Pub Date : 2023-08-28DOI: 10.7494/geom.2023.17.5.5
Erdiwansyah Erdiwansyah, A. Gani, Rizalman Mamat, M. Nizar, S. Yana, S. M. Rosdi, M. Zaki, R. E. Sardjono
Renewable energy has the potential to power the global economy and effective business models will significantly aid this goal, being among the most critical factors in spurring expansion in the energy industry. This paper reviews articles that discuss business models in the renewable energy sector. Longterm economic, social, and ecological stability is concerned. Previous studies have neglected the environmental sustainability of renewable energy business models, focusing on their technical, social, and economic aspects, primarily for energy access. The business models for solar home and pico systems relied heavily on lowering costs through creative payment plans for customers to be commercially viable. The demand for mini-grids requires end users to launch businesses that can leverage electrification initiatives to be commercially viable. The success of a mini-grid depends on the average consumption and revenue per user. Affordability, unmet energy needs, low electricity demand, lack of financing, unfamiliar business models, and immature markets have impeded energy access in Indonesia. Our analysis revealed that future studies in this field must include environmental sustainability to provide a complete picture for decision-makers. Renewable energy needs in Indonesia can be achieved through the sustainability domain, policy makers can consult this evidence set.
{"title":"The Business Model for Access to Affordable RE on Economic, Social, and Environmental Value: A review","authors":"Erdiwansyah Erdiwansyah, A. Gani, Rizalman Mamat, M. Nizar, S. Yana, S. M. Rosdi, M. Zaki, R. E. Sardjono","doi":"10.7494/geom.2023.17.5.5","DOIUrl":"https://doi.org/10.7494/geom.2023.17.5.5","url":null,"abstract":"Renewable energy has the potential to power the global economy and effective business models will significantly aid this goal, being among the most critical factors in spurring expansion in the energy industry. This paper reviews articles that discuss business models in the renewable energy sector. Longterm economic, social, and ecological stability is concerned. Previous studies have neglected the environmental sustainability of renewable energy business models, focusing on their technical, social, and economic aspects, primarily for energy access. The business models for solar home and pico systems relied heavily on lowering costs through creative payment plans for customers to be commercially viable. The demand for mini-grids requires end users to launch businesses that can leverage electrification initiatives to be commercially viable. The success of a mini-grid depends on the average consumption and revenue per user. Affordability, unmet energy needs, low electricity demand, lack of financing, unfamiliar business models, and immature markets have impeded energy access in Indonesia. Our analysis revealed that future studies in this field must include environmental sustainability to provide a complete picture for decision-makers. Renewable energy needs in Indonesia can be achieved through the sustainability domain, policy makers can consult this evidence set.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41490859","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}
Pub Date : 2023-08-28DOI: 10.7494/geom.2023.17.5.61
N. Wickramathilaka, U. Ujang, S. Azri, T. Choon
Road traffic noise visualization is vital in three-dimensional (3D) space. Designing noise observation points (NOPs) and the developments of spatial interpolations are key elements for the visualization of traffic noise in 3D. Moreover, calculating road traffic noise levels by means of a standard noise model is vital. This study elaborates on the developments of data and spatial interpolations in 3D noise visualization. In 3D spatial interpolation, the value is interpolated in both horizontal and vertical directions. Eliminating flat triangles is vital in the vertical direction. Inverse distance weighted (IDW), kriging, and triangular irregular network (TIN) are widely used to interpolate noise levels. Because these interpolations directly support the interpolation of three parameters, the developments of spatial interpolations should be applied to interpolate noise levels in 3D. The TIN noise contours are primed to visualize traffic noise levels while IDW and kriging provide irregular contours. Further, this study has identified that the TIN noise contours fit exactly with NOPs in 3D. Moreover, advanced kriging interpolation such as empirical Bayesian kriging (EBK) also provides irregular shape contours and this study develops a comparison for such contours. The 3D kriging in EBK provides a significant approach to interpolate noise in 3D. The 3D kriging voxels show a higher accurate visualization than TIN noise contours.
