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APLIKASI PENENTUAN PARAMETER TRANSFORMASI LOKAL BATU HIJAU UNTUK SURVEI DAN PEMETAAN AREA TAMBANG PT. NEWMONT NUSA TENGGARA Darmo Yuwono, Bambang; Marzuki, Amin
TEKNIK Volume 31, Nomor 1, Tahun 2010
Publisher : Diponegoro University

Most of mining technical activities, especially survey and mapping use local reference system, including inmining area Batu Hijau of PT Newmont Nusa Tenggara. While the data obtained by using GPS measurement,it should be transform from global coordinate system to local coordinatesystem.The process needstransformation parameters to do coordinate transformation. The object of this research is to build anapplication in determining transformation parameters from global system to local system and analyzeparameters of Batu Hijau of PT Newmont Nusa Tenggara. These transformation parameters are then expectedto be used for determining coordinate in local reference. The result can be obtained the most appropriate localparameters of Batu Hijau for surveying and mapping with geometric transformation accuracy.For this reaserch Melodensky Badekas 3D relatively better than Bursa Wolf 3D appropriate geometricaccuracy are SD 0.0919 m; RMSE 0.0322 m for the Melodensky Badekas and SD 0.2506 m; RMSE 0.0322 mfor the Bursa Wolf. Affine 2D relatively better than Helmert 2D are SD 0.3082 m; RMSE 0.0931 m for Affine2D and SD 0.3531 m; RMSE 0.1070 m for the Helmert 2D.

Analisis Cakupan Pelayanan Shelter Bus Trans Semarang Terhadap Kawasan CBD Menggunakan Network Analysis Tyas Arni Putri; Bambang Darmo Yuwono; Andri Suprayogi
Jurnal Geodesi UNDIP Volume 3, Nomor 1, Tahun 2014
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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In this moment, Semarang has a transportation mode that expected to answer the needs of the community, that is Bus Trans Semarang. Bus Trans Semarang use transportation system that called Bus Rapid Transit (BRT). BRT apply One Stop Bus system, the system that can make a bus only stop in order to take passengers in one object that called shelter. This system has function to avoid a long bus-runtime that caused from undiscipline passengers and traffic jam. But, one stop bus system also has weakness in BRT transportation system because the position of shelter as bus stoppage become the most important thing. If the position of shelter cannot serve many significant areas like CBD (Central Business District), this system cannot work properly.In this research, GIS with its network analysis facility can be used to find out,”is Bus Trans Semarang shelter service could serve people in CBD areas?” There is one realization metodology cconsist of 4 phase, there are data collecting, preparation, processing (network analysis using software ArcGIS), and analysis.The result after doing analysis with network analysis method about all shelter in coridor I and coridor II is 119 shelter, and 11 shelter do not serve CBD. So the writer suggest to add 8 shelter. 3 shelter in coridor I and 5 shelter in coridor II. In coridor I exist 4 optimum shelter, there are Simpang 5 shelter, Bukopin shelter, Gramedia shelter, and Pandanaran shelter.While in coridor II only has 1 optimum shelter, that is BDP Johar shelter.Keywods: Bus Trans Semarang, Network Analyst, Central Business District

Evaluasi Kesesuaian Lahan Tanaman Pertanian Berbasis Sistem Informasi Geografis Dengan Menggunakan Metode Fuzzy Set (Studi Kasus : Kecamatan Eromoko, Kabupaten Wonogiri) Bhekti Hapsari; Moehammad Awaluddin; Bambang Darmo Yuwono
Jurnal Geodesi UNDIP Volume 3, Nomor 1, Tahun 2014
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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Secara umum, Sistem Informasi Geografis merupakan alat berbasis komputer yang mampu memfasilitasi pemetaan dan melakukan analisis keruangan objek-objek di permukaan bumi. Sehingga sistem ini dapat untuk menganalisis kesesuaian lahan pertanian dengan menggunakan analisis spasial dan pencocokan antara data karakteristik lahan dari suatu daerah. Kesesuaian lahan merupakan kecocokan suatu jenis lahan tertentu untuk macam penggunaan tertentu. Pada tingkat kelas kesesuaian lahan dikelompokkan pada 5 kelas kesesuaian, yaitu S1 (sangat sesuai), S2 (cukup sesuai), S3 (sesuai marginal), N1 (tidak sesuai pada saat ini), dan N2 (tidak sesuai permanen). Dalam penelitian ini untuk penentuan kelas kesesuaian lahan pada satuan lahan hasil overlay peta dilakukan dengan analisis matching dengan menggunakan metode Fuzzy Set. Sehingga pihak pengambil kebijakan dapat menjadikannya sebagai salah satu dasar dalam perencanaan tata guna lahan, khususnya di sektor pertanian sebagai perwujudan optimalisasi hasil pertanian.Pada hasil dari analisis matching dengan menggunakan metode Fuzzy Set didapat suatu nilai dengan rentang dari 0 sampai dengan 1. Nilai inilah yang menjadikan suatu satuan lahan tersebut berada pada kelas kesesuaian lahan tertentu. Berdasarkan hasil analisis evaluasi kesesuaian lahan, untuk komoditas jagung, padi, cengkeh, cokelat, dan tebu di Kecamatan Eromoko berada pada kelas kesesuaian S1 (sangat sesuai) dan S2 (cukup sesuai). Sedangkan untuk komoditas kacang tanah, kedelai, bawang putih, dan kelapa di Kecamatan Eromoko berada pada kelas kesesuaian S1 (Sangat Sesuai). Kata Kunci : Kesesuaian Lahan, Evaluasi Lahan, Tanaman Pertanian, Hortikultura, Perkebunan, Sistem Informasi Geografis, Matching, Fuzzy Set.

