The Impact of Tropical Cyclone Seroja to The Rainfall and Sea Wave Height in East Nusa Tenggara

Kurniawan, Roni; Harsa, Hastuadi; Nurrahmat, Mohamad Husein; Sasmito, Achmad; Florida, North; Makmur, Erwin Eka Syahputra; Swarinoto, Yunus Subagyo; Habibie, Muhammad Najib; Hutapea, T F; Sudewi, Rahayu Sapta Sri; Fitria, Welly; Praja, Alfan Sukmana; Adrianita, Fera

doi:10.1088/1755-1315/925/1/012049

Cited by 5 publications

(6 citation statements)

References 11 publications

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“…The increase in coral cover was dominantly shown by Acroporidae and Pocilloporidae, which is known as coral that has fast-growing rates with average growth rates of 100-150 mm/year and 50 mm/year, respectively (Siqueira et al 2022). The natural disturbances were recorded in East Sumba before the survey in 2021, such as rising sea surface temperature (alert level 2 bleaching) at the end of 2020 and the Seroja cyclone in early 2021 (Kurniawan et al 2021). As the study was not conducted in 2020, the increase in coral cover in 2021 cannot be categorized as recovery from the disturbances.…”

Section: Discussionmentioning

confidence: 99%

Changes in reef benthic communities in Sumba Timur, East Nusa Tenggara, Indonesia

Utama¹,

Hadi²,

Hermanto³

et al. 2023

Biodiversitas

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Abstract. Utama RS, Hadi TA, Hermanto B, Giyanto, Budiyanto A. 2022. Changes in reef benthic communities in Sumba Timur, East Nusa Tenggara, Indonesia.Biodiversitas 23: 677-687. Anthropogenic impacts and coral bleaching due to rising sea surface temperature have been severe and often, as of late on the worldwide scale, influencing the composition of coral reef benthic communities from coral to algal-ruled reefs (phase shift). In any case, coral reef phase shift does not continuously happen, considering corals can recoup when stressors occur. This considers points to examine the alteration in coral reef benthic communities and the relationship among benthic categories. The study was carried out in 2018 and 2021 at 10 stations within East Sumba, and East Nusa Tenggara. Underwater photo transect (UPT) was used to examine benthic cover at a depth of 6 to 9 m in reef slope. The result demonstrated that the benthic communities were slightly altered, especially hard coral, sponge, and other biotas. A slight recovery of hard coral cover is shown in 2021, followed by the decline of sponge and fleshy seaweed cover, which is shown in most observation sites. Acropora spp., Seriatopora spp., and Stylophora spp. were the three genera that increased in cover. The study also found the relationship between the benthic gradient and species richness and the number of colonies, which is gradient changes in benthic composition were in line with the change in hard coral species richness and colony numbers. Although hard coral increase significantly changes over time, it's not altered the coral communities.

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Section: Discussionmentioning

confidence: 99%

Changes in reef benthic communities in Sumba Timur, East Nusa Tenggara, Indonesia

Utama¹,

Hadi²,

Hermanto³

et al. 2023

Biodiversitas

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“…The storm is estimated to have caused beyond $490.7 million in damages [4]. The storm surge has generated extreme rainfall and high sea waves that impacted coastal erosion, ecosystem change, coastal flooding, and infrastructure damage [5]. The Regional Disaster Management Authority (Badan Penanggulangan Bencana Daerah, hereafter called BNPB) exhibited that Lembata district has the second top-level refugee number (958 people) and fatalities (67 people) [6].…”

Section: Introductionmentioning

confidence: 99%

Integrating indigenous environmental and scientific knowledge for ecosystem-based adaptation of Muro Practices on Lembata Island

Ramadani,

Astari,

Digdo

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Previous studies argued that indigenous environmental knowledge was only part of local wisdom and tended to pay attention to the threat of its extinction. Indigenous environmental knowledge has not yet received recognition as an alternative perspective in dealing with the complexities of environmental management and climate change, along with the dominance of the western paradigm and current knowledge systems. This study aims to assemble the indigenous environmental knowledge systems of fisheries from communities along the coast of Lembata Island to assist in the conservation of marine ecosystems. Desk studies were used for information gathering, and the results were analyzed within the Ecosystem-based Adaptation (EbA) framework. Our results indicate that local communities in Lembata island have Muro as a temporary closure measure to manage coastal resources initiated by indigenous people that are valuable for the local people and simultaneously benefit the coastal ecosystem, including biodiversity. The results have implications for considering indigenous environmental knowledge to maintain the balance and continuity of coastal ecosystems and the main foundation in natural resource management.

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“…Several extreme weather events, such as intense rainfall, tropical cyclones, and tsunamis, have occurred in the coastal areas of the islands in recent decades, leading to natural disasters [7,8]. In April 2021, Tropical Cyclone Seroja caused intense rainfall (up to 100 mm/day over five days), strong winds, and wave setup which caused over 180 deaths in the East Nusa Tenggara province [9]. Despite this, the annual population continues to grow at a rate of ~1.1% [10], and towns and cities are widening along the coastal stretches.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Assessment of Climate Change and Coastal Inundation through Satellite-Derived Datasets: A Case Study of Sabang Island, Indonesia

et al. 2022

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Climate-change-induced hazards are negatively affecting the small islands across Indonesia. Sabang Island is one of the most vulnerable small islands due to the rising sea levels and increasing coastal inundation which threaten the low-lying coastal areas with and without coastal defences. However, there is still a lack of studies concerning the long-term trends in climatic variables and, consequently, sea level changes in the region. Accordingly, the current study attempts to comprehensively assess sea level changes and coastal inundation through satellite-derived datasets and model-based products around Sabang Island, Indonesia. The findings of the study show that the temperature (both minimum and maximum) and rainfall of the island are increasing by ~0.01 °C and ~11.5 mm per year, respectively. The trends of temperature and rainfall are closely associated with vegetative growth; an upward trend in the dense forest is noticed through the enhanced vegetation index (EVI). The trend analysis of satellite altimeter datasets shows that the sea level is increasing at a rate of 6.6 mm/year. The DEM-based modelling shows that sea level rise poses the greatest threat to coastal habitations and has significantly increased in recent years, accentuated by urbanisation. The GIS-based model results predict that about half of the coastal settlements (2.5 sq km) will be submerged completely within the next 30 years, provided the same sea level rise continues. The risk of coastal inundation is particularly severe in Sabang, the largest town on the island. The results allow regional, sub-regional, and local comparisons that can assess variations in climate change, sea level rise, coastal inundation, and associated vulnerabilities.

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The Impact of Tropical Cyclone Seroja to The Rainfall and Sea Wave Height in East Nusa Tenggara

Cited by 5 publications

References 11 publications

Changes in reef benthic communities in Sumba Timur, East Nusa Tenggara, Indonesia

Changes in reef benthic communities in Sumba Timur, East Nusa Tenggara, Indonesia

Integrating indigenous environmental and scientific knowledge for ecosystem-based adaptation of Muro Practices on Lembata Island

A Comprehensive Assessment of Climate Change and Coastal Inundation through Satellite-Derived Datasets: A Case Study of Sabang Island, Indonesia

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