{"title":"Calculation of Road Traffic Noise, Development of Data, and Spatial Interpolations for Traffic Noise Visualization in Three-dimensional Space","authors":"N. Wickramathilaka, U. Ujang, S. Azri, T. Choon","doi":"10.7494/geom.2023.17.5.61","DOIUrl":"https://doi.org/10.7494/geom.2023.17.5.61","url":null,"abstract":"Road traffic noise visualization is vital in three-dimensional (3D) space. Designing noise observation points (NOPs) and the developments of spatial interpolations are key elements for the visualization of traffic noise in 3D. Moreover, calculating road traffic noise levels by means of a standard noise model is vital. This study elaborates on the developments of data and spatial interpolations in 3D noise visualization. In 3D spatial interpolation, the value is interpolated in both horizontal and vertical directions. Eliminating flat triangles is vital in the vertical direction. Inverse distance weighted (IDW), kriging, and triangular irregular network (TIN) are widely used to interpolate noise levels. Because these interpolations directly support the interpolation of three parameters, the developments of spatial interpolations should be applied to interpolate noise levels in 3D. The TIN noise contours are primed to visualize traffic noise levels while IDW and kriging provide irregular contours. Further, this study has identified that the TIN noise contours fit exactly with NOPs in 3D. Moreover, advanced kriging interpolation such as empirical Bayesian kriging (EBK) also provides irregular shape contours and this study develops a comparison for such contours. The 3D kriging in EBK provides a significant approach to interpolate noise in 3D. The 3D kriging voxels show a higher accurate visualization than TIN noise contours.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46123331","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}
Pub Date : 2023-07-21DOI: 10.7494/geom.2023.17.4.77
Y. E. Çoruhlu, Sibel Er Nas, B. Uzun, O. Yìldiz, F. Şahin, Fatih Terzi, M. Çelik
Türkiye has a wealth of foundations and their properties, assets managed by the General Directorate of Foundations (GDF) through its geomatics engineers. This article aims to identify the misconceptions of senior undergraduate geomatics engineering students (sample group) about the relationship between foundations and land ownership registered as cultural heritage. It will develop and implement materials to eliminate these misconceptions and evaluate their effectiveness. This study consists of a preliminary, a pilot and the main application. The data collection instruments are an open-ended questionnaire, a semi-structured interview form and conceptual understanding tests. As a result of the analysis of the pre-study and the pilot study, guidance materials on information deficits and misunderstandings in the application of Article 30 of the Law on Foundations were developed. In the analysis of the quantitative data, the Wilcoxon signed-rank test is used, a non-parametric analysis methods. In the light of the data obtained from the study, it is recommended that materials be developed in other areas of land management to investigate their effectiveness.
{"title":"Development of Guide Material for the Education of Cultural Immovable Heritage Management for Bachelor Students of Geomatics Engineering","authors":"Y. E. Çoruhlu, Sibel Er Nas, B. Uzun, O. Yìldiz, F. Şahin, Fatih Terzi, M. Çelik","doi":"10.7494/geom.2023.17.4.77","DOIUrl":"https://doi.org/10.7494/geom.2023.17.4.77","url":null,"abstract":"Türkiye has a wealth of foundations and their properties, assets managed by the General Directorate of Foundations (GDF) through its geomatics engineers. This article aims to identify the misconceptions of senior undergraduate geomatics engineering students (sample group) about the relationship between foundations and land ownership registered as cultural heritage. It will develop and implement materials to eliminate these misconceptions and evaluate their effectiveness. This study consists of a preliminary, a pilot and the main application. The data collection instruments are an open-ended questionnaire, a semi-structured interview form and conceptual understanding tests. As a result of the analysis of the pre-study and the pilot study, guidance materials on information deficits and misunderstandings in the application of Article 30 of the Law on Foundations were developed. In the analysis of the quantitative data, the Wilcoxon signed-rank test is used, a non-parametric analysis methods. In the light of the data obtained from the study, it is recommended that materials be developed in other areas of land management to investigate their effectiveness.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42146730","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}
Pub Date : 2023-07-21DOI: 10.7494/geom.2023.17.4.53
Szczepan Budkowski
The purpose of this publication is to analyze air pollution on the example of the city of Krakow, as well as to consider the possibility of using geodata for environmental protection. In addition to case study analysis as the leading research method, the article also uses the observation, analysis, and statistical methods. The article presents the concept of using GIS spatial analyzes and spatial planning as an element of the Green New Deal in the process of ventilating the city of Krakow.When developing a project related to city ventilation, it is extremely important to have the most accurate data on the strength, direction of the wind, type of pollution, and the number of emitters. Spatial analyzes are also able to indicate the main ventilation corridors of the city. These include, above all, areas located on the Vistula River, but also the widest city streets. Such results make it possible to more consciously manage space.