PENENTUAN KOORDINAT DEFINITIF EPOCH 2013 STASIUN CORS GEODESI UNDIP DENGAN MENGGUNAKAN PERANGKAT LUNAK GAMIT 10.04 Edy Saputera Purba; Bambang Darmo Yuwono; L. M. Sabri
Jurnal Geodesi UNDIP Volume 2, Nomor 4, Tahun 2013
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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Perkembangan teknologi penentuan posisi dengan satelit Global Navigation Satellite System (GNSS) memunculkan sistem pengadaan titik kontrol dasar modern sebagai referensi penentuan posisi untuk pengukuran dan pemetaan yang bersifat aktif, terus menerus dan dapat diakses secara real time. Sistem titik kontrol modern tersebut adalah Continuosly Operating Reference Stations (CORS). CORS adalah salah satu teknologi berbasis GNSS yang dimanfaatkan untuk berbagai aplikasi terkait penentuan posisi. Stasiun CORS merupakan jaring kerangka geodetik aktif berupa stasiun permanen (base station) dilengkapi dengan receiver dan dapat menerima sinyal-sinyal dari satelit GNSS yang beroperasi secara kontinyu setiap hari.Stasiun CORS UDIP sudah beroperasi sejak desember 2012 di Program Studi Teknik Geodesi, Fakultas Teknik Universitas Diponegoro. Stasiun ini dapat berfungsi sebagai titik kontrol geodetik, sehingga perlu dilakukan pendefenisian koordinat definitif terhadap stasiun ini. Penelitian ini menggunakan data pengamatan GNSS pada bulan Februari dan Maret 2013. Pengolahan data menggunakan perangkat ilmiah GAMIT 10.04.Penelitian ini menghasilkan 2 koordinat yaitu koordinat yang bersifat statis dan dinamis. Koordinat statis yang mengikat ke DGN-95/Orde 1 Badan Informasi Geospasial (BIG) yaitu (X = 438136.37470; Y = 9220592.00180; Z = 243.05050). Koordinat dinamis yang mengikat ke ITRF2008 (X = 438135.0896; Y = 9220593.4225; Z = 243.2853). Hasil uji statistik menggunakan distribusi fisher dengan selang kepercayaan 95% bahwa antara 4 stasiun IGS dan 6 stasiun IGS merupakan suatu sistem dimana nilai perubahan koordinatnya hampir sama. Selisih koordinat stasiun CORS UDIP antara ITRF2008 dan DGN-95 adalah ± 90 cm.Kata kunci: Stasiun CORS, Koordinat Definitif, GAMIT

