- What could be concluded from a zero reading of an IR-detector?
- That there is positive DLR?
- That there is positive DLR precisely balanced by Upwelling Longwave Radiation?
- Or can nothing positive be concluded from a zero reading?
tisdag 18 oktober 2011
Evidence that DLR is Fiction?
The evidence of Downwelling Longwave Radiation put forward by CO2 alarmists is that an IR-detector of some sort when pointed to the sky gives a reading which is not zero, and the non-zero reading is used as evidence that something has been recorded, which is then interpreted as DLR or backradiation from the cold sky to the warmer surface of the Earth.
The evidence of DLR is thus a non-zero reading of an IR-detector.
Suppose now, to turn the argument around, that the reading of the IR-detector is zero. That would be the case if the IR-detector works by detecting a temperature difference and if the temperature difference happens to be zero. This would be the case if the temperature of the Earth is equal to the temperature of the sky. The IR-detector working on a principle of
temperature difference, like a thermocouple, would then record zero, as if nothing was recorded.
The following questions present themselves: