil korelasi antara temperatur pengamatan dengan temperatur kecerahan dari dua band infra merah. Tujuan penelitian ini adalah untuk mengembangkan pemodelan algoritma baru guna mengestimasi SPL menggunakan band 10 dan band 11 dari data satelit Landsat-8. Algoritma model ekstraksi SPL diperoleh melalui 3 tahapan, yaitu: Pertama melakukan koreksi geometrik dan mengkonversi nilai digital number ke nilai radiansi. Kedua adalah menghitung nilai temperatur kecerahan serta mengamati inteval temperaturnya. Kemudian mengkorelasikan temperatur pengukuran dengan temperatur kecerahan dari band 10 dan band 11, maka diperoleh persamaan polinomial orde 3 dalam 2 dimensi. Ketiga mengkorelasikan temperatur pengamatan in situ dengan temperatur kecerahan dari band 10 dan band 11 secara bersamaan (dalam 3 dimensi). maka diperoleh persamaan fungsi korelasi polinomial orde 3 dalam 3 dimensi. Fungsi untuk estimasi SPL adalah: T(X10,X11).= ?anXn10+bnXn11, yang mana koefisien/konstanta dari setiap orde ditentukan dari perkalian antara hasil perbandingan interval temperatur kecerahan (band 10 dan band 11) dengan konstanta setiap orde dari persamaan polinomial dalam 2 dimensi. Berdasarkan perbandingan antara temperatur hasil perhitungan dengan temperatur pengamatan, model estimasi SPL ini mempunyai kesalahan (RMSE) sebesar 21,15 % atau mempunyai ketelitian/akurasi sebesar 78,85 %.Kata-kunci: Algoritma, Landsat-8, Ekstraksi, Radiansi, Kecerahan temperatur, Polinomial, Suhu permukaan laut, Teluk Betung
METODE PENENTUAN TITIK KOORDINAT ZONA POTENSI PENANGKAPAN IKAN PELAGIS BERDASARKAN HASIL DETEKSI TERMAL FRONT SUHU PERMUKAAN LAUT Hamzah, Rossi; Marpaung, Sartono; Prayogo, Teguh
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 13 No. 2 Desember 2016
Publisher : Indonesian National Institute of Aeronautics and Space (LAPAN)

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Abstract

Information points coordinate of potential fishing zones (PFZ) is required by user that to be more effective in conducting fishing operation. The results of thermal front detection using single image edge detection (SIED) asshape contour lines. This research aims to determine points coordinate for potential fishing zone based on detection of thermal fronts sea surface temperatures.To determine point coordinate performed segmentation on detection result according to size fishnet grid. Contour line contained in each grid is a polygon shape.Centroid of each polygon is point coordinate of PFZ. The result of sea surface temperature data processing from Terra/Aqua MODIS and Suomi NPP VIIRS satellitesindicates that method of determination the centroid of polygon is very effective in determining the point coordinate of PFZ. Using that method the processing stages of satellite data to be faster, more efficient and practical due to the information of PFZ is already as points coordinate.Abstrak Informasi titik koordinat zona potensi penangkapan ikan (ZPPI) sangat diperlukan oleh pengguna agar lebih efektif dalam melakukan operasi penangkapan ikan. Hasil deteksi termal front menggunakan metode Single Image Edge Detection (SIED) dalam bentuk garis kontur. Penelitian ini bertujuan untuk menentukan titik koordinat ZPPI berdasarkan hasil deteksi termal front suhu permukaan laut. Untuk menentukan titik koordinat dilakukan segmentasi hasil deteksi sesuai ukuran fishnet grid. Garis kontur yang terdapat dalam setiap grid merupakan bentuk poligon. Pusat geometri dari setiap poligon merupakan titik koordinat ZPPI. Hasil pengolahan data suhu permukaan laut dari satelit Terra/Aqua MODIS dan Suomi NPP VIIRS menunjukkan bahwa metode penentuan pusat geometri poligon sangat efektif dalam menentukan titik koordinat ZPPI. Dengan menggunakan metode tersebut tahap pengolahan data satelit menjadi lebih cepat, efisien dan lebih praktis karena informasi ZPPI sudah dalam bentuk titik koordinat.