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International Union of Geodesy and Geophysics Indonesian National Committee International Union of Geodesy and Geophysics Indonesian National Committee Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 Introduction Asep Karsidi, President of the Indonesian National Committe for IUGG The Country Report for the IUGG General Assembly XXV at Melbourne, Australia prepared by the Indonesian National Committee for IUGG consists of reports for the associations: IAG, IAGA, IAHS, IAMAS, IASPEI and IAVCEI. 1. Country Report for IAG consists of two parts: A. Geodetic Activities in the National Coordinating Agency for Surveys and Mapping (BAKOSURTANAL) Real Time Coastal Sea Level Network Supporting Indonesian Tsunami Early Warning System Present Status of Indonesian Sea Level Monitoring Network The Airborne Gravity Survey for Regional Geoid Mapping B. 2. Research Activities conducted by the Institute of Technology in Bandung, they are about: Studying Land Subsidence In Semarang (Indonesia) Using Geodetic Methods Land Subsidence And Urban Development In Jakarta (Indonesia) Land Subsidence Characteristics Of Jakarta Between 1997 And 2005, As Estimated Using GPS Surveys Land Subsidence Characteristics Of The Bandung Basin, Indonesia, As Estimated From GPS And Insar Crustal Deformation Studies In Java (Indonesia) Using GPS The Applications Of GPS Cors In Indonesia: Status, Prospect And Limitation Land Subsidence Characteristics Of The Jakarta Basin (Indonesia) and Its Relation With Groundwater Extraction And Sea Level Rise 2. Country Report for IASPEI presents Development of New Seismic Hazard Maps of the Indonesian Region 3. Country Report for IAVCEI describes Volcanic Activity In Indonesia During Period of 2008-2011 2 Indonesia Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 4. Country Report for IAHS presents Research and development of space weather model and observation method in Indonesia during 2008-2010 5. Country Report for IAHS presents Impact of Climate Change on Water Resources In Java Island Groundwater management issues in the Greater Jakarta area, Indonesia 3 Indonesia Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 THE INDONESIAN NATIONAL COMMITTEE FOR IUGG (INC-IUGG) Adhering Organization: Indonesian Institute of Sciences (LIPI) Jl. Jend. Gatot Subroto No. 10 Jakarta 12710, Indonesia President Asep Karsidi Head of National Coordinating Agency for Surveys and Mapping (BAKOSURTANAL), Jl. Raya Jakarta-Bogor km.46 Phone : (+62 21) 8752062 Fax. : (+62 21) 8752064 E-mail: [email protected] Vice Iskandar Deputy Chairman for Earth Sciences. President Zulkarnain Indonesian Institute of Sciences Jl. Jend. Gatot Subroto No. 10 Jakarta 12710, Indonesia Phone : (+62 21) 5225711 Fax. : (+62 21) 5207226 E-mail: [email protected] [email protected] Secretary : Eddy Priyanto Head of Center for Geodesy and Geodynamics, National Coordinating Agency for Surveys and Mapping (BAKOSURTANAL), Jl. Raya Jakarta-Bogor km.46 Phone : (+62 21) 8757329 Fax. : (+62 21) 8757329 E-mail : [email protected] NATIONAL CORRESPONDENTS OF ASSOCIATIONS IAG Hasanuddin Z. Dept. of Geodetic Engineering, Abidin Institute of Technology of Bandung, 4 Indonesia Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 Jl. Ganesa 10, Bandung 40132 Indonesia Phone : (+62 22) 2534286 Fax : (+62 22) 2534286 E-mail: [email protected] IASPEI Sri Dept. of Geophysics and Meteorology Widiyantoro Institute of Technology of Bandung, Jl. Ganesa 10, Bandung 40132 Indonesia Phone : (+62 22) 2500494 Fax : (+62 22) 2534139 E-mail: [email protected] IAVCEI Surono Center for Vulcanology and Geological Hazard Mitigation, Geological Agency, Dept. of Energy and Mineral Resources Jl. Diponegoro Bandung12810, Indonesia Phone : (+62 22) 7272606 Fax : (+62 22) 7272606 E-mail : [email protected] IAGA Buldan Muslim Dr. Buldan Muslim National Institute of Aeronautic and Space (LAPAN), The Space Science Center Jl. Dr. Djundjunan 133 Bandung 40173, Indonesia Phone : +62 22 6014998 Fax : +62 22 6014998 E-mail : [email protected] IAMAS Prih Haryadi Meteorological Climatological and Geophysical Agency (BKMG) Jl. Angkasa I No. 2, Kemayoran Jakarta 10620, Indonesia Phone : (+62 21) 6540158 Fax : (+62 21) 6540158 E-mail : [email protected] 5 Indonesia Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 IAHS Arie Setiadi Research Institute for Water Resources Moerwanto Jl. Juanda No. 193, PO Box 51 Bandung 40135, Indonesia Phone : (+62 22) 2501533, or (+62 22) 2501544 Fax : (+62 22) 2500163 Email : [email protected] IAPSO Safwan Hadi Dept. of Geophysics and Meteorology Institute of Technology of Bandung Jl. Ganesa 10, Bandung 40132 Indonesia Phone : (+62 22) 2500494 Fax : (+62 22) 2534139 E-mail: [email