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The risk assessment approach is useful for monitoring and supervisory control because it provides distribution operator with the capability to quantify the tradeoff between reliability and economic performance. The risk assessment determines the likelihood of something going wrong in a distribution network through the failure probability metric. To deal with the massive variety of information required...
Passability maps are one of the basic elements used in military terrain assessment. The article describes an automating of their development. It performs all the stages of cartographic modelling, from data preparation to visualisation of the resulting passability maps in the form of a geoportal. A Vector Map Level 2 (VMap L2) was used as source data. In the described system, passability was relative...
The scale operation in various forms of rural land circulation in China is the way for the development of modern agriculture, and is also the basic direction of agricultural reform. The right to rural land contractual management registration makes the position of cadastral land and its interrelated information, as contractor and area, clear by Geographic Information Systems (GIS). That supplied a...
Much of the water and sediment fluxes in semi‐arid catchments are found to be highly concentrated in localized pathways. Identifying the location of these pathways in the landscape is important for management and restoration. Measures can then be targeted so as to minimize the potential for erosion and sediment flux along these pathways. A method of repeat field mapping of flow and sediment pathways...
Weather-related impacts are at the top of all outage causes. Yet, traditional outage management (OM) approaches do not integrate all available and relevant weather-associated data automatically. This paper presents a predictive method that correlates different weather-associated data layers to provide predictive OM process implemented using the geographic information systems (GIS) framework. Examples...
The impact of continuous land use change on the slope areas in Phuket, Thailand was investigated in the present study. Landslide disasters may occur due to heavy rain storms in the area affected by global climate changes, causing an enormous impact on the tourism industry, especially life and property. Three time periods were focused on using remote sensing data, including 2001, 2006, and 2011. The...
3D urban geographic information system (GIS) is of great importance in urban planning, management and decision support. However, the system development is difficult from the infrastructure perspective or expensive based on the professional GIS platform. Therefore, this paper puts forward the development method of 3D urban GIS with the Unity3D game platform. The thought and technical framework are...
Trees located in the vicinity public areas such as roadsides, recreation areas, and around building should be monitored regularly for structural weakness. Certain conditions can cause a tree to be structurally weakened so that parts or all of it are likely to collapse Landscape trees do not only contribute to the enhancement of scenery but might also become potential hazards risks if, there is no...
Urban parks provide numerous social, environmental, and economic services of measurable value to a city. To better understand the importance of the urban parks, by using Quickbird satellite image (QB) also adopting Geographic Information System (GIS), we employ the methods of Image Interpretation, Site Survey, Photosynthetic Experiment and Forestation Costs Method, assessment the quantities and monetary...
Prediction of Leishmaniasis risk based on socio-environmental factors and its possible spatial relationships is investigated in a Leishmaniasis endemic area of Isfahan, Iran. The Geographical Information System (GIS) is used to link the spatial and significant socio-environmental indicators with the disease data. Using fuzzy AHP weighting method five classes of risk categories ranging from “very low”...
Using DEM (digital elevation model) data of 1:250,000 and temperature data of 68 weather stations in Fujian Province, based on the geography and cLimate equation that formed of longitude, latitude, altitude and annual extreme minimum temperature, the annual extreme minimum temperature was fine simulated by the factor of distance to the coastLine. Then the simulated results were amended by the topographic...
As a particular agricultural and vernacular landscape. Terrace land has been generated by long-time experiences accumulating in farming. It is a sustainable land use model, which is satisfy human living and survival needs. Based on the case study of Baiyangdian region, the research illustrate the structure, functions, values of the Terrace Land system evaluated by Ecological Services and the great...
This paper takes the non-irrigated plain areas in Xinjiang as the study area, where the natural vegetation draws water mainly from the shallow groundwater to satisfy its demands. Through interpretation of TM satellite images and hydro-geological investigations, understanding of the unsaturated strata, shallow water depth, distribution and coverage of natural vegetation was obtained. Based on calculation...
GIS-based mapping and decision support system has been efficiently and widely used in many different fields and domains. In practice, however, the application in forestry is still relatively limited, especially the large-scale mapping and specialized software development, which has witnessed a growing market from various customers. Supported by National High Technology Research and Development Program...
According to the climate data of Fujian Province, by using of mathematical statistics to establish geographical projection model between the minimum temperature and longitude, latitude, altitude (including litchi and longan that happened once in 20 years of minimum temperature, the reference of once in 10 years, banana happened once in 5 years of minimum temperature), the chilling (freezing) injury...
The vegetation map, with a complex landform of DAHUABEI region in Wula mountain was produced based on the field vegetation investigation, and image interpretation, using the ALOS data and a Digital Elevation Model (DEM). The spatial distribution of the main vegetation types and their relations with topographical factors were statistically analyzed under the support of GIS, combining the vegetation...
For estimation of single tree parameters using 1:6000 large-scale aerial photographs, tree species identification is an important starting point. This paper presents a new approach for identifying tree species, delineating individual trees and extracting single tree space coordinates in coniferous and deciduous forests of Liangshui National Nature Reserve of P. koraiensis, Northeast of China. To identify...
Application high resolution remote sensing image, based on multiscale segmentation and object-oriented image analysis method, and vegetation index was computed, green land was extracted. In order to distinguish different types of vegetation, applying texture character classification algorithm of grey co-occurrence matrix, trees and grasses were extracted respectively. By accurate evaluation, classification...
Grape is one of the demanded fruits in Malaysia. Grape is also well known as one of the expensive and exclusive fruits, because it hardly to be grown in tropical climate. Today, there are certain types of grapes that can be planted in Malaysia and it had been proved by the Perlis Department of Agriculture. Thus, there are also some of Malaysian citizen that bravely plants the grapes such as in Sendayan...
A sustainable management for the mangroves has not only provided consistent yield of renewable forest wood products such as timbers that are utilized for firewood, poles for foundation, construction materials, fishing gear and even tannin extraction, but also fishery resources and conductive environment for practice of non-destructive aquaculture activities. Mangrove play an important role in providing...
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