Pengamatan mengenai perubahan garis pantai di pesisir Kabupaten Subang, Jawa Barat telah dilakukan dengan menggunakan program Digital Shoreline Analysis System berdasarkan citra satelit Landsat TM dari tahun 1996–2010. Tujuan dari penelitian ini adalah untuk mengetahui besar perubahan garis pantai di Kabupaten Subang serta zonasi kawasan yang mengalami perubahan garis pantai tersebut. Metode yang digunakan adalah pemprosesan citra dan survey lapangan. Hasil dari penelitian ini menunjukkan bahwa dari tahun 1996–2010 perairan pesisir Kabupaten Subang mengalami perubahan garis pantai oleh adanya akresi dan abrasi yang maksimalnya sejauh lebih dari 1 km. Hasil analisis regresi antara perubahan waktu dengan akresi serta abrasi memberikan nilai positif. Secara keseluruhan, lebih dari 50% panjang pesisir Kabupaten Subang dikategorikan dalam kerusakan yang parah. Perubahan garis pantai di Pesisir Kabupaten Subang terjadi terutama karena kegiatan pembangunan di sekitar pesisir seperti pembukaan lahan mangrove menjadi tambak dan sawah, pembangunan pemukiman, serta transpor sedimen dari sungai-sungai di kawasan pesisir Kabupaten Subang. Kata kunci: perubahan garis pantai, Kabupaten Subang, citra satelit, akresi, abrasi. Observation of coastal shoreline changes in the Subang District was conducted using Digital Shoreline Analysis System Program based on the satellite images of Landsat TM from 1996 to 2010. The purpose of this study was to determine the distance of shoreline change and the zoning area in the Coastal of Subang District. Methods used in this study were images processing and field survey. The results of the study indicated the presence of shoreline changes which experienced maximum accretion and abrasion of more than 1 km between 1996 to 2010. The results of regression analysis between time and accretion as well as time and abrasion showed positive correlation. More than 50% the coastal area of Kabupaten Subang was in severely damaged condition. Coastal shoreline change in Kabupaten Subang occurred mainly due to the developmental activities such as residential construction, coastal mangrove conversion to ponds and rice paddies and sediment transport from the river around Kabupaten Subang. Keywords: shoreline change, Subang District, satellite images, accretion, abrasion.
Parigi Beach is one of the beach tourism destinations in West Java. Parigi Beach is in Kabupaten Pangandaran where is facing directly to the Indian Ocean; hence the beach wave is high and risks for beach tourism activity. Beach hazard in Parigi Beach is frequent on long holiday seasons. The research aim is to assess beach tourism safety based on wave parameters and find out the cause of danger. The result shows that Parigi Beach is an intermediate rhythmic bar and beach, which average of the breaking wave height reaches to 1,87 meter and occur beach cusps formation. The beach safety levels exhibit that low safety condition exists from March to November, while from December to February, the beach condition was categorized as moderate safety for coastal tourism activity. Rip current and shore break as the main factor of hazard beach tourism from January to February, whereas from Maret to December, hazard factors in Parigi Beach was rip current and plunging high wave. Pantai parigi merupakan salah satu tujuan wisata pantai di Jawa Barat. Pantai Parigi berada di Kabupaten Pangandaran yang letaknya berhadapan langsung dengan Samudera Hindia, sehingga gelombang di Pantai Parigi relatif tinggi dan berisiko untuk kegiatan wisata pantai. Kecelakaan wisata pantai di Pantai Parigi sering terjadi saat musim libur panjang. Penelitian ini bertujuan untuk menilai tingkat keselamatan wisata pantai tiap bulan berdasarkan parameter gelombang dan mengetahui faktor penyebab bahaya yang terjadi. Hasil penelitian menunjukan bahwa Pantai Parigi termasuk ke dalam tipe pantai intermediate rhythmic bar and beach dengan tinggi gelombang pecah rata-rata mencapai 1,87 meter serta terdapat jejak gelombang berbentuk busur di pantainya. Untuk tingkat keselamatan wisata pantai, keadaan kurang aman di Pantai Parigi terjadi dari mulai Maret hingga November, sedangkan dari Desember hingga Februari dikategorikan pada situasi cukup aman. Faktor penyebab bahaya wisata pantai adalah Rip current dan shorebreak yang muncul pada bulan Januari dan Februari, sementara pada bulan Maret hingga Desember faktor penyebab bahaya adalah rip current dan gelombang tinggi dengan tipe plunging.
