The Sensible Heat Flux in the Course of the Year at Ny-Ålesund, Svalbard: Characteristics of Eddy Covariance Data and Corresponding Model Results
Table 2
Main range of the kinematic sensible heat flux (eddy covariance, K m s−1) in the course of the year depending on season, wind direction and friction velocity.
Normal (dir 20°–150°)
Synchronisation (dir 270°–20°)
Disturbed (dir 150°–270°)
Additional remarks
≤ 0.23 m s−1
> 0.23 m s−1
≤ 0.23 m s−1
> 0.23 m s−1
≤ 0.23 m s−1
> 0.23 m s−1
Summer (16.6.–31.8.)
−0.025–0.15 K m s−1
−0.05–0.15 K m s−1
−0.025–0.12 K m s−1
−0.025–0.12 K m s−1
−0.025–0.05 K m s−1
−0.025–0.08 K m s−1
Good agreement between eddy and () HMA; damped and/or changed values in the disturbed sector by cold air influence; oasis effect in sector “normal” possible
Outside summer (1.9.–15.6.)
−0.06–0.03 K m s−1
−0.08–0.03 K m s−1
−0.03–0.03 K m s−1
−0.04–0.03 K m s−1
−0.06–0.1 K m s−1
−0.04–0.02 K m s−1
Bad agreement between eddy and HMA (HMA limited in the positive range); fictitious positive fluxes due to gravity waves in the disturbed sector at low friction velocities; synchronisation sector more maritime, normal sector more continental
