| Answer | Crossword Clue |
|---|---|
| exitance | a measure of radiation from a surface |
| exitances | EXITANCE, a measure of radiation from a surface |
| reflectance | The measure of the proportion of light or other radiation striking a surface that is reflected off it |
| reflectances | The measure of the proportion of light or other radiation striking a surface that is reflected off it |
| pyrgeometer | an instrument for measuring the loss of heat by radiation from the earth's surface |
| pyrgeometers | PYRGEOMETER, an instrument for measuring the loss of heat by radiation from the earth's surface |
