Geodetski list, Vol. 78 (101) No. 3, 2024.
Pregledni rad
Pseudo-Dynamics Identification (1817–2022) on the North Coast of Java (Pantura) using Dynamics Topography
Atriyon Julzarika
; National Research and Innovation Agency (BRIN), Cibinong, Indonesia
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* Dopisni autor.
Sažetak
Pantura is one of the regions on the north coast of Java Island that is vulnerable to subsidence disasters. However, in reality, subsidence and uplift occur in the form of emergent land due to high sedimentation rates. Subsidence and uplift are part of the earth's dynamic equilibrium in maintaining a ratio of water area of 71% to land area of 29%. This process gives rise to pseudo-dynamics, which are often overlooked, resulting in errors that frequently occur in disaster mitigation, regional planning, and infrastructure development. This research aims to identify the pseudo-dynamics in Pantura using dynamics topography. Dynamics topography is a geomodelling and geoforensics approach by integrating the latest DTM, time-series topography, and time-series vertical deformation (modified D-InSAR method) so that it is known how to classify the dynamics topography changes in the areas being studied. The data used are topography maps made in England (1817), topography maps made in the US Army (1944), Indonesia topography map (2018), WorldView 2/3 from World Imagery (2022), and Sentinel-1 (2017–2022). The research area is located in 26 regions, divided into the West Pantura (10 areas), the Central Pantura (8 areas), and the East Pantura (8 areas). The research results obtained three criteria for areas experiencing pseudo-dynamics, namely subsidence, uplift, and alternating subsidence–uplift. Areas experiencing subsidence (13 areas) are Tangerang–Jakarta, Jakarta, South Tangerang–Depok–Bogor–Bekasi, Jakarta–Bekasi–Citarum estuary, Pemalang–Pekalongan, Pekalongan–Batang, Batang–Kendal, Kendal–Semarang, Semarang, Semarang–Demak–Jepara, Lamongan–Gresik–Surabaya, Surabaya–Sidoarjo, and Sidoarjo–Pasuruan. The areas experiencing uplift (7 areas) are Seribu Islands (North), Seribu Islands (South), Karawang–Subang, Subang–Indramayu, Indramayu–Cirebon, Indramayu–Cirebon, and Karimun Jawa Islands. The areas experiencing alternating subsidence and uplift (6 areas) are Banten–Tangerang, Citarum estuary–Karawang, Brebes–Tegal, Tegal–Pemalang, Jepara–Pati, and Pati–Rembang–Tuban–Lamongan. The results of this pseudo-dynamics research with dynamics topography can be used to consider disaster mitigation and regional planning in Pantura.
Ključne riječi
pseudo-dynamics; dynamics topography; the north coast of Java (Pantura); subsidence; uplift
Hrčak ID:
322767
URI
Datum izdavanja:
30.9.2024.
Posjeta: 0 *