Regional Phenomena of Vertical Deformation in Southern Part of Indonesia

2nd Geoplanning - International Conference on Geomatics and Planning

Sarsito, D.A.^1 ; Susilo^2 ; Andreas, H.^1 ; Pradipta, D.^1 ; Gumilar, I.^1

Geodesy Research Division Faculty of Earth Science and Technology, Institute of Technology Bandung, LABTEX IXC, Jl. Ganesha 10, Bandung

40132, Indonesia^1

Geospatial Information Agency, Jl. Raya Jakarta-Bogor KM.46, Cibinong

16911, Indonesia^2

关键词: Continuous types;    GAMIT-GLOBK;    Geo-spatial informations;    International terrestrial reference frames;    Land subsidence;    Quality of data;    Vertical deformation;    Vertical displacements;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/123/1/012048/pdf
DOI  :  10.1088/1755-1315/123/1/012048

来源: IOP

【 摘 要 】

Distribution of present-day horizontal and vertical deformation across the Southern Part of Indonesia at Java, Bali and Nusa Tenggara now days can be determined from continuous and campaign types of GNSS GPS data monitoring. For vertical deformation in this case we use the continuous types since they are give better quality of data consistency compare to campaign type. Continuous Global Positioning System (CGPS) are maintaining by Geospatial Information Agency for more than a decade. The vertical displacements or velocity rates are estimated from time series analysis after multi-baseline GPS processing using GAMIT-GLOBK software with respect to the latest International Terrestrial Reference Frame. The result shows some interesting phenomena where the northern part of research area majority have negative value that may indicate land subsidence with or without tectonic subsidence combination. In the middle part, the uplift phenomena are clearly shown and in the southern part show combine pattern between uplift and subsidence. The impacts of those phenomena would be discuss also in this paper since many population and infrastructure are located in the areas that will need more protection planning to reduce the negative impact such as earthquake and flooding.