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COASTAL USE CHANGE ANALYSIS, STUDY CASE: JAKARTA RECLAMATION PROJECT Ilham Armi; Wiwin Windupranata; Agung Budi Harto
Ensiklopedia of Journal Vol 2, No 3 (2020): Vol 2 No 3 Edisi 2 April 2020
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1692.672 KB) | DOI: 10.33559/eoj.v2i3.532

Abstract

Jakarta Bay is a very strategic area but with various problems. The reclamation project is expected to address various problems in the area. So, it is necessary to study whether the reclamation project is affecting the bay of Jakarta. One that can be researched is land-use change, in this case coastal use, to know whether there is any change in the land function in Jakarta bay. It can also be examined whether a reclamation project that has been going on so far will have an effect on some aspects of the area, either with its current state or in the future. To know the change of coastal land function, one of possible method is satellite image. Landsat satellite images can be used as data to see and compare whether there are changes in the function of coastal land in the bay area of Jakarta. From the results, it is known there are some changes in the function of land, although still limited to the islands of reclamation. Then by analyzing a number of aspects, it is known that the reclamation project will give some positive influence on the condition of the Jakarta Bay.
Oil Spill Detection using Sentinel-1 Multitemporal Data in Offshore Karawang Godfriend Junio S. Matahelemual; Agung Budi Harto; Tri Muji Susantoro
Scientific Contributions Oil and Gas Vol. 43 No. 2 (2020): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

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Abstract

Oil spill is a serious problem that could lead to economic and ecological losses, both in the shortand long term. On July 12, 2019, there occurred an oil leakage around YYA-1 oil platform of Pertamina HuluEnergi Offshore North West Java (PHE ONWJ), located off the northem coast of Karawang, Java Sea. Thisincident has caused the death of fishes and marine animals, damage to coral reefs, mangroves, and seagrass beds,and several health problems of Coastal communities. Therefore, it is necessary to map and monitor oil spills, sothat actions can be taken to prevent the spread of oil spills. This study aims to map the distribution of oil spillsin Karawang sea using multitemporal Sentinel-1 data from July to September 2019. The detection is carried outusing the adaptive thresholding algorithm combined with manual interpretation. The result shows that the oilspills spread around Karawang sea from YYA-1 platform to Sedari Village and there are oil spills spreading fromthe Central Plant F/S platform. The oil spills tend to shift westward from July to September 2019. This shifting issupposed to be influenced by current and wave factors that were dominant rnoving westward at that time. Basedon data processing, it was found that the oil spill area from July to September was respectively 24.79 km2, 20.05km2, and 27.12 km2.