scholarly journals ANALYSIS OF SHORELINE CHANGE IN COASTAL AREA OF SUBANG WEST JAVA INDONESIA FROM 2010 TO 2019 THROUGH SATELLITE IMAGERY

2020 ◽  
Vol 8 (9) ◽  
pp. 1166-1172
Author(s):  
O. Pattipawaej ◽  
◽  
G. Hardiyan ◽  
Keyword(s):  
Negative Impact ◽  
Shoreline Change ◽  
Google Earth ◽  
Coastal Communities ◽  
Coastal Protection ◽  
Damage Analysis ◽  
West Java ◽  
Shoreline Changes ◽  
Coastal Damage ◽  
Satellite Mapping

The condition of beaches in Indonesia is currently quite concerning. Indonesia's mangroves and coastal sand are in danger of being damaged. Commitment from all parties is needed to overcome coastal damage. If not, the negative impact will be dangerous for the existence of coastal communities. Damage to coastal is a serious threat to the surrounding ecosystem, even tends to harm humans. Not only waste carried by the flow into the sea, but also garbage disposed of around the coastal areas of the sea and poor land management are clearly some actions that can reduce the carrying capacity of the environment. This carriage a serious threat to the environment. The beach in Subang district, West Java has quite severe coastal damage. Analysis of shoreline changes is needed to overcome the damage to the coast. The method used to analyze shoreline changes is through satellite mapping using Google Earth. The results obtained from 10 years of coastline satellite mapping in Subang Regency are changes in coastline and area that occur due to erosion and/or accretion. These results will help to challenge erosion and/or accretion. The next step can be made a coastal protection in the form of mangrove plants or coastal protection structures.

scholarly journals Shoreline Change with Groin Coastal Protection Structure at North Java Beach

2020 ◽  
Vol 11 (1) ◽  
pp. 19-28
Author(s):  
Oki Setyandito ◽  
Aldo Christanto Purnama ◽  
Nur Yuwono ◽  
Juliastuti Juliastuti ◽  
Yureana Wijayanti
Keyword(s):  
Significant Wave Height ◽  
Surf Zone ◽  
Shoreline Change ◽  
Research Area ◽  
Coastal Protection ◽  
Wave Direction ◽  
West Java ◽  
Significant Wave ◽  
North Beach ◽  
Topography Data

The research aimed to study the effect of groin application to erosion at the shoreline. The method utilized the bathymetry and topography data of north beach of Balongan, West Java. Modeling of the shoreline change due to groin installment used software called GENESIS. Based on analysis result, it is found that the significant wave direction comes from the southeast with significant wave height of 1,18 meters and surf zone width of 140 meters. It is concluded that at research area of north beach of west Java, I-groin with length of 70 meters and T head groin of 60 meters in long T-groin effectively overcome erosion and advance the coastline by 10786,62 m2 or in average 6,3 meters.

scholarly journals ANALISIS PERUBAHAN GARIS PANTAI DAN STRATEGI PENGELOLAANNYA DI PANTAI BARAT SULAWESI SELATAN

2018 ◽  
Vol 1 (1) ◽  
pp. 89-99
Author(s):  
Agustina Goni ◽  
Abdul Rauf ◽  
Muhammad Asbar
Keyword(s):  
Coastal Management ◽  
Swot Analysis ◽  
Management Strategies ◽  
Image Interpretation ◽  
Shoreline Change ◽  
Coastal Protection ◽  
Strategy Analysis ◽  
Shoreline Changes ◽  
Coastal Conservation ◽  
Research Areas

This study aims to: (1) analyze changes in coastlines that experience accretion and coastal abrasion; (2) analyze oceanographic factors that influence changes in coastline; (3) formulate direction of management strategies in the research areas that experience accretion and abrasion. In addition, it is expected to be able to provide information to stakeholders as a material consideration in taking the policy of managing the coastal areas of Pangkep and Pinrang Regencies. The method used in this study is analysis of shoreline changes based on survey and mapping methods, interpretation of SPOT 6 images for shoreline changes and SWOT analysis for strategy direction determination. The results of image interpretation show that the extent of shoreline changes that occurred in Pangkep Regency amounted to 38.74 Ha in the form of accretion and 13.99 Ha in the form of abrasion, whereas for Pinrang Regency the extent of shoreline change was 158.15 Ha which experienced accretion and 41.88 Ha in the form of abrasion. The results of the Coastal Coastal Management Strategy analysis based on the results of the analysis carried out there are 4 things that become tactical decisions for recommendations in coastal management efforts, namely; make special areas for coastal security and coastal conservation naturally; law enforcement and institutional strengthening; provide special allocation of space for safeguards and coastal protection; improving the quality of human resources around the coast.

