Articles | Volume 14, issue 3
Atmos. Meas. Tech., 14, 2409–2427, 2021
https://doi.org/10.5194/amt-14-2409-2021
Atmos. Meas. Tech., 14, 2409–2427, 2021
https://doi.org/10.5194/amt-14-2409-2021

Research article 26 Mar 2021

Research article | 26 Mar 2021

Suitability of fibre-optic distributed temperature sensing for revealing mixing processes and higher-order moments at the forest–air interface

Olli Peltola et al.

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Cited articles

Alekseychik, P., Mammarella, I., Launiainen, S., Rannik, U., and Vesala, T.: Evolution of the nocturnal decoupled layer in a pine forest canopy, Agr. Forest Meteorol., 174–175, 15–27, https://doi.org/10.1016/j.agrformet.2013.01.011, 2013. a
Aubinet, M., Feigenwinter, C., Heinesch, B., Bernhofer, C., Canepa, E., Lindroth, A., Montagnani, L., Rebmann, C., Sedlak, P., and Van Gorsel, E.: Direct advection measurements do not help to solve the night-time CO2 closure problem: Evidence from three different forests, Agr. Forest Meteorol., 150, 655–664, https://doi.org/10.1016/j.agrformet.2010.01.016, 2010. a
Baldocchi, D.: Measuring fluxes of trace gases and energy between ecosystems and the atmosphere – the state and future of the eddy covariance method, Glob. Change Biol., 20, 3600–3609, https://doi.org/10.1111/gcb.12649, 2014. a
Barlow, J. F.: Progress in observing and modelling the urban boundary layer, Urban Climate, 10, 216–240, https://doi.org/10.1016/j.uclim.2014.03.011, 2014. a
Bohrer, G., Katul, G. G., Walko, R. L., and Avissar, R.: Exploring the Effects of Microscale Structural Heterogeneity of Forest Canopies Using Large-Eddy Simulations, Bound.-Lay. Meteorol., 132, 351–382, https://doi.org/10.1007/s10546-009-9404-4, 2009. a
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We evaluated the suitability of fiber-optic distributed temperature sensing (DTS) for observing spatial (>25 cm) and temporal (>1 s) details of airflow within and above forests. The DTS measurements could discern up to third-order moments of the flow and observe spatial details of coherent flow motions. Similar measurements are not possible with more conventional measurement techniques. Hence, the DTS measurements will provide key insights into flows close to roughness elements, e.g. trees.