Identification and analysis of shoreline changes over fishermen settlement along the coast of sungaibuntu and cemarajaya village, Karawang Regency, West Java

Shoreline changes, that occur along the coast, gives negative effects to the environment and also social-economic activities on the fishermen’s livelihood. Study about shoreline changes, its trends, and its causes are important for the development of economic and sanitation vulnerability assessment on fishermen community caused by shoreline changes. Thus, environmental sustainability criteria within the local scale and specific to fishermen community takes into account and the implementation of the instrument become more appropriate to reduce the undesirable effects. This research aims to identifying and analysing shoreline changes trend and its factors over the fishermen settlement area along the coast of Sungaibuntu and Cemarajaya village, Karawang Regency, West Java. Data used in this study are Landsat-7 1999, 2002, 2007, and 2012 as well as Landsat-8 2017. To enhance Landsat-7 images, band 2-4-5 are used, meanwhile Landsat-8 employs band 3-5-6. Later, the shoreline was extracted by applying band rationing techniques, Band2/Band5 for Landsat-7 and Band3/Band6 for Landsat-8. The rate of shoreline changes along the coast of Sungaibuntu is -0.15 m/yr and -2.89 m/yr along Cemarajaya. The periodic phenomena that affect shoreline changes consist of tidal range with a mean value of 0.796 m, significant wave height (Hs) of 0 - 2.9 m with the dominant direction heading to the southeast, and also sea level rise (SLR). Besides, there is an anthropogenic factor of land use and land cover changes as the significant feature shown by the managed system of ponds, cropland, farmland, paddy field, along with the settlement. As for the instrument development of economic and sanitation vulnerability on fishermen community, it is important to take shoreline changes rate and its causes into account and consider it as vulnerability criteria.

Download Full-text

Spatial Analysis of Coastline Change by Remote Sensing in the North Coast of Karawang Regency

Jurnal Geografi Lingkungan Tropik ◽

10.7454/jglitrop.v3i2.71 ◽

2020 ◽

Vol 3 (2) ◽

Author(s):

Roberto Pasaribu ◽

Firman Agus H. ◽

Liliek Soeprijadi

Keyword(s):

Shoreline Change ◽

Rate Of Change ◽

North Coast ◽

Landsat 8 ◽

Northern Coast ◽

Shoreline Changes ◽

The Road ◽

Coastline Change ◽

The North ◽

Landsat 7

The existence of the coast in the northern part of Karawang Regency is very worrying. Seawater that was far up to tens of meters from the side of the road, is now on the lip of the road, even some parts of the road are cut off due to abrasion of seawater. Some villages were affected by abrasion erosion. One of the effects of damage due to abrasion and sedimentation is the occurrence of shoreline changes. This change in coastline will affect people's lives and spatial planning for the development of the area. For this reason, this study aims to determine the extent and rate of shoreline changes that occurred on the coast of Karawang Regency in the periods of 1989, 1995, 2001, 2005, 2009, 2016, and 2018. The shoreline data was obtained from the extraction of Landsat 3 MSS, Landsat 5 TM, Landsat 7 ETM +, and Landsat 8 OLI-TIRS after the NDWI process was previously carried out. While the rate of change is calculated at 6 sample point locations scattered along the northern coast of Karawang Regency. The results showed that the largest area damaged by abrasion occurred in Sedari Village covering an area of 166.802 hectares, and the area formed by the largest sedimentation occurred in Muara Cilamaya Village at 276,318 hectares. Meanwhile, the fastest rate of shoreline change due to abrasion occurred in Sukajaya Village at 10 meters /year, while the slowest in Sedari Village at 3.77 meters / year. The fastest sedimentation process in Muara Cimalaya Village is 4.5 meters / year, while the late one in Tanjung Pakis Village is 3.09 meters / year.Keywords: Abrasion, Accretion, Coastline Changes, Karawang

Download Full-text

Radiometric Cross Calibration of Landsat 8 Operational Land Imager (OLI) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+)

Remote Sensing ◽

10.3390/rs61212619 ◽

2014 ◽

Vol 6 (12) ◽

pp. 12619-12638 ◽

Cited By ~ 92

Author(s):

Nischal Mishra ◽

Md Haque ◽

Larry Leigh ◽

David Aaron ◽

Dennis Helder ◽

...

