International Journal of Environment and Geoinformatics最新文献_第5页

Extraction of Water Bodies from Sentinel-2 Images in the Foothills of Nepal Himalaya 尼泊尔喜马拉雅山麓Sentinel-2图像水体提取研究

International Journal of Environment and Geoinformatics Pub Date : 2023-06-15 DOI: 10.30897/ijegeo.1240074

Kumod Lekhak, P. Rai, P. Budha

{"title":"Extraction of Water Bodies from Sentinel-2 Images in the Foothills of Nepal Himalaya","authors":"Kumod Lekhak, P. Rai, P. Budha","doi":"10.30897/ijegeo.1240074","DOIUrl":"https://doi.org/10.30897/ijegeo.1240074","url":null,"abstract":"This paper evaluates an integrated water body mapping method in sub Himalayan region of Nepal with optical images of Sentinel – 2 satellites of European Space Agency. The objectives of this study is to evaluating the integrated method of water body mapping with Sentinel – 2 data and to find the optimal mapping method in Sub Himalaya region. This method extracts the information on water bodies by combining image indices and near infrared band and used slope image to remove false results.. The study results indicate that difference of indices is more accurate to map the water bodies than single index method as it enhance the contrast between water bodies and other environmental features. On the basis of the accurately mapped water bodies of the study area, this research conclude that the multi spectral images from the Sentinel images can be ideal data source for water bodies monitoring with fine spatial and temporal resolution. Although smaller water bodies with high vegetation cover cannot be detected by this method, the integrated water body mapping method is suitable for the applications multi-spectral images in this field.","PeriodicalId":176110,"journal":{"name":"International Journal of Environment and Geoinformatics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128859949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Comparison of Maritime and Road Transportations in Emissions Perspective: A Review Article 排放视角下的海上和公路运输比较:综述

International Journal of Environment and Geoinformatics Pub Date : 2023-06-15 DOI: 10.30897/ijegeo.1254161

Kevın Nusa, Gizem Kodak

{"title":"Comparison of Maritime and Road Transportations in Emissions Perspective: A Review Article","authors":"Kevın Nusa, Gizem Kodak","doi":"10.30897/ijegeo.1254161","DOIUrl":"https://doi.org/10.30897/ijegeo.1254161","url":null,"abstract":"The international maritime organization (IMO) in its attempt to avert a global environmental crisis continues to provide policies to mitigate anthropogenic emissions from the transport industry. The greenhouse gas emissions from the transport industry are relatively large, alarming, and continue to raise. Therefore, it is the focal point for the fight against global warming. This article centers on transport emissions from transportation modes with a particular focus on ocean-going vessels and road vehicles. The aim is to conduct a literature review that beams a search on emissions comparison between marine vessels and general road vehicles as a means to support a modal shift from an environmental perspective. Thus, it is aimed to create a source for future studies and to contribute to the literature. For this purpose, X articles published between 2012-2022 were reached with the keywords \"ship emissions\", \"road emissions\", \"GHG emissions\" and \"environmental sustainability\", and 7 articles focusing on ship and road transportation were filtered out of them. Obtained results support the conclusion that ships contribute relatively little to the transport emissions footprint, given the enormous volume of cargo carried. In other words, environmental sustainability can be achieved through a possible modal shift from road transport to ship transport.","PeriodicalId":176110,"journal":{"name":"International Journal of Environment and Geoinformatics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121507575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Site Selection and Capacity Determination of Potential Offshore Wind Farm in Western Black Sea Region of Turkiye 土耳其黑海西部地区潜在海上风电场选址与容量确定

International Journal of Environment and Geoinformatics Pub Date : 2023-06-15 DOI: 10.30897/ijegeo.1265116

Rahman Gahramanov, S. Beji

引用次数: 0

Uzaktan Algılama Teknikleri ile Orman Yangınının Neden Olduğu Hasarın Tayin Edilmesi

International Journal of Environment and Geoinformatics Pub Date : 2023-06-15 DOI: 10.30897/ijegeo.1089014

Gamze Öncü, Özşen Çorumluoğlu

引用次数: 0

An Assessment of Long-Term Urban Heat Island Impact on Istanbul’s Climate 城市热岛对伊斯坦布尔气候的长期影响评估

International Journal of Environment and Geoinformatics Pub Date : 2023-06-15 DOI: 10.30897/ijegeo.1230381

M. Baykara

{"title":"An Assessment of Long-Term Urban Heat Island Impact on Istanbul’s Climate","authors":"M. Baykara","doi":"10.30897/ijegeo.1230381","DOIUrl":"https://doi.org/10.30897/ijegeo.1230381","url":null,"abstract":"Istanbul with its high urban population increase and rapid rate of its unplanned urbanization, it is critical to investigate the relations between urban heat island, population growth, and changes in the urban land use. The aim of this work is to study the local climate change and the effects of urbanization on urban climate of megacity Istanbul. Temporal variations of urban heat island (UHI) and UHI intensity in Istanbul were analyzed by using air temperature data measured by five meteorology stations for the period of 1951–2020. Minimum, maximum, and mean temperature data of Istanbul were used to understand the possible impacts of urbanization on the climate of the megacity. In addition, Corine Land Cover (CLC) datasets for the years 1990, 2000, 2012, and 2018, were used to visualize the spread of urban cover throughout the city. Seasonal observations data were statistically tested for monotonic trends. Significant upward trends in temperature were found in all selected stations, both rural and urban. The air temperature in urban areas, densely populated residential areas of the Istanbul, has increased more in years compared to its rural parts. The results showed an increase of night time (minimum temperature) temperature in both urban and rural stations between 0.010 – 0.047 °C yr-1 and an increase of daytime (maximum temperature) in all stations between 0.026 – 0.034 °C yr-1. The urban heat island impact increased over Istanbul with the expansion of the urban areas toward rural areas further reducing green areas.","PeriodicalId":176110,"journal":{"name":"International Journal of Environment and Geoinformatics","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116604289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Toxic Metal-Induced Ecological Risk in Kepez Stream, Çanakkale, Türkiye Kepez溪有毒金属生态风险分析，Çanakkale, trkiye