{"title":"The Use of Geodata in the Process of the Ventilation of the City of Krakow","authors":"Szczepan Budkowski","doi":"10.7494/geom.2023.17.4.53","DOIUrl":"https://doi.org/10.7494/geom.2023.17.4.53","url":null,"abstract":"The purpose of this publication is to analyze air pollution on the example of the city of Krakow, as well as to consider the possibility of using geodata for environmental protection. In addition to case study analysis as the leading research method, the article also uses the observation, analysis, and statistical methods. The article presents the concept of using GIS spatial analyzes and spatial planning as an element of the Green New Deal in the process of ventilating the city of Krakow.When developing a project related to city ventilation, it is extremely important to have the most accurate data on the strength, direction of the wind, type of pollution, and the number of emitters. Spatial analyzes are also able to indicate the main ventilation corridors of the city. These include, above all, areas located on the Vistula River, but also the widest city streets. Such results make it possible to more consciously manage space.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45851922","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}
Pub Date : 2023-06-06DOI: 10.7494/geom.2023.17.4.33
Krzysztof Sokół, K. Sobolewska-Mikulska
Celem artykułu jest analiza postępowania, w wyniku którego dokonuje się określenia wartości nieruchomości oraz próba wychwycenia przyczyn, dla których sądowe ustalenie wartości nieruchomości wymaga niekiedy kolejnego lub kolejnych opinii o wartości nieruchomości kolejnych biegłych rzeczoznawców majątkowych. Na potrzeby niniejszego artykułu zastosowano metodę badania indywidualnych przypadków tj. dwóch przykładowych spraw sądowych, w których sporządzano opinie główne, opinie uzupełniające, kolejne opinie uzupełniające, kolejne opinie główne i gdzie biegły rzeczoznawca majątkowy był dodatkowo wzywany na rozprawę celem złożenia bezpośrednio przed sądem ustnej uzupełniającej opinii.
{"title":"Określanie wartości nieruchomości przez biegłych rzeczoznawców majątkowych w postępowaniu sądowym","authors":"Krzysztof Sokół, K. Sobolewska-Mikulska","doi":"10.7494/geom.2023.17.4.33","DOIUrl":"https://doi.org/10.7494/geom.2023.17.4.33","url":null,"abstract":"Celem artykułu jest analiza postępowania, w wyniku którego dokonuje się określenia wartości nieruchomości oraz próba wychwycenia przyczyn, dla których sądowe ustalenie wartości nieruchomości wymaga niekiedy kolejnego lub kolejnych opinii o wartości nieruchomości kolejnych biegłych rzeczoznawców majątkowych. Na potrzeby niniejszego artykułu zastosowano metodę badania indywidualnych przypadków tj. dwóch przykładowych spraw sądowych, w których sporządzano opinie główne, opinie uzupełniające, kolejne opinie uzupełniające, kolejne opinie główne i gdzie biegły rzeczoznawca majątkowy był dodatkowo wzywany na rozprawę celem złożenia bezpośrednio przed sądem ustnej uzupełniającej opinii.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45760257","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}
Pub Date : 2023-04-14DOI: 10.7494/geom.2023.17.4.19
A. Kurniawan, Widodo S Pranowo, Karen Slamet Hardjo, A. Santoso, N. Khakhim, T. H. Purwanto, Johar Setiyadi
The ocean is a formation that has a volume and consists of a surface layer of water, a column, and a bottom. Visualization of the sea on a digital map is important to support the acceleration of marine spatial planning (MSP), which is generally two-dimensional on a flat plane. A marine cadastre is defined as an instrument used in managing spatial boundaries, which describes, visualizes, and realizes legally defined boundaries as well as rights, restrictions, and responsibilities related to activities in the marine environment. Therefore, visualization in 3D will open a wider perspective than conventional maps. The 3D marine cadastral system was built using the Penanjung Bay pilot project and the QGIS2ThreeJS plugin with JavaScript. The results obtained can provide a 3D visualization of the position and boundaries for each component of the marine cadastre in Penanjung Bay with a broader picture of the sea spatial layout in the region.
