Application of the Flux-Variance Technique for Evapotranspiration Estimates in Three Types of Agricultural Structures

Table 1

Instruments, their heights, and normalized heights in the 3 campaigns.

Measurement	Instrument	Model and manufacturer	Campaign
			S1; (m) ()	S2a (b); (m) ()	S3; (m) ()
3D wind components, sonic temperature	3D sonic anemometer	CSAT3 Campbell Scientific	4.5 (0.48)	5 (3) (1.62)	2.5 (0.58)
H2O concentration	IRGA	LI-7500 LI-COR	4.5 (0.48)	5 (3) (1.62)	2.5 (0.58)
Net radiation	Net radiometer	Q7.1 REBS	4.9 (0.69)	5 (3) (1.24)	2.3 (0.54)
Soil heat flux	Thermopile	HF-3.1 REBS	−0.08 (NA)	−0.08 (NA)	−0.08 (NA)
Soil temperature	Thermocouple	T type, 24 gauge	−0.02 and −0.06 (NA)	−0.02 and −0.06 (NA)	−0.02 and −0.06 (NA)