A pyrgeometer measures Irradiance, potential energy flux from the emitter to a sink at absolute zero.
Not exact matches
The incident infrared radiation was
measures by a
pyrgeometer mounted on the ship, and the emission from the sea surface was calculated from the Stefan - Boltzmann equation using the skin temperature measurements of the M - AERI.
«An absolute cavity
pyrgeometer to
measure the absolute outdoor longwave irradiance with traceability to international system of units, SI.»
To you and me, it's the temperature.This is why
pyrgeometer manufacturers specify you need two, back to back, to
measure net energy flux, the only real energy flow at that point: http://www.kippzonen.com/?product/16132/CGR+3.aspx (bottom of page).
They think the
pyrgeometer variant
measures real energy flux when it can't.
They make up the difference by assuming 333 W / m ^ 2 LW RF
measured by «
pyrgeometers» pointing to the atmosphere («back radiation») provides extra surface heat when standard physics shows for a normal temperature gradient, an atmospheric RF can't transfer any energy to the surface.
You can easily disprove this because the manufacturers, competent physicists, warn that you need two
pyrgeometers, back to back, to
measure net IR energy flux.
The same is by direct measurements of the solar irradiance on groung by radiometers, pyrometers and
pyrgeometers adjusted to
measure the solar irradiance EXCLUSIVELY.
On the other hand, we have here
pyrgeometers, radiometers and pyrometers
measuring the amount of solar power received on ground.