Remote Sensing

Start with the central idea

The Remote Sensing mind map is a useful starting point. It describes remote sensing as obtaining information about an object, area or phenomenon using a device that is not in contact with it. The map also mentions aircraft and weather balloons. Read the definition first, then use the examples to think about how measurements can be made from a distance.

For another view, the Earth Observation mind map lists parts of the Earth system, including the atmosphere, hydrosphere and lithosphere. It gives you a way to explore the range of terms associated with Earth observation.

Use questions to explore the detail

After looking at the maps, try Fundamentals of remote sensing. Its questions ask what would normally count as remote sensing and consider measurements made without direct contact. Return to the Remote Sensing map as you work through the questions and compare the wording with the definition there.

The Remote sensing lecture one quiz focuses on interpreting measurements of electromagnetic energy reflected or emitted by a target. Remote Sensing Flashcards offer questions on electromagnetic radiation, photons and definitions of remote sensing. Use the cards alongside the quiz when you want to spend more time on those terms.

Work through imagery and classification

Introduction to Earth Observation Science includes flashcards on image processing, choosing imagery and regions of the electromagnetic spectrum. Another deck asks about supervised classification, including its stages and training site selection. A separate deck covers hyperspectral images and reflectance.

Remote Sensing is one section of the Structural Geology, Mapping and Geophysics unit in Geology and earth sciences. The resources on this page let you focus on its definitions, imagery and classification terms within that unit. Choose a deck to study after exploring the maps and quizzes.