Analisis Pengaruh Panjang Baseline Terhadap Ketelitian Pengukuran Situasi Dengan Menggunakan GNSS Metode RTK-NTRIP (Studi Kasus: Semarang, Kab. Kendal dan Boyolali) Ega Gumilar Hafiz; Moehammad Awaluddin; Bambang Darmo Yuwono
Jurnal Geodesi UNDIP Volume 3, Nomor 1, Tahun 2014
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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Developments and requirement about mapping survei in Indonesia are getting faster and the lack of availability of basic point technique used as a point of the belt as well as the least amount of human resources who understand the job of mapping surveis, is one of the factors restricting to produce a map of the situation quickly (real time) and can also provide data quality and a good position. Then it needs a system of measurement that can give results that can satisfy the needs of mapping in Indonesia.Associated with these problems, in this final task has been carried research measurements using GPS CORS (Continuosly Operating Reference Stations) system. By analyzing the influence of the length of the baseline against the accuracy of the measurement situation using GNSS RTK-NTRIP method and using Total Station measurement data as definitive data.The purpose of this measurement is to know the horizontal, vertikal accuracy and scale for plotting the map. The results of analysis and statistical tests will be found horizontal accuration and vertical accuration )it is : the measurement with the long baseline 1 km has a value of = ±0,092 m and = ±0,047 m, with long baseline 15,6 km has a value of = ±0,181 m and = ±0,179 m, and with long baseline 57,6 km has a value of σHZ = ±0,765 m and = ±0,258 m. Refers to the accuration scale map, for long baseline 1 km include of 1: 500 scale map, while the long baseline 15,6 km include of 1: 1.000 scale map, and long baseline 57,6 km include of 1: 1.000 scale map.Keywords: Topographic Mapping, Measurements of GPS, GNSS, RTK (Real Time Kinematic), NTRIP (RTCM Transport Networked via Internet Protocol)

Penentuan Jalur Optimal Menuju Stasiun Kereta Api Tawang Kota Semarang Menggunakan Analisis Jaringan Nina Ratnaningrum; Bambang Darmo Yuwono; Moehammad Awaluddin
Jurnal Geodesi UNDIP Volume 3, Nomor 1, Tahun 2014
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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As the development of human life, roads as a means of transportation facing increasingly complex problems, which affect the use of the road network is mainly related to the travel time required to reach a location. Tawang railway station in Semarang City is one of the common facilities are often used by people as a long-distance mass transportation infrastructure During the development, people needs to reach Tawang railway station fast and optimal, views of time to reach the location at an interval of morning, afternoon, and evening.This research aimed to obtain information about the approximate travel time of traffic that will be very useful for the users of the road so that the road users can pick and choose the best travel interval at a predetermined route before traveling. Geographic Information Systems can be used as an alternative to analyze the road network and the travel time which determines the most optimal track towards the Tawang railway station, as well as analyzing the time the plan is prepared to road users could get the location on time. The calculation of travel time based on Travel Time Reliability that will give result Planning Time.The results obtained for an optimal route in the Mangkang Bus Station – Tawang Railway Station Route is via Jl. Imam Bonjol in the evening which has a length of 17.099 km road with Travel Time is 26.34 minutes, 48.79 minutes for Planning Time, and Validation Time is 30.81 minutes; the Terboyo Bus Station – Tawang Railway Station Route is via Jl. Letjend Suprapto at afternoon which has a length of 5.707 km road with Travel Time is 9.04 minutes, Planning Time is 16.79 minutes and 15.51 minutes for the Validation Time; the Penggaron Bus Station – Tawang Railway Station Route via Jl. Soekarno Hatta in the evening of a long road that has 10,694 km with Travel Time is 19.96 minutes, 35.82 minutes for Planning Time, and Validation Time is 20.49 minutes; and the Banyumanik Bus Station – Tawang Railway Station Route via Jl. MT. Haryono in the afternoon which has a length of 13.851 km road with Travel Time is 23.28 minutes, Planning Time is 48.79 minutes and 31.18 minutes for the Validation Time.Keywords : Geographic Information System, ArcGIS, Network Analysis, optimal track.

ANALISIS PENURUNAN MUKA TANAH DAERAH SEMARANG MENGGUNAKAN PERANGKAT LUNAK GAMIT 10.04 KURUN WAKTU 2008-2013 Aldika Kurniawan; Bambang Darmo Yuwono; L. M. Sabri
Jurnal Geodesi UNDIP Volume 2, Nomor 4, Tahun 2013
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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Penurunan muka tanah adalah suatu fenomena alam yang banyak terjadi di kota-kota besar yang berdiri di atas lapisan sedimen, seperti Jakarta, Semarang, Bangkok, Shanghai, dan Tokyo. Dari studi penurunan tanah yang dilakukan selama ini, diidentifikasi ada beberapa faktor penyebab terjadinya penurunan tanah yaitu : pengambilan air tanah yang berlebihan, penurunan karena beban bangunan. Dari tipe penurunan tanah ini, penurunan akibat pengambilan air tanah yang berlebihan dipercaya sebagai salah satu tipe penurunan tanah yang dominan untuk kota-kota besar.Penelitian ini menggunakan GPS yang disebar ke delapan titik pengamatan penurunan muka tanah yang dibagi menjadi tiga hari pengamatan, setiap pengamatan GPS berdurasi enam sampai delapan jam karena pengukuran geodinamika menggunakan GPS membutuhkan waktu minimal enam jam pengamatan. Pengolahan data GPS menggunakan perangkat lunak GAMIT 10.04 dan menggunakan metode pengolahan radial. Hasil pengolahan perangkat lunak GAMIT 10.04 berupa koordinat dan standar deviasi masing-masing titik. Penentuan nilai penurunan muka tanah daerah Semarang berdasarkan tinggi ellipsoid dari pengukuran tahun sebelumnya.Berdasarkan penelitian yang menggunakan perangkat lunak GAMIT 10.04 ini, didapatkan RMS rata-rata pengolahan titik pengamatan sebesar 4 – 5 milimeter. Hasil penelitian dengan menggunakan GPS, daerah semarang mengalami penurunan tanah dalam rentang variasi kecenderungan penurunan dari 2.2 milimeter sampai 17.2 sentimeter.Kata Kunci : Penurunan Muka Tanah, GPS, GAMIT 10.04

