Public perspective on the environmental impacts of sea sand mining: Evidence from a choice experiment in South Korea

2020 ◽  
Vol 69 ◽  
pp. 101811
Author(s):  
Ju-Hee Kim ◽  
Seung-Hoon Yoo
Keyword(s):  
South Korea ◽  
Environmental Impacts ◽  
Choice Experiment ◽  
Sand Mining ◽  
Sea Sand ◽  
Public Perspective

scholarly journals Legal regulation on protecting marine environment from sea sand mining impact: a case study of spermonde archipelago

2021 ◽  
Vol 860 (1) ◽  
pp. 012092
Author(s):  
Maskun ◽  
Sri Susyanti Nur ◽  
Achmad ◽  
Nurul Habaib Al Mukarramah ◽  
Muhammad Arfan Arif
Keyword(s):  
Marine Environment ◽  
Legal Regulation ◽  
Sand Mining ◽  
Sea Sand ◽  
Mining Impact ◽  
Spermonde Archipelago

scholarly journals Valuing Improved Power Supply Reliability for Manufacturing Firms in South Korea: Results from a Choice Experiment Survey

2018 ◽  
Vol 10 (12) ◽  
pp. 4516
Author(s):  
Doo-Chun Kim ◽  
Hyo-Jin Kim ◽  
Seung-Hoon Yoo
Keyword(s):  
South Korea ◽  
Power Supply ◽  
Choice Experiment ◽  
Manufacturing Sector ◽  
Manufacturing Firms ◽  
Economic Damage ◽  
Electricity Supply ◽  
Industrial Sectors ◽  
Electricity Bill ◽  
Supply Reliability

An outage of electricity may cause considerable economic damage to industrial sectors. Thus, South Korea electricity authorities demand information about the value of improved power supply reliability for the manufacturing sector to implement them in planning electricity supply. This article aims to measure the value using a specific case of South Korean manufacturing firms. The choice experiment (CE) approach is adopted for this purpose. A nationwide CE survey of 1148 manufacturing firms was undertaken. The firms revealed statistically significant willingness to pay for a decrease in the duration of interruption, avoiding interruption during daytime (9 a.m. to 6 p.m.) rather than off-daytime (6 p.m. to 9 a.m.), and preventing interruption during weekdays rather than weekend. For example, they accepted a 0.02% increase in the electricity bill for reducing one minute of interruption during electricity outage, a 2.98% increase in the electricity bill to avoid interruption during the daytime rather than off-daytime, and a 1.60% increase in electricity bill for preventing interruption during weekdays rather than weekends. However, they put no importance on the season of interruption. These results can be useful for policy-making and decision-making regarding improving electricity supply reliability.

scholarly journals On FTCS Approach for Box Model of Three-Dimension Advection-Diffusion Equation

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Jeffry Kusuma ◽  
Agustinus Ribal ◽  
Andi Galsan Mahie
Keyword(s):  
Mathematical Model ◽  
Three Dimension ◽  
Sand Mining ◽  
Mining Pollution ◽  
Advection Diffusion Equation ◽  
Advection Diffusion ◽  
Diffusion Parameters ◽  
Sea Sand ◽  
And Diffusion ◽  
Pollution Distribution

This paper describes a numerical solution for mathematical model of the transport equation in a simple rectangular box domain. The model of street tunnel pollution distribution using two-dimension advection and three-dimension diffusion is solved numerically. Because of the nature of the problem, the model is extended to become three-dimension advection and three-dimension diffusion to study the sea-sand mining pollution distribution. This model with various advection and diffusion parameters and the boundaries conditions is also solved numerically using a finite difference (FTCS) method.

scholarly journals Shoreline Change Analysis of Pontang Cape of Serang Regency of Banten Province

Omni-Akuatika ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 90
Author(s):  
Abdurrahman Al Farrizi ◽  
Ankiq Taofiqurohman ◽  
Subiyanto Subiyanto
Keyword(s):  
Coastal Zone ◽  
Shoreline Change ◽  
Sand Mining ◽  
Change Analysis ◽  
Factors Affecting ◽  
Shoreline Changes ◽  
Sea Sand ◽  
Digital Shoreline Analysis System ◽  
Analysis System ◽  
Shoreline Change Analysis

Coastal areas, being vulnerable to environmental problems, have one of the most frequent problems which are the change in the shorelines. Shoreline changes, namely abrasions, can cause problems such as land degradations or loss of land in a coastal zone. This problem occurs in many areas, one of which is Pontang Cape. This study aims to determine the distance and rate of shoreline changes that occured in the Cape and its surroundings, as well as explaining the analysis points based on similar studies that had been conducted. This research used ArcMap software and Digital Shoreline Analysis System (DSAS) toolset to determine the distance and rate of shoreline changes for 19 years (1999-2018). Based on the results, there were two shoreline segments where different phenomena of shoreline change took place, namely Banten Bay (accretion) and Pontang Cape-Lontar (abrasion). The most likely causes of changes in the shorelines are sediment runoffs from rivers that lead to bay and sediment transports that affect Banten Bay accretions, while sea sand mining and conversions of mangrove swamps into fishery ponds are factors affecting abrasions in Pontang Cape.Keywords: Abrasion, Accretion, Pontang Cape, Banten Bay, DSAS

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