The correct answer is Satellite imaging, GIS and GPS.

• Satellite imaging, GIS(Geographic Information Systems) and GPS(Global Positioning System) techniques are used for the study of land use pattern.
• Environmental management for natural hazards and disasters, global climate change, natural resources, biodiversity, land cover, and many other applications are assisted by GIS (Geographic Information Systems), GPS (global positioning system) and satellite remote sensing technology.
• In order to obtain a multi-layered result for several forms of research, Satellite Imaging Corporation (SIC) incorporates orthorectified satellite image mosaics to produce single, data-rich images for intelligent GIS mapping.
• A GIS mapping project is significantly enhanced by satellite imagery and serves as a source of knowledge and data to support research and classification for geospatial evaluation and modeling.
• GIS, GPS, and remote sensing technologies provide researchers with resources to help them understand, visualise, incorporate, and measure the research data available.
• In order to create geospatial databases in a GIS environment, land cover maps and databases can be created from satellite imagery or aerial photography and then processed and digitised (feature extraction).