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JURNAL ILMIAH GEOMATIKA

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Published by Badan Informasi Geospasial

ISSN : 08542759 EISSN : 25022180 DOI : -

Core Subject : Science, Education,

Earth & Planetary Sciences Mathematics

Geomatika (can be called Jurnal Ilmiah Geomatika-JIG) is a peer-reviewed journal published by Geospatial Information Agency (Badan Informasi Geospasial-BIG). All papers are peer-reviewed by at least two experts before accepted for publication. Geomatika will publish in two times issues: Mei and November.

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Articles 8 Documents

Search results for , issue " Vol 23, No 1 (2017)" : 8 Documents clear

KARAKTERISTIK ARUS LAUT PERAIRAN TELUK BENOA â BALI Tanto, Try Al; Wisha, Ulung Jantama; Kusumah, Gunardi; Pranowo, Widodo S.; Husrin, Semeidi; Ilham, Ilham; Putra, Aprizon
GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial in Partnership with MAPIN

ABSTRAKPerairan Teluk Benoa merupakan kawasan semi tertutup dengan mulut sempit yang memisahkan antara Pulau Serangan dan Tanjung Benoa. Arus laut perairan Teluk Benoa, yang dekat pantai berperan penting dalam proses transpor sedimen di daerah pantai yang merupakan daerah gelombang mulai pecah hingga ke arah garis pantai. Tujuan penelitian adalah mengetahui karakteristik arus laut yang terjadi, analisis dari penyajian secara scatter plot dan stic plot, sehingga diketahui faktor dominan pembangkit arus tersebut. Data arus laut diperoleh dari hasil pengukuran pihak swasta menggunakan alat ukur ADCP. Analisis arus laut dengan scatter dan stic plot untuk melihat arah dominan arus, serta melihat hubungan kejadian arus dengan pasang surut air laut, selain itu juga dengan perhitungan kisaran kecepatan arus yang terjadi selama pengukuran. Hasil yang diperoleh adalah arus laut di perairan Teluk Benoa berkisar antara 0,001 - 1,715 m/s (pengamatan bulan Juni - Juli 2015). Kecepatan arus pada mulut teluk lebih besar (maksimal sebesar 1,715 m/s), sedangkan di dalam teluk kecepatan arus lebih rendah (maksimal sebesar 0,883 m/s). Pada saat air pasang, arah arus dominan ke arah dalam teluk dan saat air laut surut arah dominan arus ke arah luar teluk. Kesimpulan yang diperoleh adalah kejadian arus laut di perairan Teluk Benoa lebih dominan berupa arus pasang surut. Saat kondisi bulan purnama kecepatan arus lebih tinggi dari pada saat posisi bulan separuh (kuarter pertama atau ketiga). Pada umumnya, pada mulut teluk memiliki arus yang cukup tinggi sebagai akibat celah sempit, dengan pola yang tidak beraturan akibat pengaruh perlintasan kapal dan aktivitas keluar masuk teluk.Kata kunci: arus laut, karakteristik arus laut, arus pasang surut, Teluk BenoaABSTRACTBenoa Bay waters is a semi-enclosed area with quite a narrow mouth that separates the Serangan Island and Tanjung Benoa. Ocean currents in Benoa Bay, which is close to the beach plays an important role in the process of sediment transport in the beach area where is the waves began to break up towards the shoreline. The research objective was to know the characteristics of ocean currents that occur, from the analysis of the scatter and stic plot, so itâs known that the dominant factor of the current generator. The data of ocean currents obtained from the measurement of private parties using ADCP measuring instrument. Analysis of ocean currents with scatter and stic plot to see the dominant direction of current, and to see the relationship of current occurrence with the tide, besides also with calculation of current velocity. The results obtained are ocean currents in the Benoa Bay waters ranged from 0,001 to 1,715 m/s (observations in June-July 2015). Flow velocity at the mouth of the bay is greater (maximum of 1,715 m/s), while in the lower bay flow speed (maximum of 0,883 m/s). At high tide, the dominant current direction towards the bay and vice versa during low tide predominant direction of flow towards the outside of the bay. The conclusion is the incidence of ocean currents in the Benoa Bay waters is predominantly influenced by the tidal current. When the full moon conditions the current velocity is higher than at half month position. In general, at the mouth of the bay has a current high enough as a result of the narrow gap, with irregular pattern due to the influence and activities of ship crossings in and out of the bay.Keywords: ocean current, characteristics of ocean current, tidal current, Benoa Bay

KENAIKAN MUKA AIR LAUT PERAIRAN SUMATERA BARAT BERDASARKAN DATA SATELIT ALTIMETRI JASON-2 Khasanah, Isna Uswatun
GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial in Partnership with MAPIN

