Trends in rainfall and hydrometeorological disasters in new capital city of Indonesia from long-term satellite-based precipitation products

Ramadhan, Ravidho; Marzuki, Marzuki; Suryanto, Wiwit; Sholihun, Sholihun; Muharsyah, Robi; Hanif, Muhammad

doi:10.1016/j.rsase.2022.100827

Cited by 17 publications

(25 citation statements)

References 74 publications

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“…In DJF and SON, the trend of CDD slightly decreases indicating more days with no rainfall in the seasons. Previous studies reported decreased trends of extreme rainfall over the IKN using 20-year of combined satellite and rainfall datasets 8,9 which contrast with our findings. The difference result occurs might be due to a longer dataset (43 years) of surface rainfall that we used in this study.…”

Section: Rainfall Distributioncontrasting

confidence: 99%

“…Contribution of frequency and intensity of rainfall possibly influences the drought impacting the availability of water in the IKN region. A previous study utilized satellite and three rain gauges data to analyze the trend of heavy rainfall characteristics over IKN between 2016-2020 and found that the trends slightly decrease 8 . Another study examined changes in land cover and deforestation affecting surface temperatures and extreme rainfall using several satellites during 2001-2020 and found that extreme number of very wet days (R95p), consecutive dry days (CDD), and max 1-day precipitation (RX1day) have decreased 9 .…”

Section: Introductionmentioning

confidence: 99%

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Drought index analysis on the Nusantara Capital City of Indonesia (IKN)

Sapan,

Winarno,

Meliani

et al. 2024

Eighth Geoinformation Science Symposium 2023: Geoinformation Science for Sustainable Planet

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The Indonesian Government have decided to relocate the capital city of Indonesia from DKI Jakarta to East Kalimantan Province in 2024. This new capital city of Indonesia called Nusantara Capital City (IKN) presents strategic issues regarding the lack of water availability and hydrometeorological disasters. Continuing the previous study about statistical comparison of rainfall extremes between Jakarta and IKN, this study on drought in IKN aims to investigate the water availability's condition by using drought index associated with rainfall intensity and number of no rain days. We analyze the trend of consecutive dry days (CDD), The highest one-day rainfall (RX1day), and Simple Precipitation Intensity (SDII) indices yearly and seasonally. The ground-based daily rainfall data at Sepinggan, Samarinda, Penajam Paser Utara, Balikpapan, and Sepaku during 1979-2022 (42 years) are used in this study. The Mann-Kendall method is carried out to detect the trend of each index. The preliminary results show that in general CDD shows no trend tendency over all stations. However, we found a tendency of a decrease CDD in Dec-Feb (DJF) and Sep-Oct (SON) indicating these periods have generally have no rainy days overall resulting in decreasing CDD relative to other seasons. However, the CDD tends to show a slight increase trend between 1980 and 2009. In 1997, the CDD index was exceptionally high coincided with El Nino event. In contrast, the SDII and RX1day tend to increase in Jun-Aug (JJA). This study has found that the yearly decreasing trend of CDD does not simply conclude that there is no contribution of CDD to drought events. Instead, the drought might be more related to high occurrence of CDD influenced by large scale events depending on season and topography. This research has provided basis knowledge about CDD associated with drought and should be beneficial to develop strategic plan for water availability and its impact on the forest fire mitigation management as well as reducing the hydrometeorological disasters which commonly occur over IKN and its surrounding areas.

