Overlay Analysis
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Recent papers in Overlay Analysis
Overlay Analysis penting untuk dilakukan, mengingat pengolahan data dengan informasi terkandung yang berbeda dapat dilakukan dari membuat, memproses hingga menghasilkan peta sesuai keinginan dengan tujuan untuk memperoleh dan... more
Overlay Analysis penting untuk dilakukan, mengingat pengolahan data dengan informasi terkandung yang berbeda dapat dilakukan dari membuat, memproses hingga menghasilkan peta sesuai keinginan dengan tujuan untuk memperoleh dan memperlihatkan informasi daerah / wilayah kesesuaian antara dua data atau lebih dalam suatu area penelitian. Disamping itu, dalam analisis overlay juga terdapat metode-metode seperti Vector ataupun Raster, serta ada juga konsep-konsep geoprocessing yang dapat dipilih seperti Clip, Intersect, dan Union yang dapat disesuaikan dengan tujuan dan keinginan perolehan data.
Natural resources are the wealth of any region and its proper utilisation is utmost concern for future management and developmental activities. Considering the present day problems of watershed, an attempt has been made to prepare... more
Natural resources are the wealth of any region and its proper utilisation is utmost concern for
future management and developmental activities. Considering the present day problems of
watershed, an attempt has been made to prepare implementable land resource development
plan for the catchment of Upper Tunga Project (UTP) in Karnataka. The study area lies
between longitude 75o 25’ 24.386” E -75o 36’ 49. 296”E, and latitude 13o 51’ 16 . 145”N- 13o
44’19.085” N with an aerial extent of 1041.89 Sq Km. The thematic maps like LU/LC,
Geomorphology, Slope and Lineaments were prepared using SOI Toposheets D43P5, D43P6,
D43P7, D43P9 and D43P10 and updated using IRS P6 LISS III (23.5 m) data of year
2009(Path/Row: 98/64). The drainage morphometric parameters were extracted by ASTER
DEM (30m) using ArcHydro tools with in ArcGIS environment. From the analysis, out of 23
sub watersheds, Bailubadige, Heddur, Kakanahosudi, Muthinakoppa are high prone to
erosion and Bailubadige, Hedduru, Kakanahosudi, Muttinakoppa, Sarigere are medium prone
to erosion. Quantitative hypsometric analysis, shows concave shape of the curve, which
represents the old stage of the catchment with Hypsometric Integral 0.50, indicates the
significant fluvial and slope wash processes of landforms. Thus from the study, we realised
optimal and sustainable development of resource is required to avoid any future problems. In
this regard, site suitable soil conservation practice like Boulder check, Rubble check,
Vegetative check, Contour bunds, Agro forestry, Afforestation, Social forestry, Silvipasture
and Contour farming has been recommended according to Integrated Mission for Sustainable
Development (IMSD) guidelines by using Remote Sensing and GIS techniques.
future management and developmental activities. Considering the present day problems of
watershed, an attempt has been made to prepare implementable land resource development
plan for the catchment of Upper Tunga Project (UTP) in Karnataka. The study area lies
between longitude 75o 25’ 24.386” E -75o 36’ 49. 296”E, and latitude 13o 51’ 16 . 145”N- 13o
44’19.085” N with an aerial extent of 1041.89 Sq Km. The thematic maps like LU/LC,
Geomorphology, Slope and Lineaments were prepared using SOI Toposheets D43P5, D43P6,
D43P7, D43P9 and D43P10 and updated using IRS P6 LISS III (23.5 m) data of year
2009(Path/Row: 98/64). The drainage morphometric parameters were extracted by ASTER
DEM (30m) using ArcHydro tools with in ArcGIS environment. From the analysis, out of 23
sub watersheds, Bailubadige, Heddur, Kakanahosudi, Muthinakoppa are high prone to
erosion and Bailubadige, Hedduru, Kakanahosudi, Muttinakoppa, Sarigere are medium prone
to erosion. Quantitative hypsometric analysis, shows concave shape of the curve, which
represents the old stage of the catchment with Hypsometric Integral 0.50, indicates the
significant fluvial and slope wash processes of landforms. Thus from the study, we realised
optimal and sustainable development of resource is required to avoid any future problems. In
this regard, site suitable soil conservation practice like Boulder check, Rubble check,
Vegetative check, Contour bunds, Agro forestry, Afforestation, Social forestry, Silvipasture
and Contour farming has been recommended according to Integrated Mission for Sustainable
Development (IMSD) guidelines by using Remote Sensing and GIS techniques.