The phenomenon of the sea level rise caused by many factors, one of which is global warming. Coastal areas are most vulnerable regions affected by sea level rise. Therefore, the information of sea level rise are used as consideration and policy-making on development plans for coastal areas like in West Sumatera Waters. The aims of this research are to identify the quality of Satelit Altimetry Jason-2 Data in West Sumatera Waters and to analysis the information of sea level rise of West Sumatera sea based on satelit altimetry Jason-2 data. Sea Level Rise in West Sumatera Water are identified by several steps, begin with collecting satellite altimetry Jason-2 data from 2008 to 2015 years. Then extraction Sea Surface Height (SSH) value of Â binary GDR data from Jason-2 by post processing to eliminate the geophysic errors, furthermore extraction undulation geoid value and calculating the Sea Level Anomaly (SLA) value. To identify the sea level rise value used linear regression analysis on the SLA data. Â The results of this research shown the existence of satellite altimetry Jason-2 data is 92.91%. The mean sea level rise in West Sumatera Waters during th period 8 year is 6.88 mm, and mean sea level rise of West Sumatera sea is 0.86 mm/year.

SPATIAL DISTRIBUTION OF SURFACE SALINITY AND TEMPERATURE IN BREBES SEAWATER USING SPATIAL ANALYSIS TOOLS â INVERSE DISTANCE WEIGHTED : ITS EFFECTS ON THE OTHER WATER QUALITY PARAMETERS Gemilang, Wisnu Arya; Wisha, Ulung Jantama
GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial in Partnership with MAPIN

ABSTRACTThe coast of Brebes is an important area for fishing activities. Along the coast of Brebes, there are mangrove conservation areas which part of green belt development program of Java Northern Coast. The purpose of this study was to determine the influence of salinity and temperature to the water quality conditions by employing a spatial analysis method. The measurement of water quality conducted by employing purposive sampling method. The sampling data was taken in the same time of 1 tide condition which forecasted before. The data were analyzed statistically and spatially using inverse distance weighted analysis. Temperature values ranged from 29.4 to 31.8 Â°C, conductivity ranged from 3.53 â 4.71 S.m-1 with, pH ranged from 8.04 to 8.52, DO ranged from 3.18 to 6.57 mg.L-1, salinity ranged between 22.9 â 32.8 â°, the value of salinity, temperature, and water quality parameters showed that the distribution is not uniform. It is influenced by the physical dynamics of sea water, which has an severe impact on the environment changes. Salinity and temperature have an impact to conductivity and DO variability but they are not affect the pH value. DO and pH value is higher than the previous research in Brebes waters.Keywords: brebes, coastal, spatial analysis, water qualityÂ ABSTRAKPesisir Brebes merupakan kawasan yang penting bagi aktivitas perikanan. Disepanjang pantai Brebes terdapat kawasan konservasi mangrove yang merupakan program pembangunan kawasan sabuk hijau Pantai Utara Jawa. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh salinitas dan temperature terhadap kondisi kualitas perairan dengan menggunakan analisis spasial. Pengukuran sampel air dilakukan dengan metode purposive sampling, pengambilan data berdasarkan peramalan pasang surut. Analisa data dilakukan secara statistic dan spasial dengan menggunakan analisa inverse distance weighted. Nilai suhu berkisar antara 29.8 â 31.8Â°C, konduktivitas berkisar antara 3.53 â 4.71 S.m-1, pH berkisar antara 8,52 â 8,04, DO berkisar antara 3.18 â 6.57 mg.L-1, salinitas berkisar antara 22.9 â 32.8 â°. Nilai dari salinitas, temperature dan parameter kualitas perairan menunjukkan bahwa sebaran konsentrasinya tidak merata yang dipengaruhi oleh dinamika fisis air laut dan keberadaan sungai-sungai utama yang berdampak pada perubahan lingkungan. Salinitas dan temperature memiliki dampak terhadap variasi konduktivitas dan DO, namun tidak terlalu berpengaruh terhadap nilai pH. DO dan pH mengalami peningkatan konsentrasi bila dibandingkan dengan penelitian sebelumnya di perairan Brebes.Kata Kunci: analisis spasial, brebes, kualitas air, pesisir, pencemaran

Front Cover GEOMATIKA Vol. 23 NO. 1 geomatika, redaksi
JURNAL ILMIAH GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial

ANALISIS KECEPATAN PERGERAKAN STATION GNSS CORS UDIP Yuwono, Bambang D; Awaluddin, M.; Hapsari, Widi
GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial in Partnership with MAPIN

