A Scintillometer measures atmospheric turbulence. The technique is based on the scintillation phenomenon in which heat ﬂuxes cause variations in the refractive index of the atmosphere. This causes the ‘shimmering’ effect seen over a hot road.
Scintillometers detect these variations using a beam of light which is emitted by the transmitter and detected by the receiver. From the scintillation measurements the sensible and latent heat ﬂuxes and evapo-transpiration can be derived.
The LAS MkII Large Aperture Scintillometer provides continuous measurements over path lengths from 100 m up to 4.5 km. It is the only scintillometer currently available with a built-in display and control-pad. It has internal digital processing to make calculations in-situ and to store data and results. Measurements are on a comparable scale to the pixel size of satellite instruments, making LAS MkII ideal for ground-truthing applications.
The LAS MkII Evapo-Transpiration (ET) System delivers surface heat fluxes and evapo- transpiration data from a complete, easy to use, package that is individually configured to suit the specific customer requirements.
Easy to use and with real-time data directly from the display. The LAS MkII measures atmospheric turbulence and can derive sensible heat fluxes over distances from 100 m to 4.5 km.
LAS MkII ET System
A complete Evapo-Transpiration Monitoring System based on the LAS MkII. The system provides field observations of path average energy fluxes using the scintillometry technique.