Disadvantages Of Remote Sensing Technology

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Remote sensing technologies can help for mapping and monitoring of land use and land cover changes in various scales to evaluate the impacts of these changes. However, in this case we can use the capacity of remote sensing to analyze and evaluate of land use and land cover changes in large areas at economical costs (Parece and Campbell, 2015). Remote sensing and Geographic information systems (GIS) are well-established information technologies have performed in land and natural resources management is now widely recognized. Although they are still essentially separate technologies and practitioners still generally consider themselves primarily involved with one or the other (Zhou, 1995). Current of these technologies provide a cost-effective…show more content…
The advantages of remote sensing techniques including the ability to cover large areas with high spatial detail and high temporal frequency, the robustness of satellite image classification, improvements in the spatial and spectral characteristics, and the acquisition of valuable multi-temporal datasets comprising different kinds of optical data, while GIS is powerful in mapping and analyzing the emerging patterns (Anderson, 1976; Singh, 1989; Lambin and Geist, 2008). Satellite remote sensing data, which are a useful source of information and provides timely and complete coverage of any specific area, have proven useful in assessing the natural resources and monitoring the land use or land cover changes (Rantanasermpong et al. 1995, Satyanarayana et al 2001). Remote sensing and Geographical Information system (GIS) provide fundamental tools which can be useful in the investigation of the village district as well as the city levels (Rimal, 2011). Moreover, remote sensing provides an efficient way to depict land cover as it produces a map-like representation of the Earth’s surface that is spatially continuous and highly consistent, as well as available at a range of spatial and temporal scales (Anderson, 2005), which remote sensing is an excellent tool for mapping, monitoring and modeling of environmental variables and processes. The widespread availability and reduced cost of remotely sensed imagery and geographic information system allow efficient mapping and detection of superficial changes of the natural resources on a greater scale. This is of particular value in developing countries where many areas are inaccessible (Alvarez, 1983; Baldyga et al., 2004), and

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