The open-path eddy-covariance program, which is sold as a common accessory for the IRGASON® and EC150, produces raw data in a time-series table and estimated fluxes in a 30 minute flux table. Estimated fluxes have undergone the Webb, Pearman, and Leuning (WPL) correction for density effects. Sonic temperature has also been corrected for humidity effects and then used to estimate sensible heat flux. Although data should undergo further corrections during post-processing, these estimated fluxes are useful in the field because they give immediate feedback as to whether the sensors are working properly and giving reasonable results.
Campbell Scientific highly recommends post-processing of raw time-series data with all appropriate corrections before the publication of results.