Arrange the following sequential stages of a satellite remote sensing and GIS land-use mapping workflow in the correct order from initial energy capture to final spatial analysis.
- 1Detection and digital recording of reflected electromagnetic radiation by the satellite sensor
- 2Application of radiometric and geometric corrections to eliminate atmospheric and orbital distortions
- 3Supervised spectral classification to categorize land surface pixels into distinct land-use cover classes
- 4Conversion of classified raster data into vector layers for overlay and spatial query in a GIS
Cevap
The correct sequence is: (1) Detection and digital recording of reflected electromagnetic radiation by the satellite sensor, (2) Application of radiometric and geometric corrections to eliminate atmospheric and orbital distortions, (3) Supervised spectral classification to categorize land surface pixels into distinct land-use cover classes, and (4) Conversion of classified raster data into vector layers for overlay and spatial query in a GIS.
The workflow follows a standard sequence from physical signal capture to analytical integration: electromagnetic radiation is first recorded by satellite sensors, pre-processed to remove radiometric and atmospheric distortions, classified spectrally into thematic land-use categories, and finally converted into vector layers within a GIS database for spatial decision-making.
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Anahtar Kavram
Remote Sensing Data Processing and GIS Integration Workflow