{"title":"3D Marine Cadastral System to Support Marine Spatial Planning Implementation in Indonesia: A Case Study of Penanjung Bay, Indonesia","authors":"A. Kurniawan, Widodo S Pranowo, Karen Slamet Hardjo, A. Santoso, N. Khakhim, T. H. Purwanto, Johar Setiyadi","doi":"10.7494/geom.2023.17.4.19","DOIUrl":"https://doi.org/10.7494/geom.2023.17.4.19","url":null,"abstract":"The ocean is a formation that has a volume and consists of a surface layer of water, a column, and a bottom. Visualization of the sea on a digital map is important to support the acceleration of marine spatial planning (MSP), which is generally two-dimensional on a flat plane. A marine cadastre is defined as an instrument used in managing spatial boundaries, which describes, visualizes, and realizes legally defined boundaries as well as rights, restrictions, and responsibilities related to activities in the marine environment. Therefore, visualization in 3D will open a wider perspective than conventional maps. The 3D marine cadastral system was built using the Penanjung Bay pilot project and the QGIS2ThreeJS plugin with JavaScript. The results obtained can provide a 3D visualization of the position and boundaries for each component of the marine cadastre in Penanjung Bay with a broader picture of the sea spatial layout in the region.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47075790","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}
Pub Date : 2023-04-14DOI: 10.7494/geom.2023.17.4.5
Rezvan Kavousi, S. M. Borghei
Over the past few decades, anaerobic-aerobic wastewater treatment systems have been widely used in industrial and municipal wastewater treatment. This study was conducted to examine the effects of combined anaerobic-aerobic bioreactors in the removal of chemical oxygen demands (COD) while reducing phosphate concentrations in synthetic wastewater. In this project, a bioreactor with the dimensions of 10 cm × 10 cm × 80 cm with respective Kaldnes packing ratios of 90 and 30% for the anaerobic and aerobic sections was designed. A combined anaerobic-aerobic reactor’s structure made changing hydraulic retention times only possible by adjusting the volume of its aerobic and anaerobic sections. In the first case, the anaerobic and aerobic sections of the reactor occupied 30 and 50 cm of its height, respectively. The height of the anaerobic section decreases to 12.5 cm in the second case. In aerobic and anaerobic sections, pH was within a neutral range, temperature was 37°C. MLSS (mixed liquor suspended solids) was 1220 and 1030 mg/L, and attached growth was 743 and1190 mg/L respectively. In order to evaluate COD in the wastewater, three different initial phosphorus concentrations were tested: 12.8, 32.0 and 44.8 mg/L, as well as four COD: 500, 1000, 1200 and 1400 mg/L. Considering the results, COD removal is greater than 80% when the valve 2 is in the anaerobic section outlet regardless of the concentration of phosphate. In this case, the best result is for inlet COD of 500, where the reactor can eliminate more than 90%. When the COD concentration reaches 1000 to 1400 ppm, the reactor’s COD removal efficiency declines to 60%.