protected] 6 Indonesia Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 Activities Report for IAG Geodetic Activities in the National Coordinating Agency for Surveys and Mapping (BAKOSURTANAL) Khafid National Coordinating Agency for Surveys and Mapping (BAKOSURTANAL), Jl. Raya Jakarta-Bogor Km 46 Cibinong INDONESIA. Email: [email protected] Background National Coordinating Agency for Surveys and Mapping (BAKOSURTANAL) is the Government institution that formulates the macro and national level policies governing survey and mapping in Indonesia. The agency works with a mission to build National Spatial Data Infrastructure (NSDI), which covers elements of institutional, regulation, spatial main data, human resources, and research and development in the field of survey and mapping. BAKOSURTANAL has duty to conduct governmental duties in the field of surveys and mapping according to prevailing regulation. Its Functions are 1) . to assess and create national policies is surveys and Mapping; 2). to develop national spatial data infrastructure (NSDI); 3). to coordinate functional activities in conducting BAKOSURTANAL task; 4). to monitor, guide and maintain activities of government institutions in the field of national surveys and mapping; and 5). to organize, develop and serve in the field of general planning, management, organization, personnel, financial, archive, regulation, code, and internal affair. In order to fullfil its task, BAKOSURTANAL establish Geodetic Network covered whole Indonesia. The Network consists: National Vertical Control Network National Horizontal Control Network National Gravity Control Network National Sea Level Monitoring Network As known, The islands of Indonesia lie at the junction of the Eurasia, Australia, Pacific, and Philippine Sea plates, resulting in rugged topography, frequent earthquakes, and active volcanism. In the west, the Australia plate is subducted beneath the Eurasia plate along the Java trench. The direction of convergence is normal to the trench of Java, but oblique to the trench southwest of Sumatera. Further east, the island of New Guinea, the leading edge of the northward moving Australian continent, is dominated by the rapid oblique convergence (110mm/yr) between the Pacific and Australian plates. The oblique convergence has 7 Indonesia Country Report IUGG General Assembly Melbourne, Australia June 28 – July 7, 2011 produced a complex array of microplates whose motions result in rapid shear, arc- continent collision, oceanic and continental subduction, continental rifting, and seafloor spreading. In West Papua a large section of the continent (the Bird’s Head) is being detached along a rapid (80mm/yr) shear zone and subducted at Seram trough. The complexity of tectonic processes in Indonesia was recognized by geologists long before the widespread acceptance of the theory of plate tectonic and has resulted in numerous geologic and geophysical studies in the region. Geodetic data with the level of precision available using Global Positioning System (GPS) give us the opportunity to address many outstanding issues by providing two important number of information. First, geodetic data enable us to directly estimate recent rates of plate motion. Second, geodetic data can provide an estimate of the regional horizontal surface velocity field that may be used in constructing and maintaining geodetic datum that take account of Earth deformation. We have conducted GPS studies throughout Indonesia and South and Southeast Asia for the last ten years. For the first time, we integrate the information from these GPS data to gain a more complete picture of tectonic block interactions in the Indonesia region. And then incorporate velocity solutions from each of tectonic block into velocity model by repeated GPS surveys. The reference frame used in the analysis of the entire Indonesia GPS data set is the 2000 International Terrestrial Reference Frame (ITRF2000) computed by the International Earth Rotation Service (IERS). The Current Status of Indonesian permanent GNSS stations network The objectives of main Maintenance of permanent GNSS stations network are as follows: To maintain national geodetic reference frame in active seismic zones for survey and mapping purposes, Mitigation, Crustal deformation monitoring for geological hazard mitigation Sea level change monitoring with continuous GPS and Tide Gauge stations collocation, GPS Meteorology to determine PW in the troposphere and TEC in the ionosphere, GPS for safety navigation. Permanent GPS station is part of the Ina-TEWS (Indonesian Tsunami Early Warning System) Maintenance of a national geodetic reference frame, which refers to the global geodetic
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