Kepulauan Seribu merupakan gugusan pulau di perairan utara Jakarta yang memiliki daya tarik wisata terutama untuk snorkeling dan diving dengan adanya terumbu karang, salah satunya adalah Pulau Sepa. Ekosistem terumbu karang merupakan ekosistem yang rentan mengalami degradasi oleh berbagai faktor. Kegiatan snorkeling menjadi salah satu ancaman yang terjadi pada terumbu karang, oleh karena itu diperlukan pengukuran mengenai kondisi kesehatan ekosistem terumbu karang, khususnya Pulau Sepa kepulauan Seribu, sebagai bentuk integrasi konservasi ekosistem dan pengelolaan wisata. Riset ini dilakukan di Pulau Sepa, Taman Nasional Kepulauan Seribu pada Bulan Maret-Agustus 2020. Wilayah yang diamati merupakan spot snorkeling pada kedalaman 1-5 m pada 10 stasiun penelitian , dengan mengklasifikasikan warna kesehatan dan juga tipe karang menggunakan klasifikasi dari Coral Watch. Skor warna kesehatan terumbu karang pada zona snorkeling Pulau Sepa, didominasi dengan kondisi kurang sehat pada skor warna 4, dengan dominasi tipe karang branching dan boulder dan sedikit tipe pertumbuhan plate dan soft. Kriteria kesehatan terumbu karang mayoritas berada pada kurang sehat, sedikit sehat dan tidak ditemukan yang tidak sehat. Rincian kriteria kesehatan terumbu karang kurang sehat di temui pada stasiun 1-10 dengan masing masing persentase 92%, 72%, 100%, 94%, 78%, 94%, 100%, 100%, 67%, dan 89%, untuk rincian kriteria kesehatan terumbu karang sehat pada stasiun 1-10 dengan masing-masing persentase 8%, 28%, 0%, 6%, 22%, 6%, 0%, 0%, 33%, 11%. Faktor lingkungan seperti kecerahan yang dipengaruhi oleh sedimentasi serta tekanan antropogenik dari aktivitas manusia mempengaruhi kondisi tutupan karang di pulau ini. The Thousand Islands are a group of islands in the northern waters of Jakarta which have tourist attractions, especially for snorkeling and diving with the presence of coral reefs, one of which is Sepa Island. Coral reef ecosystem is an ecosystem that is prone to degradation by various factors. Snorkeling activities are one of the threats that occur on coral reefs, therefore it is necessary to measure the health condition of coral reef ecosystems, especially Sepa Island, the Thousand Islands, as a form of integration of ecosystem conservation and tourism management. This research was conducted on Sepa Island, Thousand Islands National Park on March - August 2020. The area observed is a snorkeling spot at a depth of 1-5 m at 10 research stations, by classifying the color of health and also the type of coral using the classification from Coral Watch. The coral reef health color score in the Sepa Island snorkeling zone, was dominated by unhealthy conditions at a color score of 4, with a dominance of branching and boulder coral types and few plate and soft growth types. The majority of coral reef health criteria are unhealthy, slightly healthy and not found unhealthy. Details of the health criteria for unhealthy coral reefs were found at stations 1-10 with each percentage of 92%, 72%, 100%, 94%, 78%, 94%, 100%, 100%, 67%, and 89%, respectively. details of health criteria for healthy coral reefs at stations 1-10 with each percentage of 8%, 28%, 0%, 6%, 22%, 6%, 0%, 0%, 33%, 11%. Environmental factors such as clarity which influenced by sedimentation and anthropogenic factors from human activities affect the condition of coral cover on this island.
Eddies are omnipresent in the eastern boundary current regions of the world)s oceans (Bire & Wolfe, 2018;Chelton et al., 2011;Faghmous et al., 2015). They are the main source of kinetic energy in the oceans (Chelton et al., 2011), trap the eastern boundary currents near the coast (Bire & Wolfe, 2018), and contribute to mixing and transporting ocean properties over long distances (Azis Ismail & Ribbe, 2019;Faghmous et al., 2015;Henson & Thomas, 2008). The Indo-Australian Basin (IAB) located between 105°E-125°E and 6°S-20°S is the largest marginal sea along the southeastern tropical boundary of the Indian Ocean (Figure 1a). It encompasses a total area of about 2.5 million km 2 , has an average depth of about 2,500 m, and is bounded in the north by the Java and Lesser Sunda Islands and in the south by the northwest Australian shelf. The IAB comprises the sole major route for the low-latitude interbasin transport from the Pacific into the Indian Ocean which is referred to as the Indonesian Throughflow (ITF). The warm and low-salinity water transferred by the ITF into the IAB plays a key role in the Indian and Pacific Oceans) heat budget (Sprintall et al., 2014).The ITF enters the eastern edge of the IAB through an array of gaps within the Lesser Sunda Islands, namely the Lombok Strait, Ombai Strait, Sawu Sea, and Timor Passage. The outflow of the ITF along these straits induces large meanders (Feng & Wijffels, 2002) and high amplitude anticyclonic eddies (AEs) referred to as "teddies." These are eddies carrying ITF waters (Nof et al., 2002). The teddies can move westward and carry chlorophyll-rich water into the tuna-spawning zone of the IAB (Yu et al., 2015). Along the western boundary of the IAB, the mass and property exchange with the Indian Ocean takes place by means of several
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.