scholarly journals Assessing the Ecological Condition of the Environment and Solving the Problems of Ecological Safety Using Mathematical Ecology Methods and Geoinformation System Programs

2021 ◽  
pp. 137-144
Author(s):  
Vera Abzianidze ◽  
◽  
Dimitri Abzianidze ◽  
Zurab Kakulia ◽  
◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Heavy Metals ◽  
Information System ◽  
Geographic Information System ◽  
Low Cost ◽  
Geographic Information ◽  
Ecological Condition ◽  
Complex Model ◽  
Information Organization ◽  
Modeling Tools

With the intensive development of industry and population growth, environmental protection and the correct use of natural resources are of great importance. For a proper assessment, monitoring and management of the environmental situation, it is necessary to possess cartographic, environmental and other information about all its components, analyze this information and make the right decisions. There are various ways to solve this problem. The article provides a brief description of the method that we applied to assess the ecological state in one of the sections of the Mtkvari (Kura), in particular, the content of heavy metals in the waters of the Mtkvari (Kura) River in the Zagesi – Red Bridge section. The degree of anthropogenic impact was assessed by methods of mathematical modeling and modern technologies of the geographic information system. In the mathematical processing of information, a whole range of mathematical modeling tools were used - starting with mathematical statistics and ending with a complex model. The main functions of the geographic information system were also used: information organization, its processing, analysis, verification, visualization, and etc. As a result, thematic maps were created, that clearly show the degree of pollution of the river section, as well as the dynamics of changes in the concentration of heavy metals. This method can be used for environmental assessment of various objects. With its help, it is possible to carry out environmental monitoring simply and at low cost.

Integrasi Sistem Maklumat Geografi Dan Kaedah Penilaian Pelbagai Kriteria Dalam Pemilihan Tapak Perumahan Kos Rendah: Kajian Kes Di Seberang Perai Utara, Pulau Pinang, Malaysia

2012 ◽  
Author(s):  
Narimah Samat ◽  
Swee Li Ong
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Low Cost ◽  
Geographic Information ◽  
Rapid Urbanization ◽  
Policy Makers ◽  
Multicriteria Evaluation ◽  
Evaluation Approach ◽  
Low Cost Housing ◽  
Housing Site

Pembandaran yang pesat kesan langsung daripada perkembangan sektor perindustrian dan pembinaan di Malaysia telah meningkatkan permintaan terhadap tempat kediaman. Namun permintaan tersebut sering dihadkan oleh kekurangan sumber semula jadi terutamanya tanah. Kekurangan tanah yang boleh dimajukan untuk perumahan terutamanya perumahan kos rendah telah membentuk satu cabaran kepada jururancang dan pembuat dasar di negara ini. Namun pada masa kini, kajian yang terperinci tentang penentuan kesesuaian tapak perumahan masih kurang dijalankan di negara ini. Artikel ini memapar potensi aplikasi perintegrasian GIS (Geographic Information Systems) dan MCE (Multicriteria Evaluation) dalam pemilihan tapak perumahan kos rendah di Seberang Perai Utara, Pulau Pinang, Malaysia. Analisis ini dijalankan melalui pemilihan lapan faktor dan satu halangan dengan mengambil kira pandangan pakar dan kecenderungan seseorang dalam proses membuat keputusan. Analisis ini berpontensi digunakan untuk menyelesaikan masalah pemilihan tapak perumahan kos rendah yang melibatkan pelbagai faktor ruangan dan halangan. Kata kunci: Perumahan kos rendah; sistem maklumat geografi; kaedah penilaian pelbagai kriteria Rapid urbanization resulted from the growth in the industrial and construction sectors in Malaysia has increased the demand towards residential place. These demands, however, are constantly limited due to the scarcity of natural resources especially in land. The shortage in potentially developed land for urban development especially for low–cost housing has become a challenge to planners and policy makers in this country. Nevertheless, in–depth rescarches on the suitability of site for residential development are still less being conducted in this country today. This article demonstrates the potential of integrating GIS (Geographic Information System) and MCE (Multicriteria Evaluation) in selecting suitable sites for low–cost housing in the Seberang Perai Utara, Penang State, Malaysia. This analysis was carried out based on eight factors and one constraint while taking into consideration the evaluation by experts and individuals in decision making process. This analysis has the potential to be used in solving low–cost housing site selection problem involving spatial factors and its constraints. Key words: Low–cost housing; geographic information system; multicriteria evaluation approach

scholarly journals ON DELETION IN DELAUNAY TRIANGULATIONS

2002 ◽  
Vol 12 (03) ◽  
pp. 193-205 ◽  
Author(s):  
OLIVIER DEVILLERS
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Low Cost ◽  
Geographic Information ◽  
Delaunay Triangulations

