Riverbank Filtration Site Suitability Selection Using Spatial Data Techniques: Case Study for Kota Lama Kiri, Kuala Kangsar

2015 ◽  
Vol 802 ◽  
pp. 557-562 ◽  
Author(s):  
Mohd Firdaus Abdul Razak ◽  
Md Azlin Md Said ◽  
Rais Yusoh
Keyword(s):  
Spatial Data ◽  
Surface Characterization ◽  
Kappa Statistic ◽  
Riverbank Filtration ◽  
Site Suitability ◽  
Water Supply Management ◽  
Suitable Site ◽  
Suitable Area ◽  
A Site

Site surface characterization is an important factor to identify a suitable area for riverbank filtration (RBF) location. However, selecting the suitable area for RBF location using conventional methods is costly and time consuming, usually restricted to a small area. In this research, a site suitability for RBF location methodology was proposed using spatial data techniques to determine the site suitability of the potential RBF location in Kota Lama Kiri, Kuala Kangsar study area. A high resolution GeoEye-1 satellite imagery acquired in 2012 was classified using the supervised classification process for land cover. The classified image was further analyze using overlaying, buffering and Boolean analysis, to identify the suitable site for RBF based on location, distance from the river and distant from built-up area. In addition, the geology and hydrological data were extracted from published maps, which were then converted and integrated into GIS spatial database. The results show that the classified GeoEye-1 image produces the overall accuracies of 83.50% % with kappa statistic value of 0.806. The site suitability map for the potential RBF locations in the study area were produced confirms the location of an existing RBF well developed by Lembaga Air Perak (LAP). The methodology can be readily used to provide information of suitability area for RBF location in which can be used by water supply management to locate the RBF well for extraction purposes.

THE DEVELOPMENT OF A SITE SUITABILITY MAP FOR RBF LOCATION USING REMOTE SENSING AND GIS TECHNIQUES

2015 ◽  
Vol 74 (11) ◽  
Author(s):  
Mohd Firdaus Abdul Razak ◽  
Md Azlin Md Said ◽  
Rais Yusoh
Keyword(s):  
Remote Sensing ◽  
Satellite Image ◽  
Kappa Statistic ◽  
Site Suitability ◽  
River Bank ◽  
Gis Techniques ◽  
Suitability Map ◽  
Hydrogeological Map ◽  
A Site

Remote sensing and Geographic Information System (GIS) techniques was used in this study to develop the site suitability map for river bank filtration (RBF) locations based on a case study in Jenderam Hilir, Dengkil. A high resolution 2012 GeoEye-1 satellite image was classified into six classes using the supervised maximum likelihood classification process. The classified image was further analyzed using GIS techniques such as overlaying, buffering and Boolean analysis, to identify the suitability of a RBF location area based on location, distance from the river and distant from built up area. Geology and hydrogeological map were extracted from published maps, which are then converted and integrated into the GIS spatial database. The classified GeoEye-1 results show that the overall accuracy is 89% with  kappa statistic of 0.864. The developed site suitability map for RBF locations also in good agreement  with the existing borehole location of the study area.

Site Suitability Analysis for Water Conservation Using AHP and GIS Techniques: A Case Study of Upper Sina River Catchment, Ahmednagar (India)

2020 ◽  
Vol 3 (2) ◽  
pp. 49-59 ◽  
Author(s):  
Yogesh Badhe ◽  
Ravindra Medhe ◽  
Tushar Shelar
Keyword(s):  
Water Conservation ◽  
Soil Depth ◽  
Land Use Land Cover ◽  
Suitability Analysis ◽  
Site Suitability ◽  
Gis Techniques ◽  
Multi Criteria Evaluation ◽  
Conservation Activity ◽  
Suitable Site

