scholarly journals Karakteristik Lahan terhadap Kerentanan Pesisir Pantai Kabupaten Rembang, Jawa Tengah

2019 ◽  
Vol 8 (3) ◽  
pp. 253-261
Author(s):  
Abiyani Choirul Huda ◽  
Ibnu Pratikto ◽  
Rudhi Pribadi

Kerentanan pantai adalah kondisi yang menggambarkan keadaan mudah terkena dari suatu sistem alami serta keadaan sosial pantai. Kerentanan pantai yang diakibatkan erosi merupakan ancaman yang dapat menimbulkan kerugian yang besar bila tidak ditangani dengan tepat. Perlu dilakukan sebuah upaya mitigasi bencana erosi pantai berupa tahap awal dengan penilaian indeks kerentanan pantai. Upaya mitigasi bencana dapat dimulai dengan membuat pemetaan indeks kerentanan pantai yang berdasarkan penilaian lima variabel, yaitu:  geomorfologi pantai, tipologi pantai, kemiringan pantai, vegetasi mangrove, dan penggunaan lahan pesisir. Metode yang digunakan dalam penelitian ini adalah metode spasial yang digunakan untuk menyusun peta tingkat kerentanan pantai yang diawali dengan input data ataupun peta berdasarkan pada variable yang ditentukan, dilanjutkan dengan metode kuantitatif yang digunakan untuk menganalisa data yang tersaji dalam bentuk angka dengan menggunakan sistem skoring, dilanjutkan dengan metode deskriptif yang digunakan dalam mendeskripsikan sejumlah variabel yang berkenaan dengan penelitian. Penelitian ini dilakukan pada bula Mei-Agustus 2017, lokasi penelitian berada di kawasan pesisir pantai Kabupaten Rembang pada 6 Kecamatan Pesisir dan 40 desa. Hasil dari penelitian ini berdasarkan penilaian Indeks Kerentanan Pantai di Kabupaten Rembang didapatkan tingkat kerentanan sangat tinggi (400-450) berada di Kecamatan Kaliori, kerentanan tinggi (360-400) berada di Kecamatan Sarang, Kragan, dan Lasem, kerentanan sedang (290-360) berada di Kecamatan Sluke, dan kerentanan rendah (240-290) berada di Kecamatan Rembang. Dari lima variabel, yang sangat berpengaruh terhadap kerentanan bencana erosi pantai adalah tipologi pantai. Coastal vulnerability is a condition which describes the State of a system of easily affected by natural and social circumstances of the beach.Coastal vulnerability arising from erosion is a threat that can cause great harm if not handled appropriately.Need a coastal erosion hazard mitigation efforts in the form of an early stage with an assessment of the vulnerability index beach.Disaster mitigation efforts can be initiated by creating a mapping coastal vulnerability index based on the assessment of the five variables, namely: coastal geomorphology, typology, the slope of the Beach Coast, mangrove vegetation, and land use. The methods used in this research are spatial methods used to draw up a map of the level of vulnerability of beach, begins with the input data or map based on variable is specified, followed by a quantitative method used to analyze the data that is presented in the form of numbers by using the scoring system, followed by a descriptive method used in describing a number of variables related to the research.This research was conducted in  May-August 2017, the location of the research lies in the coast of Rembang in 6 sub-districts and 40 villager. The results of this research are based on the assessment of the vulnerability index Beach in Rembang in the level of very high vulnerability (400-450) is located in district kaliori, high vulnerability (360-400) is located in the subdistrict of Sarang, Kragan and Lasem, medium vulnerability (290-360) is located in district of Sluke, and low vulnerability (240-290) located in the subdistrict of Rembang. From the fifth of these variables, a very influential towards the erosion of coastal disaster vulnerability is the beach typology.

2018 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
Baigo Hamuna ◽  
Annisa Novita Sari ◽  
Alianto Alianto

The coastal areas of both Jayapura Municipality and Regency which is directly opposite to the Pacific Ocean with the multifunctional use is a vulnerable area to disasters. The coastal vulnerability is determined by considering some influential factors, that is geomorphology and elevation to minimize the coastal damage impacts. The purpose of this study is to determine the coastal vulnerability index of Jayapura City and Regency focusing on the coastal geomorphology and elevation. The study area covers a coastal area of 241.86 km along the coastlines of Jayapura Municipality and Regency. The study method includes data collection on the coastal geomorphology and elevation characteristics. The value of coastal vulnerability index of each parameter is determined by dividing into five categories of coastal vulnerability. The result shows territorial division as follows: 145.88 km (61.18%) was not vulnerable, 33.14 km (13.90%) was less vulnerable, 29.03 km (12.17%) was a moderate vulnerability, 12.12 km (5.08%) was vulnerable, and the remaining 18.29 km (7.67%) was very vulnerable. The coastal vulnerability of Jayapura City coastal areas categorized into three classes, i.e. not vulnerable, moderate vulnerable and vulnerable, while the Jayapura Regency coastal areas felt into the following classes: not vulnerable and moderate vulnerable. The most vulnerable areas were of Abepura District, South Jayapura District and Muaratami District, all in the Jayapura Municipality administration. Those areas with high elevation level were not vulnerable at all.


