scholarly journals Overview about GIS multi-criteria spatial analysis for micro hydropower plant site suitability in South Ogan Komering Ulu District, South Sumatera, Indonesia

2021 ◽  
Vol 10 (2) ◽  
pp. 1024-1034
Author(s):  
Wawan Hendriawan Nur ◽  
Yuliana Yuliana ◽  
Yuliana Susilowati ◽  
Yugo Kumoro ◽  
Yunarto Yunarto

Morphology in South OKU District is the potential of a micro hydropower plant (MHPP) as an alternative power source. This potential has not been fully utilized, although many un-electrified villages are in several remote areas. Identification planning for MHPP is one of the most critical planning tasks and requires excellent multi-criteria spatial analysis. GIS and multi-criteria analysis have played an essential role in analyzing suitable locations for MHPP development. GIS and multi-criteria spatial analysis consist of detailed investigations of ongoing sites and suitability for specific planning. This research aims to overview GIS multi-criteria spatial analysis for MHPP site suitability based on electricity South OKU demands. The most critical data and criteria to decide the best site suitability are un-electrified villages, rivers, land use, slope, landslide vulnerability, and elevation. All of the data were generated into the raster data format. Quantitative modeling used AHP as a multi-criteria analysis method, and a weighted score is determined by considering the comparison of each criterion. Finally, the criterion layer was calculated by open-source QGIS to create a site suitability map. The field study verified the resulting map, and there is a match between the preferred locations and the field survey. The research results preferred Sungai Are, Sindang Danau, and Kisam Tinggi Sub-district as the best suitability for MHPP development.

2021 ◽  
Vol 9 (6) ◽  
pp. 605
Author(s):  
Craig Heatherington ◽  
Alistair Grinham ◽  
Irene Penesis ◽  
Scott Hunter ◽  
Remo Cossu

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.


2018 ◽  
Vol 3 (1) ◽  
pp. 61-93 ◽  
Author(s):  
Afsana Akther ◽  
Tofael Ahamed ◽  
Ryozo Noguchi ◽  
Takuma Genkawa ◽  
Tomohiro Takigawa

2016 ◽  
Author(s):  
José Saldaña ◽  
◽  
Diego Martínez ◽  
Félix Fernández ◽  
Raúl Emilio Amarilla ◽  
...  

2020 ◽  
Vol 11 (4) ◽  
pp. 42-63
Author(s):  
Karen Kesler ◽  
Rick Bunch

The purpose of this research was to relate the influence of specific site suitability variables to eastern monarch butterfly migratory patterns and behavior. Elevation, temperature, precipitation, and land use data layers were overlaid to collectively consider how these variables affected the way that butterflies migrated and recolonized during the 2016/2017 migratory cycle. The variables were reclassified into layers ranking suitability as either unsuitable, suitable, or optimal with respective scores of one, three, and five. Three uninhabitable variables were identified that deemed a site unsuitable despite the influence and possible optimal suitability of the other variables. The results of this study indicated that site suitability was a large driving factor for migratory monarchs with a heavier emphasis placed on average temperature and land/cropland use. Possible displaced and sink populations were identified for further study, while the effects of agriculture, development, and climate change were considered regarding flyway connectivity and behavior.


1980 ◽  
Vol 45 (1) ◽  
pp. 55-59 ◽  
Author(s):  
Kenneth J. Berry ◽  
Kenneth L. Kvamme ◽  
Paul W. Mielke

A permutation test for assessing intrasite patterning of artifact distributions in archaeological space is presented. This test requires none of the usual assumptions about the data; permits either exact locational or counts/grid data in one-, two-, or three-dimensional space; and provides an exact method for testing any hypothesis concerning the nonrandom allocation of artifacts into classes within a site.


2016 ◽  
Vol 7 (3) ◽  
pp. 38-70 ◽  
Author(s):  
John Walter Nowlin ◽  
Rick L. Bunch

The North Carolina wine industry is growing at a fast pace. Many new vineyards are being planted with European varieties. Vitis vinifera varieties in general are the most challenging species of grape grown, requiring considerable effort to consistently produce yields of appropriate volume and good quality. The model produced in this research was designed to help guide site selection for V. vinifera vineyards in the North Carolina Piedmont. This is accomplished using a site suitability model and predictive geophysical parameters. The area of interest is Rockingham County, North Carolina. The model consists of four sets of factors each weighted and combined into sub-model composites. These sub-model composites represent the capability/suitability of: topography, soil, land use/land cover, and climate. The four sub-model composites were weighted and combined to produce the final output that summarizes the viticultural site suitability for the study area.


2015 ◽  
Vol 802 ◽  
pp. 557-562 ◽  
Author(s):  
Mohd Firdaus Abdul Razak ◽  
Md Azlin Md Said ◽  
Rais Yusoh

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.


2018 ◽  
Vol 26 (6) ◽  
pp. 1066-1074 ◽  
Author(s):  
Ronald Thom ◽  
Jeffrey Gaeckle ◽  
Kate Buenau ◽  
Amy Borde ◽  
John Vavrinec ◽  
...  

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