scholarly journals Shoreline Changes due to Abrasion in Pekalongan Utara Sub District Year 2003-2018

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Ndaru Diatama ◽  
Chatarina Muryani ◽  
Rahning Utomowati
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Use Changes ◽  
Shoreline Change ◽  
Coastal Areas ◽  
Google Earth ◽  
Shoreline Changes ◽  
Spatial Approach ◽  
Qualitative Descriptive ◽  
Land Use Maps

<em>The purpose of this research are:  1) analyze the shoreline change in the coastal areas of North Pekalongan Sub-district from 2003 to 2018; 2) Analyze the  land use change in the coastal areas of North Pekalongan from 2003 to 2018; This type of research is a qualitative descriptive with a spatial  approach. Data   obtained from interpretation of  IKONOS image from Google Earth in 2003, year 2013, and year 2018. The research steps were: (1) interpretation  of Google Earth IKONOS image year 2003-2018, (2) Overlay of  shoreline map of year 2003 and year 2018, (3) overlay of land use maps of year 2003- year 2018. The results of the study were: (1) The shoreline of North Pekalongan Sub-district was retreat 7.261 meters up to 94.383 meters. (2) The largest land use changes in North Pekalongan sub district was  the change of land to a flooded land of 624.379 ha or 52.556% of land in the area.</em>

scholarly journals Exploring the Ever-Changing Seashore Using Geoinformatics Technology

Earth ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 544-555
Author(s):  
Ibra Lebbe Mohamed Zahir ◽  
Buddhika Madurapperuma ◽  
Atham Lebbe Iyoob ◽  
Kafoor Nijamir
Keyword(s):  
Coastal Zone ◽  
Satellite Images ◽  
Coastal Zone Management ◽  
Ground Truth ◽  
Shoreline Change ◽  
Modern Technology ◽  
Google Earth ◽  
Coastal Protection ◽  
Threshold Method ◽  
Zone Management

Detecting coastal morphodynamics is a crucial task for monitoring shoreline changes and coastal zone management. However, modern technology viz., Geoinformatics paves the way for long-term monitoring and observation with precise output. Therefore, this study aimed to produce explicit shoreline change maps and analyze the historical changes of the coastline at the east coast of the Ampara District in Sri Lanka. The histogram threshold method is used to extract data from satellite images. The time-series satellite images, acquired from 1987 to 2017, toposheet, and Google Earth historical images were compared having adjusted with the ground-truth to find the seashore changes in the study area. The histogram threshold method is used on band 5 (mid-infrared) for separating land from water pixels which means that the water pixel values were classified to one (1) and land pixel values to zero (0). The extracted shoreline vectors were associated with each other to determine the dynamics of changing shoreline of the study area. The Digital Shoreline Analysis System (DSAS) was used to find shoreline movements for each period of time. As a result, it was observed by the cross-section analysis within 100 m shoreline—seaward range along the study area—in which severe erosion has occurred northward of the Oluvil Harbor and anomalous accretion southward of the harbor because of the breakwaters constructed in the port entrance which hinder the long shore sediment transport along the study area. This situation has resulted in many ramifications to the coastal zone of the study area in socio-economic and environmental aspects in which the coastal protection mechanisms have not been well implemented to curb such issues.

scholarly journals Shoreline Change Dynamics using Digital Shoreline Analysis in Cemara Besar Island

Jurnal Segara ◽  
2020 ◽  
Vol 16 (2) ◽  
Author(s):  
Muhammad Ramdhan ◽  
Yulius Yulius ◽  
Nur Kholik
Keyword(s):  
Shoreline Change ◽  
Google Earth ◽  
Wind Data ◽  
Shoreline Changes ◽  
Change Dynamics ◽  
Land Mass ◽  
Wave Forecasting ◽  
Geometry Correction ◽  
Very High ◽  
Dominant Direction