ABSTRAKTeknologi GNSS berkembang pesat seiring dengan adanya sistem pengadaan titik kontrol dasar modern yang digunakan sebagai referensi untuk penentuan posisi. Sistem tersebut dikenal dengan CORS (Continously Operating Reference System ). Station GNSS CORS juga dikembangkan di Departemen Geodesi Fakultas Teknik UNDIP pada akhir tahun 2012 dengan nama CORS UDIP. Instalasi GNSS CORS UDIP didasarkan pada kebutuhan keperluan survei, model matematis geodesi, dan pemrosesan sinyal digital. Analisis terhadap kecepatan pergerakan stasiun GNSS CORS UDIP perlu dilakukan untuk keperluan tersebut. Tujuan penelitian untuk mendapatkan nilai kecepatan pergerakan stationÂ GNSS CORS UDIP periode 2013 s.d. 2016. Metode yang digunakan adalah pengolahan jaring dengan pengikatan ke 9 stasiun IGS. Hasil penelitian menunjukkan bahwa stasiun GNSS CORS UDIP dalam periode 2013 s.d. 2016 memiliki kecepatan pergerakan 0,08 cm dalam arah east dan 0,36 cm dalam arah north.Kata kunci: GNSS CORS, kecepatan pergerakan, pemrosesan data digital ABSTRACTGNSS technology is growing rapidly along with the procurement system of modern basic control points as a reference for positioning. This system is known as CORS (Continously Operating Reference System). GNSS CORS Station is also developed in the Department of Geodesy Faculty of Engineering UNDIP at the end of 2012. The GNSS CORS Station name is CORS UDIP. Installation of GNSS CORS UDIP is based on survey needs, geodetic mathematical models, and digital signal processing. An analysis of the movement speed of GNSS CORS UDIP stations is necessary for this purpose. Coordinate Sta GNSS UDIP was calculated using network processing method with 9 sta IGS (International GNSS Service) as reference stations. The results of analysis showedÂ that GNSS UDIP in the period of 2013-2016 had velocity rateÂ Â 0.08 cm in the east and 0.36 cm inÂ the north.Keywords: GNSS CORS,Â velocity rate, digital signal processing

Preface GEOMATIKA Vol. 23 No. 1 geomatika, redaksi
JURNAL ILMIAH GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial

ANALISIS GARIS ALTERNATIF BATAS KEWENANGAN PENGELOLAAN WILAYAH LAUT ANTARA PROVINSI PAPUA BARAT DENGAN PROVINSI MALUKU UTARA SECARA KARTOMETRIK Silalahi, Florence Elfriede S.; Hidayat, Fahrul
GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial in Partnership with MAPIN

ABSTRAKKetidakjelasan status wilayah administrasi pulau seringkali berdampak pada sengketa batas wilayah administrasi dan menghambat proses penegasan garis batas kewenangan pengelolaan wilayah laut daerah provinsi. Pulau Sain, Pulau Kiyas, dan Pulau Piyai yang terletak di antara daratan utama Provinsi Papua Barat dan daratan utama Provinsi Maluku Utara merupakan 3 pulau yang masih belum jelas status administrasinya, sehingga batas kewenangan pengelolaan wilayah laut daerah provinsinya perlu ditentukan. Diperlukan informasi mengenai kemungkinan-kemungkinan garis batas kewenangan pengelolaan wilayah laut sebagai masukan teknis dalam penyelesaian permasalahan tersebut melalui delineasi. Untuk batas di laut, delineasi dilakukan secara kartometrik karena lebih efisien. Tujuan penelitian ini adalah untuk mengetahui hasil delineasi garis batas kewenangan pengelolaan wilayah laut daerah provinsi Papua Barat dengan Maluku Utara dengan beberapa kriteria uji. Penelitian ini menggunakan metode kartometrik berbasis sistem informasi geografis, antara lain: analisis buffer, penarikan garis sama jarak/garis tengah murni (strict equidistance/median line) dan garis sama jarak/garis tengah yang disederhanakan (simplified equidistance/median line). Dari penelitian ini diperoleh tiga konstruksi garis batas kewenangan pengelolaan wilayah laut daerah Provinsi Papua Barat dengan Provinsi Maluku Utara. Masing-masing konsruksi garis batas dapat dijadikan sebagai alternatif dengan dasar geospasial dalam penegasan batas kewenangan pengelolaan wilayah laut.Kata kunci: Papua Barat, Maluku Utara, pengelolaan wilayah laut, garis sama jarak, delineasi, kartometrikABSTRACTUnclear administrationâs status of islands often raises a dispute for regional boundary and inhibits the process of regional maritime management authorities boundary determination. Sain, Kiyas, and Piyai Islands which are located between the mainland of West Papua Province and North Maluku Province were categorized as unclear administrationâs status islands, so the maritime management authorities boundary is unclear. The information of regional maritime management authorities boundary possibilities for those islands is needed for technical suport to solve problem through delineation. Cartometric method is used to delineate especially for sea boundary because it is more efficient. The purpose of this research was to know delinetation result of West Papua Province and North Maluku Province regional maritime management authorities boundary using several criterias. This research used cartometric based on geographic information system method i.e: buffer analysis, build the strict, and simplified equidinstance/median line in the process of boundary delineation. The results showed that there are three constructions of regional maritime management authorities boundary between Papua Barat - Maluku Utara Province. Every boundary line construction can be used as an alternative in geospatial aspect while the process of regional maritime management authorities boundary determination.Keywords: West Papua, North Maluku, maritime management authorities, equidistance/median line, delineation, cartometric

PREFACE GEOMATIKA VOL. 23 NO. 1 jurnal, Pengelola
GEOMATIKA Vol 23, No 1 (2017)
Publisher : Badan Informasi Geospasial in Partnership with MAPIN

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