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Section: Rainfall Distributioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Drought index analysis on the Nusantara Capital City of Indonesia (IKN)

Sapan,

Winarno,

Meliani

et al. 2024

Eighth Geoinformation Science Symposium 2023: Geoinformation Science for Sustainable Planet

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“…It is worth noting that the surroundings of IKN were primarily forested, which have been converted into plantations 52 . The area experiences the highest precipitation in March, averaging around 280 mm/month, which gradually decreases but remains relatively high, averaging around 225 mm/month in June 53 . This substantial precipitation likely contributes to the enhanced greenery and accelerated growth of vegetation, including grass and bushes.…”

Section: Resultsmentioning

confidence: 99%

Monitoring land cover change and its estimated carbon loss in the Nusantara capital city Indonesia on high-resolution planet satellite imagery

Chulafak,

Nugroho,

Sofan

et al. 2024

Eighth Geoinformation Science Symposium 2023: Geoinformation Science for Sustainable Planet

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Nusantara is a city currently under construction to serve as the future capital city of Indonesia, replacing DKI Jakarta. It is located on the island of Kalimantan/Borneo, approximately 1200 Km away from DKI Jakarta on the island of Java. Initially, a significant portion of the Nusantara Capital City was covered with forests and vegetation. The objective of this study is to assess the land cover changes occurring in the Nusantara Capital City using multi-temporal remote sensing satellite imagery. The satellite images used in this study are obtained from Planet's Doves satellite, which consists of four bands (Blue, Green, Red, and Near Infra-Red), as well as SuperDove, which offers eight bands (Ocean Blue, Blue, Green I, Green, Yellow, Red, Red Edge, and Near Infra-Red). Despite being categorized as small satellites, they have a high spatial resolution of 3-5 meters. Remote sensing indices were used to facilitate the land cover classification in areas of interest (AoI), especially the normalized difference vegetation index (NDVI), considering the nature of the land cover. Land cover changes from several different times, starting from 2021, were compared to determine the extent of changes that have occurred. The carbon stock loss in Nusantara was also approximated quarterly using NDVI. As of June 2023, the results indicate that approximately 8.3% of the total AoI has experienced a loss in vegetation, with the most significant decline observed in March 2023. These findings contribute to expanding our understanding of the evolving landscape in the Nusantara Capital City.

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“…The Indonesian government is considering building a new capital city because of environmental problems, the number of people living in cities, the risk of natural disasters, and the idea of sustainable development (Shimamura & Mizunoya, 2020;Baharuddin, Nurmandi, Qodir, & Jubba, 2022;Ramadhan et al, 2022). In addition, the development idea is also based on the national development equity plan and the development of a smart city system (Baharuddin et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Smart City Development in the New Capital City: Indonesian Government Plans

Rifaid

Abdurrahman

Baharuddin

et al. 2023

jcgpp

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The idea of a smart city and a new capital city in Indonesia is complex, so planning and the government's role are crucial. The purpose of this research is based on two big questions about the government's plan for preparing for development and the potential for smart city development in the new capital city. This study was done based on the results of a direct examination of official government documents using a thematic analysis approach and an analytical tool called Nvivo 12 Plus. This research was able to show what the Indonesian government's plans are and what they could do to build smart cities in the new capital city (IKN/Nusantara). The findings of this study map out six smart city support systems, which are the government's priority plans, including urban systems, safety and security, livability and urban life, government services, the environment and sustainability, and access and mobility. They all focus on technology adaptation, digitization, renewable energy, and sustainability. Despite these priority plans, there are still significant challenges to rethinking the prospects and potential for developing smart cities in the new capital city, especially the issues of human resources, budget capacity, infrastructure, and government bureaucratic adaptation patterns. This study proposes to set up a smart governance system to adapt to the new system, primarily to accommodate those problems and challenges. It can contribute to unravelling smart cities' complexities, challenges, and future development potential.

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Trends in rainfall and hydrometeorological disasters in new capital city of Indonesia from long-term satellite-based precipitation products

Cited by 17 publications

References 74 publications

Drought index analysis on the Nusantara Capital City of Indonesia (IKN)

Drought index analysis on the Nusantara Capital City of Indonesia (IKN)

Monitoring land cover change and its estimated carbon loss in the Nusantara capital city Indonesia on high-resolution planet satellite imagery

Smart City Development in the New Capital City: Indonesian Government Plans

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