Sensible and Latent Heat Fluxes
Can measure over water
All-in-one weather station
LAS connects to MWSC-160
MWSC logs measurement data
Optical & Microwave Scintillometer System
The Kipp & Zonen LAS MkII or X-LAS MkII near-infrared optical scintillometers can be easily combined with the RPG MWSC-160 microwave scintillometer to provide direct measurements of both sensible heat flux and latent heat flux (evapotranspiration) averaged over a large area, including over predominantly open water. The MWSC-160 transmitter projects a beam of 160.8 GHz radiation over path lengths from 500 m to 10 km to a receiver with an aperture of 300 mm, which matches well with the X-LAS MkII over the longer path lengths.
The LAS MkII transmitter and receiver can each be mounted on a RPG double base plate with the MWSC transmitter and receiver. The X-LAS MkII is too large to fit on the RPG double base plate, so it requires a separate tripod or support to locate it alongside the MWSC. The system operates from 12 VDC.
The LAS/X-LAS transmitter takes power from the MWSC transmitter. The LAS/X-LAS receiver takes power from the MWSC receiver and provides the analog optical signal to it. An all-in-one weather station is mounted on the MWSC receiver to provide the real-time environmental information required for latent heat flux calculations, and there is a GPS receiver for time and location. The MWSC receiver software synchronously digitizes the optical and microwave signals. The receiver can calculate the structure parameters