Comparison of EBBR and ECOR flux measurements at SGP E39

 
Poster PDF

Authors

Ryan Sullivan — Argonne National Laboratory
David R. Cook — Argonne National Laboratory

Category

Boundary layer structure, including land-atmosphere interactions and turbulence

Description

ECOR and EBBR flux systems were established at SGP EF39 in late 2015 to allow comparisons of the two flux measurement techniques for wheat and grassland. It appeared that the EBBR Automatic Exchange Mechanism (AEM) was not located high enough to measure only fluxes from the wheat field to the south and so was raised from 0.8m (for the lowest level) to 1.17m on 2 August, 2016. Afterwards, the narrow grass strip between the EBBR and the wheat field was not cut and thus affected the flux measurements. On 6 November, 2017 the AEM was raised even higher, to 1.5m. Comparisons of the fluxes from the two systems are presented, showing the effects of the change of height of the EBBR AEM.