Keyword(s):

Thematic Mapper ◽

Landsat 8 ◽

Landsat 7 ◽

Cross Calibration

Download Full-text

The health effects of quarantine during the COVID-19 pandemic

Work ◽

10.3233/wor-203306 ◽

2020 ◽

Vol 67 (3) ◽

pp. 523-527

Author(s):

Maryam Feiz Arefi ◽

Amin Babaei-Pouya ◽

Mohsen Poursadeqiyan

Keyword(s):

Health Effects ◽

World Health ◽

Economic Activities ◽

Negative Effects ◽

Social Hygiene ◽

Social Communications ◽

Study Results ◽

Control And Prevention ◽

Health Organization ◽

Made In

BACKGROUND: Quarantine is considered as an effective solution in the early stages of an epidemic. In the case of the coronavirus epidemic, quarantine was also recommended and implemented as a significant guideline to prevent the disease. However, despite the benefits of quarantine, there are also complications and problems. OBJECTIVE: The present study aimed to investigate the health effects of quarantine during the COVID-19 pandemic. METHODS: This study was conducted as a literature review through searching the databases Google Scholar, PubMed, and Science Direct for papers published before July 2020. The research was conducted based on the keywords “Coronavirus,” “COVID-19,” and “quarantine.” The references of the papers were also reviewed to find the ones not found in the databases. The guidelines published by reputable organizations such as the World Health Organization (WHO) and Centers for Disease Control and Prevention (CDC) were used in this study. RESULTS: Although quarantine is applied as an important and primary solution in the outbreak of epidemics, in cases of pandemics, it may not be free of negative effects on individuals and public health. However, because of the need to reopen and restart social and economic activities, some changes should be made in lifestyles and work activities. Using cyberspace and telework can be helpful. As the findings showed, COVID-19 bubbles can be used to restore social communications. CONCLUSION: Using masks, avoiding unnecessary gatherings, complying with personal and social hygiene, and respecting social distancing can be valuable solutions that, if implemented properly, can decrease the rate of the disease significantly. It is also emphasized that quarantine is still necessary and important as the best solution for sick people and individuals who are suspected carriers of the disease.

Download Full-text

Earth observation for monitoring and mapping of cyanobacteria blooms. Case studies on five Italian lakes

Journal of Limnology ◽

10.4081/jlimnol.2016.1565 ◽

2016 ◽

Vol 76 (s1) ◽

Cited By ~ 13

Author(s):

Mariano Bresciani ◽

Claudia Giardino ◽

Rosaria Lauceri ◽

Erica Matta ◽

Ilaria Cazzaniga ◽

...

Keyword(s):

Remote Sensing ◽

Algal Blooms ◽

Remote Sensing Data ◽

Late Summer ◽

Eutrophic Lake ◽

Cyanobacterial Blooms ◽

Landsat 8 ◽

Negative Effects ◽

Eutrophic Lakes ◽

Chl A

Cyanobacterial blooms occur in many parts of the world as a result of entirely natural causes or human activity. Due to their negative effects on water resources, efforts are made to monitor cyanobacteria dynamics. This study discusses the contribution of remote sensing methods for mapping cyanobacterial blooms in lakes in northern Italy. Semi-empirical approaches were used to flag scum and cyanobacteria and spectral inversion of bio-optical models was adopted to retrieve chlorophyll-a (Chl-a) concentrations. Landsat-8 OLI data provided us both the spatial distribution of Chl-a concentrations in a small eutrophic lake and the patchy distribution of scum in Lake Como. ENVISAT MERIS time series collected from 2003 to 2011 enabled the identification of dates when cyanobacterial blooms affected water quality in three small meso-eutrophic lakes in the same region. On average, algal blooms occurred in the three lakes for about 5 days a year, typically in late summer and early autumn. A suite of hyperspectral sensors on air- and space-borne platforms was used to map Chl-a concentrations in the productive waters of the Mantua lakes, finding values in the range of 20 to 100 mgm-3. The present findings were obtained by applying state of the art of methods applied to remote sensing data. Further research will focus on improving the accuracy of cyanobacteria mapping and adapting the algorithms to the new-generation of satellite sensors.

Download Full-text

Performance comparisons of particle swarm optimization, echo state neural network and genetic algorithm for vegetation segmentation

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i1.1.9286 ◽

2017 ◽

Vol 7 (1.1) ◽

pp. 184

Author(s):

Rincy Merlin Mathew ◽

S. Purushothaman ◽

P. Rajeswari

Keyword(s):

Neural Network ◽

Genetic Algorithm ◽

Particle Swarm Optimization ◽

Soft Computing ◽

Particle Swarm ◽

Band 3 ◽

Landsat 8 ◽

Swarm Optimization ◽

Landsat 7 ◽

Performance Comparisons

This article presents the implementation of vegetation segmentation by using soft computing methods: particle swarm optimization (PSO), echostate neural network(ESNN) and genetic algorithm (GA). Multispectral image with the required band from Landsat 8 (5, 4, 3) and Landsat 7 (4, 3, 2) are used. In this paper, images from ERDAS format acquired by Landsat 7 ‘Paris.lan’ (band 4, band 3, Band 2) and image acquired from Landsat 8 (band5, band 4, band 3) are used. The soft computing algorithms are used to segment the plane-1(Near infra-red spectra) and plane 2(RED spectra). The monochrome of the two segmented images is compared to present performance comparisons of the implemented algorithms.