在过去的几十年中，厌氧-好氧废水处理系统在工业和城市污水处理中得到了广泛的应用。本研究旨在考察厌氧-好氧联合生物反应器在去除化学需氧量(COD)的同时降低合成废水中磷酸盐浓度的影响。本项目设计了一个尺寸为10 cm × 10 cm × 80 cm的生物反应器，厌氧段和好氧段的卡尔德斯填料比分别为90和30%。厌氧-好氧组合反应器的结构使得只有通过调整好氧段和厌氧段的体积才能改变水力滞留时间。在第一种情况下，反应器的厌氧段和好氧段分别占其高度的30和50厘米。在第二种情况下，厌氧段的高度降低到12.5 cm。在好氧和厌氧切片中，pH值在中性范围内，温度为37℃。混液悬浮物浓度为1220和1030 mg/L，附着生长浓度为743和1190 mg/L。为了评价废水中的COD，测试了3种不同初始磷浓度:12.8、32.0和44.8 mg/L，以及4种COD: 500、1000、1200和1400 mg/L。综上所述，无论磷酸盐浓度如何，当阀2位于厌氧段出口时，COD去除率均大于80%。在这种情况下，最好的结果是进口COD为500，反应器可以消除90%以上。当COD浓度达到1000 ~ 1400ppm时，反应器的COD去除率下降到60%。
{"title":"An Application of Anaerobic-Aerobic Combined Bioreactor Efficiency in COD Removal","authors":"Rezvan Kavousi, S. M. Borghei","doi":"10.7494/geom.2023.17.4.5","DOIUrl":"https://doi.org/10.7494/geom.2023.17.4.5","url":null,"abstract":"Over the past few decades, anaerobic-aerobic wastewater treatment systems have been widely used in industrial and municipal wastewater treatment. This study was conducted to examine the effects of combined anaerobic-aerobic bioreactors in the removal of chemical oxygen demands (COD) while reducing phosphate concentrations in synthetic wastewater. In this project, a bioreactor with the dimensions of 10 cm × 10 cm × 80 cm with respective Kaldnes packing ratios of 90 and 30% for the anaerobic and aerobic sections was designed. A combined anaerobic-aerobic reactor’s structure made changing hydraulic retention times only possible by adjusting the volume of its aerobic and anaerobic sections. In the first case, the anaerobic and aerobic sections of the reactor occupied 30 and 50 cm of its height, respectively. The height of the anaerobic section decreases to 12.5 cm in the second case. In aerobic and anaerobic sections, pH was within a neutral range, temperature was 37°C. MLSS (mixed liquor suspended solids) was 1220 and 1030 mg/L, and attached growth was 743 and1190 mg/L respectively. In order to evaluate COD in the wastewater, three different initial phosphorus concentrations were tested: 12.8, 32.0 and 44.8 mg/L, as well as four COD: 500, 1000, 1200 and 1400 mg/L. Considering the results, COD removal is greater than 80% when the valve 2 is in the anaerobic section outlet regardless of the concentration of phosphate. In this case, the best result is for inlet COD of 500, where the reactor can eliminate more than 90%. When the COD concentration reaches 1000 to 1400 ppm, the reactor’s COD removal efficiency declines to 60%.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48557718","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}
Pub Date : 2023-02-16DOI: 10.7494/geom.2023.17.3.107
M. Pepe, D. Costantino, V. Alfio
The aim of the paper is to identify a methodology capable of assessing shoreline changes through a geomatic approach based on the use of GIS (Geographic Information System) software. The paper describes a case study that reports the evolution of a coastline over a period of more than 100 years using medium and large-scale metric maps available in different periods. In fact, the coastlines were obtained from the source maps of the Italian Cadastre (dated 1890), from numerical cartography available on the coastline and acquired in different period at scales 1:5000 and 1:2000 and, more recently, from the Google Earth Pro platform. To analyse the evolution of the coastline a new procedure has been performed which is based on the use of GIS software, in particular a plugin called DSAS that allows the evaluation of the changes in the coastline and also obtains a statistical analysis of its evolution. The results showed the ease and applicability of the method in determining the evolution of the coastline and the strong erosion of a stretch of coastline with important socio-economic consequences and repercussions was highlighted in the analysed case study.
