We will set up an OEBMS-1 (Optical Energy Balance Measurement System) at the NDSU campus during the weekend of May 14 and 15. The OEBMS-a consists of The OEBMS1 consists of one SLS20 scintillometer system with tripods to measure the sensible heat flux, one pyrradiometer (0.3 – 30 μm) and one pyranometer (0.3 – 3 μm) to measure the radiation flux balance and three soil heat flux sensors. The latent heat flux is calculated as residuum of the other components. Two ventilated thermometers Pt1000 and one pressure sensor provide the auxiliary data for an automatic derivation of the turbulent heat flux from the scintillation measurements. The Signal Processing Unit interfaces with all sensors and communicates with a PC via a RS232 link. The software outputs the turbulent fluxes of sensible and latent heat, the incoming solar and net radiation and the ground.
It was raining on may 14. Will work tomorrow.
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