Surveying and Geomatics | 5. Remote Sensing by Abraham | Learn Smarter
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5. Remote Sensing

The unit covers the fundamental aspects of remote sensing, including the principles, applications, advantages, and disadvantages of the technology. It emphasizes the interaction of the electromagnetic spectrum (EMS) with the atmosphere and its implications for satellite imagery quality. The unit highlights the significance of sensors' characteristics, the necessity of geometric and radiometric corrections, and the importance of accuracy assessments in thematic mapping.

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Sections

  • 5

    Remote Sensing

    This section explores remote sensing systems, their components, advantages and applications, and the significance of data collection and analysis in various fields.

    Learning Practice

  • 5.1

    Introduction

    Remote sensing is the collection and analysis of data about objects or areas from a distance, primarily using sensors and electromagnetic radiation.

    Learning Practice

  • 5.2

    Advantages And Disadvantages Of Remote Sensing

    Remote sensing offers numerous advantages like extensive data collection and all-weather monitoring, but it also presents challenges such as the need for specialized skills and expensive high-resolution data.

    Learning Practice

  • 5.3

    Applications Of Remote Sensing

    Remote sensing technology has diverse applications across various fields, including mapping, agriculture, environmental monitoring, and urban planning.

    Learning Practice

  • 5.4

    Components Of A Passive Remote Sensing System

    This section outlines the key components of a passive remote sensing system, emphasizing the role of illumination, atmosphere, emitted or reflected signals, sensors, and data processing.

    Learning Practice

  • 5.5

    Technical Terms

    This section introduces key technical terms relevant to remote sensing, elucidating their meanings and significance in the context of the electromagnetic spectrum and its interaction with various mediums.

    Learning Practice

  • 5.6

    Electromagnetic Spectrum (Ems)

    The Electromagnetic Spectrum (EMS) encompasses a range of electromagnetic radiation types, characterized by their wavelengths and frequencies, and plays a vital role in remote sensing applications.

    Learning Practice

  • 5.7

    Black Body Radiations

    This section discusses black body radiation, its properties, and the laws governing it, including Planck’s Law, Wien’s Displacement Law, and the Stefan–Boltzmann Law.

    Learning Practice

  • 5.8

    Interaction Of Emr With Atmosphere

    This section discusses the interactions of electromagnetic radiation (EMR) with the atmosphere and the significance of scattering, absorption, transmission, and reflection.

    Learning Practice

  • 5.8.1

    Types Of Interactions

    The section explores the four primary types of interactions between electromagnetic radiation and objects, which influence remote sensing data.

    Learning Practice

References

5a.pdf

Class Notes

Memorization

What we have learnt

  • Remote sensing is the scien...
  • Different parts of the elec...
  • The effectiveness of remote...

Final Test

Revision Tests