📋 Tender Overview
Tidal floods or high tides hit several areas of the North Coast of Java Pantura such as in Semarang Demak Pekalongan Rembang and Brebes since Monday 235. The Geological Agency of the Ministry of Energy and Mineral Resources ESDM stated that the tidal flood was caused by a combination of climate change and land subsidence.Indeed the tidal flood in the northern coast of Java is a combination of land subsidence and climate change. In some areas if there is no land subsidence flooding can still occur but the effect may not be as great as with land subsidence. Land subsidence in Central Java from the results of our research it is more due to the characteristics of the soil or rock because natural consolidation does occur explained the Head of the Center for Groundwater and Geology of Environmental Management Rita Susilawati at a press conference Tuesday 315.To mitigate the tidal flood disaster the Geological Agency provides recommendations among others by making a map of the distribution of soft soil and identifying the depth of soft soil.Regionally we already know the map of the distribution of soft soil but we are continuing to carry out more detailed mapping. Then we also carry out engineering geological investigations to find out the importance of development on soft soil and conduct seismic mapping from the results of the mapping we can identify the distribution soft soil and subsurface engineering geology properties continued Rita.In addition measurementmonitoring of the rate of land subsidence is also carried out prioritizing the use of surface water sources controlling groundwater use according to groundwater conservation zoning and constructing embankments taking into account the rate of land subsidence.Then the most important thing is of course to make spatial arrangements and infrastructure development planning by considering the subsurface engineering conditions of soft soil areas. Of course the arrangement and development as well as technological engineering must be based on recommendations from geological conditions he added.Similarly the Secretary of the Geological Agency who is also Plt. Head of the Center for Marine Geological Survey and Mapping Ediar Usman also recommended that tidal flood disaster mitigation efforts be carried out in a more integrated manner by understanding geological and oceanographic conditions as well as coastal dynamics.The common perception and coordination between relevant agencies and all elements of society are also needed to find optimal solutions. The mindset and lifestyle of the local community must apply a clean lifestyle in their respective environments and be able to adapt to the environment. City space in the coastal area is well-organized for residential areas industry ports tourism fishing and fisheries said Ediar.Ediar also revealed that the potential for tidal flooding could still last until June. Therefore the public is advised to be careful especially when they are on the beach. Environmental arrangements and drainage can also offset the potential for high tides and puddles during the rainy season.If we look at the climatic conditions as conveyed by BMKG that a season like this may last until June so there is still the potential for tidal flooding until June. Therefore we are advised to be careful especially on the shoreline. Thats the beach that there is a sudden rise in sea level and that of course also endangers all of us said Ediar.The public is also advised to follow directions from the local regional government especially the regional and central disaster management agencies such as the BMKG BNPB and also the geological agency which can be seen on the website and social media of the geological agency.For information Physiographically the city of Semarang and other cities located on alluvial plains is the result of sediment originating from the highlands as a result of transportation through rivers and waves in coastal areas. The sediments in this alluvial plain originate from the North Serayu Mountains in the south and are bounded by the Kendeng hills in the east and face the Java Sea in the north. Coastal areas are characterized by alluvial deposits mud mangrove plants sandy and rocky beaches referred to as marine sediments.From the results of field investigations conducted by the Center for Research and Development of Marine GeologyMarine Geological Survey and Mapping Center BBSPGL shows that in general the development and use of land in Pantura Central Java currently causes unconsolidated sediments to experience consolidation compaction but in certain areas settlements the decline is of course faster because there is a load on it so that compaction occurs faster. So in addition to naturally occurring the presence of buildings on it will accelerate land subsidence in the north coast under high tide conditions. DKD