The present study highlights the importance of digital elevation model and satellite imageries for mapping the coastal geomorphological landforms in Tuticorin-Vembar coastal stretch, southeast coast of India. Aster DEM 30 meter resolution... more
The present study highlights the importance of digital elevation model and satellite imageries for mapping the coastal geomorphological landforms in Tuticorin-Vembar coastal stretch, southeast coast of India. Aster DEM 30 meter resolution data and Landsat 2006 image (30 meter resolution) of the study area were overlayed together with 30 and 70 percent transparency ratio respectively in ArcGIS platform. Further, a hillshade layer derived from Aster DEM has been included to visualize the surface morphology of the study area. Visual interpretation technique was used for identifying the various coastal geomorphological landforms in the study area. The results were cross validated
through a GPS based field check. Based on the analysis, we have found that the study area has a wide variety of geomorphological landforms such as beach ridges, alluvial plains, deltaic plains, channel deposits, sand dunes, linear ridges, mud flats, plain lands, salt marsh, sand sheets, sand bars, beaches and backwater channels. The dominant landform features like the beach ridges and alluvial plains are found near to Vembar and Vaippar river systems. Saltpans are other dominant features, which have been evolved from scrapping the mud flats and salt marsh lands by
human induced activities. The concept used in this paper provides a cost effective and time saving technique for mapping the coastal geomorphological landforms at a resolution of 30 meters. However, micro scale mapping at 1-meter resolution using LIDAR datasets needs to be explored in future.
through a GPS based field check. Based on the analysis, we have found that the study area has a wide variety of geomorphological landforms such as beach ridges, alluvial plains, deltaic plains, channel deposits, sand dunes, linear ridges, mud flats, plain lands, salt marsh, sand sheets, sand bars, beaches and backwater channels. The dominant landform features like the beach ridges and alluvial plains are found near to Vembar and Vaippar river systems. Saltpans are other dominant features, which have been evolved from scrapping the mud flats and salt marsh lands by
human induced activities. The concept used in this paper provides a cost effective and time saving technique for mapping the coastal geomorphological landforms at a resolution of 30 meters. However, micro scale mapping at 1-meter resolution using LIDAR datasets needs to be explored in future.
Integrated and sustainable urban solid waste management is one of the most important environmental problems in Europe and worldwide. According to modern legislations and newly promoted practices and trends in Europe as well as... more
Integrated and sustainable urban solid waste management is one of the most important environmental problems in Europe and worldwide. According to modern legislations and newly promoted practices and trends in Europe as well as internationally, a complex way of urban solid waste management tends to prevail. This management method combines the Processing Unit and the Sanitary Landfill for the Residues of the process. A variety of parameters and restrictions apply when planning the siting of Residue Sanitary Landfills (RSL). The urban solid waste management problem and specifically the matter of RSL siting is constantly becoming more and more important in developed and developing countries due to pressures coming from population and urbanization growth, continuously increasing living needs and many other factors. Technology evolution and especially Geoinformatics tools, such as Geographic Information Systems (GIS) and Remote Sensing (RS), constitute rather effective ways to approach and research issues like the problem of urban solid waste management and mainly the optimal delimitation of RSL.
The aim of this paper is to locate suitable – optimal areas that can be used for placing RSL in the island of Tinos, based on legislation, environmental, economic and social criteria. The methodology followed in this research effort is developed via Geographic Information Systems (GIS) by creating a spatial database which contains all the above-mentioned criteria. This research procedure includes an important number of different method trials. The result of this process indicate several places for placing RSL in Tinos Island.
The aim of this paper is to locate suitable – optimal areas that can be used for placing RSL in the island of Tinos, based on legislation, environmental, economic and social criteria. The methodology followed in this research effort is developed via Geographic Information Systems (GIS) by creating a spatial database which contains all the above-mentioned criteria. This research procedure includes an important number of different method trials. The result of this process indicate several places for placing RSL in Tinos Island.