This paper will describe a study to find out the shoreline changes that occurred on Cemara Besar Island along with the accretion and abrasion. Data taken from the images was obtained through google earth as a result of radiometry and geometry correction from Landsat satellites in the last 5 years. Wind data is obtained from ecmwf interm every season for 5 years. Analysis of shoreline changes was carried out using the DSAS (Digital Shoreline Analysis) method and analyzed by wind and sea wave factors in each season. The results of the analysis obtained LRR and EPR values for 5 years, the extent of changes in island land mass, the value of Hs and Ts from the results of wave forecasting using wind data. To simplify the analysis, Cemara Besar Island is divided into 9 segments based on variations in LRR values. The results show that in general Cemara Besar Island have very high accretion in segments A, B and E with an average of 3.61 m and very high abrasion occurred in segment F with an average of -1.01 m. Abrasion occurs with the greatest speed of change in segment A with an average of 4.64 m/year and the largest accretion rate in segment F with an average of -1.21791 m/year. Analysis of oceanographic factors through wave forecasting shows that in the west and transition I season, waves occur with Hs 1.21 m, greater than the eastern season and transition II season with Hs 0.91 m. wind direction from north dominant direction 377.50 in west season and transition I, and from east direction 67,25 in east season and transition I season. Direction of wind blowing influences wave propagation and direction of wave coming towards shore which affects sediment transport which produces accretion and abrasion on the Cemara Besar Island.

scholarly journals Coastal Typology: An Analysis of the Spatiotemporal Relationship between Socioeconomic Development and Shoreline Change

Land ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 218
Author(s):  
Elizabeth A. Mack ◽  
Ethan Theuerkauf ◽  
Erin Bunting
Keyword(s):  
Great Lakes ◽  
Coastal Erosion ◽  
Shoreline Change ◽  
Water Levels ◽  
Coastal Communities ◽  
Coastal Hazards ◽  
Coastal Protection ◽  
Storm Events ◽  
Economic Vulnerability ◽  
Over Time

Globally, coastal communities are impacted by hazards including storm events, rising water levels, and associated coastal erosion. These hazards destroy homes and infrastructure causing human and financial risks for communities. At the same time, the economic and governance capacity of these communities varies widely, impacting their ability to plan and adapt to hazards. In order to identify locations vulnerable to coastal hazards, knowledge of the physical coastal changes must be integrated with the socio-economic profiles of communities. To do this, we couple information about coastal erosion rates and economic data in communities along the Great Lakes to develop a typology that summarizes physical and economic vulnerability to coastal erosion. This typology classifies communities into one of four categories: (1) High physical and economic vulnerability to coastal erosion, (2) High physical but low economic vulnerability to coastal erosion, (3) Low physical and low economic vulnerability to coastal erosion, and (4) High economic but low physical vulnerability to coastal erosion. An analysis of this typology over three time periods (2005–2010), (2010–2014), and (2014–2018) reveals the dynamic nature of vulnerability over this fourteen year time span. Given this complexity, it can be difficult for managers and decision-makers to decide where to direct limited resources for coastal protection. Our typology provides an analytical tool to proactively address this challenge. Further, it advances existing work on coastal change and associated vulnerability in three ways. One, it implements a regional, analytical approach that moves beyond case study-oriented work and facilitates community analyses in a comparative context. Two, the typology provides an integrated assessment of vulnerability that considers economic vulnerability to coastal erosion, which is a contextual variable that compounds or helps mitigate vulnerability. Three, the typology facilitates community comparisons over time, which is important to identifying drivers of change in Great Lakes coastal communities over time and community efforts to mitigate and adapt to these hazards.

scholarly journals Resilience from coastal protection

2015 ◽  
Vol 373 (2053) ◽  
pp. 20140383 ◽  
Author(s):  
Lesley C. Ewing
Keyword(s):  
Cultural Values ◽  
San Francisco ◽  
Coastal Communities ◽  
Coastal Hazards ◽  
Community Safety ◽  
Coastal Protection ◽  
Shore Protection ◽  
Coastal Community ◽  
Effective Community ◽  
Key Aspects

