Types and methods of remote sensing
Types and methods of remote sensing
introduction:
Remote sensing is the science and art of collecting information about objects without the need for direct contact. It is used in many fields including agriculture, geology, hydrology, environment, meteorology, security, and natural resource exploration.
Different remote sensing:
Depending on the power source:
Passive remote sensing: Based on the measurement of energy reflected or generated by objects in nature.
Active remote sensing: This is based on transmitting energy (such as radar waves) from the sensor to the object being measured, and then measuring the energy reflected or emitted by the object
For the type of load carrying platform:
Telescopic aircraft: Use airplanes, balloons, or drones.
Remote sensing of objects in space: Using satellites.
Ground remote sensing: Ground sensors are used.
Remote sensing techniques: Aerial Space Photography
To capture aircraft or satellite images with special cameras.
Images are used in applications such as mapping, natural resource exploration, and environmental change monitoring.
Radar: 1 .
transmitting radar waves from objects and measuring the reflected energy.
Radar is used in applications such as weather control, navigation of ships and aircraft, and land surveillance.
Infrared remote sensing:
Measurement of the heat energy of materials.
Infrared remote sensing is used in applications such as monitoring forest fires, monitoring biodiversity and monitoring changes in Earth’s surface temperature
Microwave telescopes:
Transmission of microwave waves and measurement of reflected energy.
Microwave remote sensing is used in applications such as soil moisture monitoring, vegetation monitoring, and surface monitoring.
Satellite remote sensing: The use of satellites to carry remote sensors to collect geographic data
Satellites are used in applications such as weather monitoring, natural disaster monitoring and environmental change monitoring.
Using remote sensing:
Agriculture: Crop health monitoring, agricultural production estimates, and water management.
Geology: Exploration of natural resources, management of geological hazards, and geology.
Hydrology: Monitoring water resources, hydrological cycle studies, and flood control.
Environment: Environmental change management, pollution control, and forest fire management.
Climate: Climate change monitoring, study of weather events, and weather forecasting.
Security: Border patrol, illegal goods control, and counterterrorism.
Remote Sensors: Remote data collection: Enables data collection from inaccessible sources.
Large-scale data collection: Enables large-scale data collection.
Periodic Data Collection: Enables periodic data collection to monitor changes.
Drawbacks on remote sensing:
High cost: The cost of remote sensors can be high.
Complex Data: Collected data can be complex and need specialized processing.
Effect of weather: It can have an effect Satellite remote sensing: A revolution in data collection
Satellite remote sensing is a revolutionary technology for collecting information about the Earth from space. The technology is used in many fields, including agriculture, geology, hydrology, environment, meteorology, security, and natural resource exploration.
Remote advantages of satellite detection:
Remote data collection: Enables data to be collected from harsh environments such as marine environments or deserts.
Large scale data collection: Enables data to be collected over large areas such as entire continents.
Periodic data collection: Enables periodic data collection to monitor changes such as vegetation change or soil surface temperature
High resolution: Some satellites provide high-resolution images that allow you to see details on the ground.
Disadvantages of satellite remote sensing: Increased cost: Satellite systems, launches and operations can be very expensive.
Complex Data: Collected data can be complex and need specialized processing.
Weather Effects: Weather conditions such as clouds and fog can affect the accuracy of the data collected.
Satellites used in remote sensing:
Geographic satellites: Used to collect visual images of the Earth.
Radar satellite: Used to collect surface data, regardless of weather conditions.
Infrared satellites: Used to collect Earth surface temperature data.
Multispectral satellites: These are used to collect data on surface characteristics such as the type of vegetation or the amount of moisture in the soil
Satellite remote sensing: Agriculture: Crop health monitoring, agricultural production estimates, and water management.
Geology: Exploration of natural resources, management of geological hazards, and geology.
Hydrology: Monitoring water resources, hydrological cycle studies, and flood control.
Environment: Environmental change management, pollution control, and forest fire management.
Climate: Climate change monitoring, study of weather events, and weather forecasting.
Security: Border patrol, illegal goods control, and counterterrorism.
Examples of applications of satellite remote sensing:
Natural Disaster Monitoring: Satellite remote sensing has been used to monitor natural disasters such as hurricanes, earthquakes and volcanoes.
Environmental Change Monitoring: Satellite remote sensing has been used to monitor environmental changes such as deforestation and climate change.
Natural resource management: Satellite remote sensing has been used to monitor natural resources such as forests, water, oil and gas.
Urban Planning: Satellite remote sensing has been used for urban planning and building siting.
The future of satellite remote sensing: The satellite remote sensing industry is growing rapidly, thanks to the rise of new technologies such as artificial intelligence and machine learning These techniques can analyze collected data accurately and efficiently. In the future, satellite remote sensing is expected to be used in new applications
