Made Ditha Ary Sanjaya, T. Aris Sunantyo, Nurrohmat Widjajanti


Many factors led to dam construction failure so that deformation monitoring activities is needed in the area of the dam. Deformation monitoring is performed in order to detect a displacement at the control points of the dam. Jatigede Dam deformation monitoring system has been installed and started to operate, but there has been no evaluation of the geometry quality of control networks treated with IGS points for GNSS networks processing. Therefore, this study aims to evaluate the geometric quality of GNSS control networks on deformation monitoring of Jatigede Dam area. This research data includes the GNSS measurements of five CORS Jatigede Dam stations (R01, GG01, GCP04, GCP06, and GCP08) at doy 233 with network configuration scenarios of 12 IGS points on two quadrants (jat1), three quadrants (jat2), and four quadrants (jat3 and jat4). GNSS networks processing was done by GAMIT to obtain baseline vectors, followed by network processing usingparameter method of least squares adjustment. Networks processing with least squares adjustment aims to determine the most optimal  by precision and reliability criterion. Results of this study indicate that network configuration with 12 IGS stations in the two quadrants provides the most accurate coordinates of CORS dam stations. Standard deviations value of CORS station given by jat1 configuration are in the range of 2.7 up to 4.1 cm in X-Z components, whereas standard deviations in the Y component are in the range 5.8 up to 6.9 cm. An optimization assessment based on network strength, precision, and reliability factors shows optimum configuration by jat1.


Jatigede dam; control network; IGS; GNSS

Full Text:



Artini, SR, (2014), GNSS CORS GMU1 Stations Positioning with Global and Regional GPS Control Point Combinations, PILAR Jurnal Teknik Sipil, 10(1), Yogyakarta.

Cetin, H., Laman, M., and Ertunc, A., (2000), Settlement and Slaking Problems in the World's Fourth Largest Rock-Fill Dam, the Ataturk Dam in Turkey, Engineering Geology, 56, pp. 225-242.

Grafarend, EW, (1974), Optimization of Geodetic Networks, Bolletino di Geodesia a Science Affini, pp. 351–406.

Haryanto, I., (2004), Tectonic Baribis-Cimandiri Fault, Annual Proceedings IAGI 33.

Herring, TA, King, RW, and McClussky, SC, 2006, Introduction to GAMIT/GLOBK, Department of Earth, Atmospheric, and Planetary Science, Massachusetts Institute of Technology.

Kuang, S., (1991), Optimization and Design of Deformation Monitoring Schemes, Dissertation, Department of Surveying Engineering Technical Report No.157, University of New Brunswick, Fredericton, New Brunswick, Canada, pp. 179.

Lestari, D., and Yulaikhah., (2013), Optimization of Horizontal Control Network Based on the Requirements of the Criteria Matrix for Geodynamic Studies in Opak River Faults, Research DPP of Vocational Schools, Gadjah Mada University.

Lestari, D., (2006), GPS Study for Resolving the Stability of Borobudur Temple Site, Thesis, School of Surveying and Spatial Information System, University of New South Wales.

Ma’ruf, B., and Rahman, M. A., (2009), Analysis of Baseline-per-baseline Baseline Processing and Session-per-sessions Techniques on GPS Network Adjustment, National Seminar on Data Revitalization Yogyakarta.

Nursetiyadi, R., (2015), The Effect of IGS Network Geometric to The Accuracy of Sangihe’s Islands Geodinamic Monitoring Points at Epoch, Undergraduate Thesis, Geodetic Engineering Department, Universitas Gadjah Mada, Yogyakarta

Panuntun, H., (2012), Determination of Offshore Platforms’ Coordinates using Regional And Global Reference Points, Thesis, Geomatic Engineering Study Program, Universitas Gadjah Mada, Yogyakarta.

Sunantyo, TA, Suryolelolo, KB, Djawahir, F., Swastana, A., Darmawan, A., and Adityo, S., (2012), Design and Installation for Dam Monitoring using Multi Sensors : a

Case Study at Sermo Dam, Yogyakarta, Indonesia, FIG Working Week, pp. 6–10.

Yalçinkaya and Teke, 2012, Strategy for Designing Geodetic GPS Networks with High Reliability and Accuracy, Hal 2-3.

Zakaria, Z., Ismawan, and Haryanto, I., (2011), Identification and Mitigation in the Earthquake Prone Zone in West Java. Bulletin of Scientific Contribution, 9(1), pp. 35–41.


  • There are currently no refbacks.