REMOTE SENSING EXAM 1: STUDY GUIDE

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REMOTE SENSING EXAM 1: STUDY GUIDE Electromagnetic Spectrum Everything with heat (>0 K) with heat (>0 K) emits Electromagnetic Radiation (EMR) EMR is a combination of electrical and magnetic waves Waveform Sinusoidal Speed of light c (c=3X108 m/sec) c= (lambda)v v= frequency (# waves per unit time) ( )= wavelength Regions of the Electromagetic Spectrum (EMS) Radiation Laws Isaac Newton, Max Plank, Albert Einstein studied (EMR). Plank found that EMR emitted and absorbed as found that EMR emitted and absorbed as discrete bundles of energy called photons or quanta . The size of each unit is proportional to frequency And is a measure of the energy at that frequency Everything > 0 K emits energy Energy is subsequently re-emitted emitted at longer wavelength at longer wavelength Q (radiant energy, J) = h * v h = constant v = frequency (waves per sec.)

REMOTE SENSING EXAM 1: STUDY GUIDE Electromagnetic Spectrum Everything with heat (>0 K) with heat (>0 K) emits Electromagnetic Radiation (EMR)

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