Pembuatan Program Perataan Parameter Jaring Poligon Dengan Menggunakan Visual Basic For Application (VBA) Microsoft Excel Eva Suci Lestari; L. M. Sabri; Bambang Darmo Yuwono
Jurnal Geodesi UNDIP Volume 3, Nomor 1, Tahun 2014
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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Least square method is one method most popular to problem-solving count flattening. The ordinal least quadrat in cases of the count of geodesy which simple, e.g. cutting measurement of angles, levelling and measurement of distances the base. A traverse do the count based on error angle of a polygon and distance results size reference to the terms of geometric polygons measured. Within adjustment required leveling high Count in the process of calculation. Therefore, the required computer technology in the process of doing the calculation so that the result is more precision. With the progress of the current process of computer calculations can be done quickly through programming. Program used as thesis harnesses Program macros with visual basic for application (VBA) programming language in microsoft Excel by using the polygon mesh data.Keyword : Least square method , Macro or VBA, Ms. Excel

Verifikasi Koordinat Titik Dasar Teknik Orde 3 dengan Pengukuran GNSS Real Time Kinematic Menggunakan Stasiun CORS Geodesi UNDIP di Kota Semarang Arinda Yusi Madena; L. M. Sabri; Bambang Darmo Yuwono
Jurnal Geodesi UNDIP Volume 3, Nomor 1, Tahun 2014
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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One of the tasks of BPN in Indonesia is doing the measurement of a Horizontal control points. The result of the measurement is a monument which has a definitive and coordinate values are implicitly understood by the term static datum. But in actual fact the Earth is dynamic and can be quantified as well, the position of the monument base or point of technique to physically change from time to time, consequently the coordinates values will change.Associated with these problems, in this final task has been carried research measurement Basic Point of Technique of Order 3 by using the system of CORS (Continuously Operating Reference Station). By conducting measurements of GNSS RTK method on the basic point of the order of 3 techniques analyzed how big a difference the coordinates of the measuring results and coordinates BPN.The results of this research show that result of plotting vector different coordinate value of Basic Point of Technique of Order 3 measurements of GNSS Real Time Kinematic method against of Basic Point of Technique of Order 3 BPN is not systematic in coordinate value. Keywords: Basic Point of Technique of Order 3, CORS, RTK.

Verifikasi TDT Orde 2 BPN dengan Stasiun CORS BPN-RI Kabupaten Grobogan Rizna Trinayana; Bambang Darmo Yuwono; L. M. Sabri
Jurnal Geodesi UNDIP Volume 3, Nomor 1, Tahun 2014
Publisher : Departement Teknik Geodesi Universitas Diponegoro

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GNSS CORS merupakan dasar dari penelitian verifikasi TDT Orde 2 BPN Grobogan dengan stasiun CORS BPN-RI Kabupaten Grobogan. Pengamatan dilakukan pada enam titik TDT orde 2 BPN menggunakan dua stasiun CORS berbeda yaitu stasiun CORS BPN Grobogan dan stasiun CORS BAKO. Koordinat yang dihasilkan akan dibandingkan dengan koordinat TDT orde 2 BPN. Pengolahan koordinat menggunakan software ilmiah GAMIT 10.4 (GPS Analysis Package Developed at Massachusetts Institute of Technology). Masing-masing kooordinat hasil pengikatan ke stasiun CORS dan BAKO akan dilakukan transformasi koordinat Affine dan Helmert.Berdasar standar deviasi yang diperoleh dari transformasi koordinat, koordinat hasil olahan dengan titik ikat CORS BPN menggunakan sistem transformasi helmert lebih bagus daripada koordinat hasil olahan dengan titik ikat CORS BAKO yaitu sebesar 0,00004204827821 m.Keywords : GNSS CORS, GAMIT, TDT orde 2, Transformasi Koordinat.

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