The site suitability for construction of water conservation structures is an important step towards groundwater conservation in arid and semi-arid regions. Water is the most crucial for maintaining an environment and ecosystem which is helpful to sustaining all forms of the life. The increasing water scarcity day to day has been one of the common problems over a period of time. On top of it, when the area is a part of rain shadow zone like Ahmednagar district, water conservation activities are become more important. The present study aims to identify the suitable zones for water conservation activity. Multi- criteria evaluation is carried out using Geographic Information System (GIS) techniques to help the choice makers in defining suitable site for construction of water conservation structures. Different layers which were considered for multi-criteria evaluation: slope, land use land cover, soil texture, lithology, soil depth, soil erosion, wells, lineaments and drainage network. Analytical Hierarchy Processes (AHP) is used for weighted sum to find suitable sites for implementation of water conservation activity using selected criterions. The site suitability map was classified into four classes: highly suitable, moderately suitable, less suitable and not suitable with area of 19.19%, 26%, 49.03% and 5.78, respectively. This map will help for selection of suitable sites for construction of Mati Nala Bund (MNB), Check Dam, Cement Nala Bund (CNB) and Continuous Contour Trenches (CCT) for conservation of groundwater resource in the region.

CONTEXTUALIZING PALIMPSEST OF COLLECTIVE MEMORY IN AN URBAN HERITAGE SITE: Case Study of Chahar Bagh, Shiraz - Iran

2015 ◽  
Vol 9 (1) ◽  
pp. 218 ◽  
Author(s):  
Leila Mahmoudi Farahani ◽  
Marzieh Setayesh ◽  
Leila Shokrollahi
Keyword(s):  
Collective Memory ◽  
Active Part ◽  
Collective Memories ◽  
Cultural Life ◽  
Urban Heritage ◽  
Heritage Site ◽  
Historical Sites ◽  
A Site ◽  
Historical Centre

A landscape or site, which has been inhabited for long, consists of layers of history. This history is sometimes reserved in forms of small physical remnants, monuments, memorials, names or collective memories of destruction and reconstruction. In this sense, a site/landscape can be presumed as what Derrida refers to as a “palimpsest”. A palimpsest whose character is identified in a duality between the existing layers of meaning accumulated through time, and the act of erasing them to make room for the new to appear. In this study, the spatial collective memory of the Chahar Bagh site which is located in the historical centre of Shiraz will be investigated as a contextualized palimpsest, with various projects adjacent one another; each conceptualized and constructed within various historical settings; while the site as a heritage is still an active part of the city’s cultural life. Through analysing the different layers of meaning corresponding to these adjacent projects, a number of principals for reading the complexities of similar historical sites can be driven.

Application of PCA with georeferenced data in the tourism industry: A case study in the province of Córdoba, Argentina

2021 ◽  
pp. 135481662098768
Author(s):  
Laura I Luna
Keyword(s):  
Decision Making ◽  
Principal Components ◽  
Spatial Data ◽  
Local Development ◽  
Value Added ◽  
Tourism Industry ◽  
Methodological Innovation ◽  
Spatial Principal Components ◽  
Components Analysis

The spatial analysis of tourism industries provides information about their structure, which is necessary for decision-making. In this work, tourism industries in the departments of Córdoba province, Argentina, for the 2001–2014 period were mapped. Multivariate methods with and without spatial restrictions (spatial principal components (sPCs) analysis, MULTISPATI-PCA, and principal components analysis (PCA), respectively) were applied and their performance was compared. MULTISPATI-PCA yielded a higher degree of spatial structuring of the components that summarize tourism activities than PCA. The methodological innovation lies in the generation of statistics for multidimensional spatial data. The departments were classified according to the participation of tourism activities in the value added of tourism using the sPCs obtained as input of the cluster fuzzy k-means analysis. This information provides elements necessary for appropriately defining local development strategies and, therefore, is useful to improve decision-making.

scholarly journals Geotechnical Approach to Early-Stage Site Characterisation of Shallow Wave Energy Sites

2021 ◽  
Vol 9 (6) ◽  
pp. 605
Author(s):  
Craig Heatherington ◽  
Alistair Grinham ◽  
Irene Penesis ◽  
Scott Hunter ◽  
Remo Cossu
Keyword(s):  
Wave Energy ◽  
Early Stage ◽  
Breaking Waves ◽  
Time Frame ◽  
High Energy ◽  
Specific Information ◽  
Terrain Analysis ◽  
Site Suitability ◽  
Site Characterisation ◽  
A Site

