Radiation emissivity of common materials like water, ice, snow, grass and more.
The emissivity coefficient - ε - indicates the radiation of heat from a body according the Stefan-Boltzmann Law, compared with the radiation of heat from a ideal black body where the emissivity coefficient ε = 1.
Emissivity coefficients - ε - for some common materials:
- ε -
|Water (0 - 100oC)||0.95 - 0.963|
|Ice||0.96 - 0.99|
|Snow||0.96 - 0.98|
|Green Grass||0.975 - 0.986|