International Journal of Environment and Geoinformatics Pub Date : 2023-06-15 DOI: 10.30897/ijegeo.1240397

Havva Çavuş, Serkan Kükrer, Müberra Sağlam, A. E. Erginal

{"title":"Analysis of Toxic Metal-Induced Ecological Risk in Kepez Stream, Çanakkale, Türkiye","authors":"Havva Çavuş, Serkan Kükrer, Müberra Sağlam, A. E. Erginal","doi":"10.30897/ijegeo.1240397","DOIUrl":"https://doi.org/10.30897/ijegeo.1240397","url":null,"abstract":"Ecological risk in the mouth of Kepez Stream has recently increased notably due to waste from the Kepez settlement, agricultural activity in the Kepez delta, maritime traffic in the Çanakkale Strait, and summer houses in the coastal area. This study analyzed the ecological risk of 10 sediment samples along the bed in the mouth of Kepez Stream to shed light on anthropogenically induced pollution. The pollution proxies such as chlorophyll degradation products, heavy metal concentrations and organic carbon of the sediment samples were determined. Enrichment Factor (EF), Contamination Factor (CF), Geoaccumulation Index (Igeo) and Potential Ecological Risk Index (PER) were calculated from the results obtained. Spearman's correlation analysis and factor analysis were also performed. The obtained data show that there is moderate enrichment of Zn, As and Co, a significant level of Pb, and very high level of Cr in the sediments of Kepez Stream. Ni enrichment was determined to be excessive and poses a high potential ecological risk. Cleaning and rehabilitation need to be carried out urgently in the mouth of Kepez Stream. It should be determined whether metals are being transmitted to aquatic organisms, and measures should be taken to reduce the sources of pollution.","PeriodicalId":176110,"journal":{"name":"International Journal of Environment and Geoinformatics","volume":"496 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122755853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Grain Size Trend Analysis and Multi-Index Pollution Assessment of Marine Sediments of the Gülbahçe Bay, Aegean Sea 爱琴海g<s:1> lbahalte湾海相沉积物粒度趋势分析及多指标污染评价比较

International Journal of Environment and Geoinformatics Pub Date : 2023-06-15 DOI: 10.30897/ijegeo.1292129

Ezgi Talas, M. Duman

{"title":"Comparison of Grain Size Trend Analysis and Multi-Index Pollution Assessment of Marine Sediments of the Gülbahçe Bay, Aegean Sea","authors":"Ezgi Talas, M. Duman","doi":"10.30897/ijegeo.1292129","DOIUrl":"https://doi.org/10.30897/ijegeo.1292129","url":null,"abstract":"In this study, 46 elements plus total carbonate and total organic carbon contents were measured in 48 sea bottom sediments to determine the pollution levels in the study area and their source to understand better the natural and anthropogenic processes in the study area. Also current flows and sediment transport pathways inferred using multidisciplinary methods by interrelation between grain size trend analysis, shallow seismic and acoustic doppler current profiler analysis to unravel the hydro-sedimentary processes in a micro-tidal environment. Four main factors that were affecting the study area were identified as lithogenic factor (50.6%) anthropogenic factor caused by untreated domestic waste (13.2%), anthropogenic factor caused by marine traffic/port activities (9.3%) and anthropogenic factor caused by small-scale industrial activities (with 6.9% of the total variance). The main source of metals in the study area were determined as untreated domestic waste discharges (total organic carbon and sulfur), maritime traffic/harbor activities (copper and zinc), and discharges of other wastes caused by urbanization. The main metal element that poses the most significant risk for benthic organisms was determined as nickel in the study area. All environmental indices showed non to moderate pollution existing in Gülbahçe Bay. It has been observed that most prominent feature of the distribution of elemental concentrations and assessment of pollution indices were that the pollutants carried inwards to Gülbahçe Bay from Izmir Central Bay with inflows, following the sediment transport directions.","PeriodicalId":176110,"journal":{"name":"International Journal of Environment and Geoinformatics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129368270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Microplastic in Holothuria leucospilota (Echinodermata-Holothuroidea) and Sediments from Karachi coast, (Northern Arabian Sea) 北阿拉伯海卡拉奇海岸沉积物中leucospilota Holothuria(棘皮- holothuro总科)的微塑料分析

International Journal of Environment and Geoinformatics Pub Date : 2023-03-19 DOI: 10.30897/ijegeo.1254544

Quratulan Ahmed, Ayşah Öztekin, Q. Ali, L. Bat, Iqra Shaikh

引用次数: 0

Environmental Statistical Analysis on the Impacts of Marine Mucilage on some Seawater Quality Parameters 海洋黏液对部分海水水质参数影响的环境统计分析

International Journal of Environment and Geoinformatics Pub Date : 2023-03-19 DOI: 10.30897/ijegeo.1187859

Hasan Volkan Oral

引用次数: 0

UAV Image-Based Plan Drawing Method in Submerged Terrestrial Archaeological Settlements: The case of Kibotos 基于无人机图像的水下陆地考古聚落平面绘制方法:以Kibotos为例

International Journal of Environment and Geoinformatics Pub Date : 2023-03-15 DOI: 10.30897/ijegeo.1231224

S. Gündüz

引用次数: 0