Remote Sensing
The acquisition of information about the Earth's surface using satellite or aircraft-based sensors without physical contact.
Detailed Definition
Remote sensing is the science of obtaining information about objects or areas from a distance, typically using sensors mounted on satellites, aircraft, or drones. It is fundamental to modern GIS and mineral exploration.
Types of remote sensing
Passive sensors: - Detect natural radiation (sunlight reflection) - Multispectral imagery - Hyperspectral imagery - Thermal infrared
Active sensors: - Emit their own energy and measure returns - Radar (SAR, InSAR) - LiDAR - Sonar (for bathymetry)
Applications in mining
Mineral exploration: - Alteration zone mapping - Structural interpretation - Lithological discrimination - Vegetation stress analysis
Mine operations: - Stockpile volume measurement - Pit advancement monitoring - Tailings facility monitoring - Water management
Environmental monitoring: - Baseline documentation - Disturbance tracking - Vegetation recovery - Subsidence detection
Land management: - Boundary verification - Access route planning - Infrastructure mapping - Change detection
Common platforms: - Landsat, Sentinel (satellites) - WorldView, Planet (commercial) - Drones/UAVs (site-specific) - Aircraft (specialized surveys)
Remote sensing provides critical data for mining exploration, operations, and environmental management.
Related Terms
Computer Vision
AI technology that enables computers to interpret and analyze visual information from images and videos.
Geospatial AI
The application of artificial intelligence and machine learning techniques specifically to geographic and spatial data analysis.
GIS
Geographic Information System - software and technology for capturing, storing, analyzing, and displaying geographically referenced data.