Objectives:
The worksheet "The electromagnetic spectrum" teaches the students the particularities of the electromagnetic spectrum. This worksheet introduces the area of remote sensing and conveys the basics in subject.
Didactical comment:
The students have to complete the worksheet by filling in the missing technical terms of the electromagnetic spectrum in the figure and have to fill in a table with the missing words which are given in the question.
Solution of worksheet 'The electromagnetic spectrum':
Use the following words to describe the different spectral areas of the electromagnetic spectrum and to complete the accompanying table:
Near-IR - Detection of surface temperatures, soil moisture - Visible - Microwave - Reflected solar radiation -
Mid-IR - Very high - Marginal - Ultraviolet - Detection of vegetation and soil moisture, geological applications, ocean currents -
Visible Light - Marginal - Oil films on water, ozone concentration - Few - Microwave - Thermal IR -
Emitted thermal radiation- Near-IR - Reflected solar radiation - Detection of vegetation, water bodies and soils for land cover and land use mapping -
Ultraviolet - Thermal IR - Emitted & reflected radiation - Mid-IR.
| Ultraviolet | Visible | Near-IR | Mid-IR | Thermal-IR | Microwave | |
| Measured: | Reflected solar radiation | Reflected solar radiation | Reflected solar radiation | Emitted thermal radiation | Emitted thermal radiation | Emitted & reflected radiation |
| Atmospheric influence: | Very high | In the blue & green range | Few | Marginal | Marginal | Marginal |
| Applications: | Oil films on water, ozone concentration | Detection of vegetation, water bodies and soils for land cover and land use mapping | Mapping of biomass and vitality/ damage of vegetation | Detection of vegetation and soil moisture, geological applications, ocean currents | Detection of surface temperatures, soil moisture | Radar detection, meteorological applications, land shifting |
