The Large eddy Observatory, Voitsumra Experiment 2019 (LOVE19) with high-resolution, spatially distributed observations of air temperature, wind speed, and wind direction from fiber-optic distributed sensing, towers, and ground-based remote sensing

Titelangaben

Lapo, Karl ; Freundorfer, Anita ; Fritz, Antonia ; Schneider, Johann ; Olesch, J. ; Babel, Wolfgang ; Thomas, Christoph:
The Large eddy Observatory, Voitsumra Experiment 2019 (LOVE19) with high-resolution, spatially distributed observations of air temperature, wind speed, and wind direction from fiber-optic distributed sensing, towers, and ground-based remote sensing.
In: Earth System Science Data. Bd. 14 (2022) Heft 2 . - S. 885-906.
ISSN 1866-3516
DOI der Verlagsversion: https://doi.org/10.5194/essd-14-885-2022

Volltext

	Format: PDF Name: Lapo_etal_2022_ESSD_LOVE19_field_campaign.pdf Version: Veröffentlichte Version Verfügbar mit der Lizenz Creative Commons BY 4.0: Namensnennung
	Download (11MB)

Abstract

The weak-wind stable boundary layer (wwSBL) is poorly described by theory and breaks basic as- sumptions necessary for observations of turbulence. Understanding the wwSBL requires distributed observa- tions capable of separating between sub-mesoscales and turbulent scales. To this end, we present the Large eddy Observatory, Voitsumra Experiment 2019 (LOVE19) which featured 2105m of fiber-optic distributed sensing (FODS) of air temperature and wind speed, as well as an experimental wind direction method, at scales as fine as 1 s and 0.127m in addition to a suite of point observations of turbulence and ground-based remote sensing profiling. Additionally, flights with a fiber-optic cable attached to a tethered balloon (termed FlyFOX, Flying Fiber Optics eXperiment) provide an unprecedentedly detailed view of the boundary layer structure with a res- olution of 0.254m and 10 s between 1 and 200m height. Two examples are provided, demonstrating the unique capabilities of the LOVE19 data for examining boundary layer processes: (1) FODS observations between 1 and 200m height during a period of gravity waves propagating across the entire boundary layer and (2) tracking a near-surface, transient, sub-mesoscale structure that causes an intermittent burst of turbulence. All data can be accessed at Zenodo through the DOI https://doi.org/10.5281/zenodo.4312976 (Lapo et al., 2020a).