- "Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation."
The use of technology to gather data about the environment.
Basic concepts in Remote Sensing: Understanding the principles and fundamentals of remote sensing and its uses in topography.
Electromagnetic radiation and its interaction with the Earth's surface: Basics concerning the physical properties of electromagnetic radiation and how they interact with the Earth's surface to create images.
Sensors and platforms: An overview of sensors and platforms used to capture remote sensing data; different types of electromagnetic radiation and sensors.
Topographic mapping and digital elevation models (DEMs): Uses of remote sensing data for topographic mapping and the creation of digital elevation models (DEMs).
Image processing and analysis: Methods for processing and analyzing remote sensing imagery to enhance information and create useful maps.
Data acquisition and interpretation: Techniques for acquiring and interpreting remote sensing data from multi-spectral sensors and platforms.
Geographic Information Systems (GIS): Integration of remote sensing data with GIS to create maps that are useful for planning and decision-making.
Applications in topography: Examples of how remote sensing is used for topographic analysis, including geologic mapping, soil mapping, land use mapping, hydrology and environmental monitoring.
Remote sensing and climate change: The role of remote sensing in monitoring changes in climate and the environment.
Remote sensing and disaster management: Utilization of remote sensing technology for disaster management at various levels.
Future of remote sensing and technology advancements: The future direction and technological advancements in remote sensing in the context of topography.
LiDAR (Light Detection and Ranging): A remote sensing technology that uses laser pulses to measure distances and generate precise digital elevation models of the Earth's surface.
Photogrammetry: A technique that uses aerial photographs to measure and create 3D models of terrain features.
Radar (Radio Detection and Ranging): A technology that uses radio waves to create images of the Earth's surface and map terrain features.
Sonar (Sound Navigation and Ranging): A technology that uses sound waves to "see" and map underwater terrain.
Multispectral Imaging: A technique that captures images of the Earth's surface in several wavelengths of light, allowing for the identification and analysis of various surface features.
Hyperspectral Imaging: A technique that captures images of the Earth's surface in hundreds of narrow, contiguous spectral bands, allowing for high-resolution surface analysis.
Thermal Imaging: A technique that captures images of the Earth's surface by detecting the infrared radiation emitted by the Earth's surface, allowing for the identification and analysis of temperature differences.
InSAR (Interferometric Synthetic Aperture Radar): A technique that uses radar to measure changes in the Earth's surface, including deformation caused by earthquakes, volcanic activity, and subsidence due to groundwater pumping.
Topographic Maps: Maps that represent the Earth's surface as a series of contour lines, showing the elevation and shape of terrain features.
Satellite Imagery: Images captured by orbiting satellites that show the Earth's surface at a variety of resolutions and spectral bands, allowing for the identification and analysis of various surface features.
- "Remote sensing is used in numerous fields, including geophysics, geography, land surveying, and most Earth science disciplines."
- "Exploration geophysics, hydrology, ecology, meteorology, oceanography, glaciology, geology"
- "It also has military, intelligence, commercial, economic, planning, and humanitarian applications, among others."
- "The term remote sensing generally refers to the use of satellite- or aircraft-based sensor technologies to detect and classify objects on Earth."
- "It includes the surface and the atmosphere and oceans, based on propagated signals."
- "Active remote sensing is when a signal is emitted by a satellite or aircraft to the object and its reflection detected by the sensor." - "Passive remote sensing is when the reflection of sunlight is detected by the sensor."
- "The term is applied especially to acquiring information about Earth and other planets."
- "It includes the surface and the atmosphere and oceans, based on propagated signals (e.g. electromagnetic radiation)."
- "It may be split into 'active' remote sensing and 'passive' remote sensing."
- "Active remote sensing is when a signal is emitted by a satellite or aircraft to the object and its reflection detected by the sensor." - "Passive remote sensing is when the reflection of sunlight is detected by the sensor."
- "The term remote sensing generally refers to the use of satellite- or aircraft-based sensor technologies to detect and classify objects on Earth."
- "It includes the surface and the atmosphere and oceans, based on propagated signals (e.g. electromagnetic radiation)."
- "Exploration geophysics, hydrology, ecology, meteorology, oceanography, glaciology, geology"
- "It also has military, intelligence, commercial, economic, planning, and humanitarian applications, among others."
- "Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation."
- "The term is applied especially to acquiring information about Earth and other planets."
- "Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object."
- "Remote sensing is used in numerous fields, including geophysics, geography, land surveying and most Earth science disciplines."
- "Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation."