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Remote Sensing Satellite

Remote Sensing(RS) technology is a based on satellites system. This technology began with the early use of Aerial Photography, then it’s shifted satellite system.

Remote sensing satellites are also called Earth observation satellites. They’re used for environmental monitoring (atmosphere, ocean, and land), meteorology, and cartography.

The first occurrence of remote sensing satellites on October 4, 1957, with the launch of the first artificial satellite, Sputnik 1. NASA launched the first American satellite, Explorer 1, on January 31, 1958.

How Remote Sensing Satellite work?

The Remote sensing by satellite will capture electromagnetic radiation on the microwave, ultraviolet, infrared, and visible wavelengths radiated, scattered, or reflected from the Earth.

There are two types of sensors working in RS System

  1. Active Sensors
  2. Passive Sensors

Remote Sensing Satellite System

Characteristics of representative satellites:

SatellitesSpatial resolution (meters)Revisit time (days)Spectral range (μm)
number of bands
Number of bands

Primary Applications of representative satellites:

LandsatGlobal-change research, agriculture, cartography, geology, forestry, regional planning, surveillance, education
ASTERVegetation and ecosystem dynamics, land surface temperature, geology, hazard monitoring, land-cover change, land surface climatology, hydrology
SPOTExploring the Earth’s resources, detecting and forecasting phenomena involving climatology and oceanography, and monitoring human activities and natural phenomena
IKONOSUrban geography, land-use, agriculture, and natural-disaster management
QuickbirdMap publishing, land and asset management, and risk assessment
IRSApplications in forestry, agriculture, environment, soil characteristics, wasteland identification, flood and drought monitoring, ocean resource development, mineral exploration, land use and monitoring of underground and surface water resources.
WorldViewMapping clouds, ice, snow and correcting for aerosol and water vapor
Sentinel-2Land and maritime monitoring, emergency management, and surveillance

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