Perubahan luasan Pulau Pramuka, Pulau Panggang dan Pulau Karya  Kepulauan Seribu DKI Jakarta menggunakan data citra satelit penginderaan jauh

Ningsih, Ellis Nurjuliasti; Setiawan, Agus; Hartoni, Hartoni; Fauziyah, Fauziyah

doi:10.56064/jps.v23i2.628

Cited by 2 publications

(2 citation statements)

References 10 publications

(12 reference statements)

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“…The results obtained in this study had a significant difference with an additional area compared to planetscope imagery from 2019 and 2022, which has 21,05 Ha. However, the reduction in bare substrate area correlated with the prior study's findings 22 . The decrease in bare substrate area can be attributed to the growth of corals and macroalgae, evidenced by the overall increase in the total area.…”

Section: Random Forest Classificationsupporting

confidence: 77%

Assessment of seagrass coverage on Panggang Island and Karang Congkak Island: a comparison between pre and post COVID-19 pandemic using Planetscope imagery

Gustilasessio,

Wicaksono,

Djumanto

2024

Eighth Geoinformation Science Symposium 2023: Geoinformation Science for Sustainable Planet

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Seagrass beds are ecosystems that are sensitive to anthropogenic pressures. The restrictions imposed on human activities during the Covid-19 pandemic provide a unique opportunity for coastal ecosystems to recover. This situation presents a chance to monitor seagrass ecosystems on Panggang Island and Karang Congkak Island, aiming to observe any changes in the seagrass area. The method employed to ascertain the community structure involved photo transects, which were then processed using a machine learning supervised classification approach utilizing the random forest algorithm. The classification process categorized the area into five classes: seagrass, macroalgae, coral, bare substrate, and dead coral algae. Confusion Matrix Test was chosen to assess mapping accuracy, setting an accuracy threshold of ≥ 60%. The findings reveal notable alterations in seagrass areas across both islands. Panggang Island exhibited a considerable increase in seagrass coverage by 21,05 hectares. Conversely, Karang Congkak Island experienced a decrease of 2,88 hectares in seagrass coverage. These observed changes are likely not influenced by the anthropause phenomenon but rather by natural occurrences between 2019 and 2022, including the La Niña Triple Dip phenomenon and variations in sampling time during the transition season. The Overall mapping accuracy (OA) results for

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Section: Random Forest Classificationsupporting

confidence: 77%

Assessment of seagrass coverage on Panggang Island and Karang Congkak Island: a comparison between pre and post COVID-19 pandemic using Planetscope imagery

Gustilasessio,

Wicaksono,

Djumanto

2024

Eighth Geoinformation Science Symposium 2023: Geoinformation Science for Sustainable Planet

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“…Moreover, the under-control self-reclamation sacrifices the ideal marine ecosystem health in the region, which also influences the surrounding island communities for their economic income. For instance, the sand area (underwater) on Panggang Island was reduced significantly and transformed into seagrass, followed by deep sea water, and disappeared (Ningsih et al, 2021). Moreover, since 2000, the seaweed cultivation business in Panggang and Pramuka Island has entirely stopped because the yield has decreased due to the poor quality of the environment (Bahri et al, 2017) (Supplementary Table A5).…”

Section: Challenges On Local Adaptationmentioning

confidence: 99%

Seribu islands in the megacities of Jakarta on the frontlines of the climate crisis

Setiawati,

Chatterjee,

Djamil

et al. 2023

Front. Environ. Sci.

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Jakarta, the biggest city in Indonesia, has one district that consists of hundreds of islands that face severe climate hazards called the Seribu Islands complex. This study explores the evidence of local climate trends, the potential impact, and its policy intervention on Seribu Islands, which are classified as small island states and widely recognized as being especially at risk from climate change, threatening their economic and social growth. Long-term in-situ climate data, satellite data, interviews with local stakeholders, and literature reviews were utilized to conduct an exploratory descriptive analysis. The result revealed that Seribu Island experienced a 2.2°C increase in minimum temperature from 1980 until 2021, 3.5-fold of the frequency of extreme temperature and precipitation, 4.17 mm/year of sea level rise, and 10.8 ha land expansion in the densest island. Moreover, about 67% of the inhabitant’s islands were occupied by built-up areas that cover more than 50% of the region. Further, under the worst-case SLR scenario, about 58.4% of the area will be affected, and about 29 islands will disappear. This evidence was also reinforced by every single local respondent’s viewpoint who felt that climate change is occurring in the region. Even though the region faces a severe threat of climate change, the issue of climate change adaptation has not been mainstreamed yet into their local policy. Therefore, the urgency of a real-time climate ground station, a real-time early warning system, and establishing a Regional Disaster Management Agency (BPBD) at the district level have yet to be addressed. Furthermore, the knowledge gained from such case studies is outlined, along with some scientific evidence that may assist small island states in better fostering the opportunities provided by climate change adaptation.

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Perubahan luasan Pulau Pramuka, Pulau Panggang dan Pulau Karya Kepulauan Seribu DKI Jakarta menggunakan data citra satelit penginderaan jauh

Cited by 2 publications

References 10 publications

Assessment of seagrass coverage on Panggang Island and Karang Congkak Island: a comparison between pre and post COVID-19 pandemic using Planetscope imagery

Assessment of seagrass coverage on Panggang Island and Karang Congkak Island: a comparison between pre and post COVID-19 pandemic using Planetscope imagery

Seribu islands in the megacities of Jakarta on the frontlines of the climate crisis

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