Coastal areas are important residential, commercial and industrial areas; but coastal hazards can pose significant threats to these areas. Shoreline/coastal protection elements, both built structures such as breakwaters, seawalls and revetments, as well as natural features such as beaches, reefs and wetlands, are regular features of a coastal community and are important for community safety and development. These protection structures provide a range of resilience to coastal communities. During and after disasters, they help to minimize damages and support recovery; during non-disaster times, the values from shoreline elements shift from the narrow focus on protection. Most coastal communities have limited land and resources and few can dedicate scarce resources solely for protection. Values from shore protection can and should expand to include environmental, economic and social/cultural values. This paper discusses the key aspects of shoreline protection that influence effective community resilience and protection from disasters. This paper also presents ways that the economic, environmental and social/cultural values of shore protection can be evaluated and quantified. It presents the Coastal Community Hazard Protection Resilience (CCHPR) Index for evaluating the resilience capacity to coastal communities from various protection schemes and demonstrates the use of this Index for an urban beach in San Francisco, CA, USA.

Rapid detection of changes in the riverbanks of Laigiang river of the South Central Coast Vietnam: A methodology based on Digital Shoreline Analysis System and Sentinel-2

2021 ◽  
Vol 14 (11) ◽  
pp. 13-24
Author(s):  
Anh Tu Ngo ◽  
Stéphane Grivel ◽  
Thai Le Phan ◽  
Huu Xuan Nguyen ◽  
Trong Doi Nguyen
Keyword(s):  
Linear Regression ◽  
Shoreline Change ◽  
The South ◽  
Central Coast ◽  
Shoreline Changes ◽  
South Central ◽  
Digital Shoreline Analysis System ◽  
Analysis System ◽  
End Point Rate ◽  
Sentinel 2

The research focuses on using Sentinel-2 that can be integrated with the Digital Shoreline Analysis System (DSAS) as an effective tool for the determination of changes in the riverbanks and using linear regression to predict shoreline changes. The research applied the assessment of shoreline changes in the period of 2015- 2020 and forecast to 2025 in Laigiang river of the South Central Coast region of Vietnam. Based on the DSAS tool, parameters such as Shoreline Change Envelope (SCE), Net Shoreline Movement (NSM), End Point Rate (EPR) and Linear Regression Rate (LRR) were determined. The analysis results show that the accretion process in the Laigiang river in the period of 2015-2020 with the accretion area ranges from 81.47 ha. Meanwhile, the area of shoreline erosion only fluctuates around 54.42 ha. The rhythm of evolution is a determinant element for this transitional system.

Shoreline Change Analysis along the Udupi-Dakshina Kannada Coastal Stretch in Karnataka, West Coast of India using DSAS

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
N.A. Anjita ◽  
G.S. Dwarakish
Keyword(s):  
Remote Sensing ◽  
West Coast ◽  
Shoreline Change ◽  
Sediment Supply ◽  
Shoreline Changes ◽  
West Coast Of India ◽  
Erosion Rates ◽  
Wide Range ◽  
Cyclic Changes ◽  
Accretion And Erosion

Study of morphological variations and the effects of oceanographic processes such as erosion and accretion at different temporal scales are important to understand the nature of the coast and the cyclic changes occurring during different seasons. The Udupi-Dakshina Kannada coast along the west coast of India exhibits a wide range of changes depending on the interactions of tide and wave energy, sediment supply and more importantly human intervention. In view of this, the present work has been carried out to study the changes in shoreline changes along the Udupi-Dakshina Kannada coast over a period of 29 years from 1990 to 2019. Remote Sensing and GIS techniques have been used to demarcate shorelines and calculate the shoreline change rates. Overall accretion and erosion rates were found to be 1.28 m/year and 0.91 m/year respectively along the coast. Highest accretion and erosion rates of 12.57 m/year and 5.34 m/year was noticed along the Dakshina Kannada coast. The study also suggests that multi-dated satellite data along with statistical techniques can be effectively used for prediction of shoreline changes. Keywords: remote sensing, GIS, Dakshina Kannada coast, oceanography, shoreline.

Google Earth: A New Resource for Shoreline Change Estimation—Case Study from Jaffna Peninsula, Sri Lanka

2018 ◽  
Vol 41 (6) ◽  
pp. 546-580 ◽  
Author(s):  
T. W. S. Warnasuriya ◽  
Kuddithamby Gunaalan ◽  
S. S. Gunasekara
Keyword(s):  
Sri Lanka ◽  
Shoreline Change ◽  
Google Earth
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