{"title":"A GIS Procedure to Assess Shoreline Changes over Time Using Multi-temporal Maps: An Analysis of a Sandy Shoreline in Southern Italy over the Last 100 Years","authors":"M. Pepe, D. Costantino, V. Alfio","doi":"10.7494/geom.2023.17.3.107","DOIUrl":"https://doi.org/10.7494/geom.2023.17.3.107","url":null,"abstract":"The aim of the paper is to identify a methodology capable of assessing shoreline changes through a geomatic approach based on the use of GIS (Geographic Information System) software. The paper describes a case study that reports the evolution of a coastline over a period of more than 100 years using medium and large-scale metric maps available in different periods. In fact, the coastlines were obtained from the source maps of the Italian Cadastre (dated 1890), from numerical cartography available on the coastline and acquired in different period at scales 1:5000 and 1:2000 and, more recently, from the Google Earth Pro platform. To analyse the evolution of the coastline a new procedure has been performed which is based on the use of GIS software, in particular a plugin called DSAS that allows the evaluation of the changes in the coastline and also obtains a statistical analysis of its evolution. The results showed the ease and applicability of the method in determining the evolution of the coastline and the strong erosion of a stretch of coastline with important socio-economic consequences and repercussions was highlighted in the analysed case study.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43586723","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}
Pub Date : 2023-02-11DOI: 10.7494/geom.2023.17.3.61
S. Morsy, S. Ahmed
Land surface temperature (LST) estimation is a crucial topic for many applications related to climate, land cover, and hydrology. In this research, LST estimation and monitoring of the main part of Al-Anbar Governorate in Iraq is presented using Landsat imagery from five years (2005, 2010, 2015, 2016 and 2020). Images of the years 2005 and 2010 were captured by Landsat 5 (TM) and the others were captured by Landsat 8 (OLI/TIRS). The Single Channel Algorithm was applied to retrieve the LST from Landsat 5 and Landsat 8 images. Moreover, the land use/land cover (LULC) maps were developed for the five years using the maximum likelihood classifier. The difference in the LST and normalized difference vegetation index (NDVI) values over this period was observed due to the changes in LULC. Finally, a regression analysis was conducted to model the relationship between the LST and NDVI. The results showed that the highest LST of the study area was recorded in 2016 (min = 21.1°C, max = 53.2°C and mean = 40.8°C). This was attributed to the fact that many people were displaced and had left their agricultural fields. Therefore, thousands of hectares of land which had previously been green land became desertified. This conclusion was supported by comparing the agricultural land areas registered throughout the presented years. The polynomial regression analysis of LST and NDVI revealed a better coefficient of determination (R2) than the linear regression analysis with an average R2 of 0.423.
