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All Journal Jurnal Geodesi Undip Elipsoida : Jurnal Geodesi dan Geomatika JGISE-Journal of Geospatial Information Science and Engineering
Laode M Sabri
Departemen Teknik Geodesi, Fakultas Teknik, Universitas Diponegoro
Earth & Planetary Sciences Education Engineering

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KAJIAN JALUR PELABUHAN “MARINE SCIENCE TECHNO PARK UNDIP” TELUK AWUR JEPARA MENGGUNAKAN MULTIBEAM ECHOSOUNDER (MBES) DAN SISTEM INFORMASI GEOGRAFIS Bandi Sasmito; Yudo Prasetyo; LM Sabri; Moehammad Awaluddin
Elipsoida : Jurnal Geodesi dan Geomatika Vol 1, No 02 (2018): Volume 01 Issue 02 Year 2018
Publisher : Department of Geodesy Engineering, Faculty of Engineering, Diponegoro University,Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (616.174 KB) | DOI: 10.14710/elipsoida.2018.3696

Abstract

Universitas Diponegoro mempunyai Science and Technological Parks (STP) yang dibangun di Teluk Awur, Jepara yang diberi nama Marine Science Techno Park (MSTP). Dalam lingkungan MSTP terdapat fasilitas dermaga yang kini tidak dipergunakan dan terbengkalai. Penelitian ini bertujuan untuk mengaji jalur pelabuhan menuju dan keluar dermaga MSTP dengan data-data baru sehingga dermaga dapat dipergunakan. Metode yang digunakan adalah pengukuran kedalaman dengan peralatan Multibeam Echosounder (MBES). Sedangkan metode penentuan jalurnya menggunakan pemodelan dengan teknologi Sistem Informasi Geografis. Hasil pengolahan yang diharapkan adalah model dasar perairan MSTP dan analisis penentuan jalur pelabuhan keluar masuk dermaga yang disajikan secara spasial (Peta Tematik). Hasil diharapkan dapat digunakan sebagai bahan pertimbangan dalam perancangan dan perencanaan revitalisasi MSTP dalam jangka panjang.Kata kunci :  Marine Science Techno Park, Multibeam Echosounder, Sistem Informasi Geografis             
Implementation of CORS GNSS and local geoid for precise orthometric height determination in land subsidence region (a case study in Semarang City) Laode M Sabri
Jurnal Geospasial Indonesia Vol 2, No 1 (2019): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jgise.40828

Abstract

Geoid has an important role in converting geodetic heights to physical heights, both in orthometric height system and normal height systems. At present, Semarang City already has gravimetric geoid with centimeter-level precision. This gravimetric was validated by geometric geoid measured by static method.  GNSS (Global Navigation Satellite System) measurement using static method needs long observation time and costly because it requires network that connect baselines and points. This study aims to implement CORS (Continous Operating Reference Station) GNSS in measuring geodetic height and to apply gravimetric geoid in orthometric height calculations. In this research, the gravimetric geoid recalculation process was carried out using gravity disturbance data of 2016. The geoid fitting process was carried out iteratively based on gravity data and modification of the integral of Hotine. Geodetic height measurements were carried out at 40 points distributed olong 50 km leveling network. Geodetic height measurements were refered to CORS GNSS of BIG (Geospatial Information Agency) and UNDIP (Diponegoro University) to produce standard deviation ranged from ±0.003 m to ±0.055. Geometric geoid checking with previous gravimetric geoid before fitting produced standard deviation of  ±0.037 m and  datum offset of -0.690 m. Geometric geoid checking for recent gravimetric geoid after fitting produces standard deviation of ±0.043 m and datum offset of -0.010 m. This study concluded that the refering geodetic coordinates to CORS stations by 1 hour observation of rapid static method and processing baselines in commercial software are sufficient for the determination of orthometric height in centimeter-level precision. This study also concluded that gravimetric geoid fitting based on gravity data shifting can minimize datum offset and shrinkage in geoid map.
Co-Authors Abdi Sukmono, Abdi Adzindani Reza Wirawan Andri Suprayogi Arief Laila Nugraha Bagas Setia Aji Bagas Yanna Aulia Fattaah Bambang Darmo Yuwono Bambang Sudarsono Bandi Sasmito Christovel Natar Pardo Dery Rizki Purwanto Dini Tiara Dito Seno Aji Dyto Elang Narendrasastri Eka Yuliandany Fauzi Janu Amarrohman, Fauzi Janu Febrina Mutiara Rosita Pane Firman Hadi Indira Nori Kurniawan Izzudin Al Qossam Jamal Jamal Jauhari Pangaribuan Jonathan Ardian Hendra Pranoto Kurniawan Adi Widiyanto Lisa Nur Nur Istiqomah Moehammad Awaluddin Moehammad Awwaluddin Naufal Ilyas Abdul Hakim Nur Aris Adi Nugroho Nurhadi Bashit ORY ANDRIAN APSANDI Panusunan Nauli Siregar Reza Nur Hidayat Sonny Mawardi Sry Suando Sinaga Tjiong Susilo Dinoto Try Jokosantoso Wahyu Entriana Kumala Dewi Wahyudi Adri Wening Aisyah Fauziana Koman Wikan Isthika Murti Yasser Wahyuddin Yudo Prasetyo