2021 ◽  
Vol 9 (4) ◽  
pp. 423
Author(s):  
Vasileios Boumboulis ◽  
Dionysios Apostolopoulos ◽  
Nikolaos Depountis ◽  
Konstantinos Nikolakopoulos

The aim of this specific study is to present a new weighted Coastal Vulnerability Index (CVIWF), with an emphasis given to the geotechnical evaluation and shoreline evolution rate measured through high-resolution remote sensing, which seem to be the most interfering variables in CVI calculations. As a pilot area for the application of the new CVIWF, the Gulf of Patras in Western Greece was selected, which is suffering erosion problems due to climate change, the sea level rising and human intervention. The new CVIWF, which was applied in this research, includes the following innovations: (1) the use of geotechnical characterization instead of geological–geomorphological characterization, (2) the use of high-resolution remote sensing data for the detection of shoreline evolution rate and (3) the insertion of a specific weighted geotechnical factor in the CVIWF formula. The results from the application of the unweighted CVI show that percentages of 20.13%, 20.47%, 24.56%, 29.39% and 5.45% of the gulf’s shoreline are under the regime of very low, low, moderate, high and very high vulnerability, respectively. On the other hand, the corresponding results from the application of the weighted CVIWF show a percentage of 14.59%, 25.91%, 20.04, 36.48% and 2.98, respectively.


2019 ◽  
Vol 276 ◽  
pp. 02006 ◽  
Author(s):  
Ari Sandhyavitri ◽  
Ferry Fatnanta ◽  
Rizki Ramadhan Husaini ◽  
Imam Suprayogi

The length of Riau coastlines, Indonesia were approximately 900 km long. Hence, there has been difficulty in prioritizing managing various locations of the coastline damages based on a systematic approach. The objectives of this paper are to apply the state of art in the identification of 16 major coastlines vulnerability index in Riau, and to prioritizing which coastlines should be managed in terms of 4 main aspects such as; technical aspect, economic, environmental, and strategic one. The methodology applied in this paper utilized the combination of the Coastal Vulnerability Index (CVI) and social economic approaches using a Likert’s scale of 1 (low) to 5 (very high). This study has recommended a priority in managing the coastlines in Riau was as follow; Pambang Pesisir, Bengkalis and Tanah Merah, Meranti Islands. These coastlines were calculated as the very high level of vulnerability indexes of 75.3 and 74.9 respectively. This study also simulated the use of shoreline protection structure by Genesis software utilizing a revetment construction. The results showed that the construction of revetment structure in Pambang pesisir beach may reduce the shore erosion rate from 10 m/14 year to 0 m /14 year.


Jurnal Segara ◽  
2019 ◽  
Vol 15 (2) ◽  
Author(s):  
Ruzana Dhiauddin ◽  
Wisnu Arya Gemilang ◽  
Koko Ondara ◽  
Uung Jantama Wisha ◽  
Guntur Adhi Rahmawan ◽  
...  

Pangandaran West Coast is the famous tourism site besides many tourisms offer in Pangandaran Regency. These white sand beaches provide beautiful sightseeing, water sports, tourism facilities, culinary and many other interesting things. In contrary, there were many erosion evidences found and building damage during the field research, in this area that may harm the nature its self and the population as well. The aim of this research is to map the coastal vulnerability in Pangandaran West Coast by integrating Smartline Mapping approach and CVI (Coastal Vulnerability Index). Thus, we map vulnerability parameters in two directions, along and cross the coastline, that consist of 10 parameters such as beach material, wave exposure, hinterland relief, berm feature, grain size, berm height, beach face feature, significant wave height, coastline changes, and residential area density. Finally, after the mapped parameters were scored and calculated using CVI formula, the result showed that vulnerability index in Pangandaran West Cost ranged from 16.43 to 129.9 which divided into 5 vulnerability classes; 1) Very low, 2) Low, 3) Moderate, 4) High, and 5) Very High.


2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Akshaya Beluru Jana ◽  
Arkal Vittal Hegde

The coastal zones are highly resourceful and dynamic. In recent times, increased events of tropical cyclones and the devastating impact of the December 2004 tsunami have brought forth the importance of assessing the vulnerability of the coast to hazard-induced flooding and inundation in coastal areas. This study intends to develop coastal vulnerability index (CVI) for the administrative units, known astalukasof the Karnataka state. Seven physical and geologic risk variables characterizing the vulnerability of the coast, including rate of relative sea level change, historical shoreline change, coastal slope, coastal regional elevation, mean tidal range, and significant wave height derived using conventional and remotely sensed data, along with one socioeconomic parameter “population,” were used in the study. A total of 298 km of shoreline are ranked in the study. It was observed that about 68.65 km of the shoreline is under very high vulnerable category and 79.26 km of shoreline is under high vulnerable category. Of the remaining shoreline, 59.14 km and 91.04 km are of moderate and low vulnerable categories, respectively.


2017 ◽  
Vol 50 (3) ◽  
pp. 1721
Author(s):  
A. Mavromatidi ◽  
E. Karymbalis

Tourism development in Greece has led to increasing pressure on coastal areas, which makes the study of sensitive coastal areas essential, in order to find appropriate solutions for their shielding. The aim of this study is an estimation of the effects of an anticipated sea level rise for the touristically developed part of Pieria Prefecture, which includes the settlements Paralia, Skala of Katerini, Olympic Beach, Korinos Beach and extends north to the area of the Kitrous saltworks and south to the mouth of Mavroneri river. Therefore the Coastal Vulnerability Index (CVI) is applied, in an attempt to determine the susceptible parts to the potential sea level rise. CVI depends on the following parameters: (a) coastal geomorphology, (b) coastal slope, (c) shoreline erosion/accretion rate, (d) relative sea-level rise fluctuations, (e) mean tidal range and (f) mean significant wave height. The classification of the coast, which is of particular socio-economic significance since it hosts urbanized areas, into five CVI classes (from very low vulnerability to very high vulnerability), showed that 43.6% of the entire coastline is of very high vulnerability. 


2021 ◽  
Vol 214 ◽  
pp. 105916
Author(s):  
A.I.A. Hamid ◽  
A.H.M. Din ◽  
N.M. Abdullah ◽  
N. Yusof ◽  
M.R.A. Hamid ◽  
...  

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