Download Full-text

Land Cover Change Investigation in the Southern Syrian Coastal Basins During the Past 30-Years Using Landsat Remote Sensing Data

Journal of Environmental Geography ◽

10.2478/jengeo-2018-0006 ◽

2018 ◽

Vol 11 (1-2) ◽

pp. 45-51 ◽

Cited By ~ 1

Author(s):

Muhannad Hammad ◽

László Mucsi ◽

Boudewijn van Leeuwen

Keyword(s):

Land Cover ◽

Land Cover Change ◽

Remote Sensing Data ◽

Landsat 8 ◽

Landsat 7 ◽

Coastal Basins ◽

Major Increase ◽

Temporal And Spatial ◽

Land Cover Maps ◽

Conflict Period

Abstract Land cover change and deforestation are important global ecosystem hazards. As for Syria, the current conflict and the subsequent absence of the forest preservation are main reasons for land cover change. This study aims to investigate the temporal and spatial aspects and trends of the land cover alterations in the southern Syrian coastal basins. In this study, land cover maps were made from surface reflectance images of Landsat-5(TM), Landsat-7(ETM+) and Landsat-8(OLI) during May (period of maximum vegetation cover) in 1987, 2002 and 2017. The images were classified into four different thematic classes using the maximum likelihood supervised classification method. The classification results were validated using 160 validation points in 2017, where overall accuracy was 83.75%. Spatial analysis was applied to investigate the land cover change during the period of 30 years for each basin and the whole study area. The results show 262.40 km2 reduction of forest and natural vegetation area during (1987-2017) period, and 72.5% of this reduction occurred during (2002-2017) period due to over-cutting of forest trees as a source of heating by local people, especially during the conflict period. This reduction was particularly high in the Alabrash and Hseen basins with 76.13 and 79.49 km2 respectively, and was accompanied by major increase of agriculture lands area which is attributed to dam construction in these basins which allowed people to cultivate rural lands for subsistence or to enhance their economic situation. The results of this study must draw the relevant authorities’ attention to preserve the remaining forest area.

Download Full-text

Hubungan antara Kelestarian Ekonomi dan Lingkungan: Suatu Kajian Literatur

Binus Business Review ◽

10.21512/bbr.v4i2.1400 ◽

2013 ◽

Vol 4 (2) ◽

pp. 841-850 ◽

Cited By ~ 1

Author(s):

Heri Sukendar W

Keyword(s):

Economic Growth ◽

Environmental Sustainability ◽

Economic Activity ◽

Economic Valuation ◽

Empirical Literature ◽

Economic Instruments ◽

Economic Activities ◽

Positive Research ◽

Assessment Techniques ◽

The Relationship

Pollution of the environment faced is generally caused by economic activity. Traditional economic theory placed trade-off between economic growth and environmental quality. However, since the early 1990s the empirical literature and theoretical literature have been growing rapidly. Research has shown that the relationship between economic growth and the environment can be positive. Research has shown the effect of income on environmental sustainability, control of population density. However, environmental pollution can be controlled to obtain optimal pollution which gives the maximum net benefits of economic activity. Identification of contaminants is required when optimal pollution can be determined. Economic instruments can be used to sue the polluters to control their economic activities. Selection of economic instruments that will be applied will work fine if the value of environmental contamination is known. In fact, pollution is not valuable, and therefore, the economic valuation of pollution is required. Several assessment techniques have been introduced, based on the type of pollution. The results also show that the conventional wisdom focuses more on the pollution control, in which they must be combined with the development of policy options that focus on ecoefficiency aspects of environmental sustainability and innovation in the process of economic development. If not, the economic growth will continue to degrade the environment in most countries.

Download Full-text

Supraglacial debris cover assessment in the Caucasus Mountains, 1986-2000-2014

10.5194/essd-2017-96 ◽

2017 ◽

Cited By ~ 1

Author(s):

Levan G. Tielidze ◽

Roger D. Wheate ◽

Stanislav S. Kutuzov ◽

Kate Doyle ◽

Ivan I. Lavrentiev

Keyword(s):

