Coastal dynamic and shoreline mapping: multi-sources spatial data analysis in Semarang Indonesia.
Semarang coastal area has geomorphologically complex processes, such as erosion-sedimentation, land subsidence, and tidal inundation hazard. Multi-years shoreline mapping is considered a valuable task for coastal monitoring and assessment. This paper presents maps illustrating the shoreline dynamic in a coastal area of Semarang-Indonesia using multi-sources spatial data. The segment data has been obtained by visual delineation of the topographic maps Year 1908, 1937, 1992 and Ikonos image Year 2003 as well as digital number (DN) value analysis and masking operation of Landsat MSS Year 1972 and Landsat ETM Year 2001. For the long period of almost 100 year, the shoreline dynamic in Semarang coastal area is dominated by sedimentation process. Shoreline extended to the sea as a result of man-made infrastructure and natural processes. The research's result was satisfactory and the method has proven to be effective considering lack of homogeneous data-series. However, some further improvement regarding geo-processing can be made and the accuracy can be tested in future version.
Marfai
Muh Aris
MA
Institute of Geography, Justus-Liebig-University, 35390 Giessen, Germany. Muh.Marfai@geogr.uni-giessen.de
Almohammad
Hussein
H
Dey
Sudip
S
Susanto
Budi
B
King
Lorenz
L
D003247:Conservation of Natural Resources / Q000379:methods*; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods*; D007214:Indonesia; D008377:Maps as Topic; D009792:Oceans and Seas; D018531:Spacecraft; D013997:Time Factors