Radiative Transfer Flashcards
Radiance
the total amount of it that reaches the satellite is a combo of the surface contribution and the atmosphere contribution.
atmosphere can contribute anywhere from 0%-100% of the radiance, while surface contributes the rest. (signals must add to 100%)
Weighting Function
reveals how the picky atmosphere affects the amount of radiance that reaches the satellite sensor.
if weighting function is appropriate, we can interpret where the detected radiance is coming from
Beer’s Law
describes how energy is transmitted to the satellite from the surface and/or from atmospheric layers.
When all contributions of Beers Law are added, we get the total radiance detected by satellite
radiative transfer equation
The equation that adds all the contributions together T - temperature p - pressure λ - wavelength Rλ - radiance ελ - emissivity Bλ - blackbody radiance from plank function τλ - transmissivity/transmittance
Surface contribution/atmospheric contribution
SEE SHEET