Morphological Type ◽

Ice Age ◽

Landsat 8 ◽

Glacier Area ◽

Greater Caucasus ◽

Rock Structure ◽

Debris Cover ◽

Landsat 7 ◽

Caucasus Mountains ◽

Elevation Model

Abstract. Surpaglacial debris cover plays an increasingly important role impacting on glacier ablation, while there have been limited recent studies for the assessment of debris covered glaciers in the Greater Caucasus mountains. We selected 559 glaciers according to the sections and macroslopes in the Greater Caucasus main watershed range and the Elbrus massif to assess supraglacial debris cover (SDC) for the years 1986, 2000 and 2014. Landsat (Landsat 5 TM, Landsat 7 ETM+, Landsat 8 OLI) and SPOT satellite imagery were analysed to generate glacier outlines using manual and semi-automated methods, along with slope information from a Digital Elevation Model. The study shows there is greater SDC area on the northern than the southern macroslope, and more in the eastern section than the western and central. In 1986-2000-2014, the SDC area increased from 6.4 %-8.2 %-19.4 % on the northern macroslope (apart from the eastern Greater Caucasus section), while on the southern macroslope, SDC increased from 4.0 %-4.9 %-9.2 %. Overall, debris covered glacier numbers increased from 122-143-172 (1986-2000-2014) for 559 selected glaciers. Despite the total glacier area decrease, the SDC glacier area and numbers increased as a function of slope inclination, aspect, glacier morphological type, Little Ice Age (LIA) moraines, rock structure and elevation. The datasets are available for public download at https://doi.pangaea.de/10.1594/PANGAEA.880147.

Download Full-text

Komparasi Kemampuan Citra Satelit Landsat Dalam Mengidentifikasi Suhu Permukaan Daratan Di Kota Pekalongan

10.31219/osf.io/zprqv ◽

2020 ◽

Author(s):

Trida Ridho Fariz ◽

Tjaturahono Budi Sanjoto ◽

Dewi Liesnoor Setyowati

Keyword(s):

Brightness Temperature ◽

Landsat 8 ◽

Landsat 7

Kajian pemetaan suhu permukaan daratan (LST) berbasis citra Landsat sudah sering dilakukan di Indonesia. Tetapi kajian yang membandingkan kemampuan citra satelit Landsat-7 dan Landsat-8 masih jarang dilakukan. Padahal kedua saluran termal pada citra satelit Landsat-7 dan Landsat-8 memiliki kelebihan dan kekurangan masing-masing, sehingga perlu dilakukan kajian untuk membandingkan kemampuan kedua citra satelit tersebut. Penelitian ini bertujuan untuk membandingkan kemampuan band termal antara citra satelit Landsat 7 dengan citra satelit Landsat 8 hanya untuk identifikasi LST, selain itu juga mengetahui perubahannya secara temporal.Data yang digunakan dalam penelitian ini adalah citra satelit Landsat 7 dan Landsat 8. Tahapan analisis data dimulai dengan pengolahan citra satelit untuk suhu perukaan daratan yang terdiri dari kalibrasi radian, koreksi atmosferik, konversi brightness temperature lalu diakhiri dengan konversi suhu permukaan daratan. Setiap peta suhu permukaan daratan dianalisis statistik berupa regresi linier dengan data suhu permukaan daratan hasil pengukuran dilapangan.Hasil penelitian ini menunjukkan bahwa citra satelit Landsat 8 cenderung lebih baik dalam memetakan LST di Kota Pekalongan. Citra satelit Landsat 8 juga digunakan untuk mengidentifikasi perubahan LST di Kota Pekalongan. Kota Pekalongan dalam kurun tahun 2015 sampai 2019 telah terjadi peningkatan suhu sekitar 0,60C. Wilayah yang menngalami perubahan suhu terbsar adalah Kecamatan Pekalongan Selatan.

Download Full-text

Monitoreo del proceso de afectación del páramo andino venezolano a través de un análisis multitemporal

REVISTA GEOGRÁFICA VENEZOLANA ◽

10.53766/rgv/2021.62.02.01 ◽

2021 ◽

Vol 62 (2) ◽

pp. 298-314

Author(s):

Jesús Araujo ◽

Yolanda Molina

Keyword(s):

Landsat 8 ◽

Landsat 7

La investigación midió el proceso de afectación del páramo andino venezolano mediante un análisis multitemporal del indicador ‘cobertura vegetal de páramo andino intervenida’, usando imágenes Landsat 7 de los años 2006 y 2012, y Landsat 8 del año 2016, que abarcan el municipio Rangel del estado Mérida, como parte de un sistema de indicadores de gestión diseñado en el marco del Plan de Acción para la Conservación del Páramo Andino Venezolano. Los resultados muestran una disminución de 538,69 ha de superficie de páramo andino, a consecuencia de intervenciones entre los años 2006 y 2016. Adicionalmente, se identificó un incremento de 426,08 ha de la superficie de selva nublada montano alta, ocupando áreas previamente dominadas por vegetación de páramo, debido al avance altitudinal de los bosques andinos en las vertientes húmedas posiblemente como consecuencia del cambio climático.

Download Full-text