This paper presents how the space of spheres and shelling may be used to delete a point from a d-dimensional triangulation efficiently. In dimension two, if k is the degree of the deleted vertex, the complexity is O(k log k), but we notice that this number only applies to low cost operations, while time consuming computations are only done a linear number of times. This algorithm may be viewed as a variation of Heller's algorithm,1,2 which is popular in the geographic information system community. Unfortunately, Heller algorithm is false, as explained in this paper.

scholarly journals Three-Dimensional Reconstruction of Huizhou Landscape Combined with Multimedia Technology and Geographic Information System

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Zhenhong Zhou ◽  
Zhu Qingshan ◽  
Liu Dongyi ◽  
Tang Weihong
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
High Efficiency ◽  
Landscape Planning ◽  
Low Cost ◽  
Three Dimensional ◽  
Geographic Information ◽  
Multimedia Technology ◽  
Terrain Analysis ◽  
Ecological Protection

Huizhou architecture is the most important Chinese ancient architecture. Being a traditional architecture, Huizhou architecture has always maintained a unique artistic style of elegance, simplicity, richness, and integration. Huizhou landscape is an essential embodiment of Huizhou culture. The landscape and pattern of Huizhou villages are the external manifestations of Huizhou culture symbols. This architecture needs to be preserved using multimedia technology and geographic information system. This paper uses these systems to extract the landscape image and develop three-dimensional Huizhou village’s modeling methods with automation, high efficiency, and low cost. It has realized the functions of landscape information query, high-dimensional measurement, terrain analysis, visibility analysis, and virtual roaming of Huipai village. This modeling has specific promotion effects on landscape spatial analysis, landscape planning, ecological protection, natural and cultural inheritance, and tourism development.

PEMANFAATAN WEBGIS DALAM MENDUKUNG PROGRAM DESA BERSAUDARA DI KABUPATEN MAGELANG

2018 ◽  
Vol 2 ◽  
pp. 223
Author(s):  
Humam Zarodi
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Geographic Information

<p>Erupsi Gunungapi Merapi tahun 2010 mengakibatkan banyak korban jiwa, kerusakan aset dan kerugian di berbagai bidang. Untuk meminimalkan korban jiwa, kerusakan dan kerugian, diperlukan upaya pengurangan risiko bencana (PRB). Salah satu upaya yang dilakukan adalah program desa bersaudara (<em>sister village</em>) yang digagas oleh Pemerintah Kabupaten Magelang melalui Badan Penanggulangan Bencana Daerah (BPBD). Program desa bersaudara ini bertujuan agar ada kepastian tempat pengungsian, mengurangi kesemrawutan proses pengungsian serta memudahkan pelayanan pengungsi. Program ini dapat memanfaatan Sistem Informasi Geografis/<em>Geographic Information System</em> (GIS) yang berbasis web (<em>WebGIS</em>). <em>WebGIS</em> mampu mendiseminasikan peta yang dihasilkan dalam program desa bersaudara, misalnya peta jalur evakuasi. Makalah ini bertujuan untuk mendiskripsikan pemanfataan <em>WebGIS</em> dalam mendukung program desa bersaudara, dengan mengambil kasus di Desa Ngargomulyo (desa rawan bencana) dan Desa Tamanagung (desa penyangga/ penerima pengungsi). Metodenya adalah memaparkan proses pemetaan jalur evakuasi. Proses penyusunan peta tersebut terbagi empat tahap:   survei lapangan, penyiapan data spasial, coding dan publikasi. Hasilnya adalah tampilan peta jalur evakuasi yang bisa diakses oleh siapapun tanpa menggunakan aplikasi GIS yang memudahkan masyarakat pengungsi, penerima pengungsi, pemerintah maupun parapihak, mengetahui asal pengungsi, jalur evakuasi dan titik pengungsian. Penelitian ini menyimpulkan bahwa pemetaan <em>WebGIS</em> dapat mendukung upaya PRB dengan keunggulan bisa dijangkau pengguna secara sangat luas.<strong></strong></p><p><strong>Kata kunci</strong>: desa bersaudara, <em>sister village</em>, pemetaan jalur evakuasi, <em>gis</em>, <em>webgis</em></p>

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