Marine renewable energy is still in its infancy and poses serious challenges due to the harsh marine conditions encountered for wave or tidal installations and the survivability of devices. Geophysical and hydrodynamic initial site surveys need to be able to provide repeatable, reliable, and economical solutions. An oscillating water column wave energy converter is to be installed on the west coast of King Island, Tasmania. The location is in a high-energy nearshore environment to take advantage of sustained shoaling non-breaking waves of the Southern Ocean and required site-specific information for the deployment. We provide insight into scalable geophysical site surveys capable of capturing large amounts of data within a short time frame. This data was incorporated into a site suitability model, utilising seabed slope, sediment depth, and water depth to provide the terrain analysis needed to match deployment-specific characteristics. In addition, short-term hydrology and geotechnical work found a highly energetic seabed (near seafloor water velocities <1 m/s) with sufficient bearing capacity (6 MPa). In a highly energetic environment, care was taken to collect the relevant data needed for an assessment of critical information to an emerging technology companies primary project. This is in addition to the malleable methodology for a site suitability model that can incorporate various weighted parameters to prioritise the location for shallow wave energy sites in general.

scholarly journals Constructing Damage Indices Based on Publicly Available Spatial Data: Exemplified by Earthquakes and Volcanic Eruptions in Indonesia

2021 ◽  
Author(s):  
Emmanuel Skoufias ◽  
Eric Strobl ◽  
Thomas Tveit
Keyword(s):  
Spatial Data ◽  
Volcanic Ash ◽  
Satellite Images ◽  
Fragility Curves ◽  
Volcanic Eruptions ◽  
Damage Indices ◽  
Damage Indicator ◽  
Time Period ◽  
Peak Ground Motion

AbstractThis article demonstrates the construction of earthquake and volcano damage indices using publicly available remote sensing sources and data on the physical characteristics of events. For earthquakes we use peak ground motion maps in conjunction with building type fragility curves to construct a local damage indicator. For volcanoes we employ volcanic ash data as a proxy for local damages. Both indices are then spatially aggregated by taking local economic exposure into account by assessing nightlight intensity derived from satellite images. We demonstrate the use of these indices with a case study of Indonesia, a country frequently exposed to earthquakes and volcanic eruptions. The results show that the indices capture the areas with the highest damage, and we provide overviews of the modeled aggregated damage for all provinces and districts in Indonesia for the time period 2004 to 2014. The indices were constructed using a combination of software programs—ArcGIS/Python, Matlab, and Stata. We also outline what potential freeware alternatives exist. Finally, for each index we highlight the assumptions and limitations that a potential practitioner needs to be aware of.

An Example to Us All: Child Development and Identity Construction in Early 20th-Century Playgrounds

10.1068/a3237 ◽  
2000 ◽  
Vol 32 (4) ◽  
pp. 599-616 ◽  
Author(s):  
Elizabeth A Gagen
Keyword(s):  
Child Development ◽  
Public Space ◽  
20Th Century ◽  
The United States ◽  
Development Theory ◽  
Gender Identities ◽  
Construction Of Identity ◽  
A Site ◽  
Us Cities

At the turn of the 20th century, children's play came under new and heightened scrutiny by urban reformers. As conditions in US cities threatened traditional notions of order, reformers sought new ways to direct urban-social development. In this paper I explore playground reform as an institutional response that aimed to produce and promote ideal gender identities in children. Supervised summer playgrounds were established across the United States as a means of drawing children off the street and into a corrective environment. Drawing from literature published by the Playground Association of America and a case study of playground management in Cambridge, MA, I explore playground training as a means of constructing gender identities in and through public space. Playground reformers asserted, drawing from child development theory, that the child's body was a conduit through which ‘inner’ identity surfaced. The child's body became a site through which gender identities could be both monitored and produced, compelling reformers to locate playgrounds in public, visible settings. Reformers' conviction that exposing girls to public vision threatened their development motivated a series of spatial restrictions. Whereas boys were unambiguously displayed to public audiences, girls' playgrounds were organised to accommodate this fear. Playground reformers' shrewd spatial tactics exemplify the ways in which institutional authorities conceive of and deploy space toward the construction of identity.

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