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). The process of change
detection using satellite imagery was employed by utilizing image differencing
method (Maus et al. 1992, Doak and Lackey 1993, Green et al. 1994).
Satellite imagery that could be used for land use changes varies from one study to
another. Earlier studies have adopted not only passive sensors like Landsat, SPOT,
MODIS, IRS, and NOAA but also Synthetic Aperture Radar imagery. The
advantages of multispectral remote sensing to investigate land use changes are
availability of reflected radiation from visible and infrared range of the solar
spectrum. An additional benefit from satellite images is that these offer the most
current information compared to statistics, topographic maps or land use maps.
Also, they facilitate retrieval of the information that we need to prepare the record
of land use changes in spatial and temporal dimension. This means that the land use
categories and information does not necessarily have to comply with any specific
nomenclature. Furthermore, satellite images cover large regions and give locations
(e.g. where is which land use?). The problems sometimes arise from cloud cover that
periodically obscures the surface underneath. The geometric resolution is also
limited, but suitable for many practical needs
Satellite Remote Sensing data, which are a useful source of information andprovides timely and complete coverage of any specific area, have proven useful inassessing the natural resources and monitoring the land use or land cover changes(Rantanasermpong et al. 1995, Satyanarayana et al. 2001). The process of changedetection using satellite imagery was employed by utilizing image differencingmethod (Maus et al. 1992, Doak and Lackey 1993, Green et al. 1994).Satellite imagery that could be used for land use changes varies from one study toanother. Earlier studies have adopted not only passive sensors like Landsat, SPOT,MODIS, IRS, and NOAA but also Synthetic Aperture Radar imagery. Theadvantages of multispectral remote sensing to investigate land use changes areavailability of reflected radiation from visible and infrared range of the solarspectrum. An additional benefit from satellite images is that these offer the mostcurrent information compared to statistics, topographic maps or land use maps.Also, they facilitate retrieval of the information that we need to prepare the recordof land use changes in spatial and temporal dimension. This means that the land usecategories and information does not necessarily have to comply with any specificnomenclature. Furthermore, satellite images cover large regions and give locations(e.g. where is which land use?). The problems sometimes arise from cloud cover thatเป็นระยะ ๆ obscures พื้น ยังเป็นการแก้ปัญหาทางเรขาคณิตจำกัด แต่เหมาะสำหรับการปฏิบัติมาก
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