地表温度(LST)的估算是气候、土地覆盖和水文等领域的一个重要研究课题。本文利用2005年、2010年、2015年、2016年和2020年的陆地卫星影像，对伊拉克安巴尔省主要地区进行了地表温度估算和监测。2005年和2010年的图像由陆地卫星5号(TM)拍摄，其余的由陆地卫星8号(OLI/TIRS)拍摄。采用单通道算法从Landsat 5和Landsat 8影像中检索地表温度。此外，利用最大似然分类器开发了5年的土地利用/土地覆盖(LULC)地图。在此期间，地表温度和归一化植被指数(NDVI)值的变化是由LULC变化引起的。最后，对LST与NDVI之间的关系进行了回归分析。结果表明，2016年研究区地表温度最高(min = 21.1°C, max = 53.2°C, mean = 40.8°C)。这是由于许多人流离失所，离开了他们的农田。因此，成千上万公顷以前是绿地的土地变成了荒漠化。通过比较历年登记的农业用地面积，这一结论得到了支持。LST和NDVI的多项式回归分析的决定系数R2(平均R2为0.423)优于线性回归分析。
{"title":"Monitoring of Land Surface Temperature from Landsat Imagery: A Case Study of Al-Anbar Governorate in Iraq","authors":"S. Morsy, S. Ahmed","doi":"10.7494/geom.2023.17.3.61","DOIUrl":"https://doi.org/10.7494/geom.2023.17.3.61","url":null,"abstract":"Land surface temperature (LST) estimation is a crucial topic for many applications related to climate, land cover, and hydrology. In this research, LST estimation and monitoring of the main part of Al-Anbar Governorate in Iraq is presented using Landsat imagery from five years (2005, 2010, 2015, 2016 and 2020). Images of the years 2005 and 2010 were captured by Landsat 5 (TM) and the others were captured by Landsat 8 (OLI/TIRS). The Single Channel Algorithm was applied to retrieve the LST from Landsat 5 and Landsat 8 images. Moreover, the land use/land cover (LULC) maps were developed for the five years using the maximum likelihood classifier. The difference in the LST and normalized difference vegetation index (NDVI) values over this period was observed due to the changes in LULC. Finally, a regression analysis was conducted to model the relationship between the LST and NDVI. The results showed that the highest LST of the study area was recorded in 2016 (min = 21.1°C, max = 53.2°C and mean = 40.8°C). This was attributed to the fact that many people were displaced and had left their agricultural fields. Therefore, thousands of hectares of land which had previously been green land became desertified. This conclusion was supported by comparing the agricultural land areas registered throughout the presented years. The polynomial regression analysis of LST and NDVI revealed a better coefficient of determination (R2) than the linear regression analysis with an average R2 of 0.423.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48441117","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}
Pub Date : 2023-02-11DOI: 10.7494/geom.2023.17.3.83
M. Taher, T. Mourabit, I. Etebaai, Hinde Cherkaoui Dekkaki, Najat Amarjouf, Afaf Amine, Bourjila Abdelhak, Ali Errahmouni, Sadik Azzouzi
The present study aims to delineate the groundwater potential zones (GWPZ) in the Boudinar Basin using geospatial techniques and through an analytical hierarchal process (AHP) method. For multi criteria decision analysis, fifteen thematic layers were integrated into a geographic information system (GIS) environment. In this analysis, each thematic layer is calculated for normalized weights. Furthermore, the consistency index and consistency ratio were calculated to ensure that the result was significant and reliable. The GWPZ map has been categorized into three classes: poor (50.82%), moderate (49.06%), and good (<1.00%). To compare the result, we used four other scenarios of the GWPZ. Two of them are the most similar to our result. Finally, predictive groundwater production and management strategies that ensure long-term sustainability are highly needed.
{"title":"Identification of Groundwater Potential Zones (GWPZ) Using Geospatial Techniques and AHP Method: a Case Study of the Boudinar Basin, Rif Belt (Morocco)","authors":"M. Taher, T. Mourabit, I. Etebaai, Hinde Cherkaoui Dekkaki, Najat Amarjouf, Afaf Amine, Bourjila Abdelhak, Ali Errahmouni, Sadik Azzouzi","doi":"10.7494/geom.2023.17.3.83","DOIUrl":"https://doi.org/10.7494/geom.2023.17.3.83","url":null,"abstract":"The present study aims to delineate the groundwater potential zones (GWPZ) in the Boudinar Basin using geospatial techniques and through an analytical hierarchal process (AHP) method. For multi criteria decision analysis, fifteen thematic layers were integrated into a geographic information system (GIS) environment. In this analysis, each thematic layer is calculated for normalized weights. Furthermore, the consistency index and consistency ratio were calculated to ensure that the result was significant and reliable. The GWPZ map has been categorized into three classes: poor (50.82%), moderate (49.06%), and good (<1.00%). To compare the result, we used four other scenarios of the GWPZ. Two of them are the most similar to our result. Finally, predictive groundwater production and management strategies that ensure long-term sustainability are highly needed.","PeriodicalId":36672,"journal":{"name":"Geomatics and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49478034","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：