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Hasanuddin Z. Abidin
Geodesy Research Division, Faculty of Earth Sciences and Technology, Institut Teknologi Bandung, Ganesha 10, Bandung 40132, West Java, INDONESIA
Earth & Planetary Sciences

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Ketelitian Model Kinematik untuk Memprediksi Karakteristik Longsor (Studi Kasus : Zona Longsor di Ciloto-Puncak, Jawa Barat) Vera Sadarviana; Hasanuddin Z. Abidin; Joenil Kahar; Djoko Santoso; Wedyanto K
Indonesian Journal of Geospatial Vol 1 No 1 (2012)
Publisher : Indonesian Journal of Geospatial

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Abstract. The geodetic approach based on extraterrestrial survey measurements can be used to study phenomenon, especially to monitoring of material movement characteristic. Landslide is one of prominent catastrophe that continuously affecting in Indonesia, especially in rainy season. In mountainous terrain and areas of steep slope of Indonesia, landslides are frequent, especially where land cover has been removed. Landslides destroy not only environment and property, but usually also cause deaths. Landslide mitigation is therefore very crucial and should be done properly. The velocity and acceleration of several monitored point covering the landslide zone area can be estimated using the geodetic approach. Knowing the relation among these three variables in spatial and temporal domain will be useful for identifying the characteristics of landslide. This information can then be used for better strategy of landslide hazard mitigation. Accuracy of the use of kinematic models for prediction of avalanche characteristics need to be validated so that mitigation will be done correctly. Validation is done by doing a comparison between model predictions and the size of the data and statistical tests for the feasibility of prediction of each point of the GPS monitor. Validation is known that the predicted results at some GPS monitor point is not suitable for use. With the vector of the movement of materials, we know the direction and scalar, velocity and acceleration of material displacement. The movement of landslide materials at Ciloto Zone dominated north-west to south-easterly direction and speed to slow very slow (creep). Keywords: accuracy, characteristics, kinematic model, landslide.
Studi Pemantauan Penurunan Muka Tanah di Cekungan Bandung dengan Metode Survei GPS dan InSAR Irwan Gumilar; Hasanuddin Z. Abidin; L.M. Hutasoit; D.M. Hakim; Dina A. Sarsito; H. Andreas; Teguh P. Sidiq
Indonesian Journal of Geospatial Vol 1 No 1 (2012)
Publisher : Indonesian Journal of Geospatial

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Abstract. Land subsidence is a phenomena that has been commonly occurs in big cities around the world. Especially in Indonesia, Bandung as the one of big cities in Indonesia, has been identified for land subsidence. This land subsidence is suspected to ground water explotation by the factories which are located around Bandung basin. Land subsidence has caused many problems, such as damage to houses, buildings, and infrastructures (roads, bridges, etc.), and as the most serious problem is that land subsidence can increase the size of areas susceptible for flooding. In 2010 was noted that for almost the whole year, in the south Bandung experienced a terrible flood. Seeing the causes which is caused by land subsidence, it is a necessary to do charachteristic mapping of land subsidence. As one of the method that will be use for monitorizing the land subsidence is using GPS (Global Positioning System) survey and InSAR (Interferometry Synthetic Aperture Radar). In this paper, will be explained about land subsidence that occur in Bandung from GPS data. Keywords : GPS, groundwater, InSAR, land subsidence.
Co-Authors D.M. Hakim Dina A. Sarsito Djoko Santoso H. Andreas Irwan Gumilar, Irwan Joenil Kahar L.M. Hutasoit Teguh P. Sidiq Vera